ARM: OMAP: Remove common pm.c

There is now separate pm.c for OMAP1 and OMAP2.

Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/plat-omap/pm.c

@@ -1,670 +0,0 @@
-/*
- * linux/arch/arm/plat-omap/pm.c
- *
- * OMAP Power Management Routines
- *
- * Original code for the SA11x0:
- * Copyright (c) 2001 Cliff Brake <cbrake@accelent.com>
- *
- * Modified for the PXA250 by Nicolas Pitre:
- * Copyright (c) 2002 Monta Vista Software, Inc.
- *
- * Modified for the OMAP1510 by David Singleton:
- * Copyright (c) 2002 Monta Vista Software, Inc.
- *
- * Cleanup 2004 for OMAP1510/1610 by Dirk Behme <dirk.behme@de.bosch.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/pm.h>
-#include <linux/sched.h>
-#include <linux/proc_fs.h>
-#include <linux/pm.h>
-#include <linux/interrupt.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/mach/time.h>
-#include <asm/mach/irq.h>
-
-#include <asm/mach-types.h>
-#include <asm/arch/irqs.h>
-#include <asm/arch/tc.h>
-#include <asm/arch/pm.h>
-#include <asm/arch/mux.h>
-#include <asm/arch/tps65010.h>
-#include <asm/arch/dsp_common.h>
-
-#include <asm/arch/clock.h>
-#include <asm/arch/sram.h>
-
-static unsigned int arm_sleep_save[ARM_SLEEP_SAVE_SIZE];
-static unsigned short ulpd_sleep_save[ULPD_SLEEP_SAVE_SIZE];
-static unsigned int mpui730_sleep_save[MPUI730_SLEEP_SAVE_SIZE];
-static unsigned int mpui1510_sleep_save[MPUI1510_SLEEP_SAVE_SIZE];
-static unsigned int mpui1610_sleep_save[MPUI1610_SLEEP_SAVE_SIZE];
-
-static void (*omap_sram_idle)(void) = NULL;
-static void (*omap_sram_suspend)(unsigned long r0, unsigned long r1) = NULL;
-
-/*
- * Let's power down on idle, but only if we are really
- * idle, because once we start down the path of
- * going idle we continue to do idle even if we get
- * a clock tick interrupt . .
- */
-void omap_pm_idle(void)
-{
-	unsigned int mask32 = 0;
-
-	/*
-	 * If the DSP is being used let's just idle the CPU, the overhead
-	 * to wake up from Big Sleep is big, milliseconds versus micro
-	 * seconds for wait for interrupt.
-	 */
-
-	local_irq_disable();
-	local_fiq_disable();
-	if (need_resched()) {
-		local_fiq_enable();
-		local_irq_enable();
-		return;
-	}
-	mask32 = omap_readl(ARM_SYSST);
-
-	/*
-	 * Prevent the ULPD from entering low power state by setting
-	 * POWER_CTRL_REG:4 = 0
-	 */
-	omap_writew(omap_readw(ULPD_POWER_CTRL) &
-		    ~ULPD_DEEP_SLEEP_TRANSITION_EN, ULPD_POWER_CTRL);
-
-	/*
-	 * Since an interrupt may set up a timer, we don't want to
-	 * reprogram the hardware timer with interrupts enabled.
-	 * Re-enable interrupts only after returning from idle.
-	 */
-	timer_dyn_reprogram();
-
-	if ((mask32 & DSP_IDLE) == 0) {
-		__asm__ volatile ("mcr	p15, 0, r0, c7, c0, 4");
-	} else
-		omap_sram_idle();
-
-	local_fiq_enable();
-	local_irq_enable();
-}
-
-/*
- * Configuration of the wakeup event is board specific. For the
- * moment we put it into this helper function. Later it may move
- * to board specific files.
- */
-static void omap_pm_wakeup_setup(void)
-{
-	u32 level1_wake = 0;
-	u32 level2_wake = OMAP_IRQ_BIT(INT_UART2);
-
-	/*
-	 * Turn off all interrupts except GPIO bank 1, L1-2nd level cascade,
-	 * and the L2 wakeup interrupts: keypad and UART2. Note that the
-	 * drivers must still separately call omap_set_gpio_wakeup() to
-	 * wake up to a GPIO interrupt.
