Merge commit 'gcl/gcl-next'

MAINTAINERS

@@ -2503,13 +2503,11 @@ W:	http://www.penguinppc.org/
 L:	linuxppc-dev@ozlabs.org
 S:	Maintained
 
-LINUX FOR POWERPC EMBEDDED MPC52XX
+LINUX FOR POWERPC EMBEDDED MPC5XXX
 P:	Sylvain Munaut
 M:	tnt@246tNt.com
 P:	Grant Likely
 M:	grant.likely@secretlab.ca
-W:	http://www.246tNt.com/mpc52xx/
-W:	http://www.penguinppc.org/
 L:	linuxppc-dev@ozlabs.org
 S:	Maintained
 

Makefile

@@ -1,3 +1,4 @@
+FRED=42
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 26

arch/powerpc/boot/dts/mpc5121ads.dts

@@ -1,7 +1,7 @@
 /*
- * MPC5121E MDS Device Tree Source
+ * MPC5121E ADS Device Tree Source
  *
- * Copyright 2007 Freescale Semiconductor Inc.
+ * Copyright 2007,2008 Freescale Semiconductor Inc.
  *
  * 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
@@ -17,6 +17,10 @@
 	#address-cells = <1>;
 	#size-cells = <1>;
 
+	aliases {
+		pci = &pci;
+	};
+
 	cpus {
 		#address-cells = <1>;
 		#size-cells = <0>;
@@ -39,8 +43,41 @@
 		reg = <0x00000000 0x10000000>;	// 256MB at 0
 	};
 
+	mbx@20000000 {
+		compatible = "fsl,mpc5121-mbx";
+		reg = <0x20000000 0x4000>;
+		interrupts = <66 0x8>;
+		interrupt-parent = < &ipic >;
+	};
+
+	sram@30000000 {
+		compatible = "fsl,mpc5121-sram";
+		reg = <0x30000000 0x20000>;		// 128K at 0x30000000
+	};
+
+	nfc@40000000 {
+		compatible = "fsl,mpc5121-nfc";
+		reg = <0x40000000 0x100000>;	// 1M at 0x40000000
+		interrupts = <6 8>;
+		interrupt-parent = < &ipic >;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		bank-width = <1>;
+		// ADS has two Hynix 512MB Nand flash chips in a single
+		// stacked package .
+		chips = <2>;
+		nand0@0 {
+			label = "nand0";
+			reg = <0x00000000 0x02000000>; 	// first 32 MB of chip 0
+		};
+		nand1@20000000 {
+			label = "nand1";
+			reg = <0x20000000 0x02000000>; 	// first 32 MB of chip 1
+		};
+	};
+
 	localbus@80000020 {
-		compatible = "fsl,mpc5121ads-localbus";
+		compatible = "fsl,mpc5121-localbus";
 		#address-cells = <2>;
 		#size-cells = <1>;
 		reg = <0x80000020 0x40>;
@@ -51,14 +88,51 @@
 		flash@0,0 {
 			compatible = "cfi-flash";
 			reg = <0 0x0 0x4000000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
 			bank-width = <4>;
-			device-width = <1>;
+			device-width = <2>;
+			protected@0 {
+				label = "protected";
+				reg = <0x00000000 0x00040000>;  // first sector is protected
+				read-only;
+			};
+			filesystem@40000 {
+				label = "filesystem";
+				reg = <0x00040000 0x03c00000>;  // 60M for filesystem
+			};
+			kernel@3c40000 {
+				label = "kernel";
+				reg = <0x03c40000 0x00280000>;  // 2.5M for kernel
+			};
+			device-tree@3ec0000 {
+				label = "device-tree";
+				reg = <0x03ec0000 0x00040000>;  // one sector for device tree
+			};
+			u-boot@3f00000 {
+				label = "u-boot";
+				reg = <0x03f00000 0x00100000>;  // 1M for u-boot
+				read-only;
+			};
 		};
 
 		board-control@2,0 {
 			compatible = "fsl,mpc5121ads-cpld";
 			reg = <0x2 0x0 0x8000>;
 		};
+
+		cpld_pic: pic@2,a {
+			compatible = "fsl,mpc5121ads-cpld-pic";
+			interrupt-controller;
+			#interrupt-cells = <2>;
+			reg = <0x2 0xa 0x5>;
+			interrupt-parent = < &ipic >;
+			// irq routing
+			//	all irqs but touch screen are routed to irq0 (ipic 48)
+			//	touch screen is statically routed to irq1 (ipic 17)
+			//	so don't use it here
+			interrupts = <48 0x8>;
+		};
 	};
 
 	soc@80000000 {
@@ -85,38 +159,252 @@
 			reg = <0xc00 0x100>;
 		};
 
