Merge branch 'for_2.6.34_4f4e65_a' of git://git.pwsan.com/linux-2.6 into omap-for-linus

arch/arm/mach-omap1/clock.c

@@ -52,12 +52,6 @@ const struct clkops clkops_dummy = {
 	.disable	= clk_omap1_dummy_disable,
 };
 
-/* XXX can be replaced with a fixed_divisor_recalc */
-unsigned long omap1_watchdog_recalc(struct clk *clk)
-{
-	return clk->parent->rate / 14;
-}
-
 unsigned long omap1_uart_recalc(struct clk *clk)
 {
 	unsigned int val = __raw_readl(clk->enable_reg);

arch/arm/mach-omap1/clock_data.c

@@ -149,7 +149,8 @@ static struct arm_idlect1_clk armwdt_ck = {
 		.flags		= CLOCK_IDLE_CONTROL,
 		.enable_reg	= OMAP1_IO_ADDRESS(ARM_IDLECT2),
 		.enable_bit	= EN_WDTCK,
-		.recalc		= &omap1_watchdog_recalc,
+		.fixed_div	= 14,
+		.recalc		= &omap_fixed_divisor_recalc,
 	},
 	.idlect_shift	= 0,
 };

arch/arm/mach-omap2/Makefile

@@ -6,14 +6,22 @@
 obj-y := id.o io.o control.o mux.o devices.o serial.o gpmc.o timer-gp.o
 
 omap-2-3-common				= irq.o sdrc.o omap_hwmod.o
-omap-3-4-common				= dpll.o
+omap-3-4-common				= dpll3xxx.o
 prcm-common				= prcm.o powerdomain.o
-clock-common				= clock.o clock_common_data.o clockdomain.o
-
-obj-$(CONFIG_ARCH_OMAP2) += $(omap-2-3-common) $(prcm-common) $(clock-common)
+clock-common				= clock.o clock_common_data.o \
+					  clockdomain.o clkt_dpll.o \
+					  clkt_clksel.o
+clock-omap2xxx				= clkt2xxx_dpllcore.o \
+					  clkt2xxx_virt_prcm_set.o \
+					  clkt2xxx_apll.o clkt2xxx_osc.o \
+					  clkt2xxx_sys.o
+clock-omap3xxx				= clkt34xx_dpll3m2.o
+
+obj-$(CONFIG_ARCH_OMAP2) += $(omap-2-3-common) $(prcm-common) $(clock-common) \
+			    $(clock-omap2xxx)
 obj-$(CONFIG_ARCH_OMAP3) += $(omap-2-3-common) $(prcm-common) $(clock-common) \
-			    $(omap-3-4-common)
-obj-$(CONFIG_ARCH_OMAP4) += $(omap-3-4-common) prcm.o clock.o
+			    $(omap-3-4-common) $(clock-omap3xxx)
+obj-$(CONFIG_ARCH_OMAP4) += $(omap-3-4-common) $(prcm-common) $(clock-common)
 
 obj-$(CONFIG_OMAP_MCBSP) += mcbsp.o
 

arch/arm/mach-omap2/clkt2xxx_apll.c

@@ -0,0 +1,120 @@
+/*
+ * OMAP2xxx APLL clock control functions
+ *
+ * Copyright (C) 2005-2008 Texas Instruments, Inc.
+ * Copyright (C) 2004-2010 Nokia Corporation
+ *
+ * Contacts:
+ * Richard Woodruff <r-woodruff2@ti.com>
+ * Paul Walmsley
+ *
+ * Based on earlier work by Tuukka Tikkanen, Tony Lindgren,
+ * Gordon McNutt and RidgeRun, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#undef DEBUG
+
+#include <linux/kernel.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+
+#include <plat/clock.h>
+#include <plat/prcm.h>
+
+#include "clock.h"
+#include "clock2xxx.h"
+#include "cm.h"
+#include "cm-regbits-24xx.h"
+
+/* CM_CLKEN_PLL.EN_{54,96}M_PLL options (24XX) */
+#define EN_APLL_STOPPED			0
+#define EN_APLL_LOCKED			3
+
+/* CM_CLKSEL1_PLL.APLLS_CLKIN options (24XX) */
+#define APLLS_CLKIN_19_2MHZ		0
+#define APLLS_CLKIN_13MHZ		2
+#define APLLS_CLKIN_12MHZ		3
+
+/* Private functions */
+
+/* Enable an APLL if off */
+static int omap2_clk_apll_enable(struct clk *clk, u32 status_mask)
+{
+	u32 cval, apll_mask;
+
+	apll_mask = EN_APLL_LOCKED << clk->enable_bit;
+
+	cval = cm_read_mod_reg(PLL_MOD, CM_CLKEN);
+
+	if ((cval & apll_mask) == apll_mask)
+		return 0;   /* apll already enabled */
+
+	cval &= ~apll_mask;
+	cval |= apll_mask;
+	cm_write_mod_reg(cval, PLL_MOD, CM_CLKEN);
+
+	omap2_cm_wait_idlest(OMAP_CM_REGADDR(PLL_MOD, CM_IDLEST), status_mask,
+			     clk->name);
+
+	/*
+	 * REVISIT: Should we return an error code if omap2_wait_clock_ready()
+	 * fails?
+	 */
+	return 0;
+}
+
+static int omap2_clk_apll96_enable(struct clk *clk)
+{
+	return omap2_clk_apll_enable(clk, OMAP24XX_ST_96M_APLL);
+}
+
+static int omap2_clk_apll54_enable(struct clk *clk)
+{
+	return omap2_clk_apll_enable(clk, OMAP24XX_ST_54M_APLL);
+}
+
+/* Stop APLL */
+static void omap2_clk_apll_disable(struct clk *clk)
+{
+	u32 cval;
+
+	cval = cm_read_mod_reg(PLL_MOD, CM_CLKEN);
+	cval &= ~(EN_APLL_LOCKED << clk->enable_bit);
+	cm_write_mod_reg(cval, PLL_MOD, CM_CLKEN);
+}
+
+/* Public data */
+
+const struct clkops clkops_apll96 = {
+	.enable		= omap2_clk_apll96_enable,
+	.disable	= omap2_clk_apll_disable,
+};
+
+const struct clkops clkops_apll54 = {
+	.enable		= omap2_clk_apll54_enable,
+	.disable	= omap2_clk_apll_disable,
+};
+
+/* Public functions */
+
+u32 omap2xxx_get_apll_clkin(void)
+{
+	u32 aplls, srate = 0;
+
+	aplls = cm_read_mod_reg(PLL_MOD, CM_CLKSEL1);
+	aplls &= OMAP24XX_APLLS_CLKIN_MASK;
+	aplls >>= OMAP24XX_APLLS_CLKIN_SHIFT;
+
+	if (aplls == APLLS_CLKIN_19_2MHZ)
+		srate = 19200000;
+	else if (aplls == APLLS_CLKIN_13MHZ)
+		srate = 13000000;
+	else if (aplls == APLLS_CLKIN_12MHZ)
+		srate = 12000000;
+
+	return srate;
+}
+

arch/arm/mach-omap2/clkt2xxx_dpllcore.c

@@ -0,0 +1,173 @@
+/*
+ * DPLL + CORE_CLK composite clock functions
+ *
+ * Copyright (C) 2005-2008 Texas Instruments, Inc.
+ * Copyright (C) 2004-2010 Nokia Corporation
+ *
+ * Contacts:
+ * Richard Woodruff <r-woodruff2@ti.com>
+ * Paul Walmsley
+ *
+ * Based on earlier work by Tuukka Tikkanen, Tony Lindgren,
+ * Gordon McNutt and RidgeRun, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * XXX The DPLL and CORE clocks should be split into two separate clock
+ * types.
+ */
+#undef DEBUG
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+
+#include <plat/clock.h>
+#include <plat/sram.h>
+#include <plat/sdrc.h>
+
+#include "clock.h"
+#include "clock2xxx.h"
+#include "opp2xxx.h"
+#include "cm.h"
+#include "cm-regbits-24xx.h"
+
+/* #define DOWN_VARIABLE_DPLL 1 */		/* Experimental */
+
+/**
+ * omap2xxx_clk_get_core_rate - return the CORE_CLK rate
+ * @clk: pointer to the combined dpll_ck + core_ck (currently "dpll_ck")
+ *
+ * Returns the CORE_CLK rate.  CORE_CLK can have one of three rate
+ * sources on OMAP2xxx: the DPLL CLKOUT rate, DPLL CLKOUTX2, or 32KHz
+ * (the latter is unusual).  This currently should be called with
+ * struct clk *dpll_ck, which is a composite clock of dpll_ck and
+ * core_ck.
+ */
+unsigned long omap2xxx_clk_get_core_rate(struct clk *clk)
+{
+	long long core_clk;
+	u32 v;
+
+	core_clk = omap2_get_dpll_rate(clk);
+
+	v = cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
+	v &= OMAP24XX_CORE_CLK_SRC_MASK;
+
+	if (v == CORE_CLK_SRC_32K)
+		core_clk = 32768;
+	else
+		core_clk *= v;
+
+	return core_clk;
+}
+
+/*
+ * Uses the current prcm set to tell if a rate is valid.
+ * You can go slower, but not faster within a given rate set.
+ */
+static long omap2_dpllcore_round_rate(unsigned long target_rate)
+{
+	u32 high, low, core_clk_src;
+
+	core_clk_src = cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
+	core_clk_src &= OMAP24XX_CORE_CLK_SRC_MASK;
+
+	if (core_clk_src == CORE_CLK_SRC_DPLL) {	/* DPLL clockout */
+		high = curr_prcm_set->dpll_speed * 2;
+		low = curr_prcm_set->dpll_speed;
+	} else {				/* DPLL clockout x 2 */
+		high = curr_prcm_set->dpll_speed;
+		low = curr_prcm_set->dpll_speed / 2;
+	}
+
+#ifdef DOWN_VARIABLE_DPLL
+	if (target_rate > high)
+		return high;
+	else
+		return target_rate;
+#else
+	if (target_rate > low)
+		return high;
+	else
+		return low;
+#endif
+
+}
+
+unsigned long omap2_dpllcore_recalc(struct clk *clk)
+{
+	return omap2xxx_clk_get_core_rate(clk);
+}
+
+int omap2_reprogram_dpllcore(struct clk *clk, unsigned long rate)
+{
+	u32 cur_rate, low, mult, div, valid_rate, done_rate;
+	u32 bypass = 0;
+	struct prcm_config tmpset;
+	const struct dpll_data *dd;
+
+	cur_rate = omap2xxx_clk_get_core_rate(dclk);
+	mult = cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
+	mult &= OMAP24XX_CORE_CLK_SRC_MASK;
+
+	if ((rate == (cur_rate / 2)) && (mult == 2)) {
+		omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL, 1);
+	} else if ((rate == (cur_rate * 2)) && (mult == 1)) {
+		omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL_X2, 1);
+	} else if (rate != cur_rate) {
+		valid_rate = omap2_dpllcore_round_rate(rate);
+		if (valid_rate != rate)
+			return -EINVAL;
+
+		if (mult == 1)
+			low = curr_prcm_set->dpll_speed;
+		else
+			low = curr_prcm_set->dpll_speed / 2;
+
+		dd = clk->dpll_data;
+		if (!dd)
+			return -EINVAL;
+
+		tmpset.cm_clksel1_pll = __raw_readl(dd->mult_div1_reg);
+		tmpset.cm_clksel1_pll &= ~(dd->mult_mask |
+					   dd->div1_mask);
+		div = ((curr_prcm_set->xtal_speed / 1000000) - 1);
+		tmpset.cm_clksel2_pll = cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
+		tmpset.cm_clksel2_pll &= ~OMAP24XX_CORE_CLK_SRC_MASK;
+		if (rate > low) {
+			tmpset.cm_clksel2_pll |= CORE_CLK_SRC_DPLL_X2;
+			mult = ((rate / 2) / 1000000);
+			done_rate = CORE_CLK_SRC_DPLL_X2;
+		} else {
+			tmpset.cm_clksel2_pll |= CORE_CLK_SRC_DPLL;
+			mult = (rate / 1000000);
+			done_rate = CORE_CLK_SRC_DPLL;
+		}
+		tmpset.cm_clksel1_pll |= (div << __ffs(dd->mult_mask));
+		tmpset.cm_clksel1_pll |= (mult << __ffs(dd->div1_mask));
+
+		/* Worst case */
+		tmpset.base_sdrc_rfr = SDRC_RFR_CTRL_BYPASS;
+
+		if (rate == curr_prcm_set->xtal_speed)	/* If asking for 1-1 */
+			bypass = 1;
+
+		/* For omap2xxx_sdrc_init_params() */
+		omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL_X2, 1);
+
+		/* Force dll lock mode */
+		omap2_set_prcm(tmpset.cm_clksel1_pll, tmpset.base_sdrc_rfr,
+			       bypass);
+
+		/* Errata: ret dll entry state */
+		omap2xxx_sdrc_init_params(omap2xxx_sdrc_dll_is_unlocked());
+		omap2xxx_sdrc_reprogram(done_rate, 0);
+	}
+
+	return 0;
+}
+

arch/arm/mach-omap2/clkt2xxx_osc.c

@@ -0,0 +1,62 @@
+/*
+ * OMAP2xxx osc_clk-specific clock code
+ *
+ * Copyright (C) 2005-2008 Texas Instruments, Inc.
+ * Copyright (C) 2004-2010 Nokia Corporation
+ *
+ * Contacts:
+ * Richard Woodruff <r-woodruff2@ti.com>
+ * Paul Walmsley
+ *
+ * Based on earlier work by Tuukka Tikkanen, Tony Lindgren,
+ * Gordon McNutt and RidgeRun, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#undef DEBUG
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+
+#include <plat/clock.h>
+
+#include "clock.h"
+#include "clock2xxx.h"
+#include "prm.h"
+#include "prm-regbits-24xx.h"
+
+static int omap2_enable_osc_ck(struct clk *clk)
+{
+	u32 pcc;
+
+	pcc = __raw_readl(prcm_clksrc_ctrl);
+
+	__raw_writel(pcc & ~OMAP_AUTOEXTCLKMODE_MASK, prcm_clksrc_ctrl);
+
+	return 0;
+}
+
+static void omap2_disable_osc_ck(struct clk *clk)
+{
+	u32 pcc;
+
+	pcc = __raw_readl(prcm_clksrc_ctrl);
+
+	__raw_writel(pcc | OMAP_AUTOEXTCLKMODE_MASK, prcm_clksrc_ctrl);
+}
+
+const struct clkops clkops_oscck = {
+	.enable		= omap2_enable_osc_ck,
+	.disable	= omap2_disable_osc_ck,
+};
+
+unsigned long omap2_osc_clk_recalc(struct clk *clk)
+{
+	return omap2xxx_get_apll_clkin() * omap2xxx_get_sysclkdiv();
+}
+

arch/arm/mach-omap2/clkt2xxx_sys.c

@@ -0,0 +1,50 @@
+/*
+ * OMAP2xxx sys_clk-specific clock code
+ *
+ * Copyright (C) 2005-2008 Texas Instruments, Inc.
+ * Copyright (C) 2004-2010 Nokia Corporation
+ *
+ * Contacts:
+ * Richard Woodruff <r-woodruff2@ti.com>
+ * Paul Walmsley
+ *
+ * Based on earlier work by Tuukka Tikkanen, Tony Lindgren,
+ * Gordon McNutt and RidgeRun, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#undef DEBUG
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+
+#include <plat/clock.h>
+
+#include "clock.h"
+#include "clock2xxx.h"
+#include "prm.h"
+#include "prm-regbits-24xx.h"
+
+void __iomem *prcm_clksrc_ctrl;
+
+u32 omap2xxx_get_sysclkdiv(void)
+{
+	u32 div;
+
+	div = __raw_readl(prcm_clksrc_ctrl);
+	div &= OMAP_SYSCLKDIV_MASK;
+	div >>= OMAP_SYSCLKDIV_SHIFT;
+
+	return div;
+}
+
+unsigned long omap2xxx_sys_clk_recalc(struct clk *clk)
+{
+	return clk->parent->rate / omap2xxx_get_sysclkdiv();
+}
+
+

arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c

@@ -0,0 +1,254 @@
+/*
+ * OMAP2xxx DVFS virtual clock functions
+ *
+ * Copyright (C) 2005-2008 Texas Instruments, Inc.
+ * Copyright (C) 2004-2010 Nokia Corporation
+ *
+ * Contacts:
+ * Richard Woodruff <r-woodruff2@ti.com>
+ * Paul Walmsley
+ *
+ * Based on earlier work by Tuukka Tikkanen, Tony Lindgren,
+ * Gordon McNutt and RidgeRun, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * XXX Some of this code should be replaceable by the upcoming OPP layer
+ * code.  However, some notion of "rate set" is probably still necessary
+ * for OMAP2xxx at least.  Rate sets should be generalized so they can be
+ * used for any OMAP chip, not just OMAP2xxx.  In particular, Richard Woodruff
+ * has in the past expressed a preference to use rate sets for OPP changes,
+ * rather than dynamically recalculating the clock tree, so if someone wants
+ * this badly enough to write the code to handle it, we should support it
+ * as an option.
+ */
+#undef DEBUG
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/cpufreq.h>
+
+#include <plat/clock.h>
+#include <plat/sram.h>
+#include <plat/sdrc.h>
+
+#include "clock.h"
+#include "clock2xxx.h"
+#include "opp2xxx.h"
+#include "cm.h"
+#include "cm-regbits-24xx.h"
+
+const struct prcm_config *curr_prcm_set;
+const struct prcm_config *rate_table;
+
+/**
+ * omap2_table_mpu_recalc - just return the MPU speed
+ * @clk: virt_prcm_set struct clk
+ *
+ * Set virt_prcm_set's rate to the mpu_speed field of the current PRCM set.
+ */
+unsigned long omap2_table_mpu_recalc(struct clk *clk)
+{
+	return curr_prcm_set->mpu_speed;
+}
+
+/*
+ * Look for a rate equal or less than the target rate given a configuration set.
+ *
+ * What's not entirely clear is "which" field represents the key field.
+ * Some might argue L3-DDR, others ARM, others IVA. This code is simple and
+ * just uses the ARM rates.
+ */
+long omap2_round_to_table_rate(struct clk *clk, unsigned long rate)
+{
+	const struct prcm_config *ptr;
+	long highest_rate;
+	long sys_ck_rate;
+
+	sys_ck_rate = clk_get_rate(sclk);
+
+	highest_rate = -EINVAL;
+
+	for (ptr = rate_table; ptr->mpu_speed; ptr++) {
+		if (!(ptr->flags & cpu_mask))
+			continue;
+		if (ptr->xtal_speed != sys_ck_rate)
+			continue;
+
+		highest_rate = ptr->mpu_speed;
+
+		/* Can check only after xtal frequency check */
+		if (ptr->mpu_speed <= rate)
+			break;
+	}
+	return highest_rate;
+}
+
+/* Sets basic clocks based on the specified rate */
+int omap2_select_table_rate(struct clk *clk, unsigned long rate)
+{
+	u32 cur_rate, done_rate, bypass = 0, tmp;
+	const struct prcm_config *prcm;
+	unsigned long found_speed = 0;
+	unsigned long flags;
+	long sys_ck_rate;
+
+	sys_ck_rate = clk_get_rate(sclk);
+
+	for (prcm = rate_table; prcm->mpu_speed; prcm++) {
+		if (!(prcm->flags & cpu_mask))
+			continue;
+
+		if (prcm->xtal_speed != sys_ck_rate)
+			continue;
+
+		if (prcm->mpu_speed <= rate) {
+			found_speed = prcm->mpu_speed;
+			break;
+		}
+	}
+
+	if (!found_speed) {
+		printk(KERN_INFO "Could not set MPU rate to %luMHz\n",
+		       rate / 1000000);
+		return -EINVAL;
+	}
+
+	curr_prcm_set = prcm;
+	cur_rate = omap2xxx_clk_get_core_rate(dclk);
+
+	if (prcm->dpll_speed == cur_rate / 2) {
+		omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL, 1);
+	} else if (prcm->dpll_speed == cur_rate * 2) {
+		omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL_X2, 1);
+	} else if (prcm->dpll_speed != cur_rate) {
+		local_irq_save(flags);
+
+		if (prcm->dpll_speed == prcm->xtal_speed)
+			bypass = 1;
+
+		if ((prcm->cm_clksel2_pll & OMAP24XX_CORE_CLK_SRC_MASK) ==
+		    CORE_CLK_SRC_DPLL_X2)
+			done_rate = CORE_CLK_SRC_DPLL_X2;
+		else
+			done_rate = CORE_CLK_SRC_DPLL;
+
+		/* MPU divider */
+		cm_write_mod_reg(prcm->cm_clksel_mpu, MPU_MOD, CM_CLKSEL);
+
+		/* dsp + iva1 div(2420), iva2.1(2430) */
+		cm_write_mod_reg(prcm->cm_clksel_dsp,
+				 OMAP24XX_DSP_MOD, CM_CLKSEL);
+
+		cm_write_mod_reg(prcm->cm_clksel_gfx, GFX_MOD, CM_CLKSEL);
+
+		/* Major subsystem dividers */
+		tmp = cm_read_mod_reg(CORE_MOD, CM_CLKSEL1) & OMAP24XX_CLKSEL_DSS2_MASK;
+		cm_write_mod_reg(prcm->cm_clksel1_core | tmp, CORE_MOD,
+				 CM_CLKSEL1);
+
+		if (cpu_is_omap2430())
+			cm_write_mod_reg(prcm->cm_clksel_mdm,
+					 OMAP2430_MDM_MOD, CM_CLKSEL);
+
+		/* x2 to enter omap2xxx_sdrc_init_params() */
+		omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL_X2, 1);
+
+		omap2_set_prcm(prcm->cm_clksel1_pll, prcm->base_sdrc_rfr,
+			       bypass);
+
+		omap2xxx_sdrc_init_params(omap2xxx_sdrc_dll_is_unlocked());
+		omap2xxx_sdrc_reprogram(done_rate, 0);
+
+		local_irq_restore(flags);
+	}
+
+	return 0;
+}
+
+#ifdef CONFIG_CPU_FREQ
+/*
+ * Walk PRCM rate table and fillout cpufreq freq_table
+ * XXX This should be replaced by an OPP layer in the near future
+ */
+static struct cpufreq_frequency_table *freq_table;
+
+void omap2_clk_init_cpufreq_table(struct cpufreq_frequency_table **table)
+{
+	const struct prcm_config *prcm;
+	long sys_ck_rate;
+	int i = 0;
+	int tbl_sz = 0;
+
+	if (!cpu_is_omap24xx())
+		return;
+
+	sys_ck_rate = clk_get_rate(sclk);
+
+	for (prcm = rate_table; prcm->mpu_speed; prcm++) {
+		if (!(prcm->flags & cpu_mask))
+			continue;
+		if (prcm->xtal_speed != sys_ck_rate)
+			continue;
+
+		/* don't put bypass rates in table */
+		if (prcm->dpll_speed == prcm->xtal_speed)
+			continue;
+
+		tbl_sz++;
+	}
+
+	/*
+	 * XXX Ensure that we're doing what CPUFreq expects for this error
+	 * case and the following one
+	 */
+	if (tbl_sz == 0) {
+		pr_warning("%s: no matching entries in rate_table\n",
+			   __func__);
+		return;
+	}
+
+	/* Include the CPUFREQ_TABLE_END terminator entry */
+	tbl_sz++;
+
+	freq_table = kzalloc(sizeof(struct cpufreq_frequency_table) * tbl_sz,
+			     GFP_ATOMIC);
+	if (!freq_table) {
+		pr_err("%s: could not kzalloc frequency table\n", __func__);
+		return;
+	}
+
+	for (prcm = rate_table; prcm->mpu_speed; prcm++) {
+		if (!(prcm->flags & cpu_mask))
+			continue;
+		if (prcm->xtal_speed != sys_ck_rate)
+			continue;
+
+		/* don't put bypass rates in table */
+		if (prcm->dpll_speed == prcm->xtal_speed)
+			continue;
+
+		freq_table[i].index = i;
+		freq_table[i].frequency = prcm->mpu_speed / 1000;
+		i++;
+	}
+
+	freq_table[i].index = i;
+	freq_table[i].frequency = CPUFREQ_TABLE_END;
+
+	*table = &freq_table[0];
+}
+
+void omap2_clk_exit_cpufreq_table(struct cpufreq_frequency_table **table)
+{
+	if (!cpu_is_omap24xx())
+		return;
+
+	kfree(freq_table);
+}
+
+#endif

arch/arm/mach-omap2/clkt34xx_dpll3m2.c

@@ -0,0 +1,120 @@
+/*
+ * OMAP34xx M2 divider clock code
+ *
+ * Copyright (C) 2007-2008 Texas Instruments, Inc.
+ * Copyright (C) 2007-2010 Nokia Corporation
+ *
+ * Paul Walmsley
+ * Jouni Högander
+ *
+ * Parts of this code are based on code written by
+ * Richard Woodruff, Tony Lindgren, Tuukka Tikkanen, Karthik Dasu
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#undef DEBUG
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+
+#include <plat/clock.h>
+#include <plat/sram.h>
+#include <plat/sdrc.h>
+
+#include "clock.h"
+#include "clock34xx.h"
+#include "sdrc.h"
+
+#define CYCLES_PER_MHZ			1000000
+
+/*
+ * CORE DPLL (DPLL3) M2 divider rate programming functions
+ *
+ * These call into SRAM code to do the actual CM writes, since the SDRAM
+ * is clocked from DPLL3.
+ */
+
+/**
+ * omap3_core_dpll_m2_set_rate - set CORE DPLL M2 divider
+ * @clk: struct clk * of DPLL to set
+ * @rate: rounded target rate
+ *
+ * Program the DPLL M2 divider with the rounded target rate.  Returns
+ * -EINVAL upon error, or 0 upon success.
+ */
+int omap3_core_dpll_m2_set_rate(struct clk *clk, unsigned long rate)
+{
+	u32 new_div = 0;
+	u32 unlock_dll = 0;
+	u32 c;
+	unsigned long validrate, sdrcrate, _mpurate;
+	struct omap_sdrc_params *sdrc_cs0;
+	struct omap_sdrc_params *sdrc_cs1;
+	int ret;
+
+	if (!clk || !rate)
+		return -EINVAL;
+
+	validrate = omap2_clksel_round_rate_div(clk, rate, &new_div);
+	if (validrate != rate)
+		return -EINVAL;
+
+	sdrcrate = sdrc_ick_p->rate;
+	if (rate > clk->rate)
+		sdrcrate <<= ((rate / clk->rate) >> 1);
+	else
+		sdrcrate >>= ((clk->rate / rate) >> 1);
+
+	ret = omap2_sdrc_get_params(sdrcrate, &sdrc_cs0, &sdrc_cs1);
+	if (ret)
+		return -EINVAL;
+
+	if (sdrcrate < MIN_SDRC_DLL_LOCK_FREQ) {
+		pr_debug("clock: will unlock SDRC DLL\n");
+		unlock_dll = 1;
+	}
+
+	/*
+	 * XXX This only needs to be done when the CPU frequency changes
+	 */
+	_mpurate = arm_fck_p->rate / CYCLES_PER_MHZ;
+	c = (_mpurate << SDRC_MPURATE_SCALE) >> SDRC_MPURATE_BASE_SHIFT;
+	c += 1;  /* for safety */
+	c *= SDRC_MPURATE_LOOPS;
+	c >>= SDRC_MPURATE_SCALE;
+	if (c == 0)
+		c = 1;
+
+	pr_debug("clock: changing CORE DPLL rate from %lu to %lu\n", clk->rate,
+		 validrate);
+	pr_debug("clock: SDRC CS0 timing params used:"
+		 " RFR %08x CTRLA %08x CTRLB %08x MR %08x\n",
+		 sdrc_cs0->rfr_ctrl, sdrc_cs0->actim_ctrla,
+		 sdrc_cs0->actim_ctrlb, sdrc_cs0->mr);
+	if (sdrc_cs1)
+		pr_debug("clock: SDRC CS1 timing params used: "
+		 " RFR %08x CTRLA %08x CTRLB %08x MR %08x\n",
+		 sdrc_cs1->rfr_ctrl, sdrc_cs1->actim_ctrla,
+		 sdrc_cs1->actim_ctrlb, sdrc_cs1->mr);
+
+	if (sdrc_cs1)
+		omap3_configure_core_dpll(
+				  new_div, unlock_dll, c, rate > clk->rate,
+				  sdrc_cs0->rfr_ctrl, sdrc_cs0->actim_ctrla,
+				  sdrc_cs0->actim_ctrlb, sdrc_cs0->mr,
+				  sdrc_cs1->rfr_ctrl, sdrc_cs1->actim_ctrla,
+				  sdrc_cs1->actim_ctrlb, sdrc_cs1->mr);
+	else
+		omap3_configure_core_dpll(
+				  new_div, unlock_dll, c, rate > clk->rate,
+				  sdrc_cs0->rfr_ctrl, sdrc_cs0->actim_ctrla,
+				  sdrc_cs0->actim_ctrlb, sdrc_cs0->mr,
+				  0, 0, 0, 0);
+
+	return 0;
+}
+

arch/arm/mach-omap2/clkt_clksel.c

@@ -0,0 +1,417 @@
+/*
+ * clkt_clksel.c - OMAP2/3/4 clksel clock functions
+ *
+ * Copyright (C) 2005-2008 Texas Instruments, Inc.
+ * Copyright (C) 2004-2010 Nokia Corporation
+ *
+ * Contacts:
+ * Richard Woodruff <r-woodruff2@ti.com>
+ * Paul Walmsley
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * XXX At some point these clksel clocks should be split into
+ * "divider" clocks and "mux" clocks to better match the hardware.
+ *
+ * XXX Currently these clocks are only used in the OMAP2/3/4 code, but
+ * many of the OMAP1 clocks should be convertible to use this
+ * mechanism.
+ */
+#undef DEBUG
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+
+#include <plat/clock.h>
+
+#include "clock.h"
+#include "cm.h"
+#include "cm-regbits-24xx.h"
+#include "cm-regbits-34xx.h"
+
+/* Private functions */
+
+/**
+ * _omap2_get_clksel_by_parent - return clksel struct for a given clk & parent
+ * @clk: OMAP struct clk ptr to inspect
+ * @src_clk: OMAP struct clk ptr of the parent clk to search for
+ *
+ * Scan the struct clksel array associated with the clock to find
+ * the element associated with the supplied parent clock address.
+ * Returns a pointer to the struct clksel on success or NULL on error.
+ */
+static const struct clksel *_omap2_get_clksel_by_parent(struct clk *clk,
+							struct clk *src_clk)
+{
+	const struct clksel *clks;
+
+	if (!clk->clksel)
+		return NULL;
+
+	for (clks = clk->clksel; clks->parent; clks++) {
+		if (clks->parent == src_clk)
+			break; /* Found the requested parent */
+	}
+
+	if (!clks->parent) {
+		printk(KERN_ERR "clock: Could not find parent clock %s in "
+		       "clksel array of clock %s\n", src_clk->name,
+		       clk->name);
+		return NULL;
+	}
+
+	return clks;
+}
+
+/*
+ * Converts encoded control register address into a full address
+ * On error, the return value (parent_div) will be 0.
+ */
+static u32 _omap2_clksel_get_src_field(struct clk *src_clk, struct clk *clk,
+				       u32 *field_val)
+{
+	const struct clksel *clks;
+	const struct clksel_rate *clkr;
+
+	clks = _omap2_get_clksel_by_parent(clk, src_clk);
+	if (!clks)
+		return 0;
+
+	for (clkr = clks->rates; clkr->div; clkr++) {
+		if (clkr->flags & cpu_mask && clkr->flags & DEFAULT_RATE)
+			break; /* Found the default rate for this platform */
+	}
+
+	if (!clkr->div) {
+		printk(KERN_ERR "clock: Could not find default rate for "
+		       "clock %s parent %s\n", clk->name,
+		       src_clk->parent->name);
+		return 0;
+	}
+
+	/* Should never happen.  Add a clksel mask to the struct clk. */
+	WARN_ON(clk->clksel_mask == 0);
+
+	*field_val = clkr->val;
+
+	return clkr->div;
+}
+
+
+/* Public functions */
+
+/**
+ * omap2_init_clksel_parent - set a clksel clk's parent field from the hardware
+ * @clk: OMAP clock struct ptr to use
+ *
+ * Given a pointer to a source-selectable struct clk, read the hardware
+ * register and determine what its parent is currently set to.  Update the
+ * clk->parent field with the appropriate clk ptr.
+ */
+void omap2_init_clksel_parent(struct clk *clk)
+{
+	const struct clksel *clks;
+	const struct clksel_rate *clkr;
+	u32 r, found = 0;
+
+	if (!clk->clksel)
+		return;
+
+	r = __raw_readl(clk->clksel_reg) & clk->clksel_mask;
+	r >>= __ffs(clk->clksel_mask);
+
+	for (clks = clk->clksel; clks->parent && !found; clks++) {
+		for (clkr = clks->rates; clkr->div && !found; clkr++) {
+			if ((clkr->flags & cpu_mask) && (clkr->val == r)) {
+				if (clk->parent != clks->parent) {
+					pr_debug("clock: inited %s parent "
+						 "to %s (was %s)\n",
+						 clk->name, clks->parent->name,
+						 ((clk->parent) ?
+						  clk->parent->name : "NULL"));
+					clk_reparent(clk, clks->parent);
+				};
+				found = 1;
+			}
+		}
+	}
+
+	if (!found)
+		printk(KERN_ERR "clock: init parent: could not find "
+		       "regval %0x for clock %s\n", r,  clk->name);
+
+	return;
+}
+
+/*
+ * Used for clocks that are part of CLKSEL_xyz governed clocks.
+ * REVISIT: Maybe change to use clk->enable() functions like on omap1?
+ */
+unsigned long omap2_clksel_recalc(struct clk *clk)
+{
+	unsigned long rate;
+	u32 div = 0;
+
+	pr_debug("clock: recalc'ing clksel clk %s\n", clk->name);
+
+	div = omap2_clksel_get_divisor(clk);
+	if (div == 0)
+		return clk->rate;
+
+	rate = clk->parent->rate / div;
+
+	pr_debug("clock: new clock rate is %ld (div %d)\n", rate, div);
+
+	return rate;
+}
+
+/**
+ * omap2_clksel_round_rate_div - find divisor for the given clock and rate
+ * @clk: OMAP struct clk to use
+ * @target_rate: desired clock rate
+ * @new_div: ptr to where we should store the divisor
+ *
+ * Finds 'best' divider value in an array based on the source and target
+ * rates.  The divider array must be sorted with smallest divider first.
+ * Note that this will not work for clocks which are part of CONFIG_PARTICIPANT,
+ * they are only settable as part of virtual_prcm set.
+ *
+ * Returns the rounded clock rate or returns 0xffffffff on error.
+ */
+u32 omap2_clksel_round_rate_div(struct clk *clk, unsigned long target_rate,
+				u32 *new_div)
+{
+	unsigned long test_rate;
+	const struct clksel *clks;
+	const struct clksel_rate *clkr;
+	u32 last_div = 0;
+
+	pr_debug("clock: clksel_round_rate_div: %s target_rate %ld\n",
+		 clk->name, target_rate);
+
+	*new_div = 1;
+
+	clks = _omap2_get_clksel_by_parent(clk, clk->parent);
+	if (!clks)
+		return ~0;
+
+	for (clkr = clks->rates; clkr->div; clkr++) {
+		if (!(clkr->flags & cpu_mask))
+			continue;
+
+		/* Sanity check */
+		if (clkr->div <= last_div)
+			pr_err("clock: clksel_rate table not sorted "
+			       "for clock %s", clk->name);
+
+		last_div = clkr->div;
+
+		test_rate = clk->parent->rate / clkr->div;
+
+		if (test_rate <= target_rate)
+			break; /* found it */
+	}
+
+	if (!clkr->div) {
+		pr_err("clock: Could not find divisor for target "
+		       "rate %ld for clock %s parent %s\n", target_rate,
+		       clk->name, clk->parent->name);
+		return ~0;
+	}
+
+	*new_div = clkr->div;
+
+	pr_debug("clock: new_div = %d, new_rate = %ld\n", *new_div,
+		 (clk->parent->rate / clkr->div));
+
+	return clk->parent->rate / clkr->div;
+}
+
+/**
+ * omap2_clksel_round_rate - find rounded rate for the given clock and rate
+ * @clk: OMAP struct clk to use
+ * @target_rate: desired clock rate
+ *
+ * Compatibility wrapper for OMAP clock framework
+ * Finds best target rate based on the source clock and possible dividers.
+ * rates. The divider array must be sorted with smallest divider first.
+ * Note that this will not work for clocks which are part of CONFIG_PARTICIPANT,
+ * they are only settable as part of virtual_prcm set.
+ *
+ * Returns the rounded clock rate or returns 0xffffffff on error.
+ */
+long omap2_clksel_round_rate(struct clk *clk, unsigned long target_rate)
+{
+	u32 new_div;
+
+	return omap2_clksel_round_rate_div(clk, target_rate, &new_div);
+}
+
+
+/* Given a clock and a rate apply a clock specific rounding function */
+long omap2_clk_round_rate(struct clk *clk, unsigned long rate)
+{
+	if (clk->round_rate)
+		return clk->round_rate(clk, rate);
+
+	if (clk->flags & RATE_FIXED)
+		printk(KERN_ERR "clock: generic omap2_clk_round_rate called "
+		       "on fixed-rate clock %s\n", clk->name);
+
+	return clk->rate;
+}
+
+/**
+ * omap2_clksel_to_divisor() - turn clksel field value into integer divider
+ * @clk: OMAP struct clk to use
+ * @field_val: register field value to find
+ *
+ * Given a struct clk of a rate-selectable clksel clock, and a register field
+ * value to search for, find the corresponding clock divisor.  The register
+ * field value should be pre-masked and shifted down so the LSB is at bit 0
+ * before calling.  Returns 0 on error
+ */
+u32 omap2_clksel_to_divisor(struct clk *clk, u32 field_val)
+{
+	const struct clksel *clks;
+	const struct clksel_rate *clkr;
+
+	clks = _omap2_get_clksel_by_parent(clk, clk->parent);
+	if (!clks)
+		return 0;
+
+	for (clkr = clks->rates; clkr->div; clkr++) {
+		if ((clkr->flags & cpu_mask) && (clkr->val == field_val))
+			break;
+	}
+
+	if (!clkr->div) {
+		printk(KERN_ERR "clock: Could not find fieldval %d for "
+		       "clock %s parent %s\n", field_val, clk->name,
+		       clk->parent->name);
+		return 0;
+	}
+
+	return clkr->div;
+}
+
+/**
+ * omap2_divisor_to_clksel() - turn clksel integer divisor into a field value
+ * @clk: OMAP struct clk to use
+ * @div: integer divisor to search for
+ *
+ * Given a struct clk of a rate-selectable clksel clock, and a clock divisor,
+ * find the corresponding register field value.  The return register value is
+ * the value before left-shifting.  Returns ~0 on error
+ */
+u32 omap2_divisor_to_clksel(struct clk *clk, u32 div)
+{
+	const struct clksel *clks;
+	const struct clksel_rate *clkr;
+
+	/* should never happen */
+	WARN_ON(div == 0);
+
+	clks = _omap2_get_clksel_by_parent(clk, clk->parent);
+	if (!clks)
+		return ~0;
+
+	for (clkr = clks->rates; clkr->div; clkr++) {
+		if ((clkr->flags & cpu_mask) && (clkr->div == div))
+			break;
+	}
+
+	if (!clkr->div) {
+		printk(KERN_ERR "clock: Could not find divisor %d for "
+		       "clock %s parent %s\n", div, clk->name,
+		       clk->parent->name);
+		return ~0;
+	}
+
+	return clkr->val;
+}
+
+/**
+ * omap2_clksel_get_divisor - get current divider applied to parent clock.
+ * @clk: OMAP struct clk to use.
+ *
+ * Returns the integer divisor upon success or 0 on error.
+ */
+u32 omap2_clksel_get_divisor(struct clk *clk)
+{
+	u32 v;
+
+	if (!clk->clksel_mask)
+		return 0;
+
+	v = __raw_readl(clk->clksel_reg) & clk->clksel_mask;
+	v >>= __ffs(clk->clksel_mask);
+
+	return omap2_clksel_to_divisor(clk, v);
+}
+
+int omap2_clksel_set_rate(struct clk *clk, unsigned long rate)
+{
+	u32 v, field_val, validrate, new_div = 0;
+
+	if (!clk->clksel_mask)
+		return -EINVAL;
+
+	validrate = omap2_clksel_round_rate_div(clk, rate, &new_div);
+	if (validrate != rate)
+		return -EINVAL;
+
+	field_val = omap2_divisor_to_clksel(clk, new_div);
+	if (field_val == ~0)
+		return -EINVAL;
+
+	v = __raw_readl(clk->clksel_reg);
+	v &= ~clk->clksel_mask;
+	v |= field_val << __ffs(clk->clksel_mask);
+	__raw_writel(v, clk->clksel_reg);
+	v = __raw_readl(clk->clksel_reg); /* OCP barrier */
+
+	clk->rate = clk->parent->rate / new_div;
+
+	omap2xxx_clk_commit(clk);
+
+	return 0;
+}
+
+int omap2_clksel_set_parent(struct clk *clk, struct clk *new_parent)
+{
+	u32 field_val, v, parent_div;
+
+	if (!clk->clksel)
+		return -EINVAL;
+
+	parent_div = _omap2_clksel_get_src_field(new_parent, clk, &field_val);
+	if (!parent_div)
+		return -EINVAL;
+
+	/* Set new source value (previous dividers if any in effect) */
+	v = __raw_readl(clk->clksel_reg);
+	v &= ~clk->clksel_mask;
+	v |= field_val << __ffs(clk->clksel_mask);
+	__raw_writel(v, clk->clksel_reg);
+	v = __raw_readl(clk->clksel_reg);    /* OCP barrier */
+
+	omap2xxx_clk_commit(clk);
+
+	clk_reparent(clk, new_parent);
+
+	/* CLKSEL clocks follow their parents' rates, divided by a divisor */
+	clk->rate = new_parent->rate;
+
+	if (parent_div > 0)
+		clk->rate /= parent_div;
+
+	pr_debug("clock: set parent of %s to %s (new rate %ld)\n",
+		 clk->name, clk->parent->name, clk->rate);
+
+	return 0;
+}