-	 */
-	if (cpu_is_omap730())
-		level1_wake = OMAP_IRQ_BIT(INT_730_GPIO_BANK1) |
-			OMAP_IRQ_BIT(INT_730_IH2_IRQ);
-	else if (cpu_is_omap1510())
-		level1_wake = OMAP_IRQ_BIT(INT_GPIO_BANK1) |
-			OMAP_IRQ_BIT(INT_1510_IH2_IRQ);
-	else if (cpu_is_omap16xx())
-		level1_wake = OMAP_IRQ_BIT(INT_GPIO_BANK1) |
-			OMAP_IRQ_BIT(INT_1610_IH2_IRQ);
-
-	omap_writel(~level1_wake, OMAP_IH1_MIR);
-
-	if (cpu_is_omap730()) {
-		omap_writel(~level2_wake, OMAP_IH2_0_MIR);
-		omap_writel(~(OMAP_IRQ_BIT(INT_730_WAKE_UP_REQ) | OMAP_IRQ_BIT(INT_730_MPUIO_KEYPAD)), OMAP_IH2_1_MIR);
-	} else if (cpu_is_omap1510()) {
-		level2_wake |= OMAP_IRQ_BIT(INT_KEYBOARD);
-		omap_writel(~level2_wake,  OMAP_IH2_MIR);
-	} else if (cpu_is_omap16xx()) {
-		level2_wake |= OMAP_IRQ_BIT(INT_KEYBOARD);
-		omap_writel(~level2_wake, OMAP_IH2_0_MIR);
-
-		/* INT_1610_WAKE_UP_REQ is needed for GPIO wakeup... */
-		omap_writel(~OMAP_IRQ_BIT(INT_1610_WAKE_UP_REQ), OMAP_IH2_1_MIR);
-		omap_writel(~0x0, OMAP_IH2_2_MIR);
-		omap_writel(~0x0, OMAP_IH2_3_MIR);
-	}
-
-	/*  New IRQ agreement, recalculate in cascade order */
-	omap_writel(1, OMAP_IH2_CONTROL);
- 	omap_writel(1, OMAP_IH1_CONTROL);
-}
-
-void omap_pm_suspend(void)
-{
-	unsigned long arg0 = 0, arg1 = 0;
-
-	printk("PM: OMAP%x is trying to enter deep sleep...\n", system_rev);
-
-	omap_serial_wake_trigger(1);
-
-	if (machine_is_omap_osk()) {
-		/* Stop LED1 (D9) blink */
-		tps65010_set_led(LED1, OFF);
-	}
-
-	omap_writew(0xffff, ULPD_SOFT_DISABLE_REQ_REG);
-
-	/*
-	 * Step 1: turn off interrupts (FIXME: NOTE: already disabled)
-	 */
-
-	local_irq_disable();
-	local_fiq_disable();
-
-	/*
-	 * Step 2: save registers
-	 *
-	 * The omap is a strange/beautiful device. The caches, memory
-	 * and register state are preserved across power saves.
-	 * We have to save and restore very little register state to
-	 * idle the omap.
-         *
- 	 * Save interrupt, MPUI, ARM and UPLD control registers.