-		// 512x PSCs are not 52xx PSCs compatible
+		rtc@a00 {	// Real time clock
+			compatible = "fsl,mpc5121-rtc";
+			reg = <0xa00 0x100>;
+			interrupts = <79 0x8 80 0x8>;
+			interrupt-parent = < &ipic >;
+		};
+
+		clock@f00 {	// Clock control
+			compatible = "fsl,mpc5121-clock";
+			reg = <0xf00 0x100>;
+		};
+
+		pmc@1000{  //Power Management Controller
+			compatible = "fsl,mpc5121-pmc";
+			reg = <0x1000 0x100>;
+			interrupts = <83 0x2>;
+			interrupt-parent = < &ipic >;
+		};
+
+		gpio@1100 {
+			compatible = "fsl,mpc5121-gpio";
+			reg = <0x1100 0x100>;
+			interrupts = <78 0x8>;
+			interrupt-parent = < &ipic >;
+		};
+
+		mscan@1300 {
+			compatible = "fsl,mpc5121-mscan";
+			cell-index = <0>;
+			interrupts = <12 0x8>;
+			interrupt-parent = < &ipic >;
+			reg = <0x1300 0x80>;
+		};
+
+		mscan@1380 {
+			compatible = "fsl,mpc5121-mscan";
+			cell-index = <1>;
+			interrupts = <13 0x8>;
+			interrupt-parent = < &ipic >;
+			reg = <0x1380 0x80>;
+		};
+
+		i2c@1700 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "fsl,mpc5121-i2c", "fsl-i2c";
+			cell-index = <0>;
+			reg = <0x1700 0x20>;
+			interrupts = <9 0x8>;
+			interrupt-parent = < &ipic >;
+			fsl5200-clocking;
+		};
+
+		i2c@1720 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "fsl,mpc5121-i2c", "fsl-i2c";
+			cell-index = <1>;
+			reg = <0x1720 0x20>;
+			interrupts = <10 0x8>;
+			interrupt-parent = < &ipic >;
+			fsl5200-clocking;
+		};
+
+		i2c@1740 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "fsl,mpc5121-i2c", "fsl-i2c";
+			cell-index = <2>;
+			reg = <0x1740 0x20>;
+			interrupts = <11 0x8>;
+			interrupt-parent = < &ipic >;
+			fsl5200-clocking;
+		};
+
+		i2ccontrol@1760 {
+			compatible = "fsl,mpc5121-i2c-ctrl";
+			reg = <0x1760 0x8>;
+		};
+
+		axe@2000 {
+			compatible = "fsl,mpc5121-axe";
+			reg = <0x2000 0x100>;
+			interrupts = <42 0x8>;
+			interrupt-parent = < &ipic >;
+		};
+
+		display@2100 {
+			compatible = "fsl,mpc5121-diu", "fsl-diu";
+			reg = <0x2100 0x100>;
+			interrupts = <64 0x8>;
+			interrupt-parent = < &ipic >;
+		};
+
+		mdio@2800 {
+			compatible = "fsl,mpc5121-fec-mdio";
+			reg = <0x2800 0x800>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			phy: ethernet-phy@0 {
+				reg = <1>;
+				device_type = "ethernet-phy";
+			};
+		};
+
+		ethernet@2800 {
+			device_type = "network";
+			compatible = "fsl,mpc5121-fec";
+			reg = <0x2800 0x800>;
+			local-mac-address = [ 00 00 00 00 00 00 ];
+			interrupts = <4 0x8>;
+			interrupt-parent = < &ipic >;
+			phy-handle = < &phy >;
+			fsl,align-tx-packets = <4>;
+		};
+
+		// 5121e has two dr usb modules
+		// mpc5121_ads only uses USB0
+
+		// USB1 using external ULPI PHY
+		//usb@3000 {
+		//	compatible = "fsl,mpc5121-usb2-dr", "fsl-usb2-dr";
+		//	reg = <0x3000 0x1000>;
+		//	#address-cells = <1>;
+		//	#size-cells = <0>;
+		//	interrupt-parent = < &ipic >;
+		//	interrupts = <43 0x8>;
+		//	dr_mode = "otg";
+		//	phy_type = "ulpi";
+		//	port1;
+		//};
+
+		// USB0 using internal UTMI PHY
+		usb@4000 {
+			compatible = "fsl,mpc5121-usb2-dr", "fsl-usb2-dr";
+			reg = <0x4000 0x1000>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			interrupt-parent = < &ipic >;
+			interrupts = <44 0x8>;
+			dr_mode = "otg";
+			phy_type = "utmi_wide";
+			port0;
+		};
+
+		// IO control
+		ioctl@a000 {
+			compatible = "fsl,mpc5121-ioctl";
+			reg = <0xA000 0x1000>;
+		};
+
+		pata@10200 {
+			compatible = "fsl,mpc5121-pata";
+			reg = <0x10200 0x100>;
+			interrupts = <5 0x8>;
+			interrupt-parent = < &ipic >;
+		};
+
+		// 512x PSCs are not 52xx PSC compatible
 		// PSC3 serial port A aka ttyPSC0
 		serial@11300 {
 			device_type = "serial";
-			compatible = "fsl,mpc5121-psc-uart";
+			compatible = "fsl,mpc5121-psc-uart", "fsl,mpc5121-psc";
 			// Logical port assignment needed until driver
 			// learns to use aliases
 			port-number = <0>;
 			cell-index = <3>;
 			reg = <0x11300 0x100>;
-			interrupts = <0x28 0x8>; // actually the fifo irq
+			interrupts = <40 0x8>;
 			interrupt-parent = < &ipic >;
+			rx-fifo-size = <16>;
+			tx-fifo-size = <16>;
 		};
 