arch/arm/mach-omap2/clkt_dpll.c

@@ -0,0 +1,386 @@
+/*
+ * OMAP2/3/4 DPLL clock functions
+ *
+ * Copyright (C) 2005-2008 Texas Instruments, Inc.
+ * Copyright (C) 2004-2010 Nokia Corporation
+ *
+ * Contacts:
+ * Richard Woodruff <r-woodruff2@ti.com>
+ * Paul Walmsley
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#undef DEBUG
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+
+#include <asm/div64.h>
+
+#include <plat/clock.h>
+
+#include "clock.h"
+#include "cm.h"
+#include "cm-regbits-24xx.h"
+#include "cm-regbits-34xx.h"
+
+/* DPLL rate rounding: minimum DPLL multiplier, divider values */
+#define DPLL_MIN_MULTIPLIER		1
+#define DPLL_MIN_DIVIDER		1
+
+/* Possible error results from _dpll_test_mult */
+#define DPLL_MULT_UNDERFLOW		-1
+
+/*
+ * Scale factor to mitigate roundoff errors in DPLL rate rounding.
+ * The higher the scale factor, the greater the risk of arithmetic overflow,
+ * but the closer the rounded rate to the target rate.  DPLL_SCALE_FACTOR
+ * must be a power of DPLL_SCALE_BASE.
+ */
+#define DPLL_SCALE_FACTOR		64
+#define DPLL_SCALE_BASE			2
+#define DPLL_ROUNDING_VAL		((DPLL_SCALE_BASE / 2) * \
+					 (DPLL_SCALE_FACTOR / DPLL_SCALE_BASE))
+
+/* DPLL valid Fint frequency band limits - from 34xx TRM Section 4.7.6.2 */
+#define DPLL_FINT_BAND1_MIN		750000
+#define DPLL_FINT_BAND1_MAX		2100000
+#define DPLL_FINT_BAND2_MIN		7500000
+#define DPLL_FINT_BAND2_MAX		21000000
+
+/* _dpll_test_fint() return codes */
+#define DPLL_FINT_UNDERFLOW		-1
+#define DPLL_FINT_INVALID		-2
+
+/* Private functions */
+
+/*
+ * _dpll_test_fint - test whether an Fint value is valid for the DPLL
+ * @clk: DPLL struct clk to test
+ * @n: divider value (N) to test
+ *
+ * Tests whether a particular divider @n will result in a valid DPLL
+ * internal clock frequency Fint. See the 34xx TRM 4.7.6.2 "DPLL Jitter
+ * Correction".  Returns 0 if OK, -1 if the enclosing loop can terminate
+ * (assuming that it is counting N upwards), or -2 if the enclosing loop
+ * should skip to the next iteration (again assuming N is increasing).
+ */
+static int _dpll_test_fint(struct clk *clk, u8 n)
+{
+	struct dpll_data *dd;
+	long fint;
+	int ret = 0;
+
+	dd = clk->dpll_data;
+
+	/* DPLL divider must result in a valid jitter correction val */
+	fint = clk->parent->rate / (n + 1);
+	if (fint < DPLL_FINT_BAND1_MIN) {
+
+		pr_debug("rejecting n=%d due to Fint failure, "
+			 "lowering max_divider\n", n);
+		dd->max_divider = n;
+		ret = DPLL_FINT_UNDERFLOW;
+
+	} else if (fint > DPLL_FINT_BAND1_MAX &&
+		   fint < DPLL_FINT_BAND2_MIN) {
+
+		pr_debug("rejecting n=%d due to Fint failure\n", n);
+		ret = DPLL_FINT_INVALID;
+
+	} else if (fint > DPLL_FINT_BAND2_MAX) {
+
+		pr_debug("rejecting n=%d due to Fint failure, "
+			 "boosting min_divider\n", n);
+		dd->min_divider = n;
+		ret = DPLL_FINT_INVALID;
+
+	}
+
+	return ret;
+}
+
+static unsigned long _dpll_compute_new_rate(unsigned long parent_rate,
+					    unsigned int m, unsigned int n)
+{
+	unsigned long long num;
+
+	num = (unsigned long long)parent_rate * m;
+	do_div(num, n);
+	return num;
+}
+
+/*
+ * _dpll_test_mult - test a DPLL multiplier value
+ * @m: pointer to the DPLL m (multiplier) value under test
+ * @n: current DPLL n (divider) value under test
+ * @new_rate: pointer to storage for the resulting rounded rate
+ * @target_rate: the desired DPLL rate
+ * @parent_rate: the DPLL's parent clock rate
+ *
+ * This code tests a DPLL multiplier value, ensuring that the
+ * resulting rate will not be higher than the target_rate, and that
+ * the multiplier value itself is valid for the DPLL.  Initially, the
+ * integer pointed to by the m argument should be prescaled by
+ * multiplying by DPLL_SCALE_FACTOR.  The code will replace this with
+ * a non-scaled m upon return.  This non-scaled m will result in a
+ * new_rate as close as possible to target_rate (but not greater than
+ * target_rate) given the current (parent_rate, n, prescaled m)
+ * triple. Returns DPLL_MULT_UNDERFLOW in the event that the
+ * non-scaled m attempted to underflow, which can allow the calling
+ * function to bail out early; or 0 upon success.
+ */
+static int _dpll_test_mult(int *m, int n, unsigned long *new_rate,
+			   unsigned long target_rate,
+			   unsigned long parent_rate)
+{
+	int r = 0, carry = 0;
+
+	/* Unscale m and round if necessary */
+	if (*m % DPLL_SCALE_FACTOR >= DPLL_ROUNDING_VAL)
+		carry = 1;
+	*m = (*m / DPLL_SCALE_FACTOR) + carry;
+
+	/*
+	 * The new rate must be <= the target rate to avoid programming
+	 * a rate that is impossible for the hardware to handle
+	 */
+	*new_rate = _dpll_compute_new_rate(parent_rate, *m, n);
+	if (*new_rate > target_rate) {
+		(*m)--;
+		*new_rate = 0;
+	}
+
+	/* Guard against m underflow */
+	if (*m < DPLL_MIN_MULTIPLIER) {
+		*m = DPLL_MIN_MULTIPLIER;
+		*new_rate = 0;
+		r = DPLL_MULT_UNDERFLOW;
+	}
+
+	if (*new_rate == 0)
+		*new_rate = _dpll_compute_new_rate(parent_rate, *m, n);
+
+	return r;
+}
+
+/* Public functions */
+
+void omap2_init_dpll_parent(struct clk *clk)
+{
+	u32 v;
+	struct dpll_data *dd;
+
+	dd = clk->dpll_data;
+	if (!dd)
+		return;
+
+	/* Return bypass rate if DPLL is bypassed */
+	v = __raw_readl(dd->control_reg);
+	v &= dd->enable_mask;
+	v >>= __ffs(dd->enable_mask);
+
+	/* Reparent in case the dpll is in bypass */
+	if (cpu_is_omap24xx()) {
+		if (v == OMAP2XXX_EN_DPLL_LPBYPASS ||
+		    v == OMAP2XXX_EN_DPLL_FRBYPASS)
+			clk_reparent(clk, dd->clk_bypass);
+	} else if (cpu_is_omap34xx()) {
+		if (v == OMAP3XXX_EN_DPLL_LPBYPASS ||
+		    v == OMAP3XXX_EN_DPLL_FRBYPASS)
+			clk_reparent(clk, dd->clk_bypass);
+	} else if (cpu_is_omap44xx()) {
+		if (v == OMAP4XXX_EN_DPLL_LPBYPASS ||
+		    v == OMAP4XXX_EN_DPLL_FRBYPASS ||
+		    v == OMAP4XXX_EN_DPLL_MNBYPASS)
+			clk_reparent(clk, dd->clk_bypass);
+	}
+	return;
+}
+
+/**
+ * omap2_get_dpll_rate - returns the current DPLL CLKOUT rate
+ * @clk: struct clk * of a DPLL
+ *
+ * DPLLs can be locked or bypassed - basically, enabled or disabled.
+ * When locked, the DPLL output depends on the M and N values.  When
+ * bypassed, on OMAP2xxx, the output rate is either the 32KiHz clock
+ * or sys_clk.  Bypass rates on OMAP3 depend on the DPLL: DPLLs 1 and
+ * 2 are bypassed with dpll1_fclk and dpll2_fclk respectively
+ * (generated by DPLL3), while DPLL 3, 4, and 5 bypass rates are sys_clk.
+ * Returns the current DPLL CLKOUT rate (*not* CLKOUTX2) if the DPLL is
+ * locked, or the appropriate bypass rate if the DPLL is bypassed, or 0
+ * if the clock @clk is not a DPLL.
+ */
+u32 omap2_get_dpll_rate(struct clk *clk)
+{
+	long long dpll_clk;
+	u32 dpll_mult, dpll_div, v;
+	struct dpll_data *dd;
+
+	dd = clk->dpll_data;
+	if (!dd)
+		return 0;
+
+	/* Return bypass rate if DPLL is bypassed */
+	v = __raw_readl(dd->control_reg);
+	v &= dd->enable_mask;
+	v >>= __ffs(dd->enable_mask);
+
+	if (cpu_is_omap24xx()) {
+		if (v == OMAP2XXX_EN_DPLL_LPBYPASS ||
+		    v == OMAP2XXX_EN_DPLL_FRBYPASS)
+			return dd->clk_bypass->rate;
+	} else if (cpu_is_omap34xx()) {
+		if (v == OMAP3XXX_EN_DPLL_LPBYPASS ||
+		    v == OMAP3XXX_EN_DPLL_FRBYPASS)
+			return dd->clk_bypass->rate;
+	} else if (cpu_is_omap44xx()) {
+		if (v == OMAP4XXX_EN_DPLL_LPBYPASS ||
+		    v == OMAP4XXX_EN_DPLL_FRBYPASS ||
+		    v == OMAP4XXX_EN_DPLL_MNBYPASS)
+			return dd->clk_bypass->rate;
+	}
+
+	v = __raw_readl(dd->mult_div1_reg);
+	dpll_mult = v & dd->mult_mask;
+	dpll_mult >>= __ffs(dd->mult_mask);
+	dpll_div = v & dd->div1_mask;
+	dpll_div >>= __ffs(dd->div1_mask);
+
+	dpll_clk = (long long)dd->clk_ref->rate * dpll_mult;
+	do_div(dpll_clk, dpll_div + 1);
+
+	return dpll_clk;
+}
+
+/* DPLL rate rounding code */
+
+/**
+ * omap2_dpll_set_rate_tolerance: set the error tolerance during rate rounding
+ * @clk: struct clk * of the DPLL
+ * @tolerance: maximum rate error tolerance
+ *
+ * Set the maximum DPLL rate error tolerance for the rate rounding
+ * algorithm.  The rate tolerance is an attempt to balance DPLL power
+ * saving (the least divider value "n") vs. rate fidelity (the least
+ * difference between the desired DPLL target rate and the rounded
+ * rate out of the algorithm).  So, increasing the tolerance is likely
+ * to decrease DPLL power consumption and increase DPLL rate error.
+ * Returns -EINVAL if provided a null clock ptr or a clk that is not a
+ * DPLL; or 0 upon success.
+ */
+int omap2_dpll_set_rate_tolerance(struct clk *clk, unsigned int tolerance)
+{
+	if (!clk || !clk->dpll_data)
+		return -EINVAL;
+
+	clk->dpll_data->rate_tolerance = tolerance;
+
+	return 0;
+}
+
+/**
+ * omap2_dpll_round_rate - round a target rate for an OMAP DPLL
+ * @clk: struct clk * for a DPLL
+ * @target_rate: desired DPLL clock rate
+ *
+ * Given a DPLL, a desired target rate, and a rate tolerance, round
+ * the target rate to a possible, programmable rate for this DPLL.
+ * Rate tolerance is assumed to be set by the caller before this
+ * function is called.  Attempts to select the minimum possible n
+ * within the tolerance to reduce power consumption.  Stores the
+ * computed (m, n) in the DPLL's dpll_data structure so set_rate()
+ * will not need to call this (expensive) function again.  Returns ~0
+ * if the target rate cannot be rounded, either because the rate is
+ * too low or because the rate tolerance is set too tightly; or the
+ * rounded rate upon success.
+ */
+long omap2_dpll_round_rate(struct clk *clk, unsigned long target_rate)
+{
+	int m, n, r, e, scaled_max_m;
+	unsigned long scaled_rt_rp, new_rate;
+	int min_e = -1, min_e_m = -1, min_e_n = -1;
+	struct dpll_data *dd;
+
+	if (!clk || !clk->dpll_data)
+		return ~0;
+
+	dd = clk->dpll_data;
+
+	pr_debug("clock: starting DPLL round_rate for clock %s, target rate "
+		 "%ld\n", clk->name, target_rate);
+
+	scaled_rt_rp = target_rate / (dd->clk_ref->rate / DPLL_SCALE_FACTOR);
+	scaled_max_m = dd->max_multiplier * DPLL_SCALE_FACTOR;
+
+	dd->last_rounded_rate = 0;
+
+	for (n = dd->min_divider; n <= dd->max_divider; n++) {
+
+		/* Is the (input clk, divider) pair valid for the DPLL? */
+		r = _dpll_test_fint(clk, n);
+		if (r == DPLL_FINT_UNDERFLOW)
+			break;
+		else if (r == DPLL_FINT_INVALID)
+			continue;
+
+		/* Compute the scaled DPLL multiplier, based on the divider */
+		m = scaled_rt_rp * n;
+
+		/*
+		 * Since we're counting n up, a m overflow means we
+		 * can bail out completely (since as n increases in
+		 * the next iteration, there's no way that m can
+		 * increase beyond the current m)
+		 */
+		if (m > scaled_max_m)
+			break;
+
+		r = _dpll_test_mult(&m, n, &new_rate, target_rate,
+				    dd->clk_ref->rate);
+
+		/* m can't be set low enough for this n - try with a larger n */
+		if (r == DPLL_MULT_UNDERFLOW)
+			continue;
+
+		e = target_rate - new_rate;
+		pr_debug("clock: n = %d: m = %d: rate error is %d "
+			 "(new_rate = %ld)\n", n, m, e, new_rate);
+
+		if (min_e == -1 ||
+		    min_e >= (int)(abs(e) - dd->rate_tolerance)) {
+			min_e = e;
+			min_e_m = m;
+			min_e_n = n;
+
+			pr_debug("clock: found new least error %d\n", min_e);
+
+			/* We found good settings -- bail out now */
+			if (min_e <= dd->rate_tolerance)
+				break;
+		}
+	}
+
+	if (min_e < 0) {
+		pr_debug("clock: error: target rate or tolerance too low\n");
+		return ~0;
+	}
+
+	dd->last_rounded_m = min_e_m;
+	dd->last_rounded_n = min_e_n;
+	dd->last_rounded_rate = _dpll_compute_new_rate(dd->clk_ref->rate,
+						       min_e_m,  min_e_n);
+
+	pr_debug("clock: final least error: e = %d, m = %d, n = %d\n",
+		 min_e, min_e_m, min_e_n);
+	pr_debug("clock: final rate: %ld  (target rate: %ld)\n",
+		 dd->last_rounded_rate, target_rate);
+
+	return dd->last_rounded_rate;
+}
+

arch/arm/mach-omap2/clock.c

@@ -28,10 +28,7 @@
 #include <plat/clockdomain.h>
 #include <plat/cpu.h>
 #include <plat/prcm.h>
-#include <asm/div64.h>
 
-#include <plat/sdrc.h>
-#include "sdrc.h"
 #include "clock.h"
 #include "prm.h"
 #include "prm-regbits-24xx.h"
@@ -39,81 +36,66 @@
 #include "cm-regbits-24xx.h"
 #include "cm-regbits-34xx.h"
 
-/* DPLL rate rounding: minimum DPLL multiplier, divider values */
-#define DPLL_MIN_MULTIPLIER		1
-#define DPLL_MIN_DIVIDER		1
-
-/* Possible error results from _dpll_test_mult */
-#define DPLL_MULT_UNDERFLOW		-1
-
-/*
- * Scale factor to mitigate roundoff errors in DPLL rate rounding.
- * The higher the scale factor, the greater the risk of arithmetic overflow,
- * but the closer the rounded rate to the target rate.  DPLL_SCALE_FACTOR
- * must be a power of DPLL_SCALE_BASE.
- */
-#define DPLL_SCALE_FACTOR		64
-#define DPLL_SCALE_BASE			2
-#define DPLL_ROUNDING_VAL		((DPLL_SCALE_BASE / 2) * \
-					 (DPLL_SCALE_FACTOR / DPLL_SCALE_BASE))
-
-/* DPLL valid Fint frequency band limits - from 34xx TRM Section 4.7.6.2 */
-#define DPLL_FINT_BAND1_MIN		750000
-#define DPLL_FINT_BAND1_MAX		2100000
-#define DPLL_FINT_BAND2_MIN		7500000
-#define DPLL_FINT_BAND2_MAX		21000000
-
-/* _dpll_test_fint() return codes */
-#define DPLL_FINT_UNDERFLOW		-1
-#define DPLL_FINT_INVALID		-2
-
 u8 cpu_mask;
 
 /*-------------------------------------------------------------------------
  * OMAP2/3/4 specific clock functions
  *-------------------------------------------------------------------------*/
 
-void omap2_init_dpll_parent(struct clk *clk)
+/* Private functions */
+
+/**
+ * _omap2_module_wait_ready - wait for an OMAP module to leave IDLE
+ * @clk: struct clk * belonging to the module
+ *
+ * If the necessary clocks for the OMAP hardware IP block that
+ * corresponds to clock @clk are enabled, then wait for the module to
+ * indicate readiness (i.e., to leave IDLE).  This code does not
+ * belong in the clock code and will be moved in the medium term to
+ * module-dependent code.  No return value.
+ */
+static void _omap2_module_wait_ready(struct clk *clk)
 {
-	u32 v;
-	struct dpll_data *dd;
+	void __iomem *companion_reg, *idlest_reg;
+	u8 other_bit, idlest_bit;
 
-	dd = clk->dpll_data;
-	if (!dd)
-		return;
+	/* Not all modules have multiple clocks that their IDLEST depends on */
+	if (clk->ops->find_companion) {
+		clk->ops->find_companion(clk, &companion_reg, &other_bit);
+		if (!(__raw_readl(companion_reg) & (1 << other_bit)))
+			return;
+	}
 
-	/* Return bypass rate if DPLL is bypassed */
-	v = __raw_readl(dd->control_reg);
-	v &= dd->enable_mask;
-	v >>= __ffs(dd->enable_mask);
+	clk->ops->find_idlest(clk, &idlest_reg, &idlest_bit);
 
-	/* Reparent in case the dpll is in bypass */
-	if (cpu_is_omap24xx()) {
-		if (v == OMAP2XXX_EN_DPLL_LPBYPASS ||
-		    v == OMAP2XXX_EN_DPLL_FRBYPASS)
-			clk_reparent(clk, dd->clk_bypass);
-	} else if (cpu_is_omap34xx()) {
-		if (v == OMAP3XXX_EN_DPLL_LPBYPASS ||
-		    v == OMAP3XXX_EN_DPLL_FRBYPASS)
-			clk_reparent(clk, dd->clk_bypass);
-	} else if (cpu_is_omap44xx()) {
-		if (v == OMAP4XXX_EN_DPLL_LPBYPASS ||
-		    v == OMAP4XXX_EN_DPLL_FRBYPASS ||
-		    v == OMAP4XXX_EN_DPLL_MNBYPASS)
-			clk_reparent(clk, dd->clk_bypass);
-	}
-	return;
+	omap2_cm_wait_idlest(idlest_reg, (1 << idlest_bit), clk->name);
 }
 
+/* Enables clock without considering parent dependencies or use count
+ * REVISIT: Maybe change this to use clk->enable like on omap1?
+ */
+static int _omap2_clk_enable(struct clk *clk)
+{
+	return clk->ops->enable(clk);
+}
+
+/* Disables clock without considering parent dependencies or use count */
+static void _omap2_clk_disable(struct clk *clk)
+{
+	clk->ops->disable(clk);
+}
+
+/* Public functions */
+
 /**
- * _omap2xxx_clk_commit - commit clock parent/rate changes in hardware
+ * omap2xxx_clk_commit - commit clock parent/rate changes in hardware
  * @clk: struct clk *
  *
  * If @clk has the DELAYED_APP flag set, meaning that parent/rate changes
  * don't take effect until the VALID_CONFIG bit is written, write the
  * VALID_CONFIG bit and wait for the write to complete.  No return value.
  */
-static void _omap2xxx_clk_commit(struct clk *clk)
+void omap2xxx_clk_commit(struct clk *clk)
 {
 	if (!cpu_is_omap24xx())
 		return;
@@ -127,52 +109,6 @@ static void _omap2xxx_clk_commit(struct clk *clk)
 	prm_read_mod_reg(OMAP24XX_GR_MOD, OMAP2_PRCM_CLKCFG_CTRL_OFFSET);
 }
 
-/*
- * _dpll_test_fint - test whether an Fint value is valid for the DPLL
- * @clk: DPLL struct clk to test
- * @n: divider value (N) to test
- *
- * Tests whether a particular divider @n will result in a valid DPLL
- * internal clock frequency Fint. See the 34xx TRM 4.7.6.2 "DPLL Jitter
- * Correction".  Returns 0 if OK, -1 if the enclosing loop can terminate
- * (assuming that it is counting N upwards), or -2 if the enclosing loop
- * should skip to the next iteration (again assuming N is increasing).
- */
-static int _dpll_test_fint(struct clk *clk, u8 n)
-{
-	struct dpll_data *dd;
-	long fint;
-	int ret = 0;
-
-	dd = clk->dpll_data;
-
-	/* DPLL divider must result in a valid jitter correction val */
-	fint = clk->parent->rate / (n + 1);
-	if (fint < DPLL_FINT_BAND1_MIN) {
-
-		pr_debug("rejecting n=%d due to Fint failure, "
-			 "lowering max_divider\n", n);
-		dd->max_divider = n;
-		ret = DPLL_FINT_UNDERFLOW;
-
-	} else if (fint > DPLL_FINT_BAND1_MAX &&
-		   fint < DPLL_FINT_BAND2_MIN) {
-
-		pr_debug("rejecting n=%d due to Fint failure\n", n);
-		ret = DPLL_FINT_INVALID;
-
-	} else if (fint > DPLL_FINT_BAND2_MAX) {
-
-		pr_debug("rejecting n=%d due to Fint failure, "
-			 "boosting min_divider\n", n);
-		dd->min_divider = n;
-		ret = DPLL_FINT_INVALID;
-
-	}
-
-	return ret;
-}
-
 /**
  * omap2_init_clk_clkdm - look up a clockdomain name, store pointer in clk
  * @clk: OMAP clock struct ptr to use
@@ -181,7 +117,6 @@ static int _dpll_test_fint(struct clk *clk, u8 n)
  * clockdomain pointer, and save it into the struct clk.  Intended to be
  * called during clk_register().  No return value.
  */
-#ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once clkdm f/w is in place */
 void omap2_init_clk_clkdm(struct clk *clk)
 {
 	struct clockdomain *clkdm;
@@ -199,117 +134,6 @@ void omap2_init_clk_clkdm(struct clk *clk)
 			 "clkdm %s\n", clk->name, clk->clkdm_name);
 	}
 }
-#endif
-
-/**
- * omap2_init_clksel_parent - set a clksel clk's parent field from the hardware
- * @clk: OMAP clock struct ptr to use
- *
- * Given a pointer to a source-selectable struct clk, read the hardware
- * register and determine what its parent is currently set to.  Update the
- * clk->parent field with the appropriate clk ptr.
- */
-void omap2_init_clksel_parent(struct clk *clk)
-{
-	const struct clksel *clks;
-	const struct clksel_rate *clkr;
-	u32 r, found = 0;
-
-	if (!clk->clksel)
-		return;
-
-	r = __raw_readl(clk->clksel_reg) & clk->clksel_mask;
-	r >>= __ffs(clk->clksel_mask);
-
-	for (clks = clk->clksel; clks->parent && !found; clks++) {
-		for (clkr = clks->rates; clkr->div && !found; clkr++) {
-			if ((clkr->flags & cpu_mask) && (clkr->val == r)) {
-				if (clk->parent != clks->parent) {
-					pr_debug("clock: inited %s parent "
-						 "to %s (was %s)\n",
-						 clk->name, clks->parent->name,
-						 ((clk->parent) ?
-						  clk->parent->name : "NULL"));
-					clk_reparent(clk, clks->parent);
-				};
-				found = 1;
-			}
-		}
-	}
-
-	if (!found)
-		printk(KERN_ERR "clock: init parent: could not find "
-		       "regval %0x for clock %s\n", r,  clk->name);
-
-	return;
-}
-
-/**
- * omap2_get_dpll_rate - returns the current DPLL CLKOUT rate
- * @clk: struct clk * of a DPLL
- *
- * DPLLs can be locked or bypassed - basically, enabled or disabled.
- * When locked, the DPLL output depends on the M and N values.  When
- * bypassed, on OMAP2xxx, the output rate is either the 32KiHz clock
- * or sys_clk.  Bypass rates on OMAP3 depend on the DPLL: DPLLs 1 and
- * 2 are bypassed with dpll1_fclk and dpll2_fclk respectively
- * (generated by DPLL3), while DPLL 3, 4, and 5 bypass rates are sys_clk.
- * Returns the current DPLL CLKOUT rate (*not* CLKOUTX2) if the DPLL is
- * locked, or the appropriate bypass rate if the DPLL is bypassed, or 0
- * if the clock @clk is not a DPLL.
- */
-u32 omap2_get_dpll_rate(struct clk *clk)
-{
-	long long dpll_clk;
-	u32 dpll_mult, dpll_div, v;
-	struct dpll_data *dd;
-
-	dd = clk->dpll_data;
-	if (!dd)
-		return 0;
-
-	/* Return bypass rate if DPLL is bypassed */
-	v = __raw_readl(dd->control_reg);
-	v &= dd->enable_mask;
-	v >>= __ffs(dd->enable_mask);
-
-	if (cpu_is_omap24xx()) {
-		if (v == OMAP2XXX_EN_DPLL_LPBYPASS ||
-		    v == OMAP2XXX_EN_DPLL_FRBYPASS)
-			return dd->clk_bypass->rate;
-	} else if (cpu_is_omap34xx()) {
-		if (v == OMAP3XXX_EN_DPLL_LPBYPASS ||
-		    v == OMAP3XXX_EN_DPLL_FRBYPASS)
-			return dd->clk_bypass->rate;
-	} else if (cpu_is_omap44xx()) {
-		if (v == OMAP4XXX_EN_DPLL_LPBYPASS ||
-		    v == OMAP4XXX_EN_DPLL_FRBYPASS ||
-		    v == OMAP4XXX_EN_DPLL_MNBYPASS)
-			return dd->clk_bypass->rate;
-	}
-
-	v = __raw_readl(dd->mult_div1_reg);
-	dpll_mult = v & dd->mult_mask;
-	dpll_mult >>= __ffs(dd->mult_mask);
-	dpll_div = v & dd->div1_mask;
-	dpll_div >>= __ffs(dd->div1_mask);
-
-	dpll_clk = (long long)dd->clk_ref->rate * dpll_mult;
-	do_div(dpll_clk, dpll_div + 1);
-
-	return dpll_clk;
-}
-
-/*
- * Used for clocks that have the same value as the parent clock,
- * divided by some factor
- */
-unsigned long omap2_fixed_divisor_recalc(struct clk *clk)
-{
-	WARN_ON(!clk->fixed_div);
-
-	return clk->parent->rate / clk->fixed_div;
-}
 
 /**
  * omap2_clk_dflt_find_companion - find companion clock to @clk
@@ -370,33 +194,6 @@ void omap2_clk_dflt_find_idlest(struct clk *clk, void __iomem **idlest_reg,
 	*idlest_bit = clk->enable_bit;
 }
 
-/**
- * omap2_module_wait_ready - wait for an OMAP module to leave IDLE
- * @clk: struct clk * belonging to the module
- *
- * If the necessary clocks for the OMAP hardware IP block that
- * corresponds to clock @clk are enabled, then wait for the module to
- * indicate readiness (i.e., to leave IDLE).  This code does not
- * belong in the clock code and will be moved in the medium term to
- * module-dependent code.  No return value.
- */
-static void omap2_module_wait_ready(struct clk *clk)
-{
-	void __iomem *companion_reg, *idlest_reg;
-	u8 other_bit, idlest_bit;
-
-	/* Not all modules have multiple clocks that their IDLEST depends on */
-	if (clk->ops->find_companion) {
-		clk->ops->find_companion(clk, &companion_reg, &other_bit);
-		if (!(__raw_readl(companion_reg) & (1 << other_bit)))
-			return;
-	}
-
-	clk->ops->find_idlest(clk, &idlest_reg, &idlest_bit);
-
-	omap2_cm_wait_idlest(idlest_reg, (1 << idlest_bit), clk->name);
-}
-
 int omap2_dflt_clk_enable(struct clk *clk)
 {
 	u32 v;
@@ -416,7 +213,7 @@ int omap2_dflt_clk_enable(struct clk *clk)
 	v = __raw_readl(clk->enable_reg); /* OCP barrier */
 
 	if (clk->ops->find_idlest)
-		omap2_module_wait_ready(clk);
+		_omap2_module_wait_ready(clk);
 
 	return 0;
 }
@@ -456,30 +253,14 @@ const struct clkops clkops_omap2_dflt = {
 	.disable	= omap2_dflt_clk_disable,
 };
 
-/* Enables clock without considering parent dependencies or use count
- * REVISIT: Maybe change this to use clk->enable like on omap1?
- */
-static int _omap2_clk_enable(struct clk *clk)
-{
-	return clk->ops->enable(clk);
-}
-
-/* Disables clock without considering parent dependencies or use count */
-static void _omap2_clk_disable(struct clk *clk)
-{
-	clk->ops->disable(clk);
-}
-
 void omap2_clk_disable(struct clk *clk)
 {
 	if (clk->usecount > 0 && !(--clk->usecount)) {
 		_omap2_clk_disable(clk);
 		if (clk->parent)
 			omap2_clk_disable(clk->parent);
-#ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once clkdm f/w is in place */
 		if (clk->clkdm)
 			omap2_clkdm_clk_disable(clk->clkdm, clk);
-#endif
 
 	}
 }
@@ -489,10 +270,8 @@ int omap2_clk_enable(struct clk *clk)
 	int ret = 0;
 
 	if (clk->usecount++ == 0) {
-#ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once clkdm f/w is in place */
 		if (clk->clkdm)
 			omap2_clkdm_clk_enable(clk->clkdm, clk);
-#endif
 
 		if (clk->parent) {
 			ret = omap2_clk_enable(clk->parent);
@@ -511,282 +290,12 @@ int omap2_clk_enable(struct clk *clk)
 	return ret;
 
 err:
-#ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once clkdm f/w is in place */
 	if (clk->clkdm)
 		omap2_clkdm_clk_disable(clk->clkdm, clk);
-#endif
 	clk->usecount--;
 	return ret;
 }
 
-/*
- * Used for clocks that are part of CLKSEL_xyz governed clocks.
- * REVISIT: Maybe change to use clk->enable() functions like on omap1?
- */
-unsigned long omap2_clksel_recalc(struct clk *clk)
-{
-	unsigned long rate;
-	u32 div = 0;
-
-	pr_debug("clock: recalc'ing clksel clk %s\n", clk->name);
-
-	div = omap2_clksel_get_divisor(clk);
-	if (div == 0)
-		return clk->rate;
-
-	rate = clk->parent->rate / div;
-
-	pr_debug("clock: new clock rate is %ld (div %d)\n", rate, div);
-
-	return rate;
-}
-
-/**
- * omap2_get_clksel_by_parent - return clksel struct for a given clk & parent
- * @clk: OMAP struct clk ptr to inspect
- * @src_clk: OMAP struct clk ptr of the parent clk to search for
- *
- * Scan the struct clksel array associated with the clock to find
- * the element associated with the supplied parent clock address.
- * Returns a pointer to the struct clksel on success or NULL on error.
- */
-static const struct clksel *omap2_get_clksel_by_parent(struct clk *clk,
-						       struct clk *src_clk)
-{
-	const struct clksel *clks;
-
-	if (!clk->clksel)
-		return NULL;
-
-	for (clks = clk->clksel; clks->parent; clks++) {
-		if (clks->parent == src_clk)
-			break; /* Found the requested parent */
-	}
-
-	if (!clks->parent) {
-		printk(KERN_ERR "clock: Could not find parent clock %s in "
-		       "clksel array of clock %s\n", src_clk->name,
-		       clk->name);
-		return NULL;
-	}
-
-	return clks;
-}
-
-/**
- * omap2_clksel_round_rate_div - find divisor for the given clock and rate
- * @clk: OMAP struct clk to use
- * @target_rate: desired clock rate
- * @new_div: ptr to where we should store the divisor
- *
- * Finds 'best' divider value in an array based on the source and target
- * rates.  The divider array must be sorted with smallest divider first.
- * Note that this will not work for clocks which are part of CONFIG_PARTICIPANT,
- * they are only settable as part of virtual_prcm set.
- *
- * Returns the rounded clock rate or returns 0xffffffff on error.
- */
-u32 omap2_clksel_round_rate_div(struct clk *clk, unsigned long target_rate,
-				u32 *new_div)
-{
-	unsigned long test_rate;
-	const struct clksel *clks;
-	const struct clksel_rate *clkr;
-	u32 last_div = 0;
-
-	pr_debug("clock: clksel_round_rate_div: %s target_rate %ld\n",
-		 clk->name, target_rate);
-
-	*new_div = 1;
-
-	clks = omap2_get_clksel_by_parent(clk, clk->parent);
-	if (!clks)
-		return ~0;
-
-	for (clkr = clks->rates; clkr->div; clkr++) {
-		if (!(clkr->flags & cpu_mask))
-		    continue;
-
-		/* Sanity check */
-		if (clkr->div <= last_div)
-			pr_err("clock: clksel_rate table not sorted "
-			       "for clock %s", clk->name);
-
-		last_div = clkr->div;
-
-		test_rate = clk->parent->rate / clkr->div;
-
-		if (test_rate <= target_rate)
-			break; /* found it */
-	}
-
-	if (!clkr->div) {
-		pr_err("clock: Could not find divisor for target "
-		       "rate %ld for clock %s parent %s\n", target_rate,
-		       clk->name, clk->parent->name);
-		return ~0;
-	}
-
-	*new_div = clkr->div;
-
-	pr_debug("clock: new_div = %d, new_rate = %ld\n", *new_div,
-		 (clk->parent->rate / clkr->div));
-
-	return (clk->parent->rate / clkr->div);
-}
-
-/**
- * omap2_clksel_round_rate - find rounded rate for the given clock and rate
- * @clk: OMAP struct clk to use
- * @target_rate: desired clock rate
- *
- * Compatibility wrapper for OMAP clock framework
- * Finds best target rate based on the source clock and possible dividers.
- * rates. The divider array must be sorted with smallest divider first.
- * Note that this will not work for clocks which are part of CONFIG_PARTICIPANT,
- * they are only settable as part of virtual_prcm set.
- *
- * Returns the rounded clock rate or returns 0xffffffff on error.
- */
-long omap2_clksel_round_rate(struct clk *clk, unsigned long target_rate)
-{
-	u32 new_div;
-
-	return omap2_clksel_round_rate_div(clk, target_rate, &new_div);
-}
-
-
-/* Given a clock and a rate apply a clock specific rounding function */
-long omap2_clk_round_rate(struct clk *clk, unsigned long rate)
-{
-	if (clk->round_rate)
-		return clk->round_rate(clk, rate);
-
-	if (clk->flags & RATE_FIXED)
-		printk(KERN_ERR "clock: generic omap2_clk_round_rate called "
-		       "on fixed-rate clock %s\n", clk->name);
-
-	return clk->rate;
-}
-
-/**
- * omap2_clksel_to_divisor() - turn clksel field value into integer divider
- * @clk: OMAP struct clk to use
- * @field_val: register field value to find
- *
- * Given a struct clk of a rate-selectable clksel clock, and a register field
- * value to search for, find the corresponding clock divisor.  The register
- * field value should be pre-masked and shifted down so the LSB is at bit 0
- * before calling.  Returns 0 on error
- */
-u32 omap2_clksel_to_divisor(struct clk *clk, u32 field_val)
-{
-	const struct clksel *clks;
-	const struct clksel_rate *clkr;
-
-	clks = omap2_get_clksel_by_parent(clk, clk->parent);
-	if (!clks)
-		return 0;
-
-	for (clkr = clks->rates; clkr->div; clkr++) {
-		if ((clkr->flags & cpu_mask) && (clkr->val == field_val))
-			break;
-	}
-
-	if (!clkr->div) {
-		printk(KERN_ERR "clock: Could not find fieldval %d for "
-		       "clock %s parent %s\n", field_val, clk->name,
-		       clk->parent->name);
-		return 0;
-	}
-
-	return clkr->div;
-}
-
-/**
- * omap2_divisor_to_clksel() - turn clksel integer divisor into a field value
- * @clk: OMAP struct clk to use
- * @div: integer divisor to search for
- *
- * Given a struct clk of a rate-selectable clksel clock, and a clock divisor,
- * find the corresponding register field value.  The return register value is
- * the value before left-shifting.  Returns ~0 on error
- */
-u32 omap2_divisor_to_clksel(struct clk *clk, u32 div)
-{
-	const struct clksel *clks;
-	const struct clksel_rate *clkr;
-
-	/* should never happen */
-	WARN_ON(div == 0);
-
-	clks = omap2_get_clksel_by_parent(clk, clk->parent);
-	if (!clks)
-		return ~0;
-
-	for (clkr = clks->rates; clkr->div; clkr++) {
-		if ((clkr->flags & cpu_mask) && (clkr->div == div))
-			break;
-	}
-
-	if (!clkr->div) {
-		printk(KERN_ERR "clock: Could not find divisor %d for "
-		       "clock %s parent %s\n", div, clk->name,
-		       clk->parent->name);
-		return ~0;
-	}
-
-	return clkr->val;
-}
-
-/**
- * omap2_clksel_get_divisor - get current divider applied to parent clock.
- * @clk: OMAP struct clk to use.
- *
- * Returns the integer divisor upon success or 0 on error.
- */
-u32 omap2_clksel_get_divisor(struct clk *clk)
-{
-	u32 v;
-
-	if (!clk->clksel_mask)
-		return 0;
-
-	v = __raw_readl(clk->clksel_reg) & clk->clksel_mask;
-	v >>= __ffs(clk->clksel_mask);
-
-	return omap2_clksel_to_divisor(clk, v);
-}
-
-int omap2_clksel_set_rate(struct clk *clk, unsigned long rate)
-{
-	u32 v, field_val, validrate, new_div = 0;
-
-	if (!clk->clksel_mask)
-		return -EINVAL;
-
-	validrate = omap2_clksel_round_rate_div(clk, rate, &new_div);
-	if (validrate != rate)
-		return -EINVAL;
-
-	field_val = omap2_divisor_to_clksel(clk, new_div);
-	if (field_val == ~0)
-		return -EINVAL;
-
-	v = __raw_readl(clk->clksel_reg);
-	v &= ~clk->clksel_mask;
-	v |= field_val << __ffs(clk->clksel_mask);
-	__raw_writel(v, clk->clksel_reg);
-	v = __raw_readl(clk->clksel_reg); /* OCP barrier */
-
-	clk->rate = clk->parent->rate / new_div;
-
-	_omap2xxx_clk_commit(clk);
-
-	return 0;
-}
-
-
 /* Set the clock rate for a clock source */
 int omap2_clk_set_rate(struct clk *clk, unsigned long rate)
 {
@@ -806,265 +315,15 @@ int omap2_clk_set_rate(struct clk *clk, unsigned long rate)
 	return ret;
 }
 