-	 */
-
-	if (cpu_is_omap730()) {
-		MPUI730_SAVE(OMAP_IH1_MIR);
-		MPUI730_SAVE(OMAP_IH2_0_MIR);
-		MPUI730_SAVE(OMAP_IH2_1_MIR);
-		MPUI730_SAVE(MPUI_CTRL);
-		MPUI730_SAVE(MPUI_DSP_BOOT_CONFIG);
-		MPUI730_SAVE(MPUI_DSP_API_CONFIG);
-		MPUI730_SAVE(EMIFS_CONFIG);
-		MPUI730_SAVE(EMIFF_SDRAM_CONFIG);
-
-	} else if (cpu_is_omap1510()) {
-		MPUI1510_SAVE(OMAP_IH1_MIR);
-		MPUI1510_SAVE(OMAP_IH2_MIR);
-		MPUI1510_SAVE(MPUI_CTRL);
-		MPUI1510_SAVE(MPUI_DSP_BOOT_CONFIG);
-		MPUI1510_SAVE(MPUI_DSP_API_CONFIG);
-		MPUI1510_SAVE(EMIFS_CONFIG);
-		MPUI1510_SAVE(EMIFF_SDRAM_CONFIG);
-	} else if (cpu_is_omap16xx()) {
-		MPUI1610_SAVE(OMAP_IH1_MIR);
-		MPUI1610_SAVE(OMAP_IH2_0_MIR);
-		MPUI1610_SAVE(OMAP_IH2_1_MIR);
-		MPUI1610_SAVE(OMAP_IH2_2_MIR);
-		MPUI1610_SAVE(OMAP_IH2_3_MIR);
-		MPUI1610_SAVE(MPUI_CTRL);
-		MPUI1610_SAVE(MPUI_DSP_BOOT_CONFIG);
-		MPUI1610_SAVE(MPUI_DSP_API_CONFIG);
-		MPUI1610_SAVE(EMIFS_CONFIG);
-		MPUI1610_SAVE(EMIFF_SDRAM_CONFIG);
-	}
-
-	ARM_SAVE(ARM_CKCTL);
-	ARM_SAVE(ARM_IDLECT1);
-	ARM_SAVE(ARM_IDLECT2);
-	if (!(cpu_is_omap1510()))
-		ARM_SAVE(ARM_IDLECT3);
-	ARM_SAVE(ARM_EWUPCT);
-	ARM_SAVE(ARM_RSTCT1);
-	ARM_SAVE(ARM_RSTCT2);
-	ARM_SAVE(ARM_SYSST);
-	ULPD_SAVE(ULPD_CLOCK_CTRL);
-	ULPD_SAVE(ULPD_STATUS_REQ);
-
-	/* (Step 3 removed - we now allow deep sleep by default) */
-
-	/*
-	 * Step 4: OMAP DSP Shutdown
-	 */
-
-
-	/*
-	 * Step 5: Wakeup Event Setup
-	 */
-
-	omap_pm_wakeup_setup();
-
-	/*
-	 * Step 6: ARM and Traffic controller shutdown
-	 */
-
-	/* disable ARM watchdog */
-	omap_writel(0x00F5, OMAP_WDT_TIMER_MODE);
-	omap_writel(0x00A0, OMAP_WDT_TIMER_MODE);
-
-	/*
-	 * Step 6b: ARM and Traffic controller shutdown
-	 *
-	 * Step 6 continues here. Prepare jump to power management
-	 * assembly code in internal SRAM.
-	 *
-	 * Since the omap_cpu_suspend routine has been copied to
-	 * SRAM, we'll do an indirect procedure call to it and pass the
-	 * contents of arm_idlect1 and arm_idlect2 so it can restore
-	 * them when it wakes up and it will return.
-	 */
-
-	arg0 = arm_sleep_save[ARM_SLEEP_SAVE_ARM_IDLECT1];
-	arg1 = arm_sleep_save[ARM_SLEEP_SAVE_ARM_IDLECT2];
-
-	/*
-	 * Step 6c: ARM and Traffic controller shutdown
-	 *
-	 * Jump to assembly code. The processor will stay there
- 	 * until wake up.
-	 */
-        omap_sram_suspend(arg0, arg1);
-
-	/*
-	 * If we are here, processor is woken up!