 		// PSC4 serial port B aka ttyPSC1
 		serial@11400 {
 			device_type = "serial";
-			compatible = "fsl,mpc5121-psc-uart";
+			compatible = "fsl,mpc5121-psc-uart", "fsl,mpc5121-psc";
 			// Logical port assignment needed until driver
 			// learns to use aliases
 			port-number = <1>;
 			cell-index = <4>;
 			reg = <0x11400 0x100>;
-			interrupts = <0x28 0x8>; // actually the fifo irq
+			interrupts = <40 0x8>;
 			interrupt-parent = < &ipic >;
+			rx-fifo-size = <16>;
+			tx-fifo-size = <16>;
 		};
 
-		pscsfifo@11f00 {
+		// PSC5 in ac97 mode
+		ac97@11500 {
+			compatible = "fsl,mpc5121-psc-ac97", "fsl,mpc5121-psc";
+			cell-index = <5>;
+			reg = <0x11500 0x100>;
+			interrupts = <40 0x8>;
+			interrupt-parent = < &ipic >;
+			fsl,mode = "ac97-slave";
+			rx-fifo-size = <384>;
+			tx-fifo-size = <384>;
+		};
+
+		pscfifo@11f00 {
 			compatible = "fsl,mpc5121-psc-fifo";
 			reg = <0x11f00 0x100>;
-			interrupts = <0x28 0x8>;
+			interrupts = <40 0x8>;
 			interrupt-parent = < &ipic >;
 		};
+
+		dma@14000 {
+			compatible = "fsl,mpc5121-dma2";
+			reg = <0x14000 0x1800>;
+			interrupts = <65 0x8>;
+			interrupt-parent = < &ipic >;
+		};
+
+	};
+
+	pci: pci@80008500 {
+		interrupt-map-mask = <0xf800 0x0 0x0 0x7>;
+		interrupt-map = <
+				// IDSEL 0x15 - Slot 1 PCI
+				 0xa800 0x0 0x0 0x1 &cpld_pic 0x0 0x8
+				 0xa800 0x0 0x0 0x2 &cpld_pic 0x1 0x8
+				 0xa800 0x0 0x0 0x3 &cpld_pic 0x2 0x8
+				 0xa800 0x0 0x0 0x4 &cpld_pic 0x3 0x8
+
+				// IDSEL 0x16 - Slot 2 MiniPCI
+				 0xb000 0x0 0x0 0x1 &cpld_pic 0x4 0x8
+				 0xb000 0x0 0x0 0x2 &cpld_pic 0x5 0x8
+
+				// IDSEL 0x17 - Slot 3 MiniPCI
+				 0xb800 0x0 0x0 0x1 &cpld_pic 0x6 0x8
+				 0xb800 0x0 0x0 0x2 &cpld_pic 0x7 0x8
+				>;
+		interrupt-parent = < &ipic >;
+		interrupts = <1 0x8>;
+		bus-range = <0 0>;
+		ranges = <0x42000000 0x0 0xa0000000 0xa0000000 0x0 0x10000000
+			  0x02000000 0x0 0xb0000000 0xb0000000 0x0 0x10000000
+			  0x01000000 0x0 0x00000000 0x84000000 0x0 0x01000000>;
+		clock-frequency = <0>;
+		#interrupt-cells = <1>;
+		#size-cells = <2>;
+		#address-cells = <3>;
+		reg = <0x80008500 0x100>;
+		compatible = "fsl,mpc5121-pci";
+		device_type = "pci";
 	};
 };

arch/powerpc/boot/dts/tqm5200.dts

@@ -70,6 +70,20 @@
 			fsl,has-wdt;
 		};
 