-/*
- * Converts encoded control register address into a full address
- * On error, the return value (parent_div) will be 0.
- */
-static u32 _omap2_clksel_get_src_field(struct clk *src_clk, struct clk *clk,
-				       u32 *field_val)
-{
-	const struct clksel *clks;
-	const struct clksel_rate *clkr;
-
-	clks = omap2_get_clksel_by_parent(clk, src_clk);
-	if (!clks)
-		return 0;
-
-	for (clkr = clks->rates; clkr->div; clkr++) {
-		if (clkr->flags & cpu_mask && clkr->flags & DEFAULT_RATE)
-			break; /* Found the default rate for this platform */
-	}
-
-	if (!clkr->div) {
-		printk(KERN_ERR "clock: Could not find default rate for "
-		       "clock %s parent %s\n", clk->name,
-		       src_clk->parent->name);
-		return 0;
-	}
-
-	/* Should never happen.  Add a clksel mask to the struct clk. */
-	WARN_ON(clk->clksel_mask == 0);
-
-	*field_val = clkr->val;
-
-	return clkr->div;
-}
-
 int omap2_clk_set_parent(struct clk *clk, struct clk *new_parent)
 {
-	u32 field_val, v, parent_div;
-
 	if (clk->flags & CONFIG_PARTICIPANT)
 		return -EINVAL;
 
 	if (!clk->clksel)
 		return -EINVAL;
 
-	parent_div = _omap2_clksel_get_src_field(new_parent, clk, &field_val);
-	if (!parent_div)
-		return -EINVAL;
-
-	/* Set new source value (previous dividers if any in effect) */
-	v = __raw_readl(clk->clksel_reg);
-	v &= ~clk->clksel_mask;
-	v |= field_val << __ffs(clk->clksel_mask);
-	__raw_writel(v, clk->clksel_reg);
-	v = __raw_readl(clk->clksel_reg);    /* OCP barrier */
-
-	_omap2xxx_clk_commit(clk);
-
-	clk_reparent(clk, new_parent);
-
-	/* CLKSEL clocks follow their parents' rates, divided by a divisor */
-	clk->rate = new_parent->rate;
-
-	if (parent_div > 0)
-		clk->rate /= parent_div;
-
-	pr_debug("clock: set parent of %s to %s (new rate %ld)\n",
-		 clk->name, clk->parent->name, clk->rate);
-
-	return 0;
-}
-
-/* DPLL rate rounding code */
-
-/**
- * omap2_dpll_set_rate_tolerance: set the error tolerance during rate rounding
- * @clk: struct clk * of the DPLL
- * @tolerance: maximum rate error tolerance
- *
- * Set the maximum DPLL rate error tolerance for the rate rounding
- * algorithm.  The rate tolerance is an attempt to balance DPLL power
- * saving (the least divider value "n") vs. rate fidelity (the least
- * difference between the desired DPLL target rate and the rounded
- * rate out of the algorithm).  So, increasing the tolerance is likely
- * to decrease DPLL power consumption and increase DPLL rate error.
- * Returns -EINVAL if provided a null clock ptr or a clk that is not a
- * DPLL; or 0 upon success.
- */
-int omap2_dpll_set_rate_tolerance(struct clk *clk, unsigned int tolerance)
-{
-	if (!clk || !clk->dpll_data)
-		return -EINVAL;
-
-	clk->dpll_data->rate_tolerance = tolerance;
-
-	return 0;
-}
-
-static unsigned long _dpll_compute_new_rate(unsigned long parent_rate,
-					    unsigned int m, unsigned int n)
-{
-	unsigned long long num;
-
-	num = (unsigned long long)parent_rate * m;
-	do_div(num, n);
-	return num;
-}
-
-/*
- * _dpll_test_mult - test a DPLL multiplier value
- * @m: pointer to the DPLL m (multiplier) value under test
- * @n: current DPLL n (divider) value under test
- * @new_rate: pointer to storage for the resulting rounded rate
- * @target_rate: the desired DPLL rate
- * @parent_rate: the DPLL's parent clock rate
- *
- * This code tests a DPLL multiplier value, ensuring that the
- * resulting rate will not be higher than the target_rate, and that
- * the multiplier value itself is valid for the DPLL.  Initially, the
- * integer pointed to by the m argument should be prescaled by
- * multiplying by DPLL_SCALE_FACTOR.  The code will replace this with
- * a non-scaled m upon return.  This non-scaled m will result in a
- * new_rate as close as possible to target_rate (but not greater than
- * target_rate) given the current (parent_rate, n, prescaled m)
- * triple. Returns DPLL_MULT_UNDERFLOW in the event that the
- * non-scaled m attempted to underflow, which can allow the calling
- * function to bail out early; or 0 upon success.
- */
-static int _dpll_test_mult(int *m, int n, unsigned long *new_rate,
-			   unsigned long target_rate,
-			   unsigned long parent_rate)
-{
-	int r = 0, carry = 0;
-
-	/* Unscale m and round if necessary */
-	if (*m % DPLL_SCALE_FACTOR >= DPLL_ROUNDING_VAL)
-		carry = 1;
-	*m = (*m / DPLL_SCALE_FACTOR) + carry;
-
-	/*
-	 * The new rate must be <= the target rate to avoid programming
-	 * a rate that is impossible for the hardware to handle
-	 */
-	*new_rate = _dpll_compute_new_rate(parent_rate, *m, n);
-	if (*new_rate > target_rate) {
-		(*m)--;
-		*new_rate = 0;
-	}
-
-	/* Guard against m underflow */
-	if (*m < DPLL_MIN_MULTIPLIER) {
-		*m = DPLL_MIN_MULTIPLIER;
-		*new_rate = 0;
-		r = DPLL_MULT_UNDERFLOW;
-	}
-
-	if (*new_rate == 0)
-		*new_rate = _dpll_compute_new_rate(parent_rate, *m, n);
-
-	return r;
-}
-
-/**
- * omap2_dpll_round_rate - round a target rate for an OMAP DPLL
- * @clk: struct clk * for a DPLL
- * @target_rate: desired DPLL clock rate
- *
- * Given a DPLL, a desired target rate, and a rate tolerance, round
- * the target rate to a possible, programmable rate for this DPLL.
- * Rate tolerance is assumed to be set by the caller before this
- * function is called.  Attempts to select the minimum possible n
- * within the tolerance to reduce power consumption.  Stores the
- * computed (m, n) in the DPLL's dpll_data structure so set_rate()
- * will not need to call this (expensive) function again.  Returns ~0
- * if the target rate cannot be rounded, either because the rate is
- * too low or because the rate tolerance is set too tightly; or the
- * rounded rate upon success.
- */
-long omap2_dpll_round_rate(struct clk *clk, unsigned long target_rate)
-{
-	int m, n, r, e, scaled_max_m;
-	unsigned long scaled_rt_rp, new_rate;
-	int min_e = -1, min_e_m = -1, min_e_n = -1;
-	struct dpll_data *dd;
-
-	if (!clk || !clk->dpll_data)
-		return ~0;
-
-	dd = clk->dpll_data;
-
-	pr_debug("clock: starting DPLL round_rate for clock %s, target rate "
-		 "%ld\n", clk->name, target_rate);
-
-	scaled_rt_rp = target_rate / (dd->clk_ref->rate / DPLL_SCALE_FACTOR);
-	scaled_max_m = dd->max_multiplier * DPLL_SCALE_FACTOR;
-
-	dd->last_rounded_rate = 0;
-
-	for (n = dd->min_divider; n <= dd->max_divider; n++) {
-
-		/* Is the (input clk, divider) pair valid for the DPLL? */
-		r = _dpll_test_fint(clk, n);
-		if (r == DPLL_FINT_UNDERFLOW)
-			break;
-		else if (r == DPLL_FINT_INVALID)
-			continue;
-
-		/* Compute the scaled DPLL multiplier, based on the divider */
-		m = scaled_rt_rp * n;
-
-		/*
-		 * Since we're counting n up, a m overflow means we
-		 * can bail out completely (since as n increases in
-		 * the next iteration, there's no way that m can
-		 * increase beyond the current m)
-		 */
-		if (m > scaled_max_m)
-			break;
-
-		r = _dpll_test_mult(&m, n, &new_rate, target_rate,
-				    dd->clk_ref->rate);
-
-		/* m can't be set low enough for this n - try with a larger n */
-		if (r == DPLL_MULT_UNDERFLOW)
-			continue;
-
-		e = target_rate - new_rate;
-		pr_debug("clock: n = %d: m = %d: rate error is %d "
-			 "(new_rate = %ld)\n", n, m, e, new_rate);
-
-		if (min_e == -1 ||
-		    min_e >= (int)(abs(e) - dd->rate_tolerance)) {
-			min_e = e;
-			min_e_m = m;
-			min_e_n = n;
-
-			pr_debug("clock: found new least error %d\n", min_e);
-
-			/* We found good settings -- bail out now */
-			if (min_e <= dd->rate_tolerance)
-				break;
-		}
-	}
-
-	if (min_e < 0) {
-		pr_debug("clock: error: target rate or tolerance too low\n");
-		return ~0;
-	}
-
-	dd->last_rounded_m = min_e_m;
-	dd->last_rounded_n = min_e_n;
-	dd->last_rounded_rate = _dpll_compute_new_rate(dd->clk_ref->rate,
-						       min_e_m,  min_e_n);
-
-	pr_debug("clock: final least error: e = %d, m = %d, n = %d\n",
-		 min_e, min_e_m, min_e_n);
-	pr_debug("clock: final rate: %ld  (target rate: %ld)\n",
-		 dd->last_rounded_rate, target_rate);
-
-	return dd->last_rounded_rate;
+	return omap2_clksel_set_parent(clk, new_parent);
 }
 
 /*-------------------------------------------------------------------------
@@ -1092,3 +351,20 @@ void omap2_clk_disable_unused(struct clk *clk)
 		pwrdm_clkdm_state_switch(clk->clkdm);
 }
 #endif
+
+/* Common data */
+
+struct clk_functions omap2_clk_functions = {
+	.clk_enable		= omap2_clk_enable,
+	.clk_disable		= omap2_clk_disable,
+	.clk_round_rate		= omap2_clk_round_rate,
+	.clk_set_rate		= omap2_clk_set_rate,
+	.clk_set_parent		= omap2_clk_set_parent,
+	.clk_disable_unused	= omap2_clk_disable_unused,
+#ifdef CONFIG_CPU_FREQ
+	/* These will be removed when the OPP code is integrated */
+	.clk_init_cpufreq_table	= omap2_clk_init_cpufreq_table,
+	.clk_exit_cpufreq_table	= omap2_clk_exit_cpufreq_table,
+#endif
+};
+

arch/arm/mach-omap2/clock.h

@@ -47,7 +47,6 @@
 #define DPLL_LOW_POWER_BYPASS	0x5
 #define DPLL_LOCKED		0x7
 
-int omap2_clk_init(void);
 int omap2_clk_enable(struct clk *clk);
 void omap2_clk_disable(struct clk *clk);
 long omap2_clk_round_rate(struct clk *clk, unsigned long rate);
@@ -78,19 +77,19 @@ u32 omap2_clksel_round_rate_div(struct clk *clk, unsigned long target_rate,
 				u32 *new_div);
 u32 omap2_clksel_to_divisor(struct clk *clk, u32 field_val);
 u32 omap2_divisor_to_clksel(struct clk *clk, u32 div);
-unsigned long omap2_fixed_divisor_recalc(struct clk *clk);
 long omap2_clksel_round_rate(struct clk *clk, unsigned long target_rate);
 int omap2_clksel_set_rate(struct clk *clk, unsigned long rate);
+int omap2_clksel_set_parent(struct clk *clk, struct clk *new_parent);
 u32 omap2_get_dpll_rate(struct clk *clk);
 void omap2_init_dpll_parent(struct clk *clk);
 int omap2_wait_clock_ready(void __iomem *reg, u32 cval, const char *name);
-void omap2_clk_prepare_for_reboot(void);
 int omap2_dflt_clk_enable(struct clk *clk);
 void omap2_dflt_clk_disable(struct clk *clk);
 void omap2_clk_dflt_find_companion(struct clk *clk, void __iomem **other_reg,
 				   u8 *other_bit);
 void omap2_clk_dflt_find_idlest(struct clk *clk, void __iomem **idlest_reg,
 				u8 *idlest_bit);
+void omap2xxx_clk_commit(struct clk *clk);
 
 extern u8 cpu_mask;
 
@@ -104,5 +103,12 @@ extern const struct clksel_rate gpt_32k_rates[];
 extern const struct clksel_rate gpt_sys_rates[];
 extern const struct clksel_rate gfx_l3_rates[];
 
+#if defined(CONFIG_ARCH_OMAP24XX) && defined(CONFIG_CPU_FREQ)
+extern void omap2_clk_init_cpufreq_table(struct cpufreq_frequency_table **table);
+extern void omap2_clk_exit_cpufreq_table(struct cpufreq_frequency_table **table);
+#else
+#define omap2_clk_init_cpufreq_table	0
+#define omap2_clk_exit_cpufreq_table	0
+#endif
 
 #endif

arch/arm/mach-omap2/clock2xxx.c

@@ -1,15 +1,15 @@
 /*
- *  linux/arch/arm/mach-omap2/clock.c
+ * clock2xxx.c - OMAP2xxx-specific clock integration code
  *
- *  Copyright (C) 2005-2008 Texas Instruments, Inc.
- *  Copyright (C) 2004-2008 Nokia Corporation
+ * Copyright (C) 2005-2008 Texas Instruments, Inc.
+ * Copyright (C) 2004-2010 Nokia Corporation
  *
- *  Contacts:
- *  Richard Woodruff <r-woodruff2@ti.com>
- *  Paul Walmsley
+ * Contacts:
+ * Richard Woodruff <r-woodruff2@ti.com>
+ * Paul Walmsley
  *
- *  Based on earlier work by Tuukka Tikkanen, Tony Lindgren,
- *  Gordon McNutt and RidgeRun, Inc.
+ * Based on earlier work by Tuukka Tikkanen, Tony Lindgren,
+ * Gordon McNutt and RidgeRun, Inc.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -17,55 +17,25 @@
  */
 #undef DEBUG
 
-#include <linux/module.h>
 #include <linux/kernel.h>
-#include <linux/device.h>
-#include <linux/list.h>
 #include <linux/errno.h>
-#include <linux/delay.h>
 #include <linux/clk.h>
 #include <linux/io.h>
-#include <linux/cpufreq.h>
-#include <linux/bitops.h>
 
 #include <plat/clock.h>
-#include <plat/sram.h>
-#include <plat/prcm.h>
-#include <plat/clkdev_omap.h>
-#include <asm/div64.h>
-#include <asm/clkdev.h>
 
-#include <plat/sdrc.h>
 #include "clock.h"
 #include "clock2xxx.h"
-#include "opp2xxx.h"
-#include "prm.h"
-#include "prm-regbits-24xx.h"
 #include "cm.h"
 #include "cm-regbits-24xx.h"
 
-
-/* CM_CLKEN_PLL.EN_{54,96}M_PLL options (24XX) */
-#define EN_APLL_STOPPED			0
-#define EN_APLL_LOCKED			3
-
-/* CM_CLKSEL1_PLL.APLLS_CLKIN options (24XX) */
-#define APLLS_CLKIN_19_2MHZ		0
-#define APLLS_CLKIN_13MHZ		2
-#define APLLS_CLKIN_12MHZ		3
-
-/* #define DOWN_VARIABLE_DPLL 1 */		/* Experimental */
-
-const struct prcm_config *curr_prcm_set;
-const struct prcm_config *rate_table;
-
 struct clk *vclk, *sclk, *dclk;
 
-void __iomem *prcm_clksrc_ctrl;
-
-/*-------------------------------------------------------------------------
+/*
  * Omap24xx specific clock functions
- *-------------------------------------------------------------------------*/
+ */
+
+#ifdef CONFIG_ARCH_OMAP2430
 
 /**
  * omap2430_clk_i2chs_find_idlest - return CM_IDLEST info for 2430 I2CHS
@@ -86,6 +56,10 @@ static void omap2430_clk_i2chs_find_idlest(struct clk *clk,
 	*idlest_bit = clk->enable_bit;
 }
 
+#else
+#define omap2430_clk_i2chs_find_idlest	NULL
+#endif
+
 /* 2430 I2CHS has non-standard IDLEST register */
 const struct clkops clkops_omap2430_i2chs_wait = {
 	.enable		= omap2_dflt_clk_enable,
@@ -94,491 +68,10 @@ const struct clkops clkops_omap2430_i2chs_wait = {
 	.find_companion = omap2_clk_dflt_find_companion,
 };
 
-/**
- * omap2xxx_clk_get_core_rate - return the CORE_CLK rate
- * @clk: pointer to the combined dpll_ck + core_ck (currently "dpll_ck")
- *
- * Returns the CORE_CLK rate.  CORE_CLK can have one of three rate
- * sources on OMAP2xxx: the DPLL CLKOUT rate, DPLL CLKOUTX2, or 32KHz
- * (the latter is unusual).  This currently should be called with
- * struct clk *dpll_ck, which is a composite clock of dpll_ck and
- * core_ck.
- */
-unsigned long omap2xxx_clk_get_core_rate(struct clk *clk)
-{
-	long long core_clk;
-	u32 v;
-
-	core_clk = omap2_get_dpll_rate(clk);
-
-	v = cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
-	v &= OMAP24XX_CORE_CLK_SRC_MASK;
-
-	if (v == CORE_CLK_SRC_32K)
-		core_clk = 32768;
-	else
-		core_clk *= v;
-
-	return core_clk;
-}
-
-static int omap2_enable_osc_ck(struct clk *clk)
-{
-	u32 pcc;
-
-	pcc = __raw_readl(prcm_clksrc_ctrl);
-
-	__raw_writel(pcc & ~OMAP_AUTOEXTCLKMODE_MASK, prcm_clksrc_ctrl);
-
-	return 0;
-}
-
-static void omap2_disable_osc_ck(struct clk *clk)
-{
-	u32 pcc;
-
-	pcc = __raw_readl(prcm_clksrc_ctrl);
-
-	__raw_writel(pcc | OMAP_AUTOEXTCLKMODE_MASK, prcm_clksrc_ctrl);
-}
-
-const struct clkops clkops_oscck = {
-	.enable		= omap2_enable_osc_ck,
-	.disable	= omap2_disable_osc_ck,
-};
-
-#ifdef OLD_CK
-/* Recalculate SYST_CLK */
-static void omap2_sys_clk_recalc(struct clk *clk)
-{
-	u32 div = PRCM_CLKSRC_CTRL;
-	div &= (1 << 7) | (1 << 6);	/* Test if ext clk divided by 1 or 2 */
-	div >>= clk->rate_offset;
-	clk->rate = (clk->parent->rate / div);
-	propagate_rate(clk);
-}
-#endif	/* OLD_CK */
-
-/* Enable an APLL if off */
-static int omap2_clk_apll_enable(struct clk *clk, u32 status_mask)
-{
-	u32 cval, apll_mask;
-
-	apll_mask = EN_APLL_LOCKED << clk->enable_bit;
-
-	cval = cm_read_mod_reg(PLL_MOD, CM_CLKEN);
-
-	if ((cval & apll_mask) == apll_mask)
-		return 0;   /* apll already enabled */
-
-	cval &= ~apll_mask;
-	cval |= apll_mask;
-	cm_write_mod_reg(cval, PLL_MOD, CM_CLKEN);
-
-	omap2_cm_wait_idlest(OMAP_CM_REGADDR(PLL_MOD, CM_IDLEST), status_mask,
-			     clk->name);
-
-	/*
-	 * REVISIT: Should we return an error code if omap2_wait_clock_ready()
-	 * fails?
-	 */
-	return 0;
-}
-
-static int omap2_clk_apll96_enable(struct clk *clk)
-{
-	return omap2_clk_apll_enable(clk, OMAP24XX_ST_96M_APLL);
-}
-
-static int omap2_clk_apll54_enable(struct clk *clk)
-{
-	return omap2_clk_apll_enable(clk, OMAP24XX_ST_54M_APLL);
-}
-
-/* Stop APLL */
-static void omap2_clk_apll_disable(struct clk *clk)
-{
-	u32 cval;
-
-	cval = cm_read_mod_reg(PLL_MOD, CM_CLKEN);
-	cval &= ~(EN_APLL_LOCKED << clk->enable_bit);
-	cm_write_mod_reg(cval, PLL_MOD, CM_CLKEN);
-}
-
-const struct clkops clkops_apll96 = {
-	.enable		= omap2_clk_apll96_enable,
-	.disable	= omap2_clk_apll_disable,
-};
-
-const struct clkops clkops_apll54 = {
-	.enable		= omap2_clk_apll54_enable,
-	.disable	= omap2_clk_apll_disable,
-};
-
-/*
- * Uses the current prcm set to tell if a rate is valid.
- * You can go slower, but not faster within a given rate set.
- */
-long omap2_dpllcore_round_rate(unsigned long target_rate)
-{
-	u32 high, low, core_clk_src;
-
-	core_clk_src = cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
-	core_clk_src &= OMAP24XX_CORE_CLK_SRC_MASK;
-
-	if (core_clk_src == CORE_CLK_SRC_DPLL) {	/* DPLL clockout */
-		high = curr_prcm_set->dpll_speed * 2;
-		low = curr_prcm_set->dpll_speed;
-	} else {				/* DPLL clockout x 2 */
-		high = curr_prcm_set->dpll_speed;
-		low = curr_prcm_set->dpll_speed / 2;
-	}
-
-#ifdef DOWN_VARIABLE_DPLL
-	if (target_rate > high)
-		return high;
-	else
-		return target_rate;
-#else
-	if (target_rate > low)
-		return high;
-	else
-		return low;
-#endif
-
-}
-
-unsigned long omap2_dpllcore_recalc(struct clk *clk)
-{
-	return omap2xxx_clk_get_core_rate(clk);
-}
-
-int omap2_reprogram_dpllcore(struct clk *clk, unsigned long rate)
-{
-	u32 cur_rate, low, mult, div, valid_rate, done_rate;
-	u32 bypass = 0;
-	struct prcm_config tmpset;
-	const struct dpll_data *dd;
-
-	cur_rate = omap2xxx_clk_get_core_rate(dclk);
-	mult = cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
-	mult &= OMAP24XX_CORE_CLK_SRC_MASK;
-
-	if ((rate == (cur_rate / 2)) && (mult == 2)) {
-		omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL, 1);
-	} else if ((rate == (cur_rate * 2)) && (mult == 1)) {
-		omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL_X2, 1);
-	} else if (rate != cur_rate) {
-		valid_rate = omap2_dpllcore_round_rate(rate);
-		if (valid_rate != rate)
-			return -EINVAL;
-
-		if (mult == 1)
-			low = curr_prcm_set->dpll_speed;
-		else
-			low = curr_prcm_set->dpll_speed / 2;
-
-		dd = clk->dpll_data;
-		if (!dd)
-			return -EINVAL;
-
-		tmpset.cm_clksel1_pll = __raw_readl(dd->mult_div1_reg);
-		tmpset.cm_clksel1_pll &= ~(dd->mult_mask |
-					   dd->div1_mask);
-		div = ((curr_prcm_set->xtal_speed / 1000000) - 1);
-		tmpset.cm_clksel2_pll = cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
-		tmpset.cm_clksel2_pll &= ~OMAP24XX_CORE_CLK_SRC_MASK;
-		if (rate > low) {
-			tmpset.cm_clksel2_pll |= CORE_CLK_SRC_DPLL_X2;
-			mult = ((rate / 2) / 1000000);
-			done_rate = CORE_CLK_SRC_DPLL_X2;
-		} else {
-			tmpset.cm_clksel2_pll |= CORE_CLK_SRC_DPLL;
-			mult = (rate / 1000000);
-			done_rate = CORE_CLK_SRC_DPLL;
-		}
-		tmpset.cm_clksel1_pll |= (div << __ffs(dd->mult_mask));
-		tmpset.cm_clksel1_pll |= (mult << __ffs(dd->div1_mask));
-
-		/* Worst case */
-		tmpset.base_sdrc_rfr = SDRC_RFR_CTRL_BYPASS;
-
-		if (rate == curr_prcm_set->xtal_speed)	/* If asking for 1-1 */
-			bypass = 1;
-
-		/* For omap2xxx_sdrc_init_params() */
-		omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL_X2, 1);
-
-		/* Force dll lock mode */
-		omap2_set_prcm(tmpset.cm_clksel1_pll, tmpset.base_sdrc_rfr,
-			       bypass);
-
-		/* Errata: ret dll entry state */
-		omap2xxx_sdrc_init_params(omap2xxx_sdrc_dll_is_unlocked());
-		omap2xxx_sdrc_reprogram(done_rate, 0);
-	}
-
-	return 0;
-}
-
-/**
- * omap2_table_mpu_recalc - just return the MPU speed
- * @clk: virt_prcm_set struct clk
- *
- * Set virt_prcm_set's rate to the mpu_speed field of the current PRCM set.
- */
-unsigned long omap2_table_mpu_recalc(struct clk *clk)
-{
-	return curr_prcm_set->mpu_speed;
-}
-
-/*
- * Look for a rate equal or less than the target rate given a configuration set.
- *
- * What's not entirely clear is "which" field represents the key field.
- * Some might argue L3-DDR, others ARM, others IVA. This code is simple and
- * just uses the ARM rates.
- */
-long omap2_round_to_table_rate(struct clk *clk, unsigned long rate)
-{
-	const struct prcm_config *ptr;
-	long highest_rate;
-	long sys_ck_rate;
-
-	sys_ck_rate = clk_get_rate(sclk);
-
-	highest_rate = -EINVAL;
-
-	for (ptr = rate_table; ptr->mpu_speed; ptr++) {
-		if (!(ptr->flags & cpu_mask))
-			continue;
-		if (ptr->xtal_speed != sys_ck_rate)
-			continue;
-
-		highest_rate = ptr->mpu_speed;
-
-		/* Can check only after xtal frequency check */
-		if (ptr->mpu_speed <= rate)
-			break;
-	}
-	return highest_rate;
-}
-
-/* Sets basic clocks based on the specified rate */
-int omap2_select_table_rate(struct clk *clk, unsigned long rate)
-{
-	u32 cur_rate, done_rate, bypass = 0, tmp;
-	const struct prcm_config *prcm;
-	unsigned long found_speed = 0;
-	unsigned long flags;
-	long sys_ck_rate;
-
-	sys_ck_rate = clk_get_rate(sclk);
-
-	for (prcm = rate_table; prcm->mpu_speed; prcm++) {
-		if (!(prcm->flags & cpu_mask))
-			continue;
-
-		if (prcm->xtal_speed != sys_ck_rate)
-			continue;
-
-		if (prcm->mpu_speed <= rate) {
-			found_speed = prcm->mpu_speed;
-			break;
-		}
-	}
-
-	if (!found_speed) {
-		printk(KERN_INFO "Could not set MPU rate to %luMHz\n",
-		       rate / 1000000);
-		return -EINVAL;
-	}
-
-	curr_prcm_set = prcm;
-	cur_rate = omap2xxx_clk_get_core_rate(dclk);
-
-	if (prcm->dpll_speed == cur_rate / 2) {
-		omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL, 1);
-	} else if (prcm->dpll_speed == cur_rate * 2) {
-		omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL_X2, 1);
-	} else if (prcm->dpll_speed != cur_rate) {
-		local_irq_save(flags);
-
-		if (prcm->dpll_speed == prcm->xtal_speed)
-			bypass = 1;
-
-		if ((prcm->cm_clksel2_pll & OMAP24XX_CORE_CLK_SRC_MASK) ==
-		    CORE_CLK_SRC_DPLL_X2)
-			done_rate = CORE_CLK_SRC_DPLL_X2;
-		else
-			done_rate = CORE_CLK_SRC_DPLL;
-
-		/* MPU divider */
-		cm_write_mod_reg(prcm->cm_clksel_mpu, MPU_MOD, CM_CLKSEL);
-
-		/* dsp + iva1 div(2420), iva2.1(2430) */
-		cm_write_mod_reg(prcm->cm_clksel_dsp,
-				 OMAP24XX_DSP_MOD, CM_CLKSEL);
-
-		cm_write_mod_reg(prcm->cm_clksel_gfx, GFX_MOD, CM_CLKSEL);
-
-		/* Major subsystem dividers */
-		tmp = cm_read_mod_reg(CORE_MOD, CM_CLKSEL1) & OMAP24XX_CLKSEL_DSS2_MASK;
-		cm_write_mod_reg(prcm->cm_clksel1_core | tmp, CORE_MOD,
-				 CM_CLKSEL1);
-
-		if (cpu_is_omap2430())
-			cm_write_mod_reg(prcm->cm_clksel_mdm,
-					 OMAP2430_MDM_MOD, CM_CLKSEL);
-
-		/* x2 to enter omap2xxx_sdrc_init_params() */
-		omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL_X2, 1);
-
-		omap2_set_prcm(prcm->cm_clksel1_pll, prcm->base_sdrc_rfr,
-			       bypass);
-
-		omap2xxx_sdrc_init_params(omap2xxx_sdrc_dll_is_unlocked());
-		omap2xxx_sdrc_reprogram(done_rate, 0);
-
-		local_irq_restore(flags);
-	}
-
-	return 0;
-}
-
-#ifdef CONFIG_CPU_FREQ
-/*
- * Walk PRCM rate table and fillout cpufreq freq_table
- * XXX This should be replaced by an OPP layer in the near future
- */
-static struct cpufreq_frequency_table *freq_table;
-
-void omap2_clk_init_cpufreq_table(struct cpufreq_frequency_table **table)
-{
-	const struct prcm_config *prcm;
-	long sys_ck_rate;
-	int i = 0;
-	int tbl_sz = 0;
-
-	sys_ck_rate = clk_get_rate(sclk);
-
-	for (prcm = rate_table; prcm->mpu_speed; prcm++) {
-		if (!(prcm->flags & cpu_mask))
-			continue;
-		if (prcm->xtal_speed != sys_ck_rate)
-			continue;
-
-		/* don't put bypass rates in table */
-		if (prcm->dpll_speed == prcm->xtal_speed)
-			continue;
-
-		tbl_sz++;
-	}
-
-	/*
-	 * XXX Ensure that we're doing what CPUFreq expects for this error
-	 * case and the following one
-	 */
-	if (tbl_sz == 0) {
-		pr_warning("%s: no matching entries in rate_table\n",
-			   __func__);
-		return;
-	}
-
-	/* Include the CPUFREQ_TABLE_END terminator entry */
-	tbl_sz++;
-
-	freq_table = kzalloc(sizeof(struct cpufreq_frequency_table) * tbl_sz,
-			     GFP_ATOMIC);
-	if (!freq_table) {
-		pr_err("%s: could not kzalloc frequency table\n", __func__);
-		return;
-	}
-
-	for (prcm = rate_table; prcm->mpu_speed; prcm++) {
-		if (!(prcm->flags & cpu_mask))
-			continue;
-		if (prcm->xtal_speed != sys_ck_rate)
-			continue;
-
-		/* don't put bypass rates in table */
-		if (prcm->dpll_speed == prcm->xtal_speed)
-			continue;
-
-		freq_table[i].index = i;
-		freq_table[i].frequency = prcm->mpu_speed / 1000;
-		i++;
-	}
-
-	freq_table[i].index = i;
-	freq_table[i].frequency = CPUFREQ_TABLE_END;
-
-	*table = &freq_table[0];
-}
-
-void omap2_clk_exit_cpufreq_table(struct cpufreq_frequency_table **table)
-{
-	kfree(freq_table);
-}
-
-#endif
-
-struct clk_functions omap2_clk_functions = {
-	.clk_enable		= omap2_clk_enable,
-	.clk_disable		= omap2_clk_disable,
-	.clk_round_rate		= omap2_clk_round_rate,
-	.clk_set_rate		= omap2_clk_set_rate,
-	.clk_set_parent		= omap2_clk_set_parent,
-	.clk_disable_unused	= omap2_clk_disable_unused,
-#ifdef	CONFIG_CPU_FREQ
-	.clk_init_cpufreq_table	= omap2_clk_init_cpufreq_table,
-	.clk_exit_cpufreq_table	= omap2_clk_exit_cpufreq_table,
-#endif
-};
-
-static u32 omap2_get_apll_clkin(void)
-{
-	u32 aplls, srate = 0;
-
-	aplls = cm_read_mod_reg(PLL_MOD, CM_CLKSEL1);
-	aplls &= OMAP24XX_APLLS_CLKIN_MASK;
-	aplls >>= OMAP24XX_APLLS_CLKIN_SHIFT;
-
-	if (aplls == APLLS_CLKIN_19_2MHZ)
-		srate = 19200000;
-	else if (aplls == APLLS_CLKIN_13MHZ)
-		srate = 13000000;
-	else if (aplls == APLLS_CLKIN_12MHZ)
-		srate = 12000000;
-
-	return srate;
-}
-
-static u32 omap2_get_sysclkdiv(void)
-{
-	u32 div;
-
-	div = __raw_readl(prcm_clksrc_ctrl);
-	div &= OMAP_SYSCLKDIV_MASK;
-	div >>= OMAP_SYSCLKDIV_SHIFT;
-
-	return div;
-}
-
-unsigned long omap2_osc_clk_recalc(struct clk *clk)
-{
-	return omap2_get_apll_clkin() * omap2_get_sysclkdiv();
-}
-
-unsigned long omap2_sys_clk_recalc(struct clk *clk)
-{
-	return clk->parent->rate / omap2_get_sysclkdiv();
-}
-
 /*
  * Set clocks for bypass mode for reboot to work.
  */
-void omap2_clk_prepare_for_reboot(void)
+void omap2xxx_clk_prepare_for_reboot(void)
 {
 	u32 rate;
 
@@ -593,11 +86,14 @@ void omap2_clk_prepare_for_reboot(void)
  * Switch the MPU rate if specified on cmdline.
  * We cannot do this early until cmdline is parsed.
  */
-static int __init omap2_clk_arch_init(void)
+static int __init omap2xxx_clk_arch_init(void)
 {
 	struct clk *virt_prcm_set, *sys_ck, *dpll_ck, *mpu_ck;
 	unsigned long sys_ck_rate;
 
+	if (!cpu_is_omap24xx())
+		return 0;
+
 	if (!mpurate)
 		return -EINVAL;
 
@@ -621,6 +117,6 @@ static int __init omap2_clk_arch_init(void)
 
 	return 0;
 }
-arch_initcall(omap2_clk_arch_init);
+arch_initcall(omap2xxx_clk_arch_init);
 
 

arch/arm/mach-omap2/clock2xxx.h

@@ -11,12 +11,15 @@
 unsigned long omap2_table_mpu_recalc(struct clk *clk);
 int omap2_select_table_rate(struct clk *clk, unsigned long rate);
 long omap2_round_to_table_rate(struct clk *clk, unsigned long rate);
-unsigned long omap2_sys_clk_recalc(struct clk *clk);
+unsigned long omap2xxx_sys_clk_recalc(struct clk *clk);
 unsigned long omap2_osc_clk_recalc(struct clk *clk);
-unsigned long omap2_sys_clk_recalc(struct clk *clk);
 unsigned long omap2_dpllcore_recalc(struct clk *clk);
 int omap2_reprogram_dpllcore(struct clk *clk, unsigned long rate);
 unsigned long omap2xxx_clk_get_core_rate(struct clk *clk);
+u32 omap2xxx_get_apll_clkin(void);
+u32 omap2xxx_get_sysclkdiv(void);
+void omap2xxx_clk_prepare_for_reboot(void);
+int omap2xxx_clk_init(void);
 
 /* REVISIT: These should be set dynamically for CONFIG_MULTI_OMAP2 */
 #ifdef CONFIG_ARCH_OMAP2420

arch/arm/mach-omap2/clock2xxx_data.c

@@ -79,7 +79,7 @@ static struct clk sys_ck = {		/* (*12, *13, 19.2, 26, 38.4)MHz */
 	.ops		= &clkops_null,
 	.parent		= &osc_ck,
 	.clkdm_name	= "wkup_clkdm",
-	.recalc		= &omap2_sys_clk_recalc,
+	.recalc		= &omap2xxx_sys_clk_recalc,
 };
 
 static struct clk alt_ck = {		/* Typical 54M or 48M, may not exist */
@@ -261,7 +261,7 @@ static struct clk func_12m_ck = {
 	.parent		= &func_48m_ck,
 	.fixed_div	= 4,
 	.clkdm_name	= "wkup_clkdm",
-	.recalc		= &omap2_fixed_divisor_recalc,
+	.recalc		= &omap_fixed_divisor_recalc,
 };
 
 /* Secure timer, only available in secure mode */
@@ -557,7 +557,7 @@ static struct clk iva1_mpu_int_ifck = {
 	.enable_reg	= OMAP_CM_REGADDR(OMAP24XX_DSP_MOD, CM_FCLKEN),
 	.enable_bit	= OMAP2420_EN_IVA_MPU_SHIFT,
 	.fixed_div	= 2,
-	.recalc		= &omap2_fixed_divisor_recalc,
+	.recalc		= &omap_fixed_divisor_recalc,
 };
 
 /*
@@ -2238,7 +2238,7 @@ static struct omap_clk omap24xx_clks[] = {
  * init code
  */
 