-	 */
-
-	/*
-	 * Restore ARM state, except ARM_IDLECT1/2 which omap_cpu_suspend did
-	 */
-
-	if (!(cpu_is_omap1510()))
-		ARM_RESTORE(ARM_IDLECT3);
-	ARM_RESTORE(ARM_CKCTL);
-	ARM_RESTORE(ARM_EWUPCT);
-	ARM_RESTORE(ARM_RSTCT1);
-	ARM_RESTORE(ARM_RSTCT2);
-	ARM_RESTORE(ARM_SYSST);
-	ULPD_RESTORE(ULPD_CLOCK_CTRL);
-	ULPD_RESTORE(ULPD_STATUS_REQ);
-
-	if (cpu_is_omap730()) {
-		MPUI730_RESTORE(EMIFS_CONFIG);
-		MPUI730_RESTORE(EMIFF_SDRAM_CONFIG);
-		MPUI730_RESTORE(OMAP_IH1_MIR);
-		MPUI730_RESTORE(OMAP_IH2_0_MIR);
-		MPUI730_RESTORE(OMAP_IH2_1_MIR);
-	} else if (cpu_is_omap1510()) {
-		MPUI1510_RESTORE(MPUI_CTRL);
-		MPUI1510_RESTORE(MPUI_DSP_BOOT_CONFIG);
-		MPUI1510_RESTORE(MPUI_DSP_API_CONFIG);
-		MPUI1510_RESTORE(EMIFS_CONFIG);
-		MPUI1510_RESTORE(EMIFF_SDRAM_CONFIG);
-		MPUI1510_RESTORE(OMAP_IH1_MIR);
-		MPUI1510_RESTORE(OMAP_IH2_MIR);
-	} else if (cpu_is_omap16xx()) {
-		MPUI1610_RESTORE(MPUI_CTRL);
-		MPUI1610_RESTORE(MPUI_DSP_BOOT_CONFIG);
-		MPUI1610_RESTORE(MPUI_DSP_API_CONFIG);
-		MPUI1610_RESTORE(EMIFS_CONFIG);
-		MPUI1610_RESTORE(EMIFF_SDRAM_CONFIG);
-
-		MPUI1610_RESTORE(OMAP_IH1_MIR);
-		MPUI1610_RESTORE(OMAP_IH2_0_MIR);
-		MPUI1610_RESTORE(OMAP_IH2_1_MIR);
-		MPUI1610_RESTORE(OMAP_IH2_2_MIR);
-		MPUI1610_RESTORE(OMAP_IH2_3_MIR);
-	}
-
-	omap_writew(0, ULPD_SOFT_DISABLE_REQ_REG);
-
-	/*
-	 * Reenable interrupts
-	 */
-
-	local_irq_enable();
-	local_fiq_enable();
-
-	omap_serial_wake_trigger(0);
-
-	printk("PM: OMAP%x is re-starting from deep sleep...\n", system_rev);
-
-	if (machine_is_omap_osk()) {
-		/* Let LED1 (D9) blink again */
-		tps65010_set_led(LED1, BLINK);
-	}
-}
-
-#if defined(DEBUG) && defined(CONFIG_PROC_FS)
-static int g_read_completed;
-
-/*
- * Read system PM registers for debugging
- */
-static int omap_pm_read_proc(
-	char *page_buffer,
-	char **my_first_byte,
-	off_t virtual_start,
-	int length,
-	int *eof,
-	void *data)
-{
-	int my_buffer_offset = 0;
-	char * const my_base = page_buffer;
-
-	ARM_SAVE(ARM_CKCTL);
-	ARM_SAVE(ARM_IDLECT1);
-	ARM_SAVE(ARM_IDLECT2);
-	if (!(cpu_is_omap1510()))
-		ARM_SAVE(ARM_IDLECT3);
-	ARM_SAVE(ARM_EWUPCT);
-	ARM_SAVE(ARM_RSTCT1);
-	ARM_SAVE(ARM_RSTCT2);
-	ARM_SAVE(ARM_SYSST);
-
-	ULPD_SAVE(ULPD_IT_STATUS);
-	ULPD_SAVE(ULPD_CLOCK_CTRL);
-	ULPD_SAVE(ULPD_SOFT_REQ);
-	ULPD_SAVE(ULPD_STATUS_REQ);
-	ULPD_SAVE(ULPD_DPLL_CTRL);
-	ULPD_SAVE(ULPD_POWER_CTRL);
-
-	if (cpu_is_omap730()) {
-		MPUI730_SAVE(MPUI_CTRL);
-		MPUI730_SAVE(MPUI_DSP_STATUS);
-		MPUI730_SAVE(MPUI_DSP_BOOT_CONFIG);