+		can@900 {
+			compatible = "fsl,mpc5200-mscan";
+			interrupts = <2 17 0>;
+			interrupt-parent = <&mpc5200_pic>;
+			reg = <0x900 0x80>;
+		};
+
+		can@980 {
+			compatible = "fsl,mpc5200-mscan";
+			interrupts = <2 18 0>;
+			interrupt-parent = <&mpc5200_pic>;
+			reg = <0x980 0x80>;
+		};
+
 		gpio@b00 {
 			compatible = "fsl,mpc5200-gpio";
 			reg = <0xb00 0x40>;

arch/powerpc/platforms/512x/Kconfig

@@ -2,18 +2,29 @@ config PPC_MPC512x
 	bool
 	select FSL_SOC
 	select IPIC
-	default n
+	select PPC_CLOCK
 
 config PPC_MPC5121
 	bool
 	select PPC_MPC512x
-	default n
 
 config MPC5121_ADS
 	bool "Freescale MPC5121E ADS"
 	depends on PPC_MULTIPLATFORM && PPC32
 	select DEFAULT_UIMAGE
 	select PPC_MPC5121
+	select MPC5121_ADS_CPLD
 	help
 	  This option enables support for the MPC5121E ADS board.
-	default n
+
+config MPC5121_GENERIC
+	bool "Generic support for simple MPC5121 based boards"
+	depends on PPC_MULTIPLATFORM && PPC32
+	select DEFAULT_UIMAGE
+	select PPC_MPC5121
+	help
+	  This option enables support for simple MPC5121 based boards
+	  which do not need custom platform specific setup.
+
+	  Compatible boards include:  Protonic LVT base boards (ZANMCU
+	  and VICVT2).

arch/powerpc/platforms/512x/Makefile

@@ -1,4 +1,6 @@
 #
 # Makefile for the Freescale PowerPC 512x linux kernel.
 #
-obj-$(CONFIG_MPC5121_ADS)	+= mpc5121_ads.o
+obj-y				+= clock.o mpc512x_shared.o
+obj-$(CONFIG_MPC5121_ADS)	+= mpc5121_ads.o mpc5121_ads_cpld.o
+obj-$(CONFIG_MPC5121_GENERIC)	+= mpc5121_generic.o

arch/powerpc/platforms/512x/clock.c

@@ -0,0 +1,729 @@
+/*
+ * Copyright (C) 2007,2008 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * Author: John Rigby <jrigby@freescale.com>
+ *
+ * Implements the clk api defined in include/linux/clk.h
+ *
+ *    Original based on linux/arch/arm/mach-integrator/clock.c
+ *
+ *    Copyright (C) 2004 ARM Limited.
+ *    Written by Deep Blue Solutions Limited.
+ *
+ * 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.
+ */
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/string.h>
+#include <linux/clk.h>
+#include <linux/mutex.h>
+#include <linux/io.h>
+
+#include <linux/of_platform.h>
+#include <asm/mpc512x.h>
+#include <asm/clk_interface.h>
+
+#undef CLK_DEBUG
+
+static int clocks_initialized;
+
+#define CLK_HAS_RATE	0x1	/* has rate in MHz */
+#define CLK_HAS_CTRL	0x2	/* has control reg and bit */
+
+struct clk {
+	struct list_head node;
+	char name[32];
+	int flags;
+	struct device *dev;
+	unsigned long rate;
+	struct module *owner;
+	void (*calc) (struct clk *);
+	struct clk *parent;
+	int reg, bit;		/* CLK_HAS_CTRL */
+	int div_shift;		/* only used by generic_div_clk_calc */
+};
+
+static LIST_HEAD(clocks);
+static DEFINE_MUTEX(clocks_mutex);
+
+static struct clk *mpc5121_clk_get(struct device *dev, const char *id)
+{
+	struct clk *p, *clk = ERR_PTR(-ENOENT);
+	int dev_match = 0;
+	int id_match = 0;
+
+	if (dev == NULL && id == NULL)
+		return NULL;
+
+	mutex_lock(&clocks_mutex);
+	list_for_each_entry(p, &clocks, node) {
+		if (dev && dev == p->dev)
+			dev_match++;
+		if (strcmp(id, p->name) == 0)
+			id_match++;
+		if ((dev_match || id_match) && try_module_get(p->owner)) {
+			clk = p;
+			break;
+		}
+	}
+	mutex_unlock(&clocks_mutex);
+
+	return clk;
+}
+
+#ifdef CLK_DEBUG