-int __init omap2_clk_init(void)
+int __init omap2xxx_clk_init(void)
 {
 	const struct prcm_config *prcm;
 	struct omap_clk *c;
@@ -2264,7 +2264,7 @@ int __init omap2_clk_init(void)
 
 	osc_ck.rate = omap2_osc_clk_recalc(&osc_ck);
 	propagate_rate(&osc_ck);
-	sys_ck.rate = omap2_sys_clk_recalc(&sys_ck);
+	sys_ck.rate = omap2xxx_sys_clk_recalc(&sys_ck);
 	propagate_rate(&sys_ck);
 
 	for (c = omap24xx_clks; c < omap24xx_clks + ARRAY_SIZE(omap24xx_clks); c++)

arch/arm/mach-omap2/clock34xx.c

@@ -2,10 +2,10 @@
  * OMAP3-specific clock framework functions
  *
  * Copyright (C) 2007-2008 Texas Instruments, Inc.
- * Copyright (C) 2007-2009 Nokia Corporation
+ * Copyright (C) 2007-2010 Nokia Corporation
  *
- * Written by Paul Walmsley
- * Testing and integration fixes by Jouni Högander
+ * Paul Walmsley
+ * Jouni Högander
  *
  * Parts of this code are based on code written by
  * Richard Woodruff, Tony Lindgren, Tuukka Tikkanen, Karthik Dasu
@@ -16,34 +16,22 @@
  */
 #undef DEBUG
 
-#include <linux/module.h>
 #include <linux/kernel.h>
-#include <linux/device.h>
-#include <linux/list.h>
 #include <linux/errno.h>
 #include <linux/delay.h>
 #include <linux/clk.h>
 #include <linux/io.h>
-#include <linux/limits.h>
-#include <linux/bitops.h>
 
 #include <plat/cpu.h>
 #include <plat/clock.h>
-#include <plat/sram.h>
-#include <plat/sdrc.h>
-#include <asm/div64.h>
-#include <asm/clkdev.h>
 
 #include "clock.h"
 #include "clock34xx.h"
-#include "sdrc.h"
 #include "prm.h"
 #include "prm-regbits-34xx.h"
 #include "cm.h"
 #include "cm-regbits-34xx.h"
 
-#define CYCLES_PER_MHZ			1000000
-
 /*
  * DPLL5_FREQ_FOR_USBHOST: USBHOST and USBTLL are the only clocks
  * that are sourced by DPLL5, and both of these require this clock
@@ -162,129 +150,7 @@ int omap3_dpll4_set_rate(struct clk *clk, unsigned long rate)
 	return omap3_noncore_dpll_set_rate(clk, rate);
 }
 
-
-/*
- * CORE DPLL (DPLL3) rate programming functions
- *
- * These call into SRAM code to do the actual CM writes, since the SDRAM
- * is clocked from DPLL3.
- */
-
-/**
- * omap3_core_dpll_m2_set_rate - set CORE DPLL M2 divider
- * @clk: struct clk * of DPLL to set
- * @rate: rounded target rate
- *
- * Program the DPLL M2 divider with the rounded target rate.  Returns
- * -EINVAL upon error, or 0 upon success.
- */
-int omap3_core_dpll_m2_set_rate(struct clk *clk, unsigned long rate)
-{
-	u32 new_div = 0;
-	u32 unlock_dll = 0;
-	u32 c;
-	unsigned long validrate, sdrcrate, _mpurate;
-	struct omap_sdrc_params *sdrc_cs0;
-	struct omap_sdrc_params *sdrc_cs1;
-	int ret;
-
-	if (!clk || !rate)
-		return -EINVAL;
-
-	validrate = omap2_clksel_round_rate_div(clk, rate, &new_div);
-	if (validrate != rate)
-		return -EINVAL;
-
-	sdrcrate = sdrc_ick_p->rate;
-	if (rate > clk->rate)
-		sdrcrate <<= ((rate / clk->rate) >> 1);
-	else
-		sdrcrate >>= ((clk->rate / rate) >> 1);
-
-	ret = omap2_sdrc_get_params(sdrcrate, &sdrc_cs0, &sdrc_cs1);
-	if (ret)
-		return -EINVAL;
-
-	if (sdrcrate < MIN_SDRC_DLL_LOCK_FREQ) {
-		pr_debug("clock: will unlock SDRC DLL\n");
-		unlock_dll = 1;
-	}
-
-	/*
-	 * XXX This only needs to be done when the CPU frequency changes
-	 */
-	_mpurate = arm_fck_p->rate / CYCLES_PER_MHZ;
-	c = (_mpurate << SDRC_MPURATE_SCALE) >> SDRC_MPURATE_BASE_SHIFT;
-	c += 1;  /* for safety */
-	c *= SDRC_MPURATE_LOOPS;
-	c >>= SDRC_MPURATE_SCALE;
-	if (c == 0)
-		c = 1;
-
-	pr_debug("clock: changing CORE DPLL rate from %lu to %lu\n", clk->rate,
-		 validrate);
-	pr_debug("clock: SDRC CS0 timing params used:"
-		 " RFR %08x CTRLA %08x CTRLB %08x MR %08x\n",
-		 sdrc_cs0->rfr_ctrl, sdrc_cs0->actim_ctrla,
-		 sdrc_cs0->actim_ctrlb, sdrc_cs0->mr);
-	if (sdrc_cs1)
-		pr_debug("clock: SDRC CS1 timing params used: "
-		 " RFR %08x CTRLA %08x CTRLB %08x MR %08x\n",
-		 sdrc_cs1->rfr_ctrl, sdrc_cs1->actim_ctrla,
-		 sdrc_cs1->actim_ctrlb, sdrc_cs1->mr);
-
-	if (sdrc_cs1)
-		omap3_configure_core_dpll(
-				  new_div, unlock_dll, c, rate > clk->rate,
-				  sdrc_cs0->rfr_ctrl, sdrc_cs0->actim_ctrla,
-				  sdrc_cs0->actim_ctrlb, sdrc_cs0->mr,
-				  sdrc_cs1->rfr_ctrl, sdrc_cs1->actim_ctrla,
-				  sdrc_cs1->actim_ctrlb, sdrc_cs1->mr);
-	else
-		omap3_configure_core_dpll(
-				  new_div, unlock_dll, c, rate > clk->rate,
-				  sdrc_cs0->rfr_ctrl, sdrc_cs0->actim_ctrla,
-				  sdrc_cs0->actim_ctrlb, sdrc_cs0->mr,
-				  0, 0, 0, 0);
-
-	return 0;
-}
-
-/* Common clock code */
-
-/*
- * As it is structured now, this will prevent an OMAP2/3 multiboot
- * kernel from compiling.  This will need further attention.
- */
-#if defined(CONFIG_ARCH_OMAP3)
-
-struct clk_functions omap2_clk_functions = {
-	.clk_enable		= omap2_clk_enable,
-	.clk_disable		= omap2_clk_disable,
-	.clk_round_rate		= omap2_clk_round_rate,
-	.clk_set_rate		= omap2_clk_set_rate,
-	.clk_set_parent		= omap2_clk_set_parent,
-	.clk_disable_unused	= omap2_clk_disable_unused,
-};
-
-/*
- * Set clocks for bypass mode for reboot to work.
- */
-void omap2_clk_prepare_for_reboot(void)
-{
-	/* REVISIT: Not ready for 343x */
-#if 0
-	u32 rate;
-
-	if (vclk == NULL || sclk == NULL)
-		return;
-
-	rate = clk_get_rate(sclk);
-	clk_set_rate(vclk, rate);
-#endif
-}
-
-void omap3_clk_lock_dpll5(void)
+void __init omap3_clk_lock_dpll5(void)
 {
 	struct clk *dpll5_clk;
 	struct clk *dpll5_m2_clk;
@@ -306,17 +172,22 @@ void omap3_clk_lock_dpll5(void)
 	return;
 }
 
+/* Common clock code */
+
 /* REVISIT: Move this init stuff out into clock.c */
 
 /*
  * Switch the MPU rate if specified on cmdline.
  * We cannot do this early until cmdline is parsed.
  */
-static int __init omap2_clk_arch_init(void)
+static int __init omap3xxx_clk_arch_init(void)
 {
 	struct clk *osc_sys_ck, *dpll1_ck, *arm_fck, *core_ck;
 	unsigned long osc_sys_rate;
 
+	if (!cpu_is_omap34xx())
+		return 0;
+
 	if (!mpurate)
 		return -EINVAL;
 
@@ -345,9 +216,6 @@ static int __init omap2_clk_arch_init(void)
 
 	return 0;
 }
-arch_initcall(omap2_clk_arch_init);
-
-
-#endif
+arch_initcall(omap3xxx_clk_arch_init);
 
 

arch/arm/mach-omap2/clock34xx.h

@@ -8,6 +8,7 @@
 #ifndef __ARCH_ARM_MACH_OMAP2_CLOCK_34XX_H
 #define __ARCH_ARM_MACH_OMAP2_CLOCK_34XX_H
 
+int omap3xxx_clk_init(void);
 int omap3_dpll4_set_rate(struct clk *clk, unsigned long rate);
 int omap3_core_dpll_m2_set_rate(struct clk *clk, unsigned long rate);
 void omap3_clk_lock_dpll5(void);

arch/arm/mach-omap2/clock34xx_data.c

@@ -735,7 +735,7 @@ static struct clk omap_12m_fck = {
 	.ops		= &clkops_null,
 	.parent		= &omap_48m_fck,
 	.fixed_div	= 4,
-	.recalc		= &omap2_fixed_divisor_recalc,
+	.recalc		= &omap_fixed_divisor_recalc,
 };
 
 /* This virstual clock is the source for dpll4_m4x2_ck */
@@ -1588,7 +1588,7 @@ static struct clk ssi_sst_fck_3430es1 = {
 	.ops		= &clkops_null,
 	.parent		= &ssi_ssr_fck_3430es1,
 	.fixed_div	= 2,
-	.recalc		= &omap2_fixed_divisor_recalc,
+	.recalc		= &omap_fixed_divisor_recalc,
 };
 
 static struct clk ssi_sst_fck_3430es2 = {
@@ -1596,7 +1596,7 @@ static struct clk ssi_sst_fck_3430es2 = {
 	.ops		= &clkops_null,
 	.parent		= &ssi_ssr_fck_3430es2,
 	.fixed_div	= 2,
-	.recalc		= &omap2_fixed_divisor_recalc,
+	.recalc		= &omap_fixed_divisor_recalc,
 };
 
 
@@ -2988,139 +2988,140 @@ static struct clk wdt1_fck = {
  * clkdev
  */
 
-static struct omap_clk omap34xx_clks[] = {
-	CLK(NULL,	"omap_32k_fck",	&omap_32k_fck,	CK_343X),
-	CLK(NULL,	"virt_12m_ck",	&virt_12m_ck,	CK_343X),
-	CLK(NULL,	"virt_13m_ck",	&virt_13m_ck,	CK_343X),
-	CLK(NULL,	"virt_16_8m_ck", &virt_16_8m_ck, CK_3430ES2),
-	CLK(NULL,	"virt_19_2m_ck", &virt_19_2m_ck, CK_343X),
-	CLK(NULL,	"virt_26m_ck",	&virt_26m_ck,	CK_343X),
-	CLK(NULL,	"virt_38_4m_ck", &virt_38_4m_ck, CK_343X),
-	CLK(NULL,	"osc_sys_ck",	&osc_sys_ck,	CK_343X),
-	CLK(NULL,	"sys_ck",	&sys_ck,	CK_343X),
-	CLK(NULL,	"sys_altclk",	&sys_altclk,	CK_343X),
-	CLK(NULL,	"mcbsp_clks",	&mcbsp_clks,	CK_343X),
-	CLK(NULL,	"sys_clkout1",	&sys_clkout1,	CK_343X),
-	CLK(NULL,	"dpll1_ck",	&dpll1_ck,	CK_343X),
-	CLK(NULL,	"dpll1_x2_ck",	&dpll1_x2_ck,	CK_343X),
-	CLK(NULL,	"dpll1_x2m2_ck", &dpll1_x2m2_ck, CK_343X),
+/* XXX At some point we should rename this file to clock3xxx_data.c */
+static struct omap_clk omap3xxx_clks[] = {
+	CLK(NULL,	"omap_32k_fck",	&omap_32k_fck,	CK_3XXX),
+	CLK(NULL,	"virt_12m_ck",	&virt_12m_ck,	CK_3XXX),
+	CLK(NULL,	"virt_13m_ck",	&virt_13m_ck,	CK_3XXX),
+	CLK(NULL,	"virt_16_8m_ck", &virt_16_8m_ck, CK_3430ES2 | CK_AM35XX),
+	CLK(NULL,	"virt_19_2m_ck", &virt_19_2m_ck, CK_3XXX),
+	CLK(NULL,	"virt_26m_ck",	&virt_26m_ck,	CK_3XXX),
+	CLK(NULL,	"virt_38_4m_ck", &virt_38_4m_ck, CK_3XXX),
+	CLK(NULL,	"osc_sys_ck",	&osc_sys_ck,	CK_3XXX),
+	CLK(NULL,	"sys_ck",	&sys_ck,	CK_3XXX),
+	CLK(NULL,	"sys_altclk",	&sys_altclk,	CK_3XXX),
+	CLK(NULL,	"mcbsp_clks",	&mcbsp_clks,	CK_3XXX),
+	CLK(NULL,	"sys_clkout1",	&sys_clkout1,	CK_3XXX),
+	CLK(NULL,	"dpll1_ck",	&dpll1_ck,	CK_3XXX),
+	CLK(NULL,	"dpll1_x2_ck",	&dpll1_x2_ck,	CK_3XXX),
+	CLK(NULL,	"dpll1_x2m2_ck", &dpll1_x2m2_ck, CK_3XXX),
 	CLK(NULL,	"dpll2_ck",	&dpll2_ck,	CK_343X),
 	CLK(NULL,	"dpll2_m2_ck",	&dpll2_m2_ck,	CK_343X),
-	CLK(NULL,	"dpll3_ck",	&dpll3_ck,	CK_343X),
-	CLK(NULL,	"core_ck",	&core_ck,	CK_343X),
-	CLK(NULL,	"dpll3_x2_ck",	&dpll3_x2_ck,	CK_343X),
-	CLK(NULL,	"dpll3_m2_ck",	&dpll3_m2_ck,	CK_343X),
-	CLK(NULL,	"dpll3_m2x2_ck", &dpll3_m2x2_ck, CK_343X),
-	CLK(NULL,	"dpll3_m3_ck",	&dpll3_m3_ck,	CK_343X),
-	CLK(NULL,	"dpll3_m3x2_ck", &dpll3_m3x2_ck, CK_343X),
-	CLK("etb",	"emu_core_alwon_ck", &emu_core_alwon_ck, CK_343X),
-	CLK(NULL,	"dpll4_ck",	&dpll4_ck,	CK_343X),
-	CLK(NULL,	"dpll4_x2_ck",	&dpll4_x2_ck,	CK_343X),
-	CLK(NULL,	"omap_96m_alwon_fck", &omap_96m_alwon_fck, CK_343X),
-	CLK(NULL,	"omap_96m_fck",	&omap_96m_fck,	CK_343X),
-	CLK(NULL,	"cm_96m_fck",	&cm_96m_fck,	CK_343X),
-	CLK(NULL,	"omap_54m_fck",	&omap_54m_fck,	CK_343X),
-	CLK(NULL,	"omap_48m_fck",	&omap_48m_fck,	CK_343X),
-	CLK(NULL,	"omap_12m_fck",	&omap_12m_fck,	CK_343X),
-	CLK(NULL,	"dpll4_m2_ck",	&dpll4_m2_ck,	CK_343X),
-	CLK(NULL,	"dpll4_m2x2_ck", &dpll4_m2x2_ck, CK_343X),
-	CLK(NULL,	"dpll4_m3_ck",	&dpll4_m3_ck,	CK_343X),
-	CLK(NULL,	"dpll4_m3x2_ck", &dpll4_m3x2_ck, CK_343X),
-	CLK(NULL,	"dpll4_m4_ck",	&dpll4_m4_ck,	CK_343X),
-	CLK(NULL,	"dpll4_m4x2_ck", &dpll4_m4x2_ck, CK_343X),
-	CLK(NULL,	"dpll4_m5_ck",	&dpll4_m5_ck,	CK_343X),
-	CLK(NULL,	"dpll4_m5x2_ck", &dpll4_m5x2_ck, CK_343X),
-	CLK(NULL,	"dpll4_m6_ck",	&dpll4_m6_ck,	CK_343X),
-	CLK(NULL,	"dpll4_m6x2_ck", &dpll4_m6x2_ck, CK_343X),
-	CLK("etb",	"emu_per_alwon_ck", &emu_per_alwon_ck, CK_343X),
-	CLK(NULL,	"dpll5_ck",	&dpll5_ck,	CK_3430ES2),
-	CLK(NULL,	"dpll5_m2_ck",	&dpll5_m2_ck,	CK_3430ES2),
-	CLK(NULL,	"clkout2_src_ck", &clkout2_src_ck, CK_343X),
-	CLK(NULL,	"sys_clkout2",	&sys_clkout2,	CK_343X),
-	CLK(NULL,	"corex2_fck",	&corex2_fck,	CK_343X),
-	CLK(NULL,	"dpll1_fck",	&dpll1_fck,	CK_343X),
-	CLK(NULL,	"mpu_ck",	&mpu_ck,	CK_343X),
-	CLK(NULL,	"arm_fck",	&arm_fck,	CK_343X),
-	CLK("etb",	"emu_mpu_alwon_ck", &emu_mpu_alwon_ck, CK_343X),
+	CLK(NULL,	"dpll3_ck",	&dpll3_ck,	CK_3XXX),
+	CLK(NULL,	"core_ck",	&core_ck,	CK_3XXX),
+	CLK(NULL,	"dpll3_x2_ck",	&dpll3_x2_ck,	CK_3XXX),
+	CLK(NULL,	"dpll3_m2_ck",	&dpll3_m2_ck,	CK_3XXX),
+	CLK(NULL,	"dpll3_m2x2_ck", &dpll3_m2x2_ck, CK_3XXX),
+	CLK(NULL,	"dpll3_m3_ck",	&dpll3_m3_ck,	CK_3XXX),
+	CLK(NULL,	"dpll3_m3x2_ck", &dpll3_m3x2_ck, CK_3XXX),
+	CLK("etb",	"emu_core_alwon_ck", &emu_core_alwon_ck, CK_3XXX),
+	CLK(NULL,	"dpll4_ck",	&dpll4_ck,	CK_3XXX),
+	CLK(NULL,	"dpll4_x2_ck",	&dpll4_x2_ck,	CK_3XXX),
+	CLK(NULL,	"omap_96m_alwon_fck", &omap_96m_alwon_fck, CK_3XXX),
+	CLK(NULL,	"omap_96m_fck",	&omap_96m_fck,	CK_3XXX),
+	CLK(NULL,	"cm_96m_fck",	&cm_96m_fck,	CK_3XXX),
+	CLK(NULL,	"omap_54m_fck",	&omap_54m_fck,	CK_3XXX),
+	CLK(NULL,	"omap_48m_fck",	&omap_48m_fck,	CK_3XXX),
+	CLK(NULL,	"omap_12m_fck",	&omap_12m_fck,	CK_3XXX),
+	CLK(NULL,	"dpll4_m2_ck",	&dpll4_m2_ck,	CK_3XXX),
+	CLK(NULL,	"dpll4_m2x2_ck", &dpll4_m2x2_ck, CK_3XXX),
+	CLK(NULL,	"dpll4_m3_ck",	&dpll4_m3_ck,	CK_3XXX),
+	CLK(NULL,	"dpll4_m3x2_ck", &dpll4_m3x2_ck, CK_3XXX),
+	CLK(NULL,	"dpll4_m4_ck",	&dpll4_m4_ck,	CK_3XXX),
+	CLK(NULL,	"dpll4_m4x2_ck", &dpll4_m4x2_ck, CK_3XXX),
+	CLK(NULL,	"dpll4_m5_ck",	&dpll4_m5_ck,	CK_3XXX),
+	CLK(NULL,	"dpll4_m5x2_ck", &dpll4_m5x2_ck, CK_3XXX),
+	CLK(NULL,	"dpll4_m6_ck",	&dpll4_m6_ck,	CK_3XXX),
+	CLK(NULL,	"dpll4_m6x2_ck", &dpll4_m6x2_ck, CK_3XXX),
+	CLK("etb",	"emu_per_alwon_ck", &emu_per_alwon_ck, CK_3XXX),
+	CLK(NULL,	"dpll5_ck",	&dpll5_ck,	CK_3430ES2 | CK_AM35XX),
+	CLK(NULL,	"dpll5_m2_ck",	&dpll5_m2_ck,	CK_3430ES2 | CK_AM35XX),
+	CLK(NULL,	"clkout2_src_ck", &clkout2_src_ck, CK_3XXX),
+	CLK(NULL,	"sys_clkout2",	&sys_clkout2,	CK_3XXX),
+	CLK(NULL,	"corex2_fck",	&corex2_fck,	CK_3XXX),
+	CLK(NULL,	"dpll1_fck",	&dpll1_fck,	CK_3XXX),
+	CLK(NULL,	"mpu_ck",	&mpu_ck,	CK_3XXX),
+	CLK(NULL,	"arm_fck",	&arm_fck,	CK_3XXX),
+	CLK("etb",	"emu_mpu_alwon_ck", &emu_mpu_alwon_ck, CK_3XXX),
 	CLK(NULL,	"dpll2_fck",	&dpll2_fck,	CK_343X),
 	CLK(NULL,	"iva2_ck",	&iva2_ck,	CK_343X),
-	CLK(NULL,	"l3_ick",	&l3_ick,	CK_343X),
-	CLK(NULL,	"l4_ick",	&l4_ick,	CK_343X),
-	CLK(NULL,	"rm_ick",	&rm_ick,	CK_343X),
+	CLK(NULL,	"l3_ick",	&l3_ick,	CK_3XXX),
+	CLK(NULL,	"l4_ick",	&l4_ick,	CK_3XXX),
+	CLK(NULL,	"rm_ick",	&rm_ick,	CK_3XXX),
 	CLK(NULL,	"gfx_l3_ck",	&gfx_l3_ck,	CK_3430ES1),
 	CLK(NULL,	"gfx_l3_fck",	&gfx_l3_fck,	CK_3430ES1),
 	CLK(NULL,	"gfx_l3_ick",	&gfx_l3_ick,	CK_3430ES1),
 	CLK(NULL,	"gfx_cg1_ck",	&gfx_cg1_ck,	CK_3430ES1),
 	CLK(NULL,	"gfx_cg2_ck",	&gfx_cg2_ck,	CK_3430ES1),
-	CLK(NULL,	"sgx_fck",	&sgx_fck,	CK_3430ES2),
-	CLK(NULL,	"sgx_ick",	&sgx_ick,	CK_3430ES2),
+	CLK(NULL,	"sgx_fck",	&sgx_fck,	CK_3430ES2 | CK_3517),
+	CLK(NULL,	"sgx_ick",	&sgx_ick,	CK_3430ES2 | CK_3517),
 	CLK(NULL,	"d2d_26m_fck",	&d2d_26m_fck,	CK_3430ES1),
 	CLK(NULL,	"modem_fck",	&modem_fck,	CK_343X),
 	CLK(NULL,	"sad2d_ick",	&sad2d_ick,	CK_343X),
 	CLK(NULL,	"mad2d_ick",	&mad2d_ick,	CK_343X),
-	CLK(NULL,	"gpt10_fck",	&gpt10_fck,	CK_343X),
-	CLK(NULL,	"gpt11_fck",	&gpt11_fck,	CK_343X),
-	CLK(NULL,	"cpefuse_fck",	&cpefuse_fck,	CK_3430ES2),
-	CLK(NULL,	"ts_fck",	&ts_fck,	CK_3430ES2),
-	CLK(NULL,	"usbtll_fck",	&usbtll_fck,	CK_3430ES2),
-	CLK(NULL,	"core_96m_fck",	&core_96m_fck,	CK_343X),
-	CLK("mmci-omap-hs.2",	"fck",	&mmchs3_fck,	CK_3430ES2),
-	CLK("mmci-omap-hs.1",	"fck",	&mmchs2_fck,	CK_343X),
+	CLK(NULL,	"gpt10_fck",	&gpt10_fck,	CK_3XXX),
+	CLK(NULL,	"gpt11_fck",	&gpt11_fck,	CK_3XXX),
+	CLK(NULL,	"cpefuse_fck",	&cpefuse_fck,	CK_3430ES2 | CK_AM35XX),
+	CLK(NULL,	"ts_fck",	&ts_fck,	CK_3430ES2 | CK_AM35XX),
+	CLK(NULL,	"usbtll_fck",	&usbtll_fck,	CK_3430ES2 | CK_AM35XX),
+	CLK(NULL,	"core_96m_fck",	&core_96m_fck,	CK_3XXX),
+	CLK("mmci-omap-hs.2",	"fck",	&mmchs3_fck,	CK_3430ES2 | CK_AM35XX),
+	CLK("mmci-omap-hs.1",	"fck",	&mmchs2_fck,	CK_3XXX),
 	CLK(NULL,	"mspro_fck",	&mspro_fck,	CK_343X),
-	CLK("mmci-omap-hs.0",	"fck",	&mmchs1_fck,	CK_343X),
-	CLK("i2c_omap.3", "fck",	&i2c3_fck,	CK_343X),
-	CLK("i2c_omap.2", "fck",	&i2c2_fck,	CK_343X),
-	CLK("i2c_omap.1", "fck",	&i2c1_fck,	CK_343X),
-	CLK("omap-mcbsp.5", "fck",	&mcbsp5_fck,	CK_343X),
-	CLK("omap-mcbsp.1", "fck",	&mcbsp1_fck,	CK_343X),
-	CLK(NULL,	"core_48m_fck",	&core_48m_fck,	CK_343X),
-	CLK("omap2_mcspi.4", "fck",	&mcspi4_fck,	CK_343X),
-	CLK("omap2_mcspi.3", "fck",	&mcspi3_fck,	CK_343X),
-	CLK("omap2_mcspi.2", "fck",	&mcspi2_fck,	CK_343X),
-	CLK("omap2_mcspi.1", "fck",	&mcspi1_fck,	CK_343X),
-	CLK(NULL,	"uart2_fck",	&uart2_fck,	CK_343X),
-	CLK(NULL,	"uart1_fck",	&uart1_fck,	CK_343X),
+	CLK("mmci-omap-hs.0",	"fck",	&mmchs1_fck,	CK_3XXX),
+	CLK("i2c_omap.3", "fck",	&i2c3_fck,	CK_3XXX),
+	CLK("i2c_omap.2", "fck",	&i2c2_fck,	CK_3XXX),
+	CLK("i2c_omap.1", "fck",	&i2c1_fck,	CK_3XXX),
+	CLK("omap-mcbsp.5", "fck",	&mcbsp5_fck,	CK_3XXX),
+	CLK("omap-mcbsp.1", "fck",	&mcbsp1_fck,	CK_3XXX),
+	CLK(NULL,	"core_48m_fck",	&core_48m_fck,	CK_3XXX),
+	CLK("omap2_mcspi.4", "fck",	&mcspi4_fck,	CK_3XXX),
+	CLK("omap2_mcspi.3", "fck",	&mcspi3_fck,	CK_3XXX),
+	CLK("omap2_mcspi.2", "fck",	&mcspi2_fck,	CK_3XXX),
+	CLK("omap2_mcspi.1", "fck",	&mcspi1_fck,	CK_3XXX),
+	CLK(NULL,	"uart2_fck",	&uart2_fck,	CK_3XXX),
+	CLK(NULL,	"uart1_fck",	&uart1_fck,	CK_3XXX),
 	CLK(NULL,	"fshostusb_fck", &fshostusb_fck, CK_3430ES1),
-	CLK(NULL,	"core_12m_fck",	&core_12m_fck,	CK_343X),
-	CLK("omap_hdq.0", "fck",	&hdq_fck,	CK_343X),
+	CLK(NULL,	"core_12m_fck",	&core_12m_fck,	CK_3XXX),
+	CLK("omap_hdq.0", "fck",	&hdq_fck,	CK_3XXX),
 	CLK(NULL,	"ssi_ssr_fck",	&ssi_ssr_fck_3430es1,	CK_3430ES1),
 	CLK(NULL,	"ssi_ssr_fck",	&ssi_ssr_fck_3430es2,	CK_3430ES2),
 	CLK(NULL,	"ssi_sst_fck",	&ssi_sst_fck_3430es1,	CK_3430ES1),
 	CLK(NULL,	"ssi_sst_fck",	&ssi_sst_fck_3430es2,	CK_3430ES2),
-	CLK(NULL,	"core_l3_ick",	&core_l3_ick,	CK_343X),
+	CLK(NULL,	"core_l3_ick",	&core_l3_ick,	CK_3XXX),
 	CLK("musb_hdrc",	"ick",	&hsotgusb_ick_3430es1,	CK_3430ES1),
 	CLK("musb_hdrc",	"ick",	&hsotgusb_ick_3430es2,	CK_3430ES2),
-	CLK(NULL,	"sdrc_ick",	&sdrc_ick,	CK_343X),
-	CLK(NULL,	"gpmc_fck",	&gpmc_fck,	CK_343X),
+	CLK(NULL,	"sdrc_ick",	&sdrc_ick,	CK_3XXX),
+	CLK(NULL,	"gpmc_fck",	&gpmc_fck,	CK_3XXX),
 	CLK(NULL,	"security_l3_ick", &security_l3_ick, CK_343X),
 	CLK(NULL,	"pka_ick",	&pka_ick,	CK_343X),
-	CLK(NULL,	"core_l4_ick",	&core_l4_ick,	CK_343X),
-	CLK(NULL,	"usbtll_ick",	&usbtll_ick,	CK_3430ES2),
-	CLK("mmci-omap-hs.2",	"ick",	&mmchs3_ick,	CK_3430ES2),
+	CLK(NULL,	"core_l4_ick",	&core_l4_ick,	CK_3XXX),
+	CLK(NULL,	"usbtll_ick",	&usbtll_ick,	CK_3430ES2 | CK_AM35XX),
+	CLK("mmci-omap-hs.2",	"ick",	&mmchs3_ick,	CK_3430ES2 | CK_AM35XX),
 	CLK(NULL,	"icr_ick",	&icr_ick,	CK_343X),
 	CLK(NULL,	"aes2_ick",	&aes2_ick,	CK_343X),
 	CLK(NULL,	"sha12_ick",	&sha12_ick,	CK_343X),
 	CLK(NULL,	"des2_ick",	&des2_ick,	CK_343X),
-	CLK("mmci-omap-hs.1",	"ick",	&mmchs2_ick,	CK_343X),
-	CLK("mmci-omap-hs.0",	"ick",	&mmchs1_ick,	CK_343X),
+	CLK("mmci-omap-hs.1",	"ick",	&mmchs2_ick,	CK_3XXX),
+	CLK("mmci-omap-hs.0",	"ick",	&mmchs1_ick,	CK_3XXX),
 	CLK(NULL,	"mspro_ick",	&mspro_ick,	CK_343X),
-	CLK("omap_hdq.0", "ick",	&hdq_ick,	CK_343X),
-	CLK("omap2_mcspi.4", "ick",	&mcspi4_ick,	CK_343X),
-	CLK("omap2_mcspi.3", "ick",	&mcspi3_ick,	CK_343X),
-	CLK("omap2_mcspi.2", "ick",	&mcspi2_ick,	CK_343X),
-	CLK("omap2_mcspi.1", "ick",	&mcspi1_ick,	CK_343X),
-	CLK("i2c_omap.3", "ick",	&i2c3_ick,	CK_343X),
-	CLK("i2c_omap.2", "ick",	&i2c2_ick,	CK_343X),
-	CLK("i2c_omap.1", "ick",	&i2c1_ick,	CK_343X),
-	CLK(NULL,	"uart2_ick",	&uart2_ick,	CK_343X),
-	CLK(NULL,	"uart1_ick",	&uart1_ick,	CK_343X),
-	CLK(NULL,	"gpt11_ick",	&gpt11_ick,	CK_343X),
-	CLK(NULL,	"gpt10_ick",	&gpt10_ick,	CK_343X),
-	CLK("omap-mcbsp.5", "ick",	&mcbsp5_ick,	CK_343X),
-	CLK("omap-mcbsp.1", "ick",	&mcbsp1_ick,	CK_343X),
+	CLK("omap_hdq.0", "ick",	&hdq_ick,	CK_3XXX),
+	CLK("omap2_mcspi.4", "ick",	&mcspi4_ick,	CK_3XXX),
+	CLK("omap2_mcspi.3", "ick",	&mcspi3_ick,	CK_3XXX),
+	CLK("omap2_mcspi.2", "ick",	&mcspi2_ick,	CK_3XXX),
+	CLK("omap2_mcspi.1", "ick",	&mcspi1_ick,	CK_3XXX),
+	CLK("i2c_omap.3", "ick",	&i2c3_ick,	CK_3XXX),
+	CLK("i2c_omap.2", "ick",	&i2c2_ick,	CK_3XXX),
+	CLK("i2c_omap.1", "ick",	&i2c1_ick,	CK_3XXX),
+	CLK(NULL,	"uart2_ick",	&uart2_ick,	CK_3XXX),
+	CLK(NULL,	"uart1_ick",	&uart1_ick,	CK_3XXX),
+	CLK(NULL,	"gpt11_ick",	&gpt11_ick,	CK_3XXX),
+	CLK(NULL,	"gpt10_ick",	&gpt10_ick,	CK_3XXX),
+	CLK("omap-mcbsp.5", "ick",	&mcbsp5_ick,	CK_3XXX),
+	CLK("omap-mcbsp.1", "ick",	&mcbsp1_ick,	CK_3XXX),
 	CLK(NULL,	"fac_ick",	&fac_ick,	CK_3430ES1),
 	CLK(NULL,	"mailboxes_ick", &mailboxes_ick, CK_343X),
-	CLK(NULL,	"omapctrl_ick",	&omapctrl_ick,	CK_343X),
+	CLK(NULL,	"omapctrl_ick",	&omapctrl_ick,	CK_3XXX),
 	CLK(NULL,	"ssi_l4_ick",	&ssi_l4_ick,	CK_343X),
 	CLK(NULL,	"ssi_ick",	&ssi_ick_3430es1,	CK_3430ES1),
 	CLK(NULL,	"ssi_ick",	&ssi_ick_3430es2,	CK_3430ES2),
@@ -3131,96 +3132,100 @@ static struct omap_clk omap34xx_clks[] = {
 	CLK(NULL,	"sha11_ick",	&sha11_ick,	CK_343X),
 	CLK(NULL,	"des1_ick",	&des1_ick,	CK_343X),
 	CLK("omapdss",	"dss1_fck",	&dss1_alwon_fck_3430es1, CK_3430ES1),
-	CLK("omapdss",	"dss1_fck",	&dss1_alwon_fck_3430es2, CK_3430ES2),
-	CLK("omapdss",	"tv_fck",	&dss_tv_fck,	CK_343X),
-	CLK("omapdss",	"video_fck",	&dss_96m_fck,	CK_343X),
-	CLK("omapdss",	"dss2_fck",	&dss2_alwon_fck, CK_343X),
+	CLK("omapdss",	"dss1_fck",	&dss1_alwon_fck_3430es2, CK_3430ES2 | CK_AM35XX),
+	CLK("omapdss",	"tv_fck",	&dss_tv_fck,	CK_3XXX),
+	CLK("omapdss",	"video_fck",	&dss_96m_fck,	CK_3XXX),
+	CLK("omapdss",	"dss2_fck",	&dss2_alwon_fck, CK_3XXX),
 	CLK("omapdss",	"ick",		&dss_ick_3430es1,	CK_3430ES1),
-	CLK("omapdss",	"ick",		&dss_ick_3430es2,	CK_3430ES2),
+	CLK("omapdss",	"ick",		&dss_ick_3430es2,	CK_3430ES2 | CK_AM35XX),
 	CLK(NULL,	"cam_mclk",	&cam_mclk,	CK_343X),
 	CLK(NULL,	"cam_ick",	&cam_ick,	CK_343X),
 	CLK(NULL,	"csi2_96m_fck",	&csi2_96m_fck,	CK_343X),
-	CLK(NULL,	"usbhost_120m_fck", &usbhost_120m_fck, CK_3430ES2),
-	CLK(NULL,	"usbhost_48m_fck", &usbhost_48m_fck, CK_3430ES2),
-	CLK(NULL,	"usbhost_ick",	&usbhost_ick,	CK_3430ES2),
+	CLK(NULL,	"usbhost_120m_fck", &usbhost_120m_fck, CK_3430ES2 | CK_AM35XX),
+	CLK(NULL,	"usbhost_48m_fck", &usbhost_48m_fck, CK_3430ES2 | CK_AM35XX),
+	CLK(NULL,	"usbhost_ick",	&usbhost_ick,	CK_3430ES2 | CK_AM35XX),
 	CLK(NULL,	"usim_fck",	&usim_fck,	CK_3430ES2),
-	CLK(NULL,	"gpt1_fck",	&gpt1_fck,	CK_343X),
-	CLK(NULL,	"wkup_32k_fck",	&wkup_32k_fck,	CK_343X),
-	CLK(NULL,	"gpio1_dbck",	&gpio1_dbck,	CK_343X),
-	CLK("omap_wdt",	"fck",		&wdt2_fck,	CK_343X),
+	CLK(NULL,	"gpt1_fck",	&gpt1_fck,	CK_3XXX),
+	CLK(NULL,	"wkup_32k_fck",	&wkup_32k_fck,	CK_3XXX),
+	CLK(NULL,	"gpio1_dbck",	&gpio1_dbck,	CK_3XXX),
+	CLK("omap_wdt",	"fck",		&wdt2_fck,	CK_3XXX),
 	CLK(NULL,	"wkup_l4_ick",	&wkup_l4_ick,	CK_343X),
 	CLK(NULL,	"usim_ick",	&usim_ick,	CK_3430ES2),
-	CLK("omap_wdt",	"ick",		&wdt2_ick,	CK_343X),
-	CLK(NULL,	"wdt1_ick",	&wdt1_ick,	CK_343X),
-	CLK(NULL,	"gpio1_ick",	&gpio1_ick,	CK_343X),
-	CLK(NULL,	"omap_32ksync_ick", &omap_32ksync_ick, CK_343X),
-	CLK(NULL,	"gpt12_ick",	&gpt12_ick,	CK_343X),
-	CLK(NULL,	"gpt1_ick",	&gpt1_ick,	CK_343X),
-	CLK(NULL,	"per_96m_fck",	&per_96m_fck,	CK_343X),
-	CLK(NULL,	"per_48m_fck",	&per_48m_fck,	CK_343X),
-	CLK(NULL,	"uart3_fck",	&uart3_fck,	CK_343X),
-	CLK(NULL,	"gpt2_fck",	&gpt2_fck,	CK_343X),
-	CLK(NULL,	"gpt3_fck",	&gpt3_fck,	CK_343X),
-	CLK(NULL,	"gpt4_fck",	&gpt4_fck,	CK_343X),
-	CLK(NULL,	"gpt5_fck",	&gpt5_fck,	CK_343X),
-	CLK(NULL,	"gpt6_fck",	&gpt6_fck,	CK_343X),
-	CLK(NULL,	"gpt7_fck",	&gpt7_fck,	CK_343X),
-	CLK(NULL,	"gpt8_fck",	&gpt8_fck,	CK_343X),
-	CLK(NULL,	"gpt9_fck",	&gpt9_fck,	CK_343X),
-	CLK(NULL,	"per_32k_alwon_fck", &per_32k_alwon_fck, CK_343X),
-	CLK(NULL,	"gpio6_dbck",	&gpio6_dbck,	CK_343X),
-	CLK(NULL,	"gpio5_dbck",	&gpio5_dbck,	CK_343X),
-	CLK(NULL,	"gpio4_dbck",	&gpio4_dbck,	CK_343X),
-	CLK(NULL,	"gpio3_dbck",	&gpio3_dbck,	CK_343X),
-	CLK(NULL,	"gpio2_dbck",	&gpio2_dbck,	CK_343X),
-	CLK(NULL,	"wdt3_fck",	&wdt3_fck,	CK_343X),
-	CLK(NULL,	"per_l4_ick",	&per_l4_ick,	CK_343X),
-	CLK(NULL,	"gpio6_ick",	&gpio6_ick,	CK_343X),
-	CLK(NULL,	"gpio5_ick",	&gpio5_ick,	CK_343X),
-	CLK(NULL,	"gpio4_ick",	&gpio4_ick,	CK_343X),
-	CLK(NULL,	"gpio3_ick",	&gpio3_ick,	CK_343X),
-	CLK(NULL,	"gpio2_ick",	&gpio2_ick,	CK_343X),
-	CLK(NULL,	"wdt3_ick",	&wdt3_ick,	CK_343X),
-	CLK(NULL,	"uart3_ick",	&uart3_ick,	CK_343X),
-	CLK(NULL,	"gpt9_ick",	&gpt9_ick,	CK_343X),
-	CLK(NULL,	"gpt8_ick",	&gpt8_ick,	CK_343X),
-	CLK(NULL,	"gpt7_ick",	&gpt7_ick,	CK_343X),
-	CLK(NULL,	"gpt6_ick",	&gpt6_ick,	CK_343X),
-	CLK(NULL,	"gpt5_ick",	&gpt5_ick,	CK_343X),
-	CLK(NULL,	"gpt4_ick",	&gpt4_ick,	CK_343X),
-	CLK(NULL,	"gpt3_ick",	&gpt3_ick,	CK_343X),
-	CLK(NULL,	"gpt2_ick",	&gpt2_ick,	CK_343X),
-	CLK("omap-mcbsp.2", "ick",	&mcbsp2_ick,	CK_343X),
-	CLK("omap-mcbsp.3", "ick",	&mcbsp3_ick,	CK_343X),
-	CLK("omap-mcbsp.4", "ick",	&mcbsp4_ick,	CK_343X),
-	CLK("omap-mcbsp.2", "fck",	&mcbsp2_fck,	CK_343X),
-	CLK("omap-mcbsp.3", "fck",	&mcbsp3_fck,	CK_343X),
-	CLK("omap-mcbsp.4", "fck",	&mcbsp4_fck,	CK_343X),
-	CLK("etb",	"emu_src_ck",	&emu_src_ck,	CK_343X),
-	CLK(NULL,	"pclk_fck",	&pclk_fck,	CK_343X),
-	CLK(NULL,	"pclkx2_fck",	&pclkx2_fck,	CK_343X),
-	CLK(NULL,	"atclk_fck",	&atclk_fck,	CK_343X),
-	CLK(NULL,	"traceclk_src_fck", &traceclk_src_fck, CK_343X),
-	CLK(NULL,	"traceclk_fck",	&traceclk_fck,	CK_343X),
+	CLK("omap_wdt",	"ick",		&wdt2_ick,	CK_3XXX),
+	CLK(NULL,	"wdt1_ick",	&wdt1_ick,	CK_3XXX),
+	CLK(NULL,	"gpio1_ick",	&gpio1_ick,	CK_3XXX),
+	CLK(NULL,	"omap_32ksync_ick", &omap_32ksync_ick, CK_3XXX),
+	CLK(NULL,	"gpt12_ick",	&gpt12_ick,	CK_3XXX),
+	CLK(NULL,	"gpt1_ick",	&gpt1_ick,	CK_3XXX),
+	CLK(NULL,	"per_96m_fck",	&per_96m_fck,	CK_3XXX),
+	CLK(NULL,	"per_48m_fck",	&per_48m_fck,	CK_3XXX),
+	CLK(NULL,	"uart3_fck",	&uart3_fck,	CK_3XXX),
+	CLK(NULL,	"gpt2_fck",	&gpt2_fck,	CK_3XXX),
+	CLK(NULL,	"gpt3_fck",	&gpt3_fck,	CK_3XXX),
+	CLK(NULL,	"gpt4_fck",	&gpt4_fck,	CK_3XXX),
+	CLK(NULL,	"gpt5_fck",	&gpt5_fck,	CK_3XXX),
+	CLK(NULL,	"gpt6_fck",	&gpt6_fck,	CK_3XXX),
+	CLK(NULL,	"gpt7_fck",	&gpt7_fck,	CK_3XXX),
+	CLK(NULL,	"gpt8_fck",	&gpt8_fck,	CK_3XXX),
+	CLK(NULL,	"gpt9_fck",	&gpt9_fck,	CK_3XXX),
+	CLK(NULL,	"per_32k_alwon_fck", &per_32k_alwon_fck, CK_3XXX),
+	CLK(NULL,	"gpio6_dbck",	&gpio6_dbck,	CK_3XXX),
+	CLK(NULL,	"gpio5_dbck",	&gpio5_dbck,	CK_3XXX),
+	CLK(NULL,	"gpio4_dbck",	&gpio4_dbck,	CK_3XXX),
+	CLK(NULL,	"gpio3_dbck",	&gpio3_dbck,	CK_3XXX),
+	CLK(NULL,	"gpio2_dbck",	&gpio2_dbck,	CK_3XXX),
+	CLK(NULL,	"wdt3_fck",	&wdt3_fck,	CK_3XXX),
+	CLK(NULL,	"per_l4_ick",	&per_l4_ick,	CK_3XXX),
+	CLK(NULL,	"gpio6_ick",	&gpio6_ick,	CK_3XXX),
+	CLK(NULL,	"gpio5_ick",	&gpio5_ick,	CK_3XXX),
+	CLK(NULL,	"gpio4_ick",	&gpio4_ick,	CK_3XXX),
+	CLK(NULL,	"gpio3_ick",	&gpio3_ick,	CK_3XXX),
+	CLK(NULL,	"gpio2_ick",	&gpio2_ick,	CK_3XXX),
+	CLK(NULL,	"wdt3_ick",	&wdt3_ick,	CK_3XXX),
+	CLK(NULL,	"uart3_ick",	&uart3_ick,	CK_3XXX),
+	CLK(NULL,	"gpt9_ick",	&gpt9_ick,	CK_3XXX),
+	CLK(NULL,	"gpt8_ick",	&gpt8_ick,	CK_3XXX),
+	CLK(NULL,	"gpt7_ick",	&gpt7_ick,	CK_3XXX),
+	CLK(NULL,	"gpt6_ick",	&gpt6_ick,	CK_3XXX),
+	CLK(NULL,	"gpt5_ick",	&gpt5_ick,	CK_3XXX),
+	CLK(NULL,	"gpt4_ick",	&gpt4_ick,	CK_3XXX),
+	CLK(NULL,	"gpt3_ick",	&gpt3_ick,	CK_3XXX),
+	CLK(NULL,	"gpt2_ick",	&gpt2_ick,	CK_3XXX),
+	CLK("omap-mcbsp.2", "ick",	&mcbsp2_ick,	CK_3XXX),
+	CLK("omap-mcbsp.3", "ick",	&mcbsp3_ick,	CK_3XXX),
+	CLK("omap-mcbsp.4", "ick",	&mcbsp4_ick,	CK_3XXX),
+	CLK("omap-mcbsp.2", "fck",	&mcbsp2_fck,	CK_3XXX),
+	CLK("omap-mcbsp.3", "fck",	&mcbsp3_fck,	CK_3XXX),
+	CLK("omap-mcbsp.4", "fck",	&mcbsp4_fck,	CK_3XXX),
+	CLK("etb",	"emu_src_ck",	&emu_src_ck,	CK_3XXX),
+	CLK(NULL,	"pclk_fck",	&pclk_fck,	CK_3XXX),
+	CLK(NULL,	"pclkx2_fck",	&pclkx2_fck,	CK_3XXX),
+	CLK(NULL,	"atclk_fck",	&atclk_fck,	CK_3XXX),
+	CLK(NULL,	"traceclk_src_fck", &traceclk_src_fck, CK_3XXX),
+	CLK(NULL,	"traceclk_fck",	&traceclk_fck,	CK_3XXX),
 	CLK(NULL,	"sr1_fck",	&sr1_fck,	CK_343X),
 	CLK(NULL,	"sr2_fck",	&sr2_fck,	CK_343X),
 	CLK(NULL,	"sr_l4_ick",	&sr_l4_ick,	CK_343X),
-	CLK(NULL,	"secure_32k_fck", &secure_32k_fck, CK_343X),
-	CLK(NULL,	"gpt12_fck",	&gpt12_fck,	CK_343X),
-	CLK(NULL,	"wdt1_fck",	&wdt1_fck,	CK_343X),
+	CLK(NULL,	"secure_32k_fck", &secure_32k_fck, CK_3XXX),
+	CLK(NULL,	"gpt12_fck",	&gpt12_fck,	CK_3XXX),
+	CLK(NULL,	"wdt1_fck",	&wdt1_fck,	CK_3XXX),
 };
 