-		MPUI730_SAVE(MPUI_DSP_API_CONFIG);
-		MPUI730_SAVE(EMIFF_SDRAM_CONFIG);
-		MPUI730_SAVE(EMIFS_CONFIG);
-	} else if (cpu_is_omap1510()) {
-		MPUI1510_SAVE(MPUI_CTRL);
-		MPUI1510_SAVE(MPUI_DSP_STATUS);
-		MPUI1510_SAVE(MPUI_DSP_BOOT_CONFIG);
-		MPUI1510_SAVE(MPUI_DSP_API_CONFIG);
-		MPUI1510_SAVE(EMIFF_SDRAM_CONFIG);
-		MPUI1510_SAVE(EMIFS_CONFIG);
-	} else if (cpu_is_omap16xx()) {
-		MPUI1610_SAVE(MPUI_CTRL);
-		MPUI1610_SAVE(MPUI_DSP_STATUS);
-		MPUI1610_SAVE(MPUI_DSP_BOOT_CONFIG);
-		MPUI1610_SAVE(MPUI_DSP_API_CONFIG);
-		MPUI1610_SAVE(EMIFF_SDRAM_CONFIG);
-		MPUI1610_SAVE(EMIFS_CONFIG);
-	}
-
-	if (virtual_start == 0) {
-		g_read_completed = 0;
-
-		my_buffer_offset += sprintf(my_base + my_buffer_offset,
-		   "ARM_CKCTL_REG:            0x%-8x     \n"
-		   "ARM_IDLECT1_REG:          0x%-8x     \n"
-		   "ARM_IDLECT2_REG:          0x%-8x     \n"
-		   "ARM_IDLECT3_REG:	      0x%-8x     \n"
-		   "ARM_EWUPCT_REG:           0x%-8x     \n"
-		   "ARM_RSTCT1_REG:           0x%-8x     \n"
-		   "ARM_RSTCT2_REG:           0x%-8x     \n"
-		   "ARM_SYSST_REG:            0x%-8x     \n"
-		   "ULPD_IT_STATUS_REG:       0x%-4x     \n"
-		   "ULPD_CLOCK_CTRL_REG:      0x%-4x     \n"
-		   "ULPD_SOFT_REQ_REG:        0x%-4x     \n"
-		   "ULPD_DPLL_CTRL_REG:       0x%-4x     \n"
-		   "ULPD_STATUS_REQ_REG:      0x%-4x     \n"
-		   "ULPD_POWER_CTRL_REG:      0x%-4x     \n",
-		   ARM_SHOW(ARM_CKCTL),
-		   ARM_SHOW(ARM_IDLECT1),
-		   ARM_SHOW(ARM_IDLECT2),
-		   ARM_SHOW(ARM_IDLECT3),
-		   ARM_SHOW(ARM_EWUPCT),
-		   ARM_SHOW(ARM_RSTCT1),
-		   ARM_SHOW(ARM_RSTCT2),
-		   ARM_SHOW(ARM_SYSST),
-		   ULPD_SHOW(ULPD_IT_STATUS),
-		   ULPD_SHOW(ULPD_CLOCK_CTRL),
-		   ULPD_SHOW(ULPD_SOFT_REQ),
-		   ULPD_SHOW(ULPD_DPLL_CTRL),
-		   ULPD_SHOW(ULPD_STATUS_REQ),
-		   ULPD_SHOW(ULPD_POWER_CTRL));
-
-		if (cpu_is_omap730()) {
-			my_buffer_offset += sprintf(my_base + my_buffer_offset,
-			   "MPUI730_CTRL_REG	     0x%-8x \n"
-			   "MPUI730_DSP_STATUS_REG:      0x%-8x \n"
-			   "MPUI730_DSP_BOOT_CONFIG_REG: 0x%-8x \n"
-	 "MPUI730_DSP_API_CONFIG_REG:  0x%-8x \n"
-	 "MPUI730_SDRAM_CONFIG_REG:    0x%-8x \n"
-	 "MPUI730_EMIFS_CONFIG_REG:    0x%-8x \n",
-	 MPUI730_SHOW(MPUI_CTRL),
-	 MPUI730_SHOW(MPUI_DSP_STATUS),
-	 MPUI730_SHOW(MPUI_DSP_BOOT_CONFIG),
-	 MPUI730_SHOW(MPUI_DSP_API_CONFIG),
-	 MPUI730_SHOW(EMIFF_SDRAM_CONFIG),
-	 MPUI730_SHOW(EMIFS_CONFIG));
-		} else if (cpu_is_omap1510()) {
-			my_buffer_offset += sprintf(my_base + my_buffer_offset,