 
-int __init omap2_clk_init(void)
+int __init omap3xxx_clk_init(void)
 {
-	/* struct prcm_config *prcm; */
 	struct omap_clk *c;
-	/* u32 clkrate; */
-	u32 cpu_clkflg;
-
-	if (cpu_is_omap34xx()) {
+	u32 cpu_clkflg = CK_3XXX;
+
+	if (cpu_is_omap3517()) {
+		cpu_mask = RATE_IN_343X | RATE_IN_3430ES2;
+		cpu_clkflg |= CK_3517;
+	} else if (cpu_is_omap3505()) {
+		cpu_mask = RATE_IN_343X | RATE_IN_3430ES2;
+		cpu_clkflg |= CK_3505;
+	} else if (cpu_is_omap34xx()) {
 		cpu_mask = RATE_IN_343X;
-		cpu_clkflg = CK_343X;
+		cpu_clkflg |= CK_343X;
 
 		/*
 		 * Update this if there are further clock changes between ES2
@@ -3237,31 +3242,16 @@ int __init omap2_clk_init(void)
 
 	clk_init(&omap2_clk_functions);
 
-	for (c = omap34xx_clks; c < omap34xx_clks + ARRAY_SIZE(omap34xx_clks); c++)
+	for (c = omap3xxx_clks; c < omap3xxx_clks + ARRAY_SIZE(omap3xxx_clks); c++)
 		clk_preinit(c->lk.clk);
 
-	for (c = omap34xx_clks; c < omap34xx_clks + ARRAY_SIZE(omap34xx_clks); c++)
+	for (c = omap3xxx_clks; c < omap3xxx_clks + ARRAY_SIZE(omap3xxx_clks); c++)
 		if (c->cpu & cpu_clkflg) {
 			clkdev_add(&c->lk);
 			clk_register(c->lk.clk);
 			omap2_init_clk_clkdm(c->lk.clk);
 		}
 
-	/* REVISIT: Not yet ready for OMAP3 */
-#if 0
-	/* Check the MPU rate set by bootloader */
-	clkrate = omap2_get_dpll_rate_24xx(&dpll_ck);
-	for (prcm = rate_table; prcm->mpu_speed; prcm++) {
-		if (!(prcm->flags & cpu_mask))
-			continue;
-		if (prcm->xtal_speed != sys_ck.rate)
-			continue;
-		if (prcm->dpll_speed <= clkrate)
-			break;
-	}
-	curr_prcm_set = prcm;
-#endif
-
 	recalculate_root_clocks();
 
 	printk(KERN_INFO "Clocking rate (Crystal/Core/MPU): "

arch/arm/mach-omap2/clock44xx.c

@@ -13,21 +13,7 @@
 #include <linux/errno.h>
 #include "clock.h"
 
-struct clk_functions omap2_clk_functions = {
-	.clk_enable		= omap2_clk_enable,
-	.clk_disable		= omap2_clk_disable,
-	.clk_round_rate		= omap2_clk_round_rate,
-	.clk_set_rate		= omap2_clk_set_rate,
-	.clk_set_parent		= omap2_clk_set_parent,
-	.clk_disable_unused	= omap2_clk_disable_unused,
-};
-
 const struct clkops clkops_noncore_dpll_ops = {
 	.enable		= &omap3_noncore_dpll_enable,
 	.disable	= &omap3_noncore_dpll_disable,
 };
-
-void omap2_clk_prepare_for_reboot(void)
-{
-	return;
-}

arch/arm/mach-omap2/clock44xx.h

@@ -10,6 +10,8 @@
 #define OMAP4430_MAX_DPLL_MULT	2048
 #define OMAP4430_MAX_DPLL_DIV	128
 
+int omap4xxx_clk_init(void);
+
 extern const struct clkops clkops_noncore_dpll_ops;
 
 #endif

arch/arm/mach-omap2/clock44xx_data.c

@@ -2726,11 +2726,9 @@ static struct omap_clk omap44xx_clks[] = {
 	CLK(NULL,	"utmi_p2_gfclk_ck",		&utmi_p2_gfclk_ck,	CK_443X),
 };
 
-int __init omap2_clk_init(void)
+int __init omap4xxx_clk_init(void)
 {
-	/* struct prcm_config *prcm; */
 	struct omap_clk *c;
-	/* u32 clkrate; */
 	u32 cpu_clkflg;
 
 	if (cpu_is_omap44xx()) {
@@ -2749,9 +2747,7 @@ int __init omap2_clk_init(void)
 		if (c->cpu & cpu_clkflg) {
 			clkdev_add(&c->lk);
 			clk_register(c->lk.clk);
-			/* TODO
 			omap2_init_clk_clkdm(c->lk.clk);
-			*/
 		}
 
 	recalculate_root_clocks();

arch/arm/mach-omap2/clockdomains.h

@@ -1,16 +1,420 @@
 /*
  * OMAP2/3 clockdomains
  *
- * Copyright (C) 2008 Texas Instruments, Inc.
- * Copyright (C) 2008 Nokia Corporation
+ * Copyright (C) 2008-2009 Texas Instruments, Inc.
+ * Copyright (C) 2008-2010 Nokia Corporation
  *
- * Written by Paul Walmsley
+ * Written by Paul Walmsley and Jouni Högander
+ *
+ * This file contains clockdomains and clockdomain wakeup/sleep
+ * dependencies for the OMAP2/3 chips.  Some notes:
+ *
+ * A useful validation rule for struct clockdomain: Any clockdomain
+ * referenced by a wkdep_srcs or sleepdep_srcs array must have a
+ * dep_bit assigned.  So wkdep_srcs/sleepdep_srcs are really just
+ * software-controllable dependencies.  Non-software-controllable
+ * dependencies do exist, but they are not encoded below (yet).
+ *
+ * 24xx does not support programmable sleep dependencies (SLEEPDEP)
+ *
+ * The overly-specific dep_bit names are due to a bit name collision
+ * with CM_FCLKEN_{DSP,IVA2}.  The DSP/IVA2 PM_WKDEP and CM_SLEEPDEP shift
+ * value are the same for all powerdomains: 2
+ *
+ * XXX should dep_bit be a mask, so we can test to see if it is 0 as a
+ * sanity check?
+ * XXX encode hardware fixed wakeup dependencies -- esp. for 3430 CORE
+ */
+
+/*
+ * To-Do List
+ * -> Port the Sleep/Wakeup dependencies for the domains
+ *    from the Power domain framework
  */
 
 #ifndef __ARCH_ARM_MACH_OMAP2_CLOCKDOMAINS_H
 #define __ARCH_ARM_MACH_OMAP2_CLOCKDOMAINS_H
 
 #include <plat/clockdomain.h>
+#include "cm.h"
+#include "prm.h"
+
+/*
+ * Clockdomain dependencies for wkdeps/sleepdeps
+ *
+ * XXX Hardware dependencies (e.g., dependencies that cannot be
+ * changed in software) are not included here yet, but should be.
+ */
+
+/* OMAP2/3-common wakeup dependencies */
+
+/*
+ * 2420/2430 PM_WKDEP_GFX: CORE, MPU, WKUP
+ * 3430ES1 PM_WKDEP_GFX: adds IVA2, removes CORE
+ * 3430ES2 PM_WKDEP_SGX: adds IVA2, removes CORE
+ * These can share data since they will never be present simultaneously
+ * on the same device.
+ */
+static struct clkdm_dep gfx_sgx_wkdeps[] = {
+	{
+		.clkdm_name = "core_l3_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+	},
+	{
+		.clkdm_name = "core_l4_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+	},
+	{
+		.clkdm_name = "iva2_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{
+		.clkdm_name = "mpu_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX |
+					    CHIP_IS_OMAP3430)
+	},
+	{
+		.clkdm_name = "wkup_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX |
+					    CHIP_IS_OMAP3430)
+	},
+	{ NULL },
+};
+
+
+/* 24XX-specific possible dependencies */
+
+#ifdef CONFIG_ARCH_OMAP24XX
+
+/* Wakeup dependency source arrays */
+
+/* 2420/2430 PM_WKDEP_DSP: CORE, MPU, WKUP */
+static struct clkdm_dep dsp_24xx_wkdeps[] = {
+	{
+		.clkdm_name = "core_l3_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+	},
+	{
+		.clkdm_name = "core_l4_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+	},
+	{
+		.clkdm_name = "mpu_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+	},
+	{
+		.clkdm_name = "wkup_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+	},
+	{ NULL },
+};
+
+/*
+ * 2420 PM_WKDEP_MPU: CORE, DSP, WKUP
+ * 2430 adds MDM
+ */
+static struct clkdm_dep mpu_24xx_wkdeps[] = {
+	{
+		.clkdm_name = "core_l3_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+	},
+	{
+		.clkdm_name = "core_l4_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+	},
+	{
+		.clkdm_name = "dsp_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+	},
+	{
+		.clkdm_name = "wkup_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+	},
+	{
+		.clkdm_name = "mdm_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430)
+	},
+	{ NULL },
+};
+
+/*
+ * 2420 PM_WKDEP_CORE: DSP, GFX, MPU, WKUP
+ * 2430 adds MDM
+ */
+static struct clkdm_dep core_24xx_wkdeps[] = {
+	{
+		.clkdm_name = "dsp_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+	},
+	{
+		.clkdm_name = "gfx_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+	},
+	{
+		.clkdm_name = "mpu_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+	},
+	{
+		.clkdm_name = "wkup_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+	},
+	{
+		.clkdm_name = "mdm_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430)
+	},
+	{ NULL },
+};
+
+#endif
+
+
+/* 2430-specific possible wakeup dependencies */
+
+#ifdef CONFIG_ARCH_OMAP2430
+
+/* 2430 PM_WKDEP_MDM: CORE, MPU, WKUP */
+static struct clkdm_dep mdm_2430_wkdeps[] = {
+	{
+		.clkdm_name = "core_l3_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+	},
+	{
+		.clkdm_name = "core_l4_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+	},
+	{
+		.clkdm_name = "mpu_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+	},
+	{
+		.clkdm_name = "wkup_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+	},
+	{ NULL },
+};
+
+#endif /* CONFIG_ARCH_OMAP2430 */
+
+
+/* OMAP3-specific possible dependencies */
+
+#ifdef CONFIG_ARCH_OMAP3
+
+/* 3430: PM_WKDEP_PER: CORE, IVA2, MPU, WKUP */
+static struct clkdm_dep per_wkdeps[] = {
+	{
+		.clkdm_name = "core_l3_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{
+		.clkdm_name = "core_l4_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{
+		.clkdm_name = "iva2_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{
+		.clkdm_name = "mpu_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{
+		.clkdm_name = "wkup_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{ NULL },
+};
+
+/* 3430ES2: PM_WKDEP_USBHOST: CORE, IVA2, MPU, WKUP */
+static struct clkdm_dep usbhost_wkdeps[] = {
+	{
+		.clkdm_name = "core_l3_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{
+		.clkdm_name = "core_l4_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{
+		.clkdm_name = "iva2_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{
+		.clkdm_name = "mpu_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{
+		.clkdm_name = "wkup_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{ NULL },
+};
+
+/* 3430 PM_WKDEP_MPU: CORE, IVA2, DSS, PER */
+static struct clkdm_dep mpu_3xxx_wkdeps[] = {
+	{
+		.clkdm_name = "core_l3_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{
+		.clkdm_name = "core_l4_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{
+		.clkdm_name = "iva2_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{
+		.clkdm_name = "dss_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{
+		.clkdm_name = "per_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{ NULL },
+};
+
+/* 3430 PM_WKDEP_IVA2: CORE, MPU, WKUP, DSS, PER */
+static struct clkdm_dep iva2_wkdeps[] = {
+	{
+		.clkdm_name = "core_l3_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{
+		.clkdm_name = "core_l4_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{
+		.clkdm_name = "mpu_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{
+		.clkdm_name = "wkup_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{
+		.clkdm_name = "dss_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{
+		.clkdm_name = "per_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{ NULL },
+};
+
+
+/* 3430 PM_WKDEP_CAM: IVA2, MPU, WKUP */
+static struct clkdm_dep cam_wkdeps[] = {
+	{
+		.clkdm_name = "iva2_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{
+		.clkdm_name = "mpu_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{
+		.clkdm_name = "wkup_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{ NULL },
+};
+
+/* 3430 PM_WKDEP_DSS: IVA2, MPU, WKUP */
+static struct clkdm_dep dss_wkdeps[] = {
+	{
+		.clkdm_name = "iva2_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{
+		.clkdm_name = "mpu_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{
+		.clkdm_name = "wkup_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{ NULL },
+};
+
+/* 3430: PM_WKDEP_NEON: MPU */
+static struct clkdm_dep neon_wkdeps[] = {
+	{
+		.clkdm_name = "mpu_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{ NULL },
+};
+
+
+/* Sleep dependency source arrays for OMAP3-specific clkdms */
+
+/* 3430: CM_SLEEPDEP_DSS: MPU, IVA */
+static struct clkdm_dep dss_sleepdeps[] = {
+	{
+		.clkdm_name = "mpu_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{
+		.clkdm_name = "iva2_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{ NULL },
+};
+
+/* 3430: CM_SLEEPDEP_PER: MPU, IVA */
+static struct clkdm_dep per_sleepdeps[] = {
+	{
+		.clkdm_name = "mpu_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{
+		.clkdm_name = "iva2_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{ NULL },
+};
+
+/* 3430ES2: CM_SLEEPDEP_USBHOST: MPU, IVA */
+static struct clkdm_dep usbhost_sleepdeps[] = {
+	{
+		.clkdm_name = "mpu_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{
+		.clkdm_name = "iva2_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{ NULL },
+};
+
+/* 3430: CM_SLEEPDEP_CAM: MPU */
+static struct clkdm_dep cam_sleepdeps[] = {
+	{
+		.clkdm_name = "mpu_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{ NULL },
+};
+
+/*
+ * 3430ES1: CM_SLEEPDEP_GFX: MPU
+ * 3430ES2: CM_SLEEPDEP_SGX: MPU
+ * These can share data since they will never be present simultaneously
+ * on the same device.
+ */
+static struct clkdm_dep gfx_sgx_sleepdeps[] = {
+	{
+		.clkdm_name = "mpu_clkdm",
+		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+	},
+	{ NULL },
+};
+
+#endif /* CONFIG_ARCH_OMAP3 */
+
 
 /*
  * OMAP2/3-common clockdomains
@@ -21,10 +425,13 @@
  * sys_clkout/sys_clkout2.
  */
 
+#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
+
 /* This is an implicit clockdomain - it is never defined as such in TRM */
 static struct clockdomain wkup_clkdm = {
 	.name		= "wkup_clkdm",
 	.pwrdm		= { .name = "wkup_pwrdm" },
+	.dep_bit	= OMAP_EN_WKUP_SHIFT,
 	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP24XX | CHIP_IS_OMAP3430),
 };
 
@@ -40,6 +447,8 @@ static struct clockdomain cm_clkdm = {
 	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP24XX | CHIP_IS_OMAP3430),
 };
 
+#endif
+
 /*
  * 2420-only clockdomains
  */
@@ -50,6 +459,8 @@ static struct clockdomain mpu_2420_clkdm = {
 	.name		= "mpu_clkdm",
 	.pwrdm		= { .name = "mpu_pwrdm" },
 	.flags		= CLKDM_CAN_HWSUP,
+	.clkstctrl_reg  = OMAP2420_CM_REGADDR(MPU_MOD, OMAP2_CM_CLKSTCTRL),
+	.wkdep_srcs	= mpu_24xx_wkdeps,
 	.clktrctrl_mask = OMAP24XX_AUTOSTATE_MPU_MASK,
 	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP2420),
 };
@@ -58,11 +469,64 @@ static struct clockdomain iva1_2420_clkdm = {
 	.name		= "iva1_clkdm",
 	.pwrdm		= { .name = "dsp_pwrdm" },
 	.flags		= CLKDM_CAN_HWSUP_SWSUP,
+	.clkstctrl_reg  = OMAP2420_CM_REGADDR(OMAP24XX_DSP_MOD,
+						 OMAP2_CM_CLKSTCTRL),
+	.dep_bit	= OMAP24XX_PM_WKDEP_MPU_EN_DSP_SHIFT,
+	.wkdep_srcs	= dsp_24xx_wkdeps,
 	.clktrctrl_mask = OMAP2420_AUTOSTATE_IVA_MASK,
 	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP2420),
 };
 
-#endif  /* CONFIG_ARCH_OMAP2420 */
+static struct clockdomain dsp_2420_clkdm = {
+	.name		= "dsp_clkdm",
+	.pwrdm		= { .name = "dsp_pwrdm" },
+	.flags		= CLKDM_CAN_HWSUP_SWSUP,
+	.clkstctrl_reg  = OMAP2420_CM_REGADDR(OMAP24XX_DSP_MOD,
+						 OMAP2_CM_CLKSTCTRL),
+	.clktrctrl_mask = OMAP24XX_AUTOSTATE_DSP_MASK,
+	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP2420),
+};
+
+static struct clockdomain gfx_2420_clkdm = {
+	.name		= "gfx_clkdm",
+	.pwrdm		= { .name = "gfx_pwrdm" },
+	.flags		= CLKDM_CAN_HWSUP_SWSUP,
+	.clkstctrl_reg  = OMAP2420_CM_REGADDR(GFX_MOD, OMAP2_CM_CLKSTCTRL),
+	.wkdep_srcs	= gfx_sgx_wkdeps,
+	.clktrctrl_mask = OMAP24XX_AUTOSTATE_GFX_MASK,
+	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP2420),
+};
+
+static struct clockdomain core_l3_2420_clkdm = {
+	.name		= "core_l3_clkdm",
+	.pwrdm		= { .name = "core_pwrdm" },
+	.flags		= CLKDM_CAN_HWSUP,
+	.clkstctrl_reg  = OMAP2420_CM_REGADDR(CORE_MOD, OMAP2_CM_CLKSTCTRL),
+	.wkdep_srcs	= core_24xx_wkdeps,
+	.clktrctrl_mask = OMAP24XX_AUTOSTATE_L3_MASK,
+	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP2420),
+};
+
+static struct clockdomain core_l4_2420_clkdm = {
+	.name		= "core_l4_clkdm",
+	.pwrdm		= { .name = "core_pwrdm" },
+	.flags		= CLKDM_CAN_HWSUP,
+	.clkstctrl_reg  = OMAP2420_CM_REGADDR(CORE_MOD, OMAP2_CM_CLKSTCTRL),
+	.wkdep_srcs	= core_24xx_wkdeps,
+	.clktrctrl_mask = OMAP24XX_AUTOSTATE_L4_MASK,
+	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP2420),
+};
+
+static struct clockdomain dss_2420_clkdm = {
+	.name		= "dss_clkdm",
+	.pwrdm		= { .name = "core_pwrdm" },
+	.flags		= CLKDM_CAN_HWSUP,
+	.clkstctrl_reg  = OMAP2420_CM_REGADDR(CORE_MOD, OMAP2_CM_CLKSTCTRL),
+	.clktrctrl_mask = OMAP24XX_AUTOSTATE_DSS_MASK,
+	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP2420),
+};
+
+#endif   /* CONFIG_ARCH_OMAP2420 */
 
 
 /*
@@ -75,80 +539,105 @@ static struct clockdomain mpu_2430_clkdm = {
 	.name		= "mpu_clkdm",
 	.pwrdm		= { .name = "mpu_pwrdm" },
 	.flags		= CLKDM_CAN_HWSUP_SWSUP,
+	.clkstctrl_reg  = OMAP2430_CM_REGADDR(MPU_MOD,
+						 OMAP2_CM_CLKSTCTRL),
+	.wkdep_srcs	= mpu_24xx_wkdeps,
 	.clktrctrl_mask = OMAP24XX_AUTOSTATE_MPU_MASK,
 	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP2430),
 };
 
+/* Another case of bit name collisions between several registers: EN_MDM */
 static struct clockdomain mdm_clkdm = {
 	.name		= "mdm_clkdm",
 	.pwrdm		= { .name = "mdm_pwrdm" },
 	.flags		= CLKDM_CAN_HWSUP_SWSUP,
+	.clkstctrl_reg  = OMAP2430_CM_REGADDR(OMAP2430_MDM_MOD,
+						 OMAP2_CM_CLKSTCTRL),
+	.dep_bit	= OMAP2430_PM_WKDEP_MPU_EN_MDM_SHIFT,
+	.wkdep_srcs	= mdm_2430_wkdeps,
 	.clktrctrl_mask = OMAP2430_AUTOSTATE_MDM_MASK,
 	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP2430),
 };
 
-#endif    /* CONFIG_ARCH_OMAP2430 */
-
-
-/*
- * 24XX-only clockdomains
- */
-
-#if defined(CONFIG_ARCH_OMAP24XX)
-
-static struct clockdomain dsp_clkdm = {
+static struct clockdomain dsp_2430_clkdm = {
 	.name		= "dsp_clkdm",
 	.pwrdm		= { .name = "dsp_pwrdm" },
 	.flags		= CLKDM_CAN_HWSUP_SWSUP,
+	.clkstctrl_reg  = OMAP2430_CM_REGADDR(OMAP24XX_DSP_MOD,
+						 OMAP2_CM_CLKSTCTRL),
+	.dep_bit	= OMAP24XX_PM_WKDEP_MPU_EN_DSP_SHIFT,
+	.wkdep_srcs	= dsp_24xx_wkdeps,
 	.clktrctrl_mask = OMAP24XX_AUTOSTATE_DSP_MASK,
-	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP24XX),
+	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP2430),
 };
 
-static struct clockdomain gfx_24xx_clkdm = {
+static struct clockdomain gfx_2430_clkdm = {
 	.name		= "gfx_clkdm",
 	.pwrdm		= { .name = "gfx_pwrdm" },
 	.flags		= CLKDM_CAN_HWSUP_SWSUP,
+	.clkstctrl_reg  = OMAP2430_CM_REGADDR(GFX_MOD, OMAP2_CM_CLKSTCTRL),
+	.wkdep_srcs	= gfx_sgx_wkdeps,
 	.clktrctrl_mask = OMAP24XX_AUTOSTATE_GFX_MASK,
-	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP24XX),
+	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP2430),
 };
 
-static struct clockdomain core_l3_24xx_clkdm = {
+/*
+ * XXX add usecounting for clkdm dependencies, otherwise the presence
+ * of a single dep bit for core_l3_24xx_clkdm and core_l4_24xx_clkdm
+ * could cause trouble
+ */
+static struct clockdomain core_l3_2430_clkdm = {
 	.name		= "core_l3_clkdm",
 	.pwrdm		= { .name = "core_pwrdm" },
 	.flags		= CLKDM_CAN_HWSUP,
+	.clkstctrl_reg  = OMAP2430_CM_REGADDR(CORE_MOD, OMAP2_CM_CLKSTCTRL),
+	.dep_bit	= OMAP24XX_EN_CORE_SHIFT,
+	.wkdep_srcs	= core_24xx_wkdeps,
 	.clktrctrl_mask = OMAP24XX_AUTOSTATE_L3_MASK,
-	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP24XX),
+	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP2430),
 };
 
-static struct clockdomain core_l4_24xx_clkdm = {
+/*
+ * XXX add usecounting for clkdm dependencies, otherwise the presence
+ * of a single dep bit for core_l3_24xx_clkdm and core_l4_24xx_clkdm
+ * could cause trouble
+ */
+static struct clockdomain core_l4_2430_clkdm = {
 	.name		= "core_l4_clkdm",
 	.pwrdm		= { .name = "core_pwrdm" },
 	.flags		= CLKDM_CAN_HWSUP,
+	.clkstctrl_reg  = OMAP2430_CM_REGADDR(CORE_MOD, OMAP2_CM_CLKSTCTRL),
+	.dep_bit	= OMAP24XX_EN_CORE_SHIFT,
+	.wkdep_srcs	= core_24xx_wkdeps,
 	.clktrctrl_mask = OMAP24XX_AUTOSTATE_L4_MASK,
-	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP24XX),
+	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP2430),
 };
 
-static struct clockdomain dss_24xx_clkdm = {
+static struct clockdomain dss_2430_clkdm = {
 	.name		= "dss_clkdm",
 	.pwrdm		= { .name = "core_pwrdm" },
 	.flags		= CLKDM_CAN_HWSUP,
+	.clkstctrl_reg  = OMAP2430_CM_REGADDR(CORE_MOD, OMAP2_CM_CLKSTCTRL),
 	.clktrctrl_mask = OMAP24XX_AUTOSTATE_DSS_MASK,
-	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP24XX),
+	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP2430),
 };
 
-#endif   /* CONFIG_ARCH_OMAP24XX */
+#endif    /* CONFIG_ARCH_OMAP2430 */
 
 
 /*
- * 34xx clockdomains
+ * OMAP3 clockdomains
  */
 
-#if defined(CONFIG_ARCH_OMAP34XX)
+#if defined(CONFIG_ARCH_OMAP3)
 
-static struct clockdomain mpu_34xx_clkdm = {
+static struct clockdomain mpu_3xxx_clkdm = {
 	.name		= "mpu_clkdm",
 	.pwrdm		= { .name = "mpu_pwrdm" },
 	.flags		= CLKDM_CAN_HWSUP | CLKDM_CAN_FORCE_WAKEUP,
+	.clkstctrl_reg	= OMAP34XX_CM_REGADDR(MPU_MOD, OMAP2_CM_CLKSTCTRL),
+	.dep_bit	= OMAP3430_EN_MPU_SHIFT,
+	.wkdep_srcs	= mpu_3xxx_wkdeps,
 	.clktrctrl_mask = OMAP3430_CLKTRCTRL_MPU_MASK,
 	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
 };
@@ -157,6 +646,9 @@ static struct clockdomain neon_clkdm = {
 	.name		= "neon_clkdm",
 	.pwrdm		= { .name = "neon_pwrdm" },
 	.flags		= CLKDM_CAN_HWSUP_SWSUP,
+	.clkstctrl_reg	= OMAP34XX_CM_REGADDR(OMAP3430_NEON_MOD,
+						 OMAP2_CM_CLKSTCTRL),
+	.wkdep_srcs	= neon_wkdeps,
 	.clktrctrl_mask = OMAP3430_CLKTRCTRL_NEON_MASK,
 	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
 };
@@ -165,6 +657,10 @@ static struct clockdomain iva2_clkdm = {
 	.name		= "iva2_clkdm",
 	.pwrdm		= { .name = "iva2_pwrdm" },
 	.flags		= CLKDM_CAN_HWSUP_SWSUP,
+	.clkstctrl_reg	= OMAP34XX_CM_REGADDR(OMAP3430_IVA2_MOD,
+						 OMAP2_CM_CLKSTCTRL),
+	.dep_bit	= OMAP3430_PM_WKDEP_MPU_EN_IVA2_SHIFT,
+	.wkdep_srcs	= iva2_wkdeps,
 	.clktrctrl_mask = OMAP3430_CLKTRCTRL_IVA2_MASK,
 	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
 };
@@ -173,6 +669,9 @@ static struct clockdomain gfx_3430es1_clkdm = {
 	.name		= "gfx_clkdm",
 	.pwrdm		= { .name = "gfx_pwrdm" },
 	.flags		= CLKDM_CAN_HWSUP_SWSUP,
+	.clkstctrl_reg	= OMAP34XX_CM_REGADDR(GFX_MOD, OMAP2_CM_CLKSTCTRL),
+	.wkdep_srcs	= gfx_sgx_wkdeps,
+	.sleepdep_srcs	= gfx_sgx_sleepdeps,
 	.clktrctrl_mask = OMAP3430ES1_CLKTRCTRL_GFX_MASK,
 	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP3430ES1),
 };
@@ -181,6 +680,10 @@ static struct clockdomain sgx_clkdm = {
 	.name		= "sgx_clkdm",
 	.pwrdm		= { .name = "sgx_pwrdm" },
 	.flags		= CLKDM_CAN_HWSUP_SWSUP,
+	.clkstctrl_reg	= OMAP34XX_CM_REGADDR(OMAP3430ES2_SGX_MOD,
+						 OMAP2_CM_CLKSTCTRL),
+	.wkdep_srcs	= gfx_sgx_wkdeps,
+	.sleepdep_srcs	= gfx_sgx_sleepdeps,
 	.clktrctrl_mask = OMAP3430ES2_CLKTRCTRL_SGX_MASK,
 	.omap_chip	= OMAP_CHIP_INIT(CHIP_GE_OMAP3430ES2),
 };
@@ -196,30 +699,51 @@ static struct clockdomain d2d_clkdm = {
 	.name		= "d2d_clkdm",
 	.pwrdm		= { .name = "core_pwrdm" },
 	.flags		= CLKDM_CAN_HWSUP_SWSUP,
+	.clkstctrl_reg	= OMAP34XX_CM_REGADDR(CORE_MOD, OMAP2_CM_CLKSTCTRL),
 	.clktrctrl_mask = OMAP3430ES1_CLKTRCTRL_D2D_MASK,
 	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
 };
 
-static struct clockdomain core_l3_34xx_clkdm = {
+/*
+ * XXX add usecounting for clkdm dependencies, otherwise the presence
+ * of a single dep bit for core_l3_3xxx_clkdm and core_l4_3xxx_clkdm
+ * could cause trouble
+ */
+static struct clockdomain core_l3_3xxx_clkdm = {
 	.name		= "core_l3_clkdm",
 	.pwrdm		= { .name = "core_pwrdm" },
 	.flags		= CLKDM_CAN_HWSUP,
+	.clkstctrl_reg	= OMAP34XX_CM_REGADDR(CORE_MOD, OMAP2_CM_CLKSTCTRL),
+	.dep_bit	= OMAP3430_EN_CORE_SHIFT,
 	.clktrctrl_mask = OMAP3430_CLKTRCTRL_L3_MASK,
 	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
 };
 
-static struct clockdomain core_l4_34xx_clkdm = {
+/*
+ * XXX add usecounting for clkdm dependencies, otherwise the presence
+ * of a single dep bit for core_l3_3xxx_clkdm and core_l4_3xxx_clkdm
+ * could cause trouble
+ */
+static struct clockdomain core_l4_3xxx_clkdm = {
 	.name		= "core_l4_clkdm",
 	.pwrdm		= { .name = "core_pwrdm" },
 	.flags		= CLKDM_CAN_HWSUP,
+	.clkstctrl_reg	= OMAP34XX_CM_REGADDR(CORE_MOD, OMAP2_CM_CLKSTCTRL),
+	.dep_bit	= OMAP3430_EN_CORE_SHIFT,
 	.clktrctrl_mask = OMAP3430_CLKTRCTRL_L4_MASK,
 	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
 };
 