-			   "MPUI1510_CTRL_REG             0x%-8x \n"
-			   "MPUI1510_DSP_STATUS_REG:      0x%-8x \n"
-			   "MPUI1510_DSP_BOOT_CONFIG_REG: 0x%-8x \n"
-		   	   "MPUI1510_DSP_API_CONFIG_REG:  0x%-8x \n"
-		   	   "MPUI1510_SDRAM_CONFIG_REG:    0x%-8x \n"
-		   	   "MPUI1510_EMIFS_CONFIG_REG:    0x%-8x \n",
-		   	   MPUI1510_SHOW(MPUI_CTRL),
-		   	   MPUI1510_SHOW(MPUI_DSP_STATUS),
-		   	   MPUI1510_SHOW(MPUI_DSP_BOOT_CONFIG),
-		   	   MPUI1510_SHOW(MPUI_DSP_API_CONFIG),
-		   	   MPUI1510_SHOW(EMIFF_SDRAM_CONFIG),
-		   	   MPUI1510_SHOW(EMIFS_CONFIG));
-		} else if (cpu_is_omap16xx()) {
-			my_buffer_offset += sprintf(my_base + my_buffer_offset,
-			   "MPUI1610_CTRL_REG             0x%-8x \n"
-			   "MPUI1610_DSP_STATUS_REG:      0x%-8x \n"
-			   "MPUI1610_DSP_BOOT_CONFIG_REG: 0x%-8x \n"
-		   	   "MPUI1610_DSP_API_CONFIG_REG:  0x%-8x \n"
-		   	   "MPUI1610_SDRAM_CONFIG_REG:    0x%-8x \n"
-		   	   "MPUI1610_EMIFS_CONFIG_REG:    0x%-8x \n",
-		   	   MPUI1610_SHOW(MPUI_CTRL),
-		   	   MPUI1610_SHOW(MPUI_DSP_STATUS),
-		   	   MPUI1610_SHOW(MPUI_DSP_BOOT_CONFIG),
-		   	   MPUI1610_SHOW(MPUI_DSP_API_CONFIG),
-		   	   MPUI1610_SHOW(EMIFF_SDRAM_CONFIG),
-		   	   MPUI1610_SHOW(EMIFS_CONFIG));
-		}
-
-		g_read_completed++;
-	} else if (g_read_completed >= 1) {
-		 *eof = 1;
-		 return 0;
-	}
-	g_read_completed++;
-
-	*my_first_byte = page_buffer;
-	return  my_buffer_offset;
-}
-
-static void omap_pm_init_proc(void)
-{
-	struct proc_dir_entry *entry;
-
-	entry = create_proc_read_entry("driver/omap_pm",
-				       S_IWUSR | S_IRUGO, NULL,
-	   omap_pm_read_proc, NULL);
-}
-
-#endif /* DEBUG && CONFIG_PROC_FS */
-
-/*
- *	omap_pm_prepare - Do preliminary suspend work.
- *	@state:		suspend state we're entering.
- *
- */
-//#include <asm/hardware.h>
-
-static int omap_pm_prepare(suspend_state_t state)
-{
-	int error = 0;
-
-	switch (state)
-	{
-	case PM_SUSPEND_STANDBY:
-	case PM_SUSPEND_MEM:
-		break;
-
-	case PM_SUSPEND_DISK:
-		return -ENOTSUPP;
-
-	default:
-		return -EINVAL;
-	}
-
-	return error;
-}
-
-
-/*
- *	omap_pm_enter - Actually enter a sleep state.
- *	@state:		State we're entering.
- *
- */
-
-static int omap_pm_enter(suspend_state_t state)
-{
-	switch (state)
-	{
-	case PM_SUSPEND_STANDBY:
-	case PM_SUSPEND_MEM:
-		omap_pm_suspend();
-		break;
-
-	case PM_SUSPEND_DISK:
-		return -ENOTSUPP;
-
-	default:
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-
-/**
- *	omap_pm_finish - Finish up suspend sequence.
- *	@state:		State we're coming out of.