-static struct clockdomain dss_34xx_clkdm = {
+/* Another case of bit name collisions between several registers: EN_DSS */
+static struct clockdomain dss_3xxx_clkdm = {
 	.name		= "dss_clkdm",
 	.pwrdm		= { .name = "dss_pwrdm" },
 	.flags		= CLKDM_CAN_HWSUP_SWSUP,
+	.clkstctrl_reg	= OMAP34XX_CM_REGADDR(OMAP3430_DSS_MOD,
+						 OMAP2_CM_CLKSTCTRL),
+	.dep_bit	= OMAP3430_PM_WKDEP_MPU_EN_DSS_SHIFT,
+	.wkdep_srcs	= dss_wkdeps,
+	.sleepdep_srcs	= dss_sleepdeps,
 	.clktrctrl_mask = OMAP3430_CLKTRCTRL_DSS_MASK,
 	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
 };
@@ -228,6 +752,10 @@ static struct clockdomain cam_clkdm = {
 	.name		= "cam_clkdm",
 	.pwrdm		= { .name = "cam_pwrdm" },
 	.flags		= CLKDM_CAN_HWSUP_SWSUP,
+	.clkstctrl_reg	= OMAP34XX_CM_REGADDR(OMAP3430_CAM_MOD,
+						 OMAP2_CM_CLKSTCTRL),
+	.wkdep_srcs	= cam_wkdeps,
+	.sleepdep_srcs	= cam_sleepdeps,
 	.clktrctrl_mask = OMAP3430_CLKTRCTRL_CAM_MASK,
 	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
 };
@@ -236,6 +764,10 @@ static struct clockdomain usbhost_clkdm = {
 	.name		= "usbhost_clkdm",
 	.pwrdm		= { .name = "usbhost_pwrdm" },
 	.flags		= CLKDM_CAN_HWSUP_SWSUP,
+	.clkstctrl_reg	= OMAP34XX_CM_REGADDR(OMAP3430ES2_USBHOST_MOD,
+						 OMAP2_CM_CLKSTCTRL),
+	.wkdep_srcs	= usbhost_wkdeps,
+	.sleepdep_srcs	= usbhost_sleepdeps,
 	.clktrctrl_mask = OMAP3430ES2_CLKTRCTRL_USBHOST_MASK,
 	.omap_chip	= OMAP_CHIP_INIT(CHIP_GE_OMAP3430ES2),
 };
@@ -244,6 +776,11 @@ static struct clockdomain per_clkdm = {
 	.name		= "per_clkdm",
 	.pwrdm		= { .name = "per_pwrdm" },
 	.flags		= CLKDM_CAN_HWSUP_SWSUP,
+	.clkstctrl_reg	= OMAP34XX_CM_REGADDR(OMAP3430_PER_MOD,
+						 OMAP2_CM_CLKSTCTRL),
+	.dep_bit	= OMAP3430_EN_PER_SHIFT,
+	.wkdep_srcs	= per_wkdeps,
+	.sleepdep_srcs	= per_sleepdeps,
 	.clktrctrl_mask = OMAP3430_CLKTRCTRL_PER_MASK,
 	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
 };
@@ -256,6 +793,8 @@ static struct clockdomain emu_clkdm = {
 	.name		= "emu_clkdm",
 	.pwrdm		= { .name = "emu_pwrdm" },
 	.flags		= /* CLKDM_CAN_ENABLE_AUTO |  */CLKDM_CAN_SWSUP,
+	.clkstctrl_reg	= OMAP34XX_CM_REGADDR(OMAP3430_EMU_MOD,
+						 OMAP2_CM_CLKSTCTRL),
 	.clktrctrl_mask = OMAP3430_CLKTRCTRL_EMU_MASK,
 	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
 };
@@ -290,64 +829,70 @@ static struct clockdomain dpll5_clkdm = {
 	.omap_chip	= OMAP_CHIP_INIT(CHIP_GE_OMAP3430ES2),
 };
 
-#endif   /* CONFIG_ARCH_OMAP34XX */
+#endif   /* CONFIG_ARCH_OMAP3 */
+
+#include "clockdomains44xx.h"
 
 /*
- * Clockdomain-powerdomain hwsup dependencies (34XX only)
+ * Clockdomain hwsup dependencies (OMAP3 only)
  */
 
-static struct clkdm_pwrdm_autodep clkdm_pwrdm_autodeps[] = {
+static struct clkdm_autodep clkdm_autodeps[] = {
 	{
-		.pwrdm	   = { .name = "mpu_pwrdm" },
+		.clkdm	   = { .name = "mpu_clkdm" },
 		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
 	},
 	{
-		.pwrdm	   = { .name = "iva2_pwrdm" },
+		.clkdm	   = { .name = "iva2_clkdm" },
 		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
 	},
 	{
-		.pwrdm	   = { .name = NULL },
+		.clkdm	   = { .name = NULL },
 	}
 };
 
 /*
- *
+ * List of clockdomain pointers per platform
  */
 
 static struct clockdomain *clockdomains_omap[] = {
 
+#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
 	&wkup_clkdm,
 	&cm_clkdm,
 	&prm_clkdm,
+#endif
 
 #ifdef CONFIG_ARCH_OMAP2420
 	&mpu_2420_clkdm,
 	&iva1_2420_clkdm,
+	&dsp_2420_clkdm,
+	&gfx_2420_clkdm,
+	&core_l3_2420_clkdm,
+	&core_l4_2420_clkdm,
+	&dss_2420_clkdm,
 #endif
 
 #ifdef CONFIG_ARCH_OMAP2430
 	&mpu_2430_clkdm,
 	&mdm_clkdm,
+	&dsp_2430_clkdm,
+	&gfx_2430_clkdm,
+	&core_l3_2430_clkdm,
+	&core_l4_2430_clkdm,
+	&dss_2430_clkdm,
 #endif
 
-#ifdef CONFIG_ARCH_OMAP24XX
-	&dsp_clkdm,
-	&gfx_24xx_clkdm,
-	&core_l3_24xx_clkdm,
-	&core_l4_24xx_clkdm,
-	&dss_24xx_clkdm,
-#endif
-
-#ifdef CONFIG_ARCH_OMAP34XX
-	&mpu_34xx_clkdm,
+#ifdef CONFIG_ARCH_OMAP3
+	&mpu_3xxx_clkdm,
 	&neon_clkdm,
 	&iva2_clkdm,
 	&gfx_3430es1_clkdm,
 	&sgx_clkdm,
 	&d2d_clkdm,
-	&core_l3_34xx_clkdm,
-	&core_l4_34xx_clkdm,
-	&dss_34xx_clkdm,
+	&core_l3_3xxx_clkdm,
+	&core_l4_3xxx_clkdm,
+	&dss_3xxx_clkdm,
 	&cam_clkdm,
 	&usbhost_clkdm,
 	&per_clkdm,
@@ -359,6 +904,33 @@ static struct clockdomain *clockdomains_omap[] = {
 	&dpll5_clkdm,
 #endif
 
+#ifdef CONFIG_ARCH_OMAP4
+	&l4_cefuse_44xx_clkdm,
+	&l4_cfg_44xx_clkdm,
+	&tesla_44xx_clkdm,
+	&l3_gfx_44xx_clkdm,
+	&ivahd_44xx_clkdm,
+	&l4_secure_44xx_clkdm,
+	&l4_per_44xx_clkdm,
+	&abe_44xx_clkdm,
+	&l3_instr_44xx_clkdm,
+	&l3_init_44xx_clkdm,
+	&mpuss_44xx_clkdm,
+	&mpu0_44xx_clkdm,
+	&mpu1_44xx_clkdm,
+	&l3_emif_44xx_clkdm,
+	&l4_ao_44xx_clkdm,
+	&ducati_44xx_clkdm,
+	&l3_2_44xx_clkdm,
+	&l3_1_44xx_clkdm,
+	&l3_d2d_44xx_clkdm,
+	&iss_44xx_clkdm,
+	&l3_dss_44xx_clkdm,
+	&l4_wkup_44xx_clkdm,
+	&emu_sys_44xx_clkdm,
+	&l3_dma_44xx_clkdm,
+#endif
+
 	NULL,
 };
 

arch/arm/mach-omap2/clockdomains44xx.h

@@ -0,0 +1,250 @@
+/*
+ * OMAP4 Clock domains framework
+ *
+ * Copyright (C) 2009 Texas Instruments, Inc.
+ * Copyright (C) 2009 Nokia Corporation
+ *
+ * Abhijit Pagare (abhijitpagare@ti.com)
+ * Benoit Cousson (b-cousson@ti.com)
+ *
+ * This file is automatically generated from the OMAP hardware databases.
+ * We respectfully ask that any modifications to this file be coordinated
+ * with the public linux-omap@vger.kernel.org mailing list and the
+ * authors above to ensure that the autogeneration scripts are kept
+ * up-to-date with the file contents.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/*
+ * To-Do List
+ * -> Populate the Sleep/Wakeup dependencies for the domains
+ */
+
+#ifndef __ARCH_ARM_MACH_OMAP2_CLOCKDOMAINS44XX_H
+#define __ARCH_ARM_MACH_OMAP2_CLOCKDOMAINS44XX_H
+
+#include <plat/clockdomain.h>
+
+#if defined(CONFIG_ARCH_OMAP4)
+
+static struct clockdomain l4_cefuse_44xx_clkdm = {
+	.name		  = "l4_cefuse_clkdm",
+	.pwrdm		  = { .name = "cefuse_pwrdm" },
+	.clkstctrl_reg	  = OMAP4430_CM_CEFUSE_CLKSTCTRL,
+	.clktrctrl_mask	  = OMAP4430_CLKTRCTRL_MASK,
+	.flags		  = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+};
+
+static struct clockdomain l4_cfg_44xx_clkdm = {
+	.name		  = "l4_cfg_clkdm",
+	.pwrdm		  = { .name = "core_pwrdm" },
+	.clkstctrl_reg	  = OMAP4430_CM_L4CFG_CLKSTCTRL,
+	.clktrctrl_mask	  = OMAP4430_CLKTRCTRL_MASK,
+	.flags		  = CLKDM_CAN_HWSUP,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+};
+
+static struct clockdomain tesla_44xx_clkdm = {
+	.name		  = "tesla_clkdm",
+	.pwrdm		  = { .name = "tesla_pwrdm" },
+	.clkstctrl_reg	  = OMAP4430_CM_TESLA_CLKSTCTRL,
+	.clktrctrl_mask	  = OMAP4430_CLKTRCTRL_MASK,
+	.flags		  = CLKDM_CAN_HWSUP_SWSUP,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+};
+
+static struct clockdomain l3_gfx_44xx_clkdm = {
+	.name		  = "l3_gfx_clkdm",
+	.pwrdm		  = { .name = "gfx_pwrdm" },
+	.clkstctrl_reg	  = OMAP4430_CM_GFX_CLKSTCTRL,
+	.clktrctrl_mask	  = OMAP4430_CLKTRCTRL_MASK,
+	.flags		  = CLKDM_CAN_HWSUP_SWSUP,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+};
+
+static struct clockdomain ivahd_44xx_clkdm = {
+	.name		  = "ivahd_clkdm",
+	.pwrdm		  = { .name = "ivahd_pwrdm" },
+	.clkstctrl_reg	  = OMAP4430_CM_IVAHD_CLKSTCTRL,
+	.clktrctrl_mask	  = OMAP4430_CLKTRCTRL_MASK,
+	.flags		  = CLKDM_CAN_HWSUP_SWSUP,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+};
+
+static struct clockdomain l4_secure_44xx_clkdm = {
+	.name		  = "l4_secure_clkdm",
+	.pwrdm		  = { .name = "l4per_pwrdm" },
+	.clkstctrl_reg	  = OMAP4430_CM_L4SEC_CLKSTCTRL,
+	.clktrctrl_mask	  = OMAP4430_CLKTRCTRL_MASK,
+	.flags		  = CLKDM_CAN_HWSUP_SWSUP,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+};
+
+static struct clockdomain l4_per_44xx_clkdm = {
+	.name		  = "l4_per_clkdm",
+	.pwrdm		  = { .name = "l4per_pwrdm" },
+	.clkstctrl_reg	  = OMAP4430_CM_L4PER_CLKSTCTRL,
+	.clktrctrl_mask	  = OMAP4430_CLKTRCTRL_MASK,
+	.flags		  = CLKDM_CAN_HWSUP_SWSUP,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+};
+
+static struct clockdomain abe_44xx_clkdm = {
+	.name		  = "abe_clkdm",
+	.pwrdm		  = { .name = "abe_pwrdm" },
+	.clkstctrl_reg	  = OMAP4430_CM1_ABE_CLKSTCTRL,
+	.clktrctrl_mask	  = OMAP4430_CLKTRCTRL_MASK,
+	.flags		  = CLKDM_CAN_HWSUP_SWSUP,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+};
+
+static struct clockdomain l3_instr_44xx_clkdm = {
+	.name		  = "l3_instr_clkdm",
+	.pwrdm		  = { .name = "core_pwrdm" },
+	.clkstctrl_reg	  = OMAP4430_CM_L3INSTR_CLKSTCTRL,
+	.clktrctrl_mask	  = OMAP4430_CLKTRCTRL_MASK,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+};
+
+static struct clockdomain l3_init_44xx_clkdm = {
+	.name		  = "l3_init_clkdm",
+	.pwrdm		  = { .name = "l3init_pwrdm" },
+	.clkstctrl_reg	  = OMAP4430_CM_L3INIT_CLKSTCTRL,
+	.clktrctrl_mask	  = OMAP4430_CLKTRCTRL_MASK,
+	.flags		  = CLKDM_CAN_HWSUP_SWSUP,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+};
+
+static struct clockdomain mpuss_44xx_clkdm = {
+	.name		  = "mpuss_clkdm",
+	.pwrdm		  = { .name = "mpu_pwrdm" },
+	.clkstctrl_reg	  = OMAP4430_CM_MPU_CLKSTCTRL,
+	.clktrctrl_mask	  = OMAP4430_CLKTRCTRL_MASK,
+	.flags		  = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+};
+
+static struct clockdomain mpu0_44xx_clkdm = {
+	.name		  = "mpu0_clkdm",
+	.pwrdm		  = { .name = "cpu0_pwrdm" },
+	.clkstctrl_reg	  = OMAP4430_CM_PDA_CPU0_CLKSTCTRL,
+	.clktrctrl_mask	  = OMAP4430_CLKTRCTRL_MASK,
+	.flags		  = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+};
+
+static struct clockdomain mpu1_44xx_clkdm = {
+	.name		  = "mpu1_clkdm",
+	.pwrdm		  = { .name = "cpu1_pwrdm" },
+	.clkstctrl_reg	  = OMAP4430_CM_PDA_CPU1_CLKSTCTRL,
+	.clktrctrl_mask	  = OMAP4430_CLKTRCTRL_MASK,
+	.flags		  = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+};
+
+static struct clockdomain l3_emif_44xx_clkdm = {
+	.name		  = "l3_emif_clkdm",
+	.pwrdm		  = { .name = "core_pwrdm" },
+	.clkstctrl_reg	  = OMAP4430_CM_MEMIF_CLKSTCTRL,
+	.clktrctrl_mask	  = OMAP4430_CLKTRCTRL_MASK,
+	.flags		  = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+};
+
+static struct clockdomain l4_ao_44xx_clkdm = {
+	.name		  = "l4_ao_clkdm",
+	.pwrdm		  = { .name = "always_on_core_pwrdm" },
+	.clkstctrl_reg	  = OMAP4430_CM_ALWON_CLKSTCTRL,
+	.clktrctrl_mask	  = OMAP4430_CLKTRCTRL_MASK,
+	.flags		  = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+};
+
+static struct clockdomain ducati_44xx_clkdm = {
+	.name		  = "ducati_clkdm",
+	.pwrdm		  = { .name = "core_pwrdm" },
+	.clkstctrl_reg	  = OMAP4430_CM_DUCATI_CLKSTCTRL,
+	.clktrctrl_mask	  = OMAP4430_CLKTRCTRL_MASK,
+	.flags		  = CLKDM_CAN_HWSUP_SWSUP,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+};
+
+static struct clockdomain l3_2_44xx_clkdm = {
+	.name		  = "l3_2_clkdm",
+	.pwrdm		  = { .name = "core_pwrdm" },
+	.clkstctrl_reg	  = OMAP4430_CM_L3_2_CLKSTCTRL,
+	.clktrctrl_mask	  = OMAP4430_CLKTRCTRL_MASK,
+	.flags		  = CLKDM_CAN_HWSUP,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+};
+
+static struct clockdomain l3_1_44xx_clkdm = {
+	.name		  = "l3_1_clkdm",
+	.pwrdm		  = { .name = "core_pwrdm" },
+	.clkstctrl_reg	  = OMAP4430_CM_L3_1_CLKSTCTRL,
+	.clktrctrl_mask	  = OMAP4430_CLKTRCTRL_MASK,
+	.flags		  = CLKDM_CAN_HWSUP,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+};
+
+static struct clockdomain l3_d2d_44xx_clkdm = {
+	.name		  = "l3_d2d_clkdm",
+	.pwrdm		  = { .name = "core_pwrdm" },
+	.clkstctrl_reg	  = OMAP4430_CM_D2D_CLKSTCTRL,
+	.clktrctrl_mask	  = OMAP4430_CLKTRCTRL_MASK,
+	.flags		  = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+};
+
+static struct clockdomain iss_44xx_clkdm = {
+	.name		  = "iss_clkdm",
+	.pwrdm		  = { .name = "cam_pwrdm" },
+	.clkstctrl_reg	  = OMAP4430_CM_CAM_CLKSTCTRL,
+	.clktrctrl_mask	  = OMAP4430_CLKTRCTRL_MASK,
+	.flags		  = CLKDM_CAN_HWSUP_SWSUP,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+};
+
+static struct clockdomain l3_dss_44xx_clkdm = {
+	.name		  = "l3_dss_clkdm",
+	.pwrdm		  = { .name = "dss_pwrdm" },
+	.clkstctrl_reg	  = OMAP4430_CM_DSS_CLKSTCTRL,
+	.clktrctrl_mask	  = OMAP4430_CLKTRCTRL_MASK,
+	.flags		  = CLKDM_CAN_HWSUP_SWSUP,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+};
+
+static struct clockdomain l4_wkup_44xx_clkdm = {
+	.name		  = "l4_wkup_clkdm",
+	.pwrdm		  = { .name = "wkup_pwrdm" },
+	.clkstctrl_reg	  = OMAP4430_CM_WKUP_CLKSTCTRL,
+	.clktrctrl_mask	  = OMAP4430_CLKTRCTRL_MASK,
+	.flags		  = CLKDM_CAN_HWSUP,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+};
+
+static struct clockdomain emu_sys_44xx_clkdm = {
+	.name		  = "emu_sys_clkdm",
+	.pwrdm		  = { .name = "emu_pwrdm" },
+	.clkstctrl_reg	  = OMAP4430_CM_EMU_CLKSTCTRL,
+	.clktrctrl_mask	  = OMAP4430_CLKTRCTRL_MASK,
+	.flags		  = CLKDM_CAN_HWSUP,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+};
+
+static struct clockdomain l3_dma_44xx_clkdm = {
+	.name		  = "l3_dma_clkdm",
+	.pwrdm		  = { .name = "core_pwrdm" },
+	.clkstctrl_reg	  = OMAP4430_CM_SDMA_CLKSTCTRL,
+	.clktrctrl_mask	  = OMAP4430_CLKTRCTRL_MASK,
+	.flags		  = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+};
+
+#endif
+
+#endif

arch/arm/mach-omap2/cm.h

@@ -67,7 +67,8 @@
 #define CM_CLKSEL					0x0040
 #define CM_CLKSEL1					CM_CLKSEL
 #define CM_CLKSEL2					0x0044
-#define CM_CLKSTCTRL					0x0048
+#define OMAP2_CM_CLKSTCTRL				0x0048
+#define OMAP4_CM_CLKSTCTRL				0x0000
 
 
 /* Architecture-specific registers */
@@ -88,7 +89,7 @@
 #define OMAP3430_CM_CLKSEL1_PLL				CM_CLKSEL
 #define OMAP3430_CM_CLKSEL2_PLL				CM_CLKSEL2
 #define OMAP3430_CM_SLEEPDEP				CM_CLKSEL2
-#define OMAP3430_CM_CLKSEL3				CM_CLKSTCTRL
+#define OMAP3430_CM_CLKSEL3				OMAP2_CM_CLKSTCTRL
 #define OMAP3430_CM_CLKSTST				0x004c
 #define OMAP3430ES2_CM_CLKSEL4				0x004c
 #define OMAP3430ES2_CM_CLKSEL5				0x0050

arch/arm/mach-omap2/dpll.c → arch/arm/mach-omap2/dpll3xxx.c

@@ -44,17 +44,7 @@
 
 #define MAX_DPLL_WAIT_TRIES		1000000
 
-
-/**
- * omap3_dpll_recalc - recalculate DPLL rate
- * @clk: DPLL struct clk
- *
- * Recalculate and propagate the DPLL rate.
- */
-unsigned long omap3_dpll_recalc(struct clk *clk)
-{
-	return omap2_get_dpll_rate(clk);
-}
+/* Private functions */
 
 /* _omap3_dpll_write_clken - write clken_bits arg to a DPLL's enable bits */
 static void _omap3_dpll_write_clken(struct clk *clk, u8 clken_bits)
@@ -136,8 +126,6 @@ static u16 _omap3_dpll_compute_freqsel(struct clk *clk, u8 n)
 	return f;
 }
 
-/* Non-CORE DPLL (e.g., DPLLs that do not control SDRC) clock functions */
-
 /*
  * _omap3_noncore_dpll_lock - instruct a DPLL to lock and wait for readiness
  * @clk: pointer to a DPLL struct clk
@@ -237,6 +225,63 @@ static int _omap3_noncore_dpll_stop(struct clk *clk)
 	return 0;
 }
 
+/*
+ * _omap3_noncore_dpll_program - set non-core DPLL M,N values directly
+ * @clk: struct clk * of DPLL to set
+ * @m: DPLL multiplier to set
+ * @n: DPLL divider to set
+ * @freqsel: FREQSEL value to set
+ *
+ * Program the DPLL with the supplied M, N values, and wait for the DPLL to
+ * lock..  Returns -EINVAL upon error, or 0 upon success.
+ */
+static int omap3_noncore_dpll_program(struct clk *clk, u16 m, u8 n, u16 freqsel)
+{
+	struct dpll_data *dd = clk->dpll_data;
+	u32 v;
+
+	/* 3430 ES2 TRM: 4.7.6.9 DPLL Programming Sequence */
+	_omap3_noncore_dpll_bypass(clk);
+
+	/* Set jitter correction */
+	if (!cpu_is_omap44xx()) {
+		v = __raw_readl(dd->control_reg);
+		v &= ~dd->freqsel_mask;
+		v |= freqsel << __ffs(dd->freqsel_mask);
+		__raw_writel(v, dd->control_reg);
+	}
+
+	/* Set DPLL multiplier, divider */
+	v = __raw_readl(dd->mult_div1_reg);
+	v &= ~(dd->mult_mask | dd->div1_mask);
+	v |= m << __ffs(dd->mult_mask);
+	v |= (n - 1) << __ffs(dd->div1_mask);
+	__raw_writel(v, dd->mult_div1_reg);
+
+	/* We let the clock framework set the other output dividers later */
+
+	/* REVISIT: Set ramp-up delay? */
+
+	_omap3_noncore_dpll_lock(clk);
+
+	return 0;
+}
+
+/* Public functions */
+
+/**
+ * omap3_dpll_recalc - recalculate DPLL rate
+ * @clk: DPLL struct clk
+ *
+ * Recalculate and propagate the DPLL rate.
+ */
+unsigned long omap3_dpll_recalc(struct clk *clk)
+{
+	return omap2_get_dpll_rate(clk);
+}
+
+/* Non-CORE DPLL (e.g., DPLLs that do not control SDRC) clock functions */
+
 /**
  * omap3_noncore_dpll_enable - instruct a DPLL to enter bypass or lock mode
  * @clk: pointer to a DPLL struct clk
@@ -292,48 +337,6 @@ void omap3_noncore_dpll_disable(struct clk *clk)
 
 /* Non-CORE DPLL rate set code */
 
-/*
- * omap3_noncore_dpll_program - set non-core DPLL M,N values directly
- * @clk: struct clk * of DPLL to set
- * @m: DPLL multiplier to set
- * @n: DPLL divider to set
- * @freqsel: FREQSEL value to set
- *
- * Program the DPLL with the supplied M, N values, and wait for the DPLL to
- * lock..  Returns -EINVAL upon error, or 0 upon success.
- */
-int omap3_noncore_dpll_program(struct clk *clk, u16 m, u8 n, u16 freqsel)
-{
-	struct dpll_data *dd = clk->dpll_data;
-	u32 v;
-
-	/* 3430 ES2 TRM: 4.7.6.9 DPLL Programming Sequence */
-	_omap3_noncore_dpll_bypass(clk);
-
-	/* Set jitter correction */
-	if (!cpu_is_omap44xx()) {
-		v = __raw_readl(dd->control_reg);
-		v &= ~dd->freqsel_mask;
-		v |= freqsel << __ffs(dd->freqsel_mask);
-		__raw_writel(v, dd->control_reg);
-	}
-
-	/* Set DPLL multiplier, divider */
-	v = __raw_readl(dd->mult_div1_reg);
-	v &= ~(dd->mult_mask | dd->div1_mask);
-	v |= m << __ffs(dd->mult_mask);
-	v |= (n - 1) << __ffs(dd->div1_mask);
-	__raw_writel(v, dd->mult_div1_reg);
-
-	/* We let the clock framework set the other output dividers later */
-
-	/* REVISIT: Set ramp-up delay? */
-
-	_omap3_noncore_dpll_lock(clk);
-
-	return 0;
-}
-
 /**
  * omap3_noncore_dpll_set_rate - set non-core DPLL rate
  * @clk: struct clk * of DPLL to set

arch/arm/mach-omap2/id.c

@@ -281,6 +281,7 @@ void __init omap4_check_revision(void)
 
 	if ((hawkeye == 0xb852) && (rev == 0x0)) {
 		omap_revision = OMAP4430_REV_ES1_0;
+		omap_chip.oc |= CHIP_IS_OMAP4430ES1;
 		pr_info("OMAP%04x %s\n", omap_rev() >> 16, rev_name);
 		return;
 	}

arch/arm/mach-omap2/io.c

@@ -35,7 +35,9 @@
 #include <plat/serial.h>
 #include <plat/vram.h>
 
-#include "clock.h"
+#include "clock2xxx.h"
+#include "clock34xx.h"
+#include "clock44xx.h"
 
 #include <plat/omap-pm.h>
 #include <plat/powerdomain.h>
@@ -312,15 +314,24 @@ void __init omap2_init_common_hw(struct omap_sdrc_params *sdrc_cs0,
 	else if (cpu_is_omap34xx())
 		hwmods = omap34xx_hwmods;
 
+	pwrdm_init(powerdomains_omap);
+	clkdm_init(clockdomains_omap, clkdm_autodeps);
 #ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once the clkdev is ready */
 	/* The OPP tables have to be registered before a clk init */
 	omap_hwmod_init(hwmods);
 	omap2_mux_init();
 	omap_pm_if_early_init(mpu_opps, dsp_opps, l3_opps);
-	pwrdm_init(powerdomains_omap);
-	clkdm_init(clockdomains_omap, clkdm_pwrdm_autodeps);
 #endif
-	omap2_clk_init();
+
+	if (cpu_is_omap24xx())
+		omap2xxx_clk_init();
+	else if (cpu_is_omap34xx())
+		omap3xxx_clk_init();
+	else if (cpu_is_omap44xx())
+		omap4xxx_clk_init();
+	else
+		pr_err("Could not init clock framework - unknown CPU\n");
+
 	omap_serial_early_init();
 #ifndef CONFIG_ARCH_OMAP4
 	omap_hwmod_late_init();

arch/arm/mach-omap2/omap_hwmod.c

@@ -299,15 +299,14 @@ static int _disable_wakeup(struct omap_hwmod *oh)
  * be accessed by the IVA, there should be a sleepdep between the IVA
  * initiator and the module).  Only applies to modules in smart-idle
  * mode.  Returns -EINVAL upon error or passes along
- * pwrdm_add_sleepdep() value upon success.
+ * clkdm_add_sleepdep() value upon success.
  */
 static int _add_initiator_dep(struct omap_hwmod *oh, struct omap_hwmod *init_oh)
 {
 	if (!oh->_clk)
 		return -EINVAL;
 
-	return pwrdm_add_sleepdep(oh->_clk->clkdm->pwrdm.ptr,
-				  init_oh->_clk->clkdm->pwrdm.ptr);
+	return clkdm_add_sleepdep(oh->_clk->clkdm, init_oh->_clk->clkdm);
 }
 
 /**
@@ -320,15 +319,14 @@ static int _add_initiator_dep(struct omap_hwmod *oh, struct omap_hwmod *init_oh)
  * be accessed by the IVA, there should be no sleepdep between the IVA
  * initiator and the module).  Only applies to modules in smart-idle
  * mode.  Returns -EINVAL upon error or passes along
- * pwrdm_add_sleepdep() value upon success.
+ * clkdm_del_sleepdep() value upon success.
  */
 static int _del_initiator_dep(struct omap_hwmod *oh, struct omap_hwmod *init_oh)
 {
 	if (!oh->_clk)
 		return -EINVAL;
 
-	return pwrdm_del_sleepdep(oh->_clk->clkdm->pwrdm.ptr,
-				  init_oh->_clk->clkdm->pwrdm.ptr);
+	return clkdm_del_sleepdep(oh->_clk->clkdm, init_oh->_clk->clkdm);
 }
 
 /**
@@ -994,6 +992,23 @@ void omap_hwmod_writel(u32 v, struct omap_hwmod *oh, u16 reg_offs)
 	__raw_writel(v, oh->_rt_va + reg_offs);
 }
 
+int omap_hwmod_set_slave_idlemode(struct omap_hwmod *oh, u8 idlemode)
+{
+	u32 v;
+	int retval = 0;
+
+	if (!oh)
+		return -EINVAL;
+
+	v = oh->_sysc_cache;
+
+	retval = _set_slave_idlemode(oh, idlemode, &v);
+	if (!retval)
+		_write_sysconfig(v, oh);
+
+	return retval;
+}
+
 /**
  * omap_hwmod_register - register a struct omap_hwmod
  * @oh: struct omap_hwmod *

arch/arm/mach-omap2/pm-debug.c

@@ -67,9 +67,9 @@ void omap2_pm_dump(int mode, int resume, unsigned int us)
 #if 0
 		/* MPU */
 		DUMP_PRM_MOD_REG(OCP_MOD, OMAP2_PRM_IRQENABLE_MPU_OFFSET);
-		DUMP_CM_MOD_REG(MPU_MOD, CM_CLKSTCTRL);
-		DUMP_PRM_MOD_REG(MPU_MOD, PM_PWSTCTRL);
-		DUMP_PRM_MOD_REG(MPU_MOD, PM_PWSTST);
+		DUMP_CM_MOD_REG(MPU_MOD, OMAP2_CM_CLKSTCTRL);
+		DUMP_PRM_MOD_REG(MPU_MOD, OMAP2_PM_PWSTCTRL);
+		DUMP_PRM_MOD_REG(MPU_MOD, OMAP2_PM_PWSTST);
 		DUMP_PRM_MOD_REG(MPU_MOD, PM_WKDEP);
 #endif
 #if 0
@@ -93,7 +93,7 @@ void omap2_pm_dump(int mode, int resume, unsigned int us)
 		DUMP_CM_MOD_REG(WKUP_MOD, CM_ICLKEN);
 		DUMP_CM_MOD_REG(PLL_MOD, CM_CLKEN);
 		DUMP_CM_MOD_REG(PLL_MOD, CM_AUTOIDLE);
-		DUMP_PRM_MOD_REG(CORE_MOD, PM_PWSTST);
+		DUMP_PRM_MOD_REG(CORE_MOD, OMAP2_PM_PWSTST);
 #endif
 #if 0
 		/* DSP */
@@ -103,11 +103,11 @@ void omap2_pm_dump(int mode, int resume, unsigned int us)
 			DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_IDLEST);
 			DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_AUTOIDLE);
 			DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_CLKSEL);
-			DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_CLKSTCTRL);
-			DUMP_PRM_MOD_REG(OMAP24XX_DSP_MOD, RM_RSTCTRL);
-			DUMP_PRM_MOD_REG(OMAP24XX_DSP_MOD, RM_RSTST);
-			DUMP_PRM_MOD_REG(OMAP24XX_DSP_MOD, PM_PWSTCTRL);
-			DUMP_PRM_MOD_REG(OMAP24XX_DSP_MOD, PM_PWSTST);
+			DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, OMAP2_CM_CLKSTCTRL);
+			DUMP_PRM_MOD_REG(OMAP24XX_DSP_MOD, OMAP2_RM_RSTCTRL);
+			DUMP_PRM_MOD_REG(OMAP24XX_DSP_MOD, OMAP2_RM_RSTST);
+			DUMP_PRM_MOD_REG(OMAP24XX_DSP_MOD, OMAP2_PM_PWSTCTRL);
+			DUMP_PRM_MOD_REG(OMAP24XX_DSP_MOD, OMAP2_PM_PWSTST);
 		}
 #endif
 	} else {
@@ -577,7 +577,7 @@ static int __init pm_dbg_init(void)
 	(void) debugfs_create_file("time", S_IRUGO,
 		d, (void *)DEBUG_FILE_TIMERS, &debug_fops);
 
-	pwrdm_for_each_nolock(pwrdms_setup, (void *)d);
+	pwrdm_for_each(pwrdms_setup, (void *)d);
 
 	pm_dbg_dir = debugfs_create_dir("registers", d);
 	if (IS_ERR(pm_dbg_dir))

arch/arm/mach-omap2/pm24xx.c

@@ -57,11 +57,8 @@ static void (*omap2_sram_idle)(void);
 static void (*omap2_sram_suspend)(u32 dllctrl, void __iomem *sdrc_dlla_ctrl,
 				  void __iomem *sdrc_power);
 
-static struct powerdomain *mpu_pwrdm;
-static struct powerdomain *core_pwrdm;
-
-static struct clockdomain *dsp_clkdm;
-static struct clockdomain *gfx_clkdm;
+static struct powerdomain *mpu_pwrdm, *core_pwrdm;
+static struct clockdomain *dsp_clkdm, *mpu_clkdm, *wkup_clkdm, *gfx_clkdm;
 
 static struct clk *osc_ck, *emul_ck;
 
@@ -219,11 +216,12 @@ static void omap2_enter_mpu_retention(void)
 		/* Try to enter MPU retention */
 		prm_write_mod_reg((0x01 << OMAP_POWERSTATE_SHIFT) |
 				  OMAP_LOGICRETSTATE,
-				  MPU_MOD, PM_PWSTCTRL);
+				  MPU_MOD, OMAP2_PM_PWSTCTRL);
 	} else {
 		/* Block MPU retention */
 
-		prm_write_mod_reg(OMAP_LOGICRETSTATE, MPU_MOD, PM_PWSTCTRL);
+		prm_write_mod_reg(OMAP_LOGICRETSTATE, MPU_MOD,
+						 OMAP2_PM_PWSTCTRL);
 		only_idle = 1;
 	}
 
@@ -333,9 +331,17 @@ static struct platform_suspend_ops omap_pm_ops = {
 	.valid		= suspend_valid_only_mem,
 };
 
-static int _pm_clkdm_enable_hwsup(struct clockdomain *clkdm, void *unused)
+/* XXX This function should be shareable between OMAP2xxx and OMAP3 */
+static int __init clkdms_setup(struct clockdomain *clkdm, void *unused)
 {
-	omap2_clkdm_allow_idle(clkdm);
+	clkdm_clear_all_wkdeps(clkdm);
+	clkdm_clear_all_sleepdeps(clkdm);
+
+	if (clkdm->flags & CLKDM_CAN_ENABLE_AUTO)
+		omap2_clkdm_allow_idle(clkdm);
+	else if (clkdm->flags & CLKDM_CAN_FORCE_SLEEP &&
+		 atomic_read(&clkdm->usecount) == 0)
+		omap2_clkdm_sleep(clkdm);
 	return 0;
 }
 
@@ -348,14 +354,6 @@ static void __init prcm_setup_regs(void)
 	prm_write_mod_reg(OMAP24XX_AUTOIDLE, OCP_MOD,
 			  OMAP2_PRCM_SYSCONFIG_OFFSET);
 
-	/* Set all domain wakeup dependencies */
-	prm_write_mod_reg(OMAP_EN_WKUP_MASK, MPU_MOD, PM_WKDEP);
-	prm_write_mod_reg(0, OMAP24XX_DSP_MOD, PM_WKDEP);
-	prm_write_mod_reg(0, GFX_MOD, PM_WKDEP);
-	prm_write_mod_reg(0, CORE_MOD, PM_WKDEP);
-	if (cpu_is_omap2430())
-		prm_write_mod_reg(0, OMAP2430_MDM_MOD, PM_WKDEP);
-
 	/*
 	 * Set CORE powerdomain memory banks to retain their contents
 	 * during RETENTION
@@ -384,8 +382,12 @@ static void __init prcm_setup_regs(void)
 	pwrdm_set_next_pwrst(pwrdm, PWRDM_POWER_OFF);
 	omap2_clkdm_sleep(gfx_clkdm);
 
-	/* Enable clockdomain hardware-supervised control for all clkdms */
-	clkdm_for_each(_pm_clkdm_enable_hwsup, NULL);
+	/*
+	 * Clear clockdomain wakeup dependencies and enable
+	 * hardware-supervised idle for all clkdms
+	 */
+	clkdm_for_each(clkdms_setup, NULL);
+	clkdm_add_wkdep(mpu_clkdm, wkup_clkdm);
 
 	/* Enable clock autoidle for all domains */
 	cm_write_mod_reg(OMAP24XX_AUTO_CAM |
@@ -481,7 +483,7 @@ static int __init omap2_pm_init(void)
 	l = prm_read_mod_reg(OCP_MOD, OMAP2_PRCM_REVISION_OFFSET);
 	printk(KERN_INFO "PRCM revision %d.%d\n", (l >> 4) & 0x0f, l & 0x0f);
 
-	/* Look up important powerdomains, clockdomains */
+	/* Look up important powerdomains */
 
 	mpu_pwrdm = pwrdm_lookup("mpu_pwrdm");
 	if (!mpu_pwrdm)
@@ -491,9 +493,19 @@ static int __init omap2_pm_init(void)
 	if (!core_pwrdm)
 		pr_err("PM: core_pwrdm not found\n");
 
+	/* Look up important clockdomains */
+
+	mpu_clkdm = clkdm_lookup("mpu_clkdm");
+	if (!mpu_clkdm)
+		pr_err("PM: mpu_clkdm not found\n");
+
+	wkup_clkdm = clkdm_lookup("wkup_clkdm");
+	if (!wkup_clkdm)
+		pr_err("PM: wkup_clkdm not found\n");
+
 	dsp_clkdm = clkdm_lookup("dsp_clkdm");
 	if (!dsp_clkdm)
-		pr_err("PM: mpu_clkdm not found\n");
+		pr_err("PM: dsp_clkdm not found\n");
 
 	gfx_clkdm = clkdm_lookup("gfx_clkdm");
 	if (!gfx_clkdm)

arch/arm/mach-omap2/pm34xx.c

@@ -685,7 +685,7 @@ static void __init omap3_iva_idle(void)
 	prm_write_mod_reg(OMAP3430_RST1_IVA2 |
 			  OMAP3430_RST2_IVA2 |
 			  OMAP3430_RST3_IVA2,
-			  OMAP3430_IVA2_MOD, RM_RSTCTRL);
+			  OMAP3430_IVA2_MOD, OMAP2_RM_RSTCTRL);
 
 	/* Enable IVA2 clock */
 	cm_write_mod_reg(OMAP3430_CM_FCLKEN_IVA2_EN_IVA2,
@@ -696,7 +696,7 @@ static void __init omap3_iva_idle(void)
 			 OMAP343X_CONTROL_IVA2_BOOTMOD);
 
 	/* Un-reset IVA2 */
-	prm_write_mod_reg(0, OMAP3430_IVA2_MOD, RM_RSTCTRL);
+	prm_write_mod_reg(0, OMAP3430_IVA2_MOD, OMAP2_RM_RSTCTRL);
 
 	/* Disable IVA2 clock */
 	cm_write_mod_reg(0, OMAP3430_IVA2_MOD, CM_FCLKEN);
@@ -705,7 +705,7 @@ static void __init omap3_iva_idle(void)
 	prm_write_mod_reg(OMAP3430_RST1_IVA2 |
 			  OMAP3430_RST2_IVA2 |
 			  OMAP3430_RST3_IVA2,
-			  OMAP3430_IVA2_MOD, RM_RSTCTRL);
+			  OMAP3430_IVA2_MOD, OMAP2_RM_RSTCTRL);
 }
 
 static void __init omap3_d2d_idle(void)
@@ -728,8 +728,8 @@ static void __init omap3_d2d_idle(void)
 	/* reset modem */
 	prm_write_mod_reg(OMAP3430_RM_RSTCTRL_CORE_MODEM_SW_RSTPWRON |
 			  OMAP3430_RM_RSTCTRL_CORE_MODEM_SW_RST,
-			  CORE_MOD, RM_RSTCTRL);
-	prm_write_mod_reg(0, CORE_MOD, RM_RSTCTRL);
+			  CORE_MOD, OMAP2_RM_RSTCTRL);
+	prm_write_mod_reg(0, CORE_MOD, OMAP2_RM_RSTCTRL);
 }
 
 static void __init prcm_setup_regs(void)
@@ -916,13 +916,13 @@ static void __init prcm_setup_regs(void)
 	prm_write_mod_reg(0, OMAP3430_PER_MOD, OMAP3430_PM_IVAGRPSEL);
 
 	/* Clear any pending 'reset' flags */
-	prm_write_mod_reg(0xffffffff, MPU_MOD, RM_RSTST);
-	prm_write_mod_reg(0xffffffff, CORE_MOD, RM_RSTST);
-	prm_write_mod_reg(0xffffffff, OMAP3430_PER_MOD, RM_RSTST);
-	prm_write_mod_reg(0xffffffff, OMAP3430_EMU_MOD, RM_RSTST);
-	prm_write_mod_reg(0xffffffff, OMAP3430_NEON_MOD, RM_RSTST);
-	prm_write_mod_reg(0xffffffff, OMAP3430_DSS_MOD, RM_RSTST);
-	prm_write_mod_reg(0xffffffff, OMAP3430ES2_USBHOST_MOD, RM_RSTST);
+	prm_write_mod_reg(0xffffffff, MPU_MOD, OMAP2_RM_RSTST);
+	prm_write_mod_reg(0xffffffff, CORE_MOD, OMAP2_RM_RSTST);
+	prm_write_mod_reg(0xffffffff, OMAP3430_PER_MOD, OMAP2_RM_RSTST);
+	prm_write_mod_reg(0xffffffff, OMAP3430_EMU_MOD, OMAP2_RM_RSTST);
+	prm_write_mod_reg(0xffffffff, OMAP3430_NEON_MOD, OMAP2_RM_RSTST);
+	prm_write_mod_reg(0xffffffff, OMAP3430_DSS_MOD, OMAP2_RM_RSTST);
+	prm_write_mod_reg(0xffffffff, OMAP3430ES2_USBHOST_MOD, OMAP2_RM_RSTST);
 
 	/* Clear any pending PRCM interrupts */
 	prm_write_mod_reg(0, OCP_MOD, OMAP3_PRM_IRQSTATUS_MPU_OFFSET);
@@ -998,6 +998,9 @@ static int __init pwrdms_setup(struct powerdomain *pwrdm, void *unused)
  */
 static int __init clkdms_setup(struct clockdomain *clkdm, void *unused)
 {
+	clkdm_clear_all_wkdeps(clkdm);
+	clkdm_clear_all_sleepdeps(clkdm);
+
 	if (clkdm->flags & CLKDM_CAN_ENABLE_AUTO)
 		omap2_clkdm_allow_idle(clkdm);
 	else if (clkdm->flags & CLKDM_CAN_FORCE_SLEEP &&
@@ -1018,6 +1021,7 @@ void omap_push_sram_idle(void)
 static int __init omap3_pm_init(void)
 {
 	struct power_state *pwrst, *tmp;
+	struct clockdomain *neon_clkdm, *per_clkdm, *mpu_clkdm, *core_clkdm;
 	int ret;
 
 	if (!cpu_is_omap34xx())
@@ -1057,6 +1061,11 @@ static int __init omap3_pm_init(void)
 	core_pwrdm = pwrdm_lookup("core_pwrdm");
 	cam_pwrdm = pwrdm_lookup("cam_pwrdm");
 
+	neon_clkdm = clkdm_lookup("neon_clkdm");
+	mpu_clkdm = clkdm_lookup("mpu_clkdm");
+	per_clkdm = clkdm_lookup("per_clkdm");
+	core_clkdm = clkdm_lookup("core_clkdm");
+
 	omap_push_sram_idle();
 #ifdef CONFIG_SUSPEND
 	suspend_set_ops(&omap_pm_ops);
@@ -1065,14 +1074,14 @@ static int __init omap3_pm_init(void)
 	pm_idle = omap3_pm_idle;
 	omap3_idle_init();
 
-	pwrdm_add_wkdep(neon_pwrdm, mpu_pwrdm);
+	clkdm_add_wkdep(neon_clkdm, mpu_clkdm);
 	/*
 	 * REVISIT: This wkdep is only necessary when GPIO2-6 are enabled for
 	 * IO-pad wakeup.  Otherwise it will unnecessarily waste power
 	 * waking up PER with every CORE wakeup - see
 	 * http://marc.info/?l=linux-omap&m=121852150710062&w=2
 	*/
-	pwrdm_add_wkdep(per_pwrdm, core_pwrdm);
+	clkdm_add_wkdep(per_clkdm, core_clkdm);
 
 	if (omap_type() != OMAP2_DEVICE_TYPE_GP) {
 		omap3_secure_ram_storage =

arch/arm/mach-omap2/powerdomains.h

@@ -1,8 +1,8 @@
 /*
  * OMAP2/3 common powerdomain definitions
  *
- * Copyright (C) 2007-8 Texas Instruments, Inc.
- * Copyright (C) 2007-8 Nokia Corporation
+ * Copyright (C) 2007-2008 Texas Instruments, Inc.
+ * Copyright (C) 2007-2009 Nokia Corporation
  *
  * Written by Paul Walmsley
  * Debugging and integration fixes by Jouni Högander
@@ -12,26 +12,21 @@
  * published by the Free Software Foundation.
  */
 
+/*
+ * To Do List
+ * -> Move the Sleep/Wakeup dependencies from Power Domain framework to
+ *    Clock Domain Framework
+ */
+
 #ifndef ARCH_ARM_MACH_OMAP2_POWERDOMAINS
 #define ARCH_ARM_MACH_OMAP2_POWERDOMAINS
 
 /*
  * This file contains all of the powerdomains that have some element
- * of software control for the OMAP24xx and OMAP34XX chips.
- *
- * A few notes:
+ * of software control for the OMAP24xx and OMAP34xx chips.
  *
  * This is not an exhaustive listing of powerdomains on the chips; only
  * powerdomains that can be controlled in software.
- *
- * A useful validation rule for struct powerdomain:
- * Any powerdomain referenced by a wkdep_srcs or sleepdep_srcs array
- * must have a dep_bit assigned.  So wkdep_srcs/sleepdep_srcs are really
- * just software-controllable dependencies.  Non-software-controllable
- * dependencies do exist, but they are not encoded below (yet).
- *
- * 24xx does not support programmable sleep dependencies (SLEEPDEP)
- *
  */
 
 /*
@@ -41,26 +36,17 @@
  *
  * On the 2420, this is a 'C55 DSP called, simply, the DSP.  Its
  * powerdomain is called the "DSP power domain."  On the 2430, the
- * on-board DSP is a 'C64 DSP, now called the IVA2 or IVA2.1.  Its
- * powerdomain is still called the "DSP power domain."	On the 3430,
- * the DSP is a 'C64 DSP like the 2430, also known as the IVA2; but
- * its powerdomain is now called the "IVA2 power domain."
+ * on-board DSP is a 'C64 DSP, now called (along with its hardware
+ * accelerators) the IVA2 or IVA2.1.  Its powerdomain is still called
+ * the "DSP power domain." On the 3430, the DSP is a 'C64 DSP like the
+ * 2430, also known as the IVA2; but its powerdomain is now called the
+ * "IVA2 power domain."
  *
  * The 2420 also has something called the IVA, which is a separate ARM
  * core, and has nothing to do with the DSP/IVA2.
  *
  * Ideally the DSP/IVA2 could just be the same powerdomain, but the PRCM
  * address offset is different between the C55 and C64 DSPs.
- *
- * The overly-specific dep_bit names are due to a bit name collision
- * with CM_FCLKEN_{DSP,IVA2}.  The DSP/IVA2 PM_WKDEP and CM_SLEEPDEP shift
- * value are the same for all powerdomains: 2
- */
-
-/*
- * XXX should dep_bit be a mask, so we can test to see if it is 0 as a
- * sanity check?
- * XXX encode hardware fixed wakeup dependencies -- esp. for 3430 CORE
  */
 
 #include <plat/powerdomain.h>
@@ -68,69 +54,23 @@
 #include "prcm-common.h"
 #include "prm.h"
 #include "cm.h"
-
-/* OMAP2/3-common powerdomains and wakeup dependencies */
-
-/*
- * 2420/2430 PM_WKDEP_GFX: CORE, MPU, WKUP
- * 3430ES1 PM_WKDEP_GFX: adds IVA2, removes CORE
- * 3430ES2 PM_WKDEP_SGX: adds IVA2, removes CORE
- */
-static struct pwrdm_dep gfx_sgx_wkdeps[] = {
-	{
-		.pwrdm_name = "core_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
-	},
-	{
-		.pwrdm_name = "iva2_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
-	},
-	{
-		.pwrdm_name = "mpu_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX |
-					    CHIP_IS_OMAP3430)
-	},
-	{
-		.pwrdm_name = "wkup_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX |
-					    CHIP_IS_OMAP3430)
-	},
-	{ NULL },
-};
-
-/*
- * 3430: CM_SLEEPDEP_CAM: MPU
- * 3430ES1: CM_SLEEPDEP_GFX: MPU
- * 3430ES2: CM_SLEEPDEP_SGX: MPU
- */
-static struct pwrdm_dep cam_gfx_sleepdeps[] = {
-	{
-		.pwrdm_name = "mpu_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
-	},
-	{ NULL },
-};
-
-
 #include "powerdomains24xx.h"
 #include "powerdomains34xx.h"
+#include "powerdomains44xx.h"
 
+/* OMAP2/3-common powerdomains */
 
-/*
- * OMAP2/3 common powerdomains
- */
+#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
 
 /*
  * The GFX powerdomain is not present on 3430ES2, but currently we do not
  * have a macro to filter it out at compile-time.
  */
-static struct powerdomain gfx_pwrdm = {
+static struct powerdomain gfx_omap2_pwrdm = {
 	.name		  = "gfx_pwrdm",
 	.prcm_offs	  = GFX_MOD,
 	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX |
 					   CHIP_IS_OMAP3430ES1),
-	.wkdep_srcs	  = gfx_sgx_wkdeps,
-	.sleepdep_srcs	  = cam_gfx_sleepdeps,
 	.pwrsts		  = PWRSTS_OFF_RET_ON,
 	.pwrsts_logic_ret = PWRDM_POWER_RET,
 	.banks		  = 1,
@@ -142,22 +82,24 @@ static struct powerdomain gfx_pwrdm = {
 	},
 };
 
-static struct powerdomain wkup_pwrdm = {
+static struct powerdomain wkup_omap2_pwrdm = {
 	.name		= "wkup_pwrdm",
 	.prcm_offs	= WKUP_MOD,
 	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP24XX | CHIP_IS_OMAP3430),
-	.dep_bit	= OMAP_EN_WKUP_SHIFT,
 };
 
+#endif
 
 
 /* As powerdomains are added or removed above, this list must also be changed */
 static struct powerdomain *powerdomains_omap[] __initdata = {
 
-	&gfx_pwrdm,
-	&wkup_pwrdm,
+#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
+	&wkup_omap2_pwrdm,
+	&gfx_omap2_pwrdm,
+#endif
 
-#ifdef CONFIG_ARCH_OMAP24XX
+#ifdef CONFIG_ARCH_OMAP2
 	&dsp_pwrdm,
 	&mpu_24xx_pwrdm,
 	&core_24xx_pwrdm,
@@ -167,12 +109,12 @@ static struct powerdomain *powerdomains_omap[] __initdata = {
 	&mdm_pwrdm,
 #endif
 
-#ifdef CONFIG_ARCH_OMAP34XX
+#ifdef CONFIG_ARCH_OMAP3
 	&iva2_pwrdm,
-	&mpu_34xx_pwrdm,
+	&mpu_3xxx_pwrdm,
 	&neon_pwrdm,
-	&core_34xx_pre_es3_1_pwrdm,
-	&core_34xx_es3_1_pwrdm,
+	&core_3xxx_pre_es3_1_pwrdm,
+	&core_3xxx_es3_1_pwrdm,
 	&cam_pwrdm,
 	&dss_pwrdm,
 	&per_pwrdm,
@@ -186,6 +128,24 @@ static struct powerdomain *powerdomains_omap[] __initdata = {
 	&dpll5_pwrdm,
 #endif
 
+#ifdef CONFIG_ARCH_OMAP4
+	&core_44xx_pwrdm,
+	&gfx_44xx_pwrdm,
+	&abe_44xx_pwrdm,
+	&dss_44xx_pwrdm,
+	&tesla_44xx_pwrdm,
+	&wkup_44xx_pwrdm,
+	&cpu0_44xx_pwrdm,
+	&cpu1_44xx_pwrdm,
+	&emu_44xx_pwrdm,
+	&mpu_44xx_pwrdm,
+	&ivahd_44xx_pwrdm,
+	&cam_44xx_pwrdm,
+	&l3init_44xx_pwrdm,
+	&l4per_44xx_pwrdm,
+	&always_on_core_44xx_pwrdm,
+	&cefuse_44xx_pwrdm,
+#endif
 	NULL
 };
 

arch/arm/mach-omap2/powerdomains24xx.h

@@ -2,7 +2,7 @@
  * OMAP24XX powerdomain definitions
  *
  * Copyright (C) 2007-2008 Texas Instruments, Inc.
- * Copyright (C) 2007-2008 Nokia Corporation
+ * Copyright (C) 2007-2009 Nokia Corporation
  *
  * Written by Paul Walmsley
  * Debugging and integration fixes by Jouni Högander
@@ -32,90 +32,12 @@
 
 #ifdef CONFIG_ARCH_OMAP24XX
 
-
-/* Wakeup dependency source arrays */
-
-/*
- * 2420/2430 PM_WKDEP_DSP: CORE, MPU, WKUP
- * 2430 PM_WKDEP_MDM: same as above
- */
-static struct pwrdm_dep dsp_mdm_24xx_wkdeps[] = {
-	{
-		.pwrdm_name = "core_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
-	},
-	{
-		.pwrdm_name = "mpu_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
-	},
-	{
-		.pwrdm_name = "wkup_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
-	},
-	{ NULL },
-};
-
-/*
- * 2420 PM_WKDEP_MPU: CORE, DSP, WKUP
- * 2430 adds MDM
- */
-static struct pwrdm_dep mpu_24xx_wkdeps[] = {
-	{
-		.pwrdm_name = "core_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
-	},
-	{
-		.pwrdm_name = "dsp_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
-	},
-	{
-		.pwrdm_name = "wkup_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
-	},
-	{
-		.pwrdm_name = "mdm_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430)
-	},
-	{ NULL },
-};
-
-/*
- * 2420 PM_WKDEP_CORE: DSP, GFX, MPU, WKUP
- * 2430 adds MDM
- */
-static struct pwrdm_dep core_24xx_wkdeps[] = {
-	{
-		.pwrdm_name = "dsp_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
-	},
-	{
-		.pwrdm_name = "gfx_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
-	},
-	{
-		.pwrdm_name = "mpu_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
-	},
-	{
-		.pwrdm_name = "wkup_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
-	},
-	{
-		.pwrdm_name = "mdm_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430)
-	},
-	{ NULL },
-};
-
-
 /* Powerdomains */
 
 static struct powerdomain dsp_pwrdm = {
 	.name		  = "dsp_pwrdm",
 	.prcm_offs	  = OMAP24XX_DSP_MOD,
 	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX),
-	.dep_bit	  = OMAP24XX_PM_WKDEP_MPU_EN_DSP_SHIFT,
-	.wkdep_srcs	  = dsp_mdm_24xx_wkdeps,
 	.pwrsts		  = PWRSTS_OFF_RET_ON,
 	.pwrsts_logic_ret = PWRDM_POWER_RET,
 	.banks		  = 1,
@@ -131,8 +53,6 @@ static struct powerdomain mpu_24xx_pwrdm = {
 	.name		  = "mpu_pwrdm",
 	.prcm_offs	  = MPU_MOD,
 	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX),
-	.dep_bit	  = OMAP24XX_EN_MPU_SHIFT,
-	.wkdep_srcs	  = mpu_24xx_wkdeps,
 	.pwrsts		  = PWRSTS_OFF_RET_ON,
 	.pwrsts_logic_ret = PWRSTS_OFF_RET,
 	.banks		  = 1,
@@ -148,9 +68,7 @@ static struct powerdomain core_24xx_pwrdm = {
 	.name		  = "core_pwrdm",
 	.prcm_offs	  = CORE_MOD,
 	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX),
-	.wkdep_srcs	  = core_24xx_wkdeps,
 	.pwrsts		  = PWRSTS_OFF_RET_ON,
-	.dep_bit	  = OMAP24XX_EN_CORE_SHIFT,
 	.banks		  = 3,
 	.pwrsts_mem_ret	  = {
 		[0] = PWRSTS_OFF_RET,	 /* MEM1RETSTATE */
@@ -176,13 +94,10 @@ static struct powerdomain core_24xx_pwrdm = {
 
 /* XXX 2430 KILLDOMAINWKUP bit?  No current users apparently */
 
-/* Another case of bit name collisions between several registers: EN_MDM */
 static struct powerdomain mdm_pwrdm = {
 	.name		  = "mdm_pwrdm",
 	.prcm_offs	  = OMAP2430_MDM_MOD,
 	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP2430),
-	.dep_bit	  = OMAP2430_PM_WKDEP_MPU_EN_MDM_SHIFT,
-	.wkdep_srcs	  = dsp_mdm_24xx_wkdeps,
 	.pwrsts		  = PWRSTS_OFF_RET_ON,
 	.pwrsts_logic_ret = PWRDM_POWER_RET,
 	.banks		  = 1,

arch/arm/mach-omap2/powerdomains34xx.h

@@ -1,8 +1,8 @@
 /*
- * OMAP34XX powerdomain definitions
+ * OMAP3 powerdomain definitions
  *
  * Copyright (C) 2007-2008 Texas Instruments, Inc.
- * Copyright (C) 2007-2008 Nokia Corporation
+ * Copyright (C) 2007-2010 Nokia Corporation
  *
  * Written by Paul Walmsley
  * Debugging and integration fixes by Jouni Högander
@@ -32,128 +32,7 @@
  * 34XX-specific powerdomains, dependencies
  */
 
-#ifdef CONFIG_ARCH_OMAP34XX
-
-/*
- * 3430: PM_WKDEP_{PER,USBHOST}: CORE, IVA2, MPU, WKUP
- * (USBHOST is ES2 only)
- */
-static struct pwrdm_dep per_usbhost_wkdeps[] = {
-	{
-		.pwrdm_name = "core_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
-	},
-	{
-		.pwrdm_name = "iva2_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
-	},
-	{
-		.pwrdm_name = "mpu_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
-	},
-	{
-		.pwrdm_name = "wkup_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
-	},
-	{ NULL },
-};
-
-/*
- * 3430 PM_WKDEP_MPU: CORE, IVA2, DSS, PER
- */
-static struct pwrdm_dep mpu_34xx_wkdeps[] = {
-	{
-		.pwrdm_name = "core_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
-	},
-	{
-		.pwrdm_name = "iva2_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
-	},
-	{
-		.pwrdm_name = "dss_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
-	},
-	{
-		.pwrdm_name = "per_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
-	},
-	{ NULL },
-};
-
-/*
- * 3430 PM_WKDEP_IVA2: CORE, MPU, WKUP, DSS, PER
- */
-static struct pwrdm_dep iva2_wkdeps[] = {
-	{
-		.pwrdm_name = "core_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
-	},
-	{
-		.pwrdm_name = "mpu_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
-	},
-	{
-		.pwrdm_name = "wkup_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
-	},
-	{
-		.pwrdm_name = "dss_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
-	},
-	{
-		.pwrdm_name = "per_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
-	},
-	{ NULL },
-};
-
-
-/* 3430 PM_WKDEP_{CAM,DSS}: IVA2, MPU, WKUP */
-static struct pwrdm_dep cam_dss_wkdeps[] = {
-	{
-		.pwrdm_name = "iva2_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
-	},
-	{
-		.pwrdm_name = "mpu_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
-	},
-	{
-		.pwrdm_name = "wkup_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
-	},
-	{ NULL },
-};
-
-/* 3430: PM_WKDEP_NEON: MPU */
-static struct pwrdm_dep neon_wkdeps[] = {
-	{
-		.pwrdm_name = "mpu_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
-	},
-	{ NULL },
-};
-
-
-/* Sleep dependency source arrays for 34xx-specific pwrdms - 34XX only */
-
-/*
- * 3430: CM_SLEEPDEP_{DSS,PER}: MPU, IVA
- * 3430ES2: CM_SLEEPDEP_USBHOST: MPU, IVA
- */
-static struct pwrdm_dep dss_per_usbhost_sleepdeps[] = {
-	{
-		.pwrdm_name = "mpu_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
-	},
-	{
-		.pwrdm_name = "iva2_pwrdm",
-		.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
-	},
-	{ NULL },
-};
-
+#ifdef CONFIG_ARCH_OMAP3
 
 /*
  * Powerdomains
@@ -163,8 +42,6 @@ static struct powerdomain iva2_pwrdm = {
 	.name		  = "iva2_pwrdm",
 	.prcm_offs	  = OMAP3430_IVA2_MOD,
 	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
-	.dep_bit	  = OMAP3430_PM_WKDEP_MPU_EN_IVA2_SHIFT,
-	.wkdep_srcs	  = iva2_wkdeps,
 	.pwrsts		  = PWRSTS_OFF_RET_ON,
 	.pwrsts_logic_ret = PWRSTS_OFF_RET,
 	.banks		  = 4,
@@ -182,12 +59,10 @@ static struct powerdomain iva2_pwrdm = {
 	},
 };
 
-static struct powerdomain mpu_34xx_pwrdm = {
+static struct powerdomain mpu_3xxx_pwrdm = {
 	.name		  = "mpu_pwrdm",
 	.prcm_offs	  = MPU_MOD,
 	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
-	.dep_bit	  = OMAP3430_EN_MPU_SHIFT,
-	.wkdep_srcs	  = mpu_34xx_wkdeps,
 	.pwrsts		  = PWRSTS_OFF_RET_ON,
 	.pwrsts_logic_ret = PWRSTS_OFF_RET,
 	.flags		  = PWRDM_HAS_MPU_QUIRK,
@@ -200,15 +75,13 @@ static struct powerdomain mpu_34xx_pwrdm = {
 	},
 };
 
-/* No wkdeps or sleepdeps for 34xx core apparently */
-static struct powerdomain core_34xx_pre_es3_1_pwrdm = {
+static struct powerdomain core_3xxx_pre_es3_1_pwrdm = {
 	.name		  = "core_pwrdm",
 	.prcm_offs	  = CORE_MOD,
 	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP3430ES1 |
 					   CHIP_IS_OMAP3430ES2 |
 					   CHIP_IS_OMAP3430ES3_0),
 	.pwrsts		  = PWRSTS_OFF_RET_ON,
-	.dep_bit	  = OMAP3430_EN_CORE_SHIFT,
 	.banks		  = 2,
 	.pwrsts_mem_ret	  = {
 		[0] = PWRSTS_OFF_RET,	 /* MEM1RETSTATE */
@@ -220,13 +93,11 @@ static struct powerdomain core_34xx_pre_es3_1_pwrdm = {
 	},
 };
 
-/* No wkdeps or sleepdeps for 34xx core apparently */
-static struct powerdomain core_34xx_es3_1_pwrdm = {
+static struct powerdomain core_3xxx_es3_1_pwrdm = {
 	.name		  = "core_pwrdm",
 	.prcm_offs	  = CORE_MOD,
 	.omap_chip	  = OMAP_CHIP_INIT(CHIP_GE_OMAP3430ES3_1),
 	.pwrsts		  = PWRSTS_OFF_RET_ON,
-	.dep_bit	  = OMAP3430_EN_CORE_SHIFT,
 	.flags		  = PWRDM_HAS_HDWR_SAR, /* for USBTLL only */
 	.banks		  = 2,
 	.pwrsts_mem_ret	  = {
@@ -239,14 +110,10 @@ static struct powerdomain core_34xx_es3_1_pwrdm = {
 	},
 };
 
-/* Another case of bit name collisions between several registers: EN_DSS */
 static struct powerdomain dss_pwrdm = {
 	.name		  = "dss_pwrdm",
 	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
 	.prcm_offs	  = OMAP3430_DSS_MOD,
-	.dep_bit	  = OMAP3430_PM_WKDEP_MPU_EN_DSS_SHIFT,
-	.wkdep_srcs	  = cam_dss_wkdeps,
-	.sleepdep_srcs	  = dss_per_usbhost_sleepdeps,
 	.pwrsts		  = PWRSTS_OFF_RET_ON,
 	.pwrsts_logic_ret = PWRDM_POWER_RET,
 	.banks		  = 1,
@@ -267,8 +134,6 @@ static struct powerdomain sgx_pwrdm = {
 	.name		  = "sgx_pwrdm",
 	.prcm_offs	  = OMAP3430ES2_SGX_MOD,
 	.omap_chip	  = OMAP_CHIP_INIT(CHIP_GE_OMAP3430ES2),
-	.wkdep_srcs	  = gfx_sgx_wkdeps,
-	.sleepdep_srcs	  = cam_gfx_sleepdeps,
 	/* XXX This is accurate for 3430 SGX, but what about GFX? */
 	.pwrsts		  = PWRSTS_OFF_ON,
 	.pwrsts_logic_ret = PWRDM_POWER_RET,
@@ -285,8 +150,6 @@ static struct powerdomain cam_pwrdm = {
 	.name		  = "cam_pwrdm",
 	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
 	.prcm_offs	  = OMAP3430_CAM_MOD,
-	.wkdep_srcs	  = cam_dss_wkdeps,
-	.sleepdep_srcs	  = cam_gfx_sleepdeps,
 	.pwrsts		  = PWRSTS_OFF_RET_ON,
 	.pwrsts_logic_ret = PWRDM_POWER_RET,
 	.banks		  = 1,
@@ -302,9 +165,6 @@ static struct powerdomain per_pwrdm = {
 	.name		  = "per_pwrdm",
 	.prcm_offs	  = OMAP3430_PER_MOD,
 	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
-	.dep_bit	  = OMAP3430_EN_PER_SHIFT,
-	.wkdep_srcs	  = per_usbhost_wkdeps,
-	.sleepdep_srcs	  = dss_per_usbhost_sleepdeps,
 	.pwrsts		  = PWRSTS_OFF_RET_ON,
 	.pwrsts_logic_ret = PWRSTS_OFF_RET,
 	.banks		  = 1,
@@ -326,7 +186,6 @@ static struct powerdomain neon_pwrdm = {
 	.name		  = "neon_pwrdm",
 	.prcm_offs	  = OMAP3430_NEON_MOD,
 	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
-	.wkdep_srcs	  = neon_wkdeps,
 	.pwrsts		  = PWRSTS_OFF_RET_ON,
 	.pwrsts_logic_ret = PWRDM_POWER_RET,
 };
@@ -335,8 +194,6 @@ static struct powerdomain usbhost_pwrdm = {
 	.name		  = "usbhost_pwrdm",
 	.prcm_offs	  = OMAP3430ES2_USBHOST_MOD,
 	.omap_chip	  = OMAP_CHIP_INIT(CHIP_GE_OMAP3430ES2),
-	.wkdep_srcs	  = per_usbhost_wkdeps,
-	.sleepdep_srcs	  = dss_per_usbhost_sleepdeps,
 	.pwrsts		  = PWRSTS_OFF_RET_ON,
 	.pwrsts_logic_ret = PWRDM_POWER_RET,
 	/*
@@ -386,7 +243,7 @@ static struct powerdomain dpll5_pwrdm = {
 };
 
 
-#endif    /* CONFIG_ARCH_OMAP34XX */
+#endif    /* CONFIG_ARCH_OMAP3 */
 
 
 #endif

arch/arm/mach-omap2/powerdomains44xx.h

@@ -0,0 +1,310 @@
+/*
+ * OMAP4 Power domains framework
+ *
+ * Copyright (C) 2009 Texas Instruments, Inc.
+ * Copyright (C) 2009 Nokia Corporation
+ *
+ * Abhijit Pagare (abhijitpagare@ti.com)
+ * Benoit Cousson (b-cousson@ti.com)
+ * Paul Walmsley
+ *
+ * This file is automatically generated from the OMAP hardware databases.
+ * We respectfully ask that any modifications to this file be coordinated
+ * with the public linux-omap@vger.kernel.org mailing list and the
+ * authors above to ensure that the autogeneration scripts are kept
+ * up-to-date with the file contents.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __ARCH_ARM_MACH_OMAP2_POWERDOMAINS44XX_H
+#define __ARCH_ARM_MACH_OMAP2_POWERDOMAINS44XX_H
+
+#include <plat/powerdomain.h>
+
+#include "prcm-common.h"
+#include "cm.h"
+#include "cm-regbits-44xx.h"
+#include "prm.h"
+#include "prm-regbits-44xx.h"
+
+#if defined(CONFIG_ARCH_OMAP4)
+
+/* core_44xx_pwrdm: CORE power domain */
+static struct powerdomain core_44xx_pwrdm = {
+	.name		  = "core_pwrdm",
+	.prcm_offs	  = OMAP4430_PRM_CORE_MOD,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+	.pwrsts		  = PWRSTS_RET_ON,
+	.pwrsts_logic_ret = PWRSTS_OFF_RET,
+	.banks		  = 5,
+	.pwrsts_mem_ret	= {
+		[0] = PWRDM_POWER_OFF,	/* core_nret_bank */
+		[1] = PWRSTS_OFF_RET,	/* core_ocmram */
+		[2] = PWRDM_POWER_RET,	/* core_other_bank */
+		[3] = PWRSTS_OFF_RET,	/* ducati_l2ram */
+		[4] = PWRSTS_OFF_RET,	/* ducati_unicache */
+	},
+	.pwrsts_mem_on	= {
+		[0] = PWRDM_POWER_ON,	/* core_nret_bank */
+		[1] = PWRSTS_OFF_RET,	/* core_ocmram */
+		[2] = PWRDM_POWER_ON,	/* core_other_bank */
+		[3] = PWRDM_POWER_ON,	/* ducati_l2ram */
+		[4] = PWRDM_POWER_ON,	/* ducati_unicache */
+	},
+};
+
+/* gfx_44xx_pwrdm: 3D accelerator power domain */
+static struct powerdomain gfx_44xx_pwrdm = {
+	.name		  = "gfx_pwrdm",
+	.prcm_offs	  = OMAP4430_PRM_GFX_MOD,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+	.pwrsts		  = PWRSTS_OFF_ON,
+	.banks		  = 1,
+	.pwrsts_mem_ret	= {
+		[0] = PWRDM_POWER_OFF,	/* gfx_mem */
+	},
+	.pwrsts_mem_on	= {
+		[0] = PWRDM_POWER_ON,	/* gfx_mem */
+	},
+};
+
+/* abe_44xx_pwrdm: Audio back end power domain */
+static struct powerdomain abe_44xx_pwrdm = {
+	.name		  = "abe_pwrdm",
+	.prcm_offs	  = OMAP4430_PRM_ABE_MOD,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+	.pwrsts		  = PWRSTS_OFF_RET_ON,
+	.pwrsts_logic_ret = PWRDM_POWER_OFF,
+	.banks		  = 2,
+	.pwrsts_mem_ret	= {
+		[0] = PWRDM_POWER_RET,	/* aessmem */
+		[1] = PWRDM_POWER_OFF,	/* periphmem */
+	},
+	.pwrsts_mem_on	= {
+		[0] = PWRDM_POWER_ON,	/* aessmem */
+		[1] = PWRDM_POWER_ON,	/* periphmem */
+	},
+};
+
+/* dss_44xx_pwrdm: Display subsystem power domain */
+static struct powerdomain dss_44xx_pwrdm = {
+	.name		  = "dss_pwrdm",
+	.prcm_offs	  = OMAP4430_PRM_DSS_MOD,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+	.pwrsts		  = PWRSTS_OFF_RET_ON,
+	.pwrsts_logic_ret = PWRSTS_OFF_RET,
+	.banks		  = 1,
+	.pwrsts_mem_ret	= {
+		[0] = PWRDM_POWER_OFF,	/* dss_mem */
+	},
+	.pwrsts_mem_on	= {
+		[0] = PWRDM_POWER_ON,	/* dss_mem */
+	},
+};
+
+/* tesla_44xx_pwrdm: Tesla processor power domain */
+static struct powerdomain tesla_44xx_pwrdm = {
+	.name		  = "tesla_pwrdm",
+	.prcm_offs	  = OMAP4430_PRM_TESLA_MOD,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+	.pwrsts		  = PWRSTS_OFF_RET_ON,
+	.pwrsts_logic_ret = PWRSTS_OFF_RET,
+	.banks		  = 3,
+	.pwrsts_mem_ret	= {
+		[0] = PWRDM_POWER_RET,	/* tesla_edma */
+		[1] = PWRSTS_OFF_RET,	/* tesla_l1 */
+		[2] = PWRSTS_OFF_RET,	/* tesla_l2 */
+	},
+	.pwrsts_mem_on	= {
+		[0] = PWRDM_POWER_ON,	/* tesla_edma */
+		[1] = PWRDM_POWER_ON,	/* tesla_l1 */
+		[2] = PWRDM_POWER_ON,	/* tesla_l2 */
+	},
+};
+
+/* wkup_44xx_pwrdm: Wake-up power domain */
+static struct powerdomain wkup_44xx_pwrdm = {
+	.name		  = "wkup_pwrdm",
+	.prcm_offs	  = OMAP4430_PRM_WKUP_MOD,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+	.pwrsts		  = PWRDM_POWER_ON,
+	.banks		  = 1,
+	.pwrsts_mem_ret	= {
+		[0] = PWRDM_POWER_OFF,	/* wkup_bank */
+	},
+	.pwrsts_mem_on	= {
+		[0] = PWRDM_POWER_ON,	/* wkup_bank */
+	},
+};
+
+/* cpu0_44xx_pwrdm: MPU0 processor and Neon coprocessor power domain */
+static struct powerdomain cpu0_44xx_pwrdm = {
+	.name		  = "cpu0_pwrdm",
+	.prcm_offs	  = OMAP4430_CHIRONSS_CHIRONSS_CPU0_MOD,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+	.pwrsts		  = PWRSTS_OFF_RET_ON,
+	.pwrsts_logic_ret = PWRSTS_OFF_RET,
+	.banks		  = 1,
+	.pwrsts_mem_ret	= {
+		[0] = PWRSTS_OFF_RET,	/* cpu0_l1 */
+	},
+	.pwrsts_mem_on	= {
+		[0] = PWRDM_POWER_ON,	/* cpu0_l1 */
+	},
+};
+
+/* cpu1_44xx_pwrdm: MPU1 processor and Neon coprocessor power domain */
+static struct powerdomain cpu1_44xx_pwrdm = {
+	.name		  = "cpu1_pwrdm",
+	.prcm_offs	  = OMAP4430_CHIRONSS_CHIRONSS_CPU1_MOD,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+	.pwrsts		  = PWRSTS_OFF_RET_ON,
+	.pwrsts_logic_ret = PWRSTS_OFF_RET,
+	.banks		  = 1,
+	.pwrsts_mem_ret	= {
+		[0] = PWRSTS_OFF_RET,	/* cpu1_l1 */
+	},
+	.pwrsts_mem_on	= {
+		[0] = PWRDM_POWER_ON,	/* cpu1_l1 */
+	},
+};
+
+/* emu_44xx_pwrdm: Emulation power domain */
+static struct powerdomain emu_44xx_pwrdm = {
+	.name		  = "emu_pwrdm",
+	.prcm_offs	  = OMAP4430_PRM_EMU_MOD,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+	.pwrsts		  = PWRSTS_OFF_ON,
+	.banks		  = 1,
+	.pwrsts_mem_ret	= {
+		[0] = PWRDM_POWER_OFF,	/* emu_bank */
+	},
+	.pwrsts_mem_on	= {
+		[0] = PWRDM_POWER_ON,	/* emu_bank */
+	},
+};
+
+/* mpu_44xx_pwrdm: Modena processor and the Neon coprocessor power domain */
+static struct powerdomain mpu_44xx_pwrdm = {
+	.name		  = "mpu_pwrdm",
+	.prcm_offs	  = OMAP4430_PRM_MPU_MOD,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+	.pwrsts		  = PWRSTS_OFF_RET_ON,
+	.pwrsts_logic_ret = PWRSTS_OFF_RET,
+	.banks		  = 3,
+	.pwrsts_mem_ret	= {
+		[0] = PWRSTS_OFF_RET,	/* mpu_l1 */
+		[1] = PWRSTS_OFF_RET,	/* mpu_l2 */
+		[2] = PWRDM_POWER_RET,	/* mpu_ram */
+	},
+	.pwrsts_mem_on	= {
+		[0] = PWRDM_POWER_ON,	/* mpu_l1 */
+		[1] = PWRDM_POWER_ON,	/* mpu_l2 */
+		[2] = PWRDM_POWER_ON,	/* mpu_ram */
+	},
+};
+
+/* ivahd_44xx_pwrdm: IVA-HD power domain */
+static struct powerdomain ivahd_44xx_pwrdm = {
+	.name		  = "ivahd_pwrdm",
+	.prcm_offs	  = OMAP4430_PRM_IVAHD_MOD,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+	.pwrsts		  = PWRSTS_OFF_RET_ON,
+	.pwrsts_logic_ret = PWRDM_POWER_OFF,
+	.banks		  = 4,
+	.pwrsts_mem_ret	= {
+		[0] = PWRDM_POWER_OFF,	/* hwa_mem */
+		[1] = PWRSTS_OFF_RET,	/* sl2_mem */
+		[2] = PWRSTS_OFF_RET,	/* tcm1_mem */
+		[3] = PWRSTS_OFF_RET,	/* tcm2_mem */
+	},
+	.pwrsts_mem_on	= {
+		[0] = PWRDM_POWER_ON,	/* hwa_mem */
+		[1] = PWRDM_POWER_ON,	/* sl2_mem */
+		[2] = PWRDM_POWER_ON,	/* tcm1_mem */
+		[3] = PWRDM_POWER_ON,	/* tcm2_mem */
+	},
+};
+
+/* cam_44xx_pwrdm: Camera subsystem power domain */
+static struct powerdomain cam_44xx_pwrdm = {
+	.name		  = "cam_pwrdm",
+	.prcm_offs	  = OMAP4430_PRM_CAM_MOD,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+	.pwrsts		  = PWRSTS_OFF_ON,
+	.banks		  = 1,
+	.pwrsts_mem_ret	= {
+		[0] = PWRDM_POWER_OFF,	/* cam_mem */
+	},
+	.pwrsts_mem_on	= {
+		[0] = PWRDM_POWER_ON,	/* cam_mem */
+	},
+};
+
+/* l3init_44xx_pwrdm: L3 initators pheripherals power domain  */
+static struct powerdomain l3init_44xx_pwrdm = {
+	.name		  = "l3init_pwrdm",
+	.prcm_offs	  = OMAP4430_PRM_L3INIT_MOD,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+	.pwrsts		  = PWRSTS_OFF_RET_ON,
+	.pwrsts_logic_ret = PWRSTS_OFF_RET,
+	.banks		  = 1,
+	.pwrsts_mem_ret	= {
+		[0] = PWRDM_POWER_OFF,	/* l3init_bank1 */
+	},
+	.pwrsts_mem_on	= {
+		[0] = PWRDM_POWER_ON,	/* l3init_bank1 */
+	},
+};
+
+/* l4per_44xx_pwrdm: Target peripherals power domain */
+static struct powerdomain l4per_44xx_pwrdm = {
+	.name		  = "l4per_pwrdm",
+	.prcm_offs	  = OMAP4430_PRM_L4PER_MOD,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+	.pwrsts		  = PWRSTS_OFF_RET_ON,
+	.pwrsts_logic_ret = PWRSTS_OFF_RET,
+	.banks		  = 2,
+	.pwrsts_mem_ret	= {
+		[0] = PWRDM_POWER_OFF,	/* nonretained_bank */
+		[1] = PWRDM_POWER_RET,	/* retained_bank */
+	},
+	.pwrsts_mem_on	= {
+		[0] = PWRDM_POWER_ON,	/* nonretained_bank */
+		[1] = PWRDM_POWER_ON,	/* retained_bank */
+	},
+};
+
+/*
+ * always_on_core_44xx_pwrdm: Always ON logic that sits in VDD_CORE voltage
+ * domain
+ */
+static struct powerdomain always_on_core_44xx_pwrdm = {
+	.name		  = "always_on_core_pwrdm",
+	.prcm_offs	  = OMAP4430_PRM_ALWAYS_ON_MOD,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+	.pwrsts		  = PWRDM_POWER_ON,
+};
+
+/* cefuse_44xx_pwrdm: Customer efuse controller power domain */
+static struct powerdomain cefuse_44xx_pwrdm = {
+	.name		  = "cefuse_pwrdm",
+	.prcm_offs	  = OMAP4430_PRM_CEFUSE_MOD,
+	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+	.pwrsts		  = PWRSTS_OFF_ON,
+};
+
+/*
+ * The following power domains are not under SW control
+ *
+ * always_on_iva
+ * always_on_mpu
+ * stdefuse
+ */
+
+#endif
+
+#endif

arch/arm/mach-omap2/prcm-common.h

@@ -119,6 +119,15 @@
 #define OMAP4430_CHIRONSS_CHIRONSS_CPU0_MOD		0x0400
 #define OMAP4430_CHIRONSS_CHIRONSS_CPU1_MOD		0x0800
 