- *
- *	This is called after we wake back up (or if entering the sleep state
- *	failed).
- */
-
-static int omap_pm_finish(suspend_state_t state)
-{
-	return 0;
-}
-
-
-static irqreturn_t  omap_wakeup_interrupt(int  irq, void *  dev,
-				     struct pt_regs *  regs)
-{
-	return IRQ_HANDLED;
-}
-
-static struct irqaction omap_wakeup_irq = {
-	.name		= "peripheral wakeup",
-	.flags		= IRQF_DISABLED,
-	.handler	= omap_wakeup_interrupt
-};
-
-
-
-static struct pm_ops omap_pm_ops ={
-	.pm_disk_mode = 0,
-        .prepare        = omap_pm_prepare,
-        .enter          = omap_pm_enter,
-        .finish         = omap_pm_finish,
-};
-
-static int __init omap_pm_init(void)
-{
-	printk("Power Management for TI OMAP.\n");
-	/*
-	 * We copy the assembler sleep/wakeup routines to SRAM.
-	 * These routines need to be in SRAM as that's the only
-	 * memory the MPU can see when it wakes up.
-	 */
-	if (cpu_is_omap730()) {
-		omap_sram_idle = omap_sram_push(omap730_idle_loop_suspend,
-						omap730_idle_loop_suspend_sz);
-		omap_sram_suspend = omap_sram_push(omap730_cpu_suspend,
-	 omap730_cpu_suspend_sz);
-	} else if (cpu_is_omap1510()) {
-		omap_sram_idle = omap_sram_push(omap1510_idle_loop_suspend,
-						omap1510_idle_loop_suspend_sz);
-		omap_sram_suspend = omap_sram_push(omap1510_cpu_suspend,
-						   omap1510_cpu_suspend_sz);
-	} else if (cpu_is_omap16xx()) {
-		omap_sram_idle = omap_sram_push(omap1610_idle_loop_suspend,
-						omap1610_idle_loop_suspend_sz);
-		omap_sram_suspend = omap_sram_push(omap1610_cpu_suspend,
-						   omap1610_cpu_suspend_sz);
-	}
-
-	if (omap_sram_idle == NULL || omap_sram_suspend == NULL) {
-		printk(KERN_ERR "PM not initialized: Missing SRAM support\n");
-		return -ENODEV;
-	}
-
-	pm_idle = omap_pm_idle;
-
-	if (cpu_is_omap730())
-		setup_irq(INT_730_WAKE_UP_REQ, &omap_wakeup_irq);
-	else if (cpu_is_omap16xx())
-		setup_irq(INT_1610_WAKE_UP_REQ, &omap_wakeup_irq);
-
-#if 0
-	/* --- BEGIN BOARD-DEPENDENT CODE --- */
-	/* Sleepx mask direction */
-	omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
-	/* Unmask sleepx signal */
-	omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
-	/* --- END BOARD-DEPENDENT CODE --- */
-#endif
-
-	/* Program new power ramp-up time
-	 * (0 for most boards since we don't lower voltage when in deep sleep)
-	 */
-	omap_writew(ULPD_SETUP_ANALOG_CELL_3_VAL, ULPD_SETUP_ANALOG_CELL_3);
-
-	/* Setup ULPD POWER_CTRL_REG - enter deep sleep whenever possible */
-	omap_writew(ULPD_POWER_CTRL_REG_VAL, ULPD_POWER_CTRL);
-
-	/* Configure IDLECT3 */
-	if (cpu_is_omap730())
-		omap_writel(OMAP730_IDLECT3_VAL, OMAP730_IDLECT3);
-	else if (cpu_is_omap16xx())
-		omap_writel(OMAP1610_IDLECT3_VAL, OMAP1610_IDLECT3);
-
-	pm_set_ops(&omap_pm_ops);
-
-#if defined(DEBUG) && defined(CONFIG_PROC_FS)
-	omap_pm_init_proc();
-#endif
-
-	if (cpu_is_omap16xx()) {
-		/* configure LOW_PWR pin */
-		omap_cfg_reg(T20_1610_LOW_PWR);
-	}
-
-	return 0;
-}
-__initcall(omap_pm_init);
-