+/* Base Addresses for the OMAP4 */
+
+#define OMAP4430_CM1_BASE		0x4a004000
+#define OMAP4430_CM2_BASE		0x4a008000
+#define OMAP4430_PRM_BASE		0x4a306000
+#define OMAP4430_SCRM_BASE		0x4a30a000
+#define OMAP4430_CHIRONSS_BASE		0x48243000
+
+
 /* 24XX register bits shared between CM & PRM registers */
 
 /* CM_FCLKEN1_CORE, CM_ICLKEN1_CORE, PM_WKEN1_CORE shared bits */

arch/arm/mach-omap2/prcm.c

@@ -11,6 +11,7 @@
  * Rajendra Nayak <rnayak@ti.com>
  *
  * Some pieces of code Copyright (C) 2005 Texas Instruments, Inc.
+ * Upgraded with OMAP4 support by Abhijit Pagare <abhijitpagare@ti.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -28,6 +29,7 @@
 #include <plat/control.h>
 
 #include "clock.h"
+#include "clock2xxx.h"
 #include "cm.h"
 #include "prm.h"
 #include "prm-regbits-24xx.h"
@@ -121,7 +123,10 @@ struct omap3_prcm_regs prcm_context;
 u32 omap_prcm_get_reset_sources(void)
 {
 	/* XXX This presumably needs modification for 34XX */
-	return prm_read_mod_reg(WKUP_MOD, RM_RSTST) & 0x7f;
+	if (cpu_is_omap24xx() | cpu_is_omap34xx())
+		return prm_read_mod_reg(WKUP_MOD, OMAP2_RM_RSTST) & 0x7f;
+	if (cpu_is_omap44xx())
+		return prm_read_mod_reg(WKUP_MOD, OMAP4_RM_RSTST) & 0x7f;
 }
 EXPORT_SYMBOL(omap_prcm_get_reset_sources);
 
@@ -129,11 +134,12 @@ EXPORT_SYMBOL(omap_prcm_get_reset_sources);
 void omap_prcm_arch_reset(char mode)
 {
 	s16 prcm_offs;
-	omap2_clk_prepare_for_reboot();
 
-	if (cpu_is_omap24xx())
+	if (cpu_is_omap24xx()) {
+		omap2xxx_clk_prepare_for_reboot();
+
 		prcm_offs = WKUP_MOD;
-	else if (cpu_is_omap34xx()) {
+	} else if (cpu_is_omap34xx()) {
 		u32 l;
 
 		prcm_offs = OMAP3430_GR_MOD;
@@ -144,10 +150,17 @@ void omap_prcm_arch_reset(char mode)
 		 * cf. OMAP34xx TRM, Initialization / Software Booting
 		 * Configuration. */
 		omap_writel(l, OMAP343X_SCRATCHPAD + 4);
-	} else
+	} else if (cpu_is_omap44xx())
+		prcm_offs = OMAP4430_PRM_DEVICE_MOD;
+	else
 		WARN_ON(1);
 
-	prm_set_mod_reg_bits(OMAP_RST_DPLL3, prcm_offs, RM_RSTCTRL);
+	if (cpu_is_omap24xx() | cpu_is_omap34xx())
+		prm_set_mod_reg_bits(OMAP_RST_DPLL3, prcm_offs,
+						 OMAP2_RM_RSTCTRL);
+	if (cpu_is_omap44xx())
+		prm_set_mod_reg_bits(OMAP_RST_DPLL3, prcm_offs,
+						 OMAP4_RM_RSTCTRL);
 }
 
 static inline u32 __omap_prcm_read(void __iomem *base, s16 module, u16 reg)
@@ -188,6 +201,18 @@ u32 prm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, s16 idx)
 	return v;
 }
 
+/* Read a PRM register, AND it, and shift the result down to bit 0 */
+u32 prm_read_mod_bits_shift(s16 domain, s16 idx, u32 mask)
+{
+	u32 v;
+
+	v = prm_read_mod_reg(domain, idx);
+	v &= mask;
+	v >>= __ffs(mask);
+
+	return v;
+}
+
 /* Read a register in a CM module */
 u32 cm_read_mod_reg(s16 module, u16 idx)
 {
@@ -280,7 +305,7 @@ void omap3_prcm_save_context(void)
 	prcm_context.emu_cm_clksel =
 			 cm_read_mod_reg(OMAP3430_EMU_MOD, CM_CLKSEL1);
 	prcm_context.emu_cm_clkstctrl =
-			 cm_read_mod_reg(OMAP3430_EMU_MOD, CM_CLKSTCTRL);
+			 cm_read_mod_reg(OMAP3430_EMU_MOD, OMAP2_CM_CLKSTCTRL);
 	prcm_context.pll_cm_autoidle2 =
 			 cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE2);
 	prcm_context.pll_cm_clksel4 =
@@ -333,23 +358,25 @@ void omap3_prcm_save_context(void)
 	prcm_context.mpu_cm_autoidle2 =
 			 cm_read_mod_reg(MPU_MOD, CM_AUTOIDLE2);
 	prcm_context.iva2_cm_clkstctrl =
-			 cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_CLKSTCTRL);
+			 cm_read_mod_reg(OMAP3430_IVA2_MOD, OMAP2_CM_CLKSTCTRL);
 	prcm_context.mpu_cm_clkstctrl =
-			 cm_read_mod_reg(MPU_MOD, CM_CLKSTCTRL);
+			 cm_read_mod_reg(MPU_MOD, OMAP2_CM_CLKSTCTRL);
 	prcm_context.core_cm_clkstctrl =
-			 cm_read_mod_reg(CORE_MOD, CM_CLKSTCTRL);
+			 cm_read_mod_reg(CORE_MOD, OMAP2_CM_CLKSTCTRL);
 	prcm_context.sgx_cm_clkstctrl =
-			 cm_read_mod_reg(OMAP3430ES2_SGX_MOD, CM_CLKSTCTRL);
+			 cm_read_mod_reg(OMAP3430ES2_SGX_MOD,
+						OMAP2_CM_CLKSTCTRL);
 	prcm_context.dss_cm_clkstctrl =
-			 cm_read_mod_reg(OMAP3430_DSS_MOD, CM_CLKSTCTRL);
+			 cm_read_mod_reg(OMAP3430_DSS_MOD, OMAP2_CM_CLKSTCTRL);
 	prcm_context.cam_cm_clkstctrl =
-			 cm_read_mod_reg(OMAP3430_CAM_MOD, CM_CLKSTCTRL);
+			 cm_read_mod_reg(OMAP3430_CAM_MOD, OMAP2_CM_CLKSTCTRL);
 	prcm_context.per_cm_clkstctrl =
-			 cm_read_mod_reg(OMAP3430_PER_MOD, CM_CLKSTCTRL);
+			 cm_read_mod_reg(OMAP3430_PER_MOD, OMAP2_CM_CLKSTCTRL);
 	prcm_context.neon_cm_clkstctrl =
-			 cm_read_mod_reg(OMAP3430_NEON_MOD, CM_CLKSTCTRL);
+			 cm_read_mod_reg(OMAP3430_NEON_MOD, OMAP2_CM_CLKSTCTRL);
 	prcm_context.usbhost_cm_clkstctrl =
-			 cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, CM_CLKSTCTRL);
+			 cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD,
+						OMAP2_CM_CLKSTCTRL);
 	prcm_context.core_cm_autoidle1 =
 			 cm_read_mod_reg(CORE_MOD, CM_AUTOIDLE1);
 	prcm_context.core_cm_autoidle2 =
@@ -432,7 +459,7 @@ void omap3_prcm_restore_context(void)
 	cm_write_mod_reg(prcm_context.emu_cm_clksel, OMAP3430_EMU_MOD,
 					 CM_CLKSEL1);
 	cm_write_mod_reg(prcm_context.emu_cm_clkstctrl, OMAP3430_EMU_MOD,
-					 CM_CLKSTCTRL);
+					 OMAP2_CM_CLKSTCTRL);
 	cm_write_mod_reg(prcm_context.pll_cm_autoidle2, PLL_MOD,
 					 CM_AUTOIDLE2);
 	cm_write_mod_reg(prcm_context.pll_cm_clksel4, PLL_MOD,
@@ -478,22 +505,23 @@ void omap3_prcm_restore_context(void)
 					CM_AUTOIDLE2);
 	cm_write_mod_reg(prcm_context.mpu_cm_autoidle2, MPU_MOD, CM_AUTOIDLE2);
 	cm_write_mod_reg(prcm_context.iva2_cm_clkstctrl, OMAP3430_IVA2_MOD,
-					CM_CLKSTCTRL);
-	cm_write_mod_reg(prcm_context.mpu_cm_clkstctrl, MPU_MOD, CM_CLKSTCTRL);
+					OMAP2_CM_CLKSTCTRL);
+	cm_write_mod_reg(prcm_context.mpu_cm_clkstctrl, MPU_MOD,
+					OMAP2_CM_CLKSTCTRL);
 	cm_write_mod_reg(prcm_context.core_cm_clkstctrl, CORE_MOD,
-					CM_CLKSTCTRL);
+					OMAP2_CM_CLKSTCTRL);
 	cm_write_mod_reg(prcm_context.sgx_cm_clkstctrl, OMAP3430ES2_SGX_MOD,
-					CM_CLKSTCTRL);
+					OMAP2_CM_CLKSTCTRL);
 	cm_write_mod_reg(prcm_context.dss_cm_clkstctrl, OMAP3430_DSS_MOD,
-					CM_CLKSTCTRL);
+					OMAP2_CM_CLKSTCTRL);
 	cm_write_mod_reg(prcm_context.cam_cm_clkstctrl, OMAP3430_CAM_MOD,
-					CM_CLKSTCTRL);
+					OMAP2_CM_CLKSTCTRL);
 	cm_write_mod_reg(prcm_context.per_cm_clkstctrl, OMAP3430_PER_MOD,
-					CM_CLKSTCTRL);
+					OMAP2_CM_CLKSTCTRL);
 	cm_write_mod_reg(prcm_context.neon_cm_clkstctrl, OMAP3430_NEON_MOD,
-					CM_CLKSTCTRL);
+					OMAP2_CM_CLKSTCTRL);
 	cm_write_mod_reg(prcm_context.usbhost_cm_clkstctrl,
-					OMAP3430ES2_USBHOST_MOD, CM_CLKSTCTRL);
+				OMAP3430ES2_USBHOST_MOD, OMAP2_CM_CLKSTCTRL);
 	cm_write_mod_reg(prcm_context.core_cm_autoidle1, CORE_MOD,
 					CM_AUTOIDLE1);
 	cm_write_mod_reg(prcm_context.core_cm_autoidle2, CORE_MOD,

arch/arm/mach-omap2/prm.h

@@ -179,9 +179,11 @@
 
 /* Registers appearing on both 24xx and 34xx */
 
-#define RM_RSTCTRL					0x0050
-#define RM_RSTTIME					0x0054
-#define RM_RSTST					0x0058
+#define OMAP2_RM_RSTCTRL				0x0050
+#define OMAP2_RM_RSTTIME				0x0054
+#define OMAP2_RM_RSTST					0x0058
+#define OMAP2_PM_PWSTCTRL				0x00e0
+#define OMAP2_PM_PWSTST					0x00e4
 
 #define PM_WKEN						0x00a0
 #define PM_WKEN1					PM_WKEN
@@ -191,8 +193,6 @@
 #define PM_EVGENCTRL					0x00d4
 #define PM_EVGENONTIM					0x00d8
 #define PM_EVGENOFFTIM					0x00dc
-#define PM_PWSTCTRL					0x00e0
-#define PM_PWSTST					0x00e4
 
 /* Omap2 specific registers */
 #define OMAP24XX_PM_WKEN2				0x00a4
@@ -220,6 +220,13 @@
 #define OMAP3430_PRM_IRQSTATUS_IVA2			0x00f8
 #define OMAP3430_PRM_IRQENABLE_IVA2			0x00fc
 
+/* Omap4 specific registers */
+#define OMAP4_RM_RSTCTRL				0x0000
+#define OMAP4_RM_RSTTIME				0x0004
+#define OMAP4_RM_RSTST					0x0008
+#define OMAP4_PM_PWSTCTRL				0x0000
+#define OMAP4_PM_PWSTST					0x0004
+
 
 #ifndef __ASSEMBLER__
 

arch/arm/mach-omap2/sleep34xx.S

@@ -38,7 +38,7 @@
 #define PM_PREPWSTST_CORE_P	0x48306AE8
 #define PM_PREPWSTST_MPU_V	OMAP34XX_PRM_REGADDR(MPU_MOD, \
 				OMAP3430_PM_PREPWSTST)
-#define PM_PWSTCTRL_MPU_P	OMAP3430_PRM_BASE + MPU_MOD + PM_PWSTCTRL
+#define PM_PWSTCTRL_MPU_P	OMAP3430_PRM_BASE + MPU_MOD + OMAP2_PM_PWSTCTRL
 #define CM_IDLEST1_CORE_V	OMAP34XX_CM_REGADDR(CORE_MOD, CM_IDLEST1)
 #define SRAM_BASE_P		0x40200000
 #define CONTROL_STAT		0x480022F0

arch/arm/plat-omap/clock.c

@@ -173,7 +173,7 @@ EXPORT_SYMBOL(clk_get_parent);
  * OMAP specific clock functions shared between omap1 and omap2
  *-------------------------------------------------------------------------*/
 
-unsigned int __initdata mpurate;
+int __initdata mpurate;
 
 /*
  * By default we use the rate set by the bootloader.
@@ -199,6 +199,17 @@ unsigned long followparent_recalc(struct clk *clk)
 	return clk->parent->rate;
 }
 
+/*
+ * Used for clocks that have the same value as the parent clock,
+ * divided by some factor
+ */
+unsigned long omap_fixed_divisor_recalc(struct clk *clk)
+{
+	WARN_ON(!clk->fixed_div);
+
+	return clk->parent->rate / clk->fixed_div;
+}
+
 void clk_reparent(struct clk *child, struct clk *parent)
 {
 	list_del_init(&child->sibling);

arch/arm/plat-omap/include/plat/clkdev_omap.h

@@ -25,17 +25,25 @@ struct omap_clk {
 		},			\
 	}
 
-
+/* Platform flags for the clkdev-OMAP integration code */
 #define CK_310		(1 << 0)
-#define CK_7XX		(1 << 1)
+#define CK_7XX		(1 << 1)	/* 7xx, 850 */
 #define CK_1510		(1 << 2)
-#define CK_16XX		(1 << 3)
-#define CK_243X		(1 << 4)
-#define CK_242X		(1 << 5)
-#define CK_343X		(1 << 6)
-#define CK_3430ES1	(1 << 7)
-#define CK_3430ES2	(1 << 8)
-#define CK_443X		(1 << 9)
+#define CK_16XX		(1 << 3)	/* 16xx, 17xx, 5912 */
+#define CK_242X		(1 << 4)
+#define CK_243X		(1 << 5)
+#define CK_3XXX		(1 << 6)	/* OMAP3 + AM3 common clocks*/
+#define CK_343X		(1 << 7)	/* OMAP34xx common clocks */
+#define CK_3430ES1	(1 << 8)	/* 34xxES1 only */
+#define CK_3430ES2	(1 << 9)	/* 34xxES2, ES3, non-Sitara 35xx only */
+#define CK_3505		(1 << 10)
+#define CK_3517		(1 << 11)
+#define CK_36XX		(1 << 12)	/* OMAP36xx/37xx-specific clocks */
+#define CK_443X		(1 << 13)
+
+#define CK_AM35XX	(CK_3505 | CK_3517)	/* all Sitara AM35xx */
+
+
 
 #endif
 

arch/arm/plat-omap/include/plat/clock.h

@@ -88,9 +88,9 @@ struct clk {
 	void			(*init)(struct clk *);
 	__u8			enable_bit;
 	__s8			usecount;
+	u8			fixed_div;
 #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) || \
 		defined(CONFIG_ARCH_OMAP4)
-	u8			fixed_div;
 	void __iomem		*clksel_reg;
 	u32			clksel_mask;
 	const struct clksel	*clksel;
@@ -123,7 +123,7 @@ struct clk_functions {
 #endif
 };
 
-extern unsigned int mpurate;
+extern int mpurate;
 
 extern int clk_init(struct clk_functions *custom_clocks);
 extern void clk_preinit(struct clk *clk);
@@ -134,6 +134,7 @@ extern void propagate_rate(struct clk *clk);
 extern void recalculate_root_clocks(void);
 extern unsigned long followparent_recalc(struct clk *clk);
 extern void clk_enable_init_clocks(void);
+unsigned long omap_fixed_divisor_recalc(struct clk *clk);
 #ifdef CONFIG_CPU_FREQ
 extern void clk_init_cpufreq_table(struct cpufreq_frequency_table **table);
 extern void clk_exit_cpufreq_table(struct cpufreq_frequency_table **table);

arch/arm/plat-omap/include/plat/clockdomain.h

@@ -4,7 +4,7 @@
  * OMAP2/3 clockdomain framework functions
  *
  * Copyright (C) 2008 Texas Instruments, Inc.
- * Copyright (C) 2008 Nokia Corporation
+ * Copyright (C) 2008-2009 Nokia Corporation
  *
  * Written by Paul Walmsley
  *
@@ -40,65 +40,95 @@
 #define OMAP34XX_CLKSTCTRL_FORCE_WAKEUP		0x2
 #define OMAP34XX_CLKSTCTRL_ENABLE_AUTO		0x3
 
-/*
- * struct clkdm_pwrdm_autodep - a powerdomain that should have wkdeps
- * and sleepdeps added when a powerdomain should stay active in hwsup mode;
- * and conversely, removed when the powerdomain should be allowed to go
- * inactive in hwsup mode.
+/**
+ * struct clkdm_autodep - clkdm deps to add when entering/exiting hwsup mode
+ * @clkdm: clockdomain to add wkdep+sleepdep on - set name member only
+ * @omap_chip: OMAP chip types that this autodep is valid on
+ *
+ * A clockdomain that should have wkdeps and sleepdeps added when a
+ * clockdomain should stay active in hwsup mode; and conversely,
+ * removed when the clockdomain should be allowed to go inactive in
+ * hwsup mode.
+ *
+ * Autodeps are deprecated and should be removed after
+ * omap_hwmod-based fine-grained module idle control is added.
  */
-struct clkdm_pwrdm_autodep {
-
+struct clkdm_autodep {
 	union {
-		/* Name of the powerdomain to add a wkdep/sleepdep on */
 		const char *name;
-
-		/* Powerdomain pointer (looked up at clkdm_init() time) */
-		struct powerdomain *ptr;
-	} pwrdm;
-
-	/* OMAP chip types that this clockdomain dep is valid on */
+		struct clockdomain *ptr;
+	} clkdm;
 	const struct omap_chip_id omap_chip;
+};
 
+/**
+ * struct clkdm_dep - encode dependencies between clockdomains
+ * @clkdm_name: clockdomain name
+ * @clkdm: pointer to the struct clockdomain of @clkdm_name
+ * @omap_chip: OMAP chip types that this dependency is valid on
+ * @wkdep_usecount: Number of wakeup dependencies causing this clkdm to wake
+ * @sleepdep_usecount: Number of sleep deps that could prevent clkdm from idle
+ *
+ * Statically defined.  @clkdm is resolved from @clkdm_name at runtime and
+ * should not be pre-initialized.
+ *
+ * XXX Should also include hardware (fixed) dependencies.
+ */
+struct clkdm_dep {
+	const char *clkdm_name;
+	struct clockdomain *clkdm;
+	atomic_t wkdep_usecount;
+	atomic_t sleepdep_usecount;
+	const struct omap_chip_id omap_chip;
 };
 
+/**
+ * struct clockdomain - OMAP clockdomain
+ * @name: clockdomain name
+ * @pwrdm: powerdomain containing this clockdomain
+ * @clktrctrl_reg: CLKSTCTRL reg for the given clock domain
+ * @clktrctrl_mask: CLKTRCTRL/AUTOSTATE field mask in CM_CLKSTCTRL reg
+ * @flags: Clockdomain capability flags
+ * @dep_bit: Bit shift of this clockdomain's PM_WKDEP/CM_SLEEPDEP bit
+ * @wkdep_srcs: Clockdomains that can be told to wake this powerdomain up
+ * @sleepdep_srcs: Clockdomains that can be told to keep this clkdm from inact
+ * @omap_chip: OMAP chip types that this clockdomain is valid on
+ * @usecount: Usecount tracking
+ * @node: list_head to link all clockdomains together
+ */
 struct clockdomain {
-
-	/* Clockdomain name */
 	const char *name;
-
 	union {
-		/* Powerdomain enclosing this clockdomain */
 		const char *name;
-
-		/* Powerdomain pointer assigned at clkdm_register() */
 		struct powerdomain *ptr;
 	} pwrdm;
-
-	/* CLKTRCTRL/AUTOSTATE field mask in CM_CLKSTCTRL reg */
+	void __iomem *clkstctrl_reg;
 	const u16 clktrctrl_mask;
-
-	/* Clockdomain capability flags */
 	const u8 flags;
-
-	/* OMAP chip types that this clockdomain is valid on */
+	const u8 dep_bit;
+	struct clkdm_dep *wkdep_srcs;
+	struct clkdm_dep *sleepdep_srcs;
 	const struct omap_chip_id omap_chip;
-
-	/* Usecount tracking */
 	atomic_t usecount;
-
 	struct list_head node;
-
 };
 
-void clkdm_init(struct clockdomain **clkdms, struct clkdm_pwrdm_autodep *autodeps);
-int clkdm_register(struct clockdomain *clkdm);
-int clkdm_unregister(struct clockdomain *clkdm);
+void clkdm_init(struct clockdomain **clkdms, struct clkdm_autodep *autodeps);
 struct clockdomain *clkdm_lookup(const char *name);
 
 int clkdm_for_each(int (*fn)(struct clockdomain *clkdm, void *user),
 			void *user);
 struct powerdomain *clkdm_get_pwrdm(struct clockdomain *clkdm);
 
+int clkdm_add_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
+int clkdm_del_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
+int clkdm_read_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
+int clkdm_clear_all_wkdeps(struct clockdomain *clkdm);
+int clkdm_add_sleepdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
+int clkdm_del_sleepdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
+int clkdm_read_sleepdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
+int clkdm_clear_all_sleepdeps(struct clockdomain *clkdm);
+
 void omap2_clkdm_allow_idle(struct clockdomain *clkdm);
 void omap2_clkdm_deny_idle(struct clockdomain *clkdm);
 

arch/arm/plat-omap/include/plat/control.h

@@ -160,6 +160,14 @@
 #define OMAP343X_CONTROL_SRAMLDO5	(OMAP2_CONTROL_GENERAL + 0x02C0)
 #define OMAP343X_CONTROL_CSI		(OMAP2_CONTROL_GENERAL + 0x02C4)
 
+/* AM35XX only CONTROL_GENERAL register offsets */
+#define AM35XX_CONTROL_MSUSPENDMUX_6    (OMAP2_CONTROL_GENERAL + 0x0038)
+#define AM35XX_CONTROL_DEVCONF2         (OMAP2_CONTROL_GENERAL + 0x0310)
+#define AM35XX_CONTROL_DEVCONF3         (OMAP2_CONTROL_GENERAL + 0x0314)
+#define AM35XX_CONTROL_CBA_PRIORITY     (OMAP2_CONTROL_GENERAL + 0x0320)
+#define AM35XX_CONTROL_LVL_INTR_CLEAR   (OMAP2_CONTROL_GENERAL + 0x0324)
+#define AM35XX_CONTROL_IP_SW_RESET      (OMAP2_CONTROL_GENERAL + 0x0328)
+#define AM35XX_CONTROL_IPSS_CLK_CTRL    (OMAP2_CONTROL_GENERAL + 0x032C)
 
 /* 34xx PADCONF register offsets */
 #define OMAP343X_PADCONF_ETK(i)		(OMAP2_CONTROL_PADCONFS + 0x5a8 + \
@@ -257,6 +265,15 @@
 #define OMAP343X_SCRATCHPAD		(OMAP343X_CTRL_BASE + 0x910)
 #define OMAP343X_SCRATCHPAD_ROM_OFFSET	0x19C
 
+/* AM35XX_CONTROL_IPSS_CLK_CTRL bits */
+#define AM35XX_USBOTG_VBUSP_CLK_SHIFT   0
+#define AM35XX_CPGMAC_VBUSP_CLK_SHIFT   1
+#define AM35XX_VPFE_VBUSP_CLK_SHIFT     2
+#define AM35XX_HECC_VBUSP_CLK_SHIFT     3
+#define AM35XX_USBOTG_FCLK_SHIFT        8
+#define AM35XX_CPGMAC_FCLK_SHIFT        9
+#define AM35XX_VPFE_FCLK_SHIFT          10
+
 /*
  * CONTROL OMAP STATUS register to identify OMAP3 features
  */

arch/arm/plat-omap/include/plat/cpu.h

@@ -44,7 +44,7 @@
 int omap_type(void);
 
 struct omap_chip_id {
-	u8 oc;
+	u16 oc;
 	u8 type;
 };
 
@@ -154,6 +154,7 @@ unsigned int omap_rev(void);
  * cpu_is_omap242x():	True for OMAP2420, OMAP2422, OMAP2423
  * cpu_is_omap243x():	True for OMAP2430
  * cpu_is_omap343x():	True for OMAP3430
+ * cpu_is_omap443x():	True for OMAP4430
  */
 #define GET_OMAP_CLASS	(omap_rev() & 0xff)
 
@@ -286,6 +287,7 @@ IS_OMAP_SUBCLASS(443x, 0x443)
  * cpu_is_omap2423():	True for OMAP2423
  * cpu_is_omap2430():	True for OMAP2430
  * cpu_is_omap3430():	True for OMAP3430
+ * cpu_is_omap4430():	True for OMAP4430
  * cpu_is_omap3505():	True for OMAP3505
  * cpu_is_omap3517():	True for OMAP3517
  */
@@ -334,6 +336,7 @@ IS_OMAP_TYPE(3517, 0x3517)
 #define cpu_is_omap3505()		0
 #define cpu_is_omap3517()		0
 #define cpu_is_omap3430()		0
+#define cpu_is_omap4430()		0
 #define cpu_is_omap3630()		0
 
 /*
@@ -471,9 +474,12 @@ IS_OMAP_TYPE(3517, 0x3517)
 #define CHIP_IS_OMAP3430ES3_0		(1 << 5)
 #define CHIP_IS_OMAP3430ES3_1		(1 << 6)
 #define CHIP_IS_OMAP3630ES1		(1 << 7)
+#define CHIP_IS_OMAP4430ES1		(1 << 8)
 
 #define CHIP_IS_OMAP24XX		(CHIP_IS_OMAP2420 | CHIP_IS_OMAP2430)
 
+#define CHIP_IS_OMAP4430		(CHIP_IS_OMAP4430ES1)
+
 /*
  * "GE" here represents "greater than or equal to" in terms of ES
  * levels.  So CHIP_GE_OMAP3430ES2 is intended to match all OMAP3430

arch/arm/plat-omap/include/plat/omap_device.h

@@ -131,11 +131,15 @@ int omap_device_enable_clocks(struct omap_device *od);
  */
 struct omap_device_pm_latency {
 	u32 deactivate_lat;
+	u32 deactivate_lat_worst;
 	int (*deactivate_func)(struct omap_device *od);
 	u32 activate_lat;
+	u32 activate_lat_worst;
 	int (*activate_func)(struct omap_device *od);
+	u32 flags;
 };
 
+#define OMAP_DEVICE_LATENCY_AUTO_ADJUST BIT(1)
 
 /* Get omap_device pointer from platform_device pointer */
 #define to_omap_device(x) container_of((x), struct omap_device, pdev)

arch/arm/plat-omap/include/plat/omap_hwmod.h

@@ -441,6 +441,8 @@ int omap_hwmod_shutdown(struct omap_hwmod *oh);
 int omap_hwmod_enable_clocks(struct omap_hwmod *oh);
 int omap_hwmod_disable_clocks(struct omap_hwmod *oh);
 
+int omap_hwmod_set_slave_idlemode(struct omap_hwmod *oh, u8 idlemode);
+
 int omap_hwmod_reset(struct omap_hwmod *oh);
 void omap_hwmod_ocp_barrier(struct omap_hwmod *oh);
 

arch/arm/plat-omap/include/plat/powerdomain.h

@@ -1,8 +1,8 @@
 /*
  * OMAP2/3 powerdomain control
  *
- * Copyright (C) 2007-8 Texas Instruments, Inc.
- * Copyright (C) 2007-8 Nokia Corporation
+ * Copyright (C) 2007-2008 Texas Instruments, Inc.
+ * Copyright (C) 2007-2009 Nokia Corporation
  *
  * Written by Paul Walmsley
  *
@@ -37,6 +37,9 @@
 #define PWRSTS_OFF_RET		((1 << PWRDM_POWER_OFF) | \
 				 (1 << PWRDM_POWER_RET))
 
+#define PWRSTS_RET_ON		((1 << PWRDM_POWER_RET) | \
+				 (1 << PWRDM_POWER_ON))
+
 #define PWRSTS_OFF_RET_ON	(PWRSTS_OFF_RET | (1 << PWRDM_POWER_ON))
 
 
@@ -48,16 +51,16 @@
 					  */
 
 /*
- * Number of memory banks that are power-controllable.	On OMAP3430, the
- * maximum is 4.
+ * Number of memory banks that are power-controllable.	On OMAP4430, the
+ * maximum is 5.
  */
-#define PWRDM_MAX_MEM_BANKS	4
+#define PWRDM_MAX_MEM_BANKS	5
 
 /*
  * Maximum number of clockdomains that can be associated with a powerdomain.
- * CORE powerdomain on OMAP3 is the worst case
+ * CORE powerdomain on OMAP4 is the worst case
  */
-#define PWRDM_MAX_CLKDMS	4
+#define PWRDM_MAX_CLKDMS	9
 
 /* XXX A completely arbitrary number. What is reasonable here? */
 #define PWRDM_TRANSITION_BAILOUT 100000
@@ -65,63 +68,36 @@
 struct clockdomain;
 struct powerdomain;
 
-/* Encodes dependencies between powerdomains - statically defined */
-struct pwrdm_dep {
-
-	/* Powerdomain name */
-	const char *pwrdm_name;
-
-	/* Powerdomain pointer - resolved by the powerdomain code */
-	struct powerdomain *pwrdm;
-
-	/* Flags to mark OMAP chip restrictions, etc. */
-	const struct omap_chip_id omap_chip;
-
-};
-
+/**
+ * struct powerdomain - OMAP powerdomain
+ * @name: Powerdomain name
+ * @omap_chip: represents the OMAP chip types containing this pwrdm
+ * @prcm_offs: the address offset from CM_BASE/PRM_BASE
+ * @pwrsts: Possible powerdomain power states
+ * @pwrsts_logic_ret: Possible logic power states when pwrdm in RETENTION
+ * @flags: Powerdomain flags
+ * @banks: Number of software-controllable memory banks in this powerdomain
+ * @pwrsts_mem_ret: Possible memory bank pwrstates when pwrdm in RETENTION
+ * @pwrsts_mem_on: Possible memory bank pwrstates when pwrdm in ON
+ * @pwrdm_clkdms: Clockdomains in this powerdomain
+ * @node: list_head linking all powerdomains
+ * @state:
+ * @state_counter:
+ * @timer:
+ * @state_timer:
+ */
 struct powerdomain {
-
-	/* Powerdomain name */
 	const char *name;
-
-	/* the address offset from CM_BASE/PRM_BASE */
-	const s16 prcm_offs;
-
-	/* Used to represent the OMAP chip types containing this pwrdm */
 	const struct omap_chip_id omap_chip;
-
-	/* Powerdomains that can be told to wake this powerdomain up */
-	struct pwrdm_dep *wkdep_srcs;
-
-	/* Powerdomains that can be told to keep this pwrdm from inactivity */
-	struct pwrdm_dep *sleepdep_srcs;
-
-	/* Bit shift of this powerdomain's PM_WKDEP/CM_SLEEPDEP bit */
-	const u8 dep_bit;
-
-	/* Possible powerdomain power states */
+	const s16 prcm_offs;
 	const u8 pwrsts;
-
-	/* Possible logic power states when pwrdm in RETENTION */
 	const u8 pwrsts_logic_ret;
-
-	/* Powerdomain flags */
 	const u8 flags;
-
-	/* Number of software-controllable memory banks in this powerdomain */
 	const u8 banks;
-
-	/* Possible memory bank pwrstates when pwrdm in RETENTION */
 	const u8 pwrsts_mem_ret[PWRDM_MAX_MEM_BANKS];
-
-	/* Possible memory bank pwrstates when pwrdm is ON */
 	const u8 pwrsts_mem_on[PWRDM_MAX_MEM_BANKS];
-
-	/* Clockdomains in this powerdomain */
 	struct clockdomain *pwrdm_clkdms[PWRDM_MAX_CLKDMS];
-
 	struct list_head node;
-
 	int state;
 	unsigned state_counter[PWRDM_MAX_PWRSTS];
 
@@ -134,8 +110,6 @@ struct powerdomain {
 
 void pwrdm_init(struct powerdomain **pwrdm_list);
 
-int pwrdm_register(struct powerdomain *pwrdm);
-int pwrdm_unregister(struct powerdomain *pwrdm);
 struct powerdomain *pwrdm_lookup(const char *name);
 
 int pwrdm_for_each(int (*fn)(struct powerdomain *pwrdm, void *user),
@@ -149,13 +123,6 @@ int pwrdm_for_each_clkdm(struct powerdomain *pwrdm,
 			 int (*fn)(struct powerdomain *pwrdm,
 				   struct clockdomain *clkdm));
 
-int pwrdm_add_wkdep(struct powerdomain *pwrdm1, struct powerdomain *pwrdm2);
-int pwrdm_del_wkdep(struct powerdomain *pwrdm1, struct powerdomain *pwrdm2);
-int pwrdm_read_wkdep(struct powerdomain *pwrdm1, struct powerdomain *pwrdm2);
-int pwrdm_add_sleepdep(struct powerdomain *pwrdm1, struct powerdomain *pwrdm2);
-int pwrdm_del_sleepdep(struct powerdomain *pwrdm1, struct powerdomain *pwrdm2);
-int pwrdm_read_sleepdep(struct powerdomain *pwrdm1, struct powerdomain *pwrdm2);
-
 int pwrdm_get_mem_bank_count(struct powerdomain *pwrdm);
 
 int pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst);

arch/arm/plat-omap/include/plat/prcm.h

@@ -33,6 +33,14 @@ int omap2_cm_wait_idlest(void __iomem *reg, u32 mask, const char *name);
 void omap3_prcm_save_context(void);
 void omap3_prcm_restore_context(void);
 
+u32 prm_read_mod_reg(s16 module, u16 idx);
+void prm_write_mod_reg(u32 val, s16 module, u16 idx);
+u32 prm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, s16 idx);
+u32 prm_read_mod_bits_shift(s16 domain, s16 idx, u32 mask);
+u32 cm_read_mod_reg(s16 module, u16 idx);
+void cm_write_mod_reg(u32 val, s16 module, u16 idx);
+u32 cm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, s16 idx);
+
 #endif
 
 

arch/arm/plat-omap/omap_device.c

@@ -148,10 +148,22 @@ static int _omap_device_activate(struct omap_device *od, u8 ignore_lat)
 			 "%llu nsec\n", od->pdev.name, od->pm_lat_level,
 			 act_lat);
 
-		WARN(act_lat > odpl->activate_lat, "omap_device: %s.%d: "
-		     "activate step %d took longer than expected (%llu > %d)\n",
-		     od->pdev.name, od->pdev.id, od->pm_lat_level,
-		     act_lat, odpl->activate_lat);
+		if (act_lat > odpl->activate_lat) {
+			odpl->activate_lat_worst = act_lat;
+			if (odpl->flags & OMAP_DEVICE_LATENCY_AUTO_ADJUST) {
+				odpl->activate_lat = act_lat;
+				pr_warning("omap_device: %s.%d: new worst case "
+					   "activate latency %d: %llu\n",
+					   od->pdev.name, od->pdev.id,
+					   od->pm_lat_level, act_lat);
+			} else
+				pr_warning("omap_device: %s.%d: activate "
+					   "latency %d higher than exptected. "
+					   "(%llu > %d)\n",
+					   od->pdev.name, od->pdev.id,
+					   od->pm_lat_level, act_lat,
+					   odpl->activate_lat);
+		}
 
 		od->dev_wakeup_lat -= odpl->activate_lat;
 	}
@@ -204,10 +216,23 @@ static int _omap_device_deactivate(struct omap_device *od, u8 ignore_lat)
 			 "%llu nsec\n", od->pdev.name, od->pm_lat_level,
 			 deact_lat);
 
-		WARN(deact_lat > odpl->deactivate_lat, "omap_device: %s.%d: "
-		     "deactivate step %d took longer than expected "
-		     "(%llu > %d)\n", od->pdev.name, od->pdev.id,
-		     od->pm_lat_level, deact_lat, odpl->deactivate_lat);
+		if (deact_lat > odpl->deactivate_lat) {
+			odpl->deactivate_lat_worst = deact_lat;
+			if (odpl->flags & OMAP_DEVICE_LATENCY_AUTO_ADJUST) {
+				odpl->deactivate_lat = deact_lat;
+				pr_warning("omap_device: %s.%d: new worst case "
+					   "deactivate latency %d: %llu\n",
+					   od->pdev.name, od->pdev.id,
+					   od->pm_lat_level, deact_lat);
+			} else
+				pr_warning("omap_device: %s.%d: deactivate "
+					   "latency %d higher than exptected. "
+					   "(%llu > %d)\n",
+					   od->pdev.name, od->pdev.id,
+					   od->pm_lat_level, deact_lat,
+					   odpl->deactivate_lat);
+		}
+
 
 		od->dev_wakeup_lat += odpl->activate_lat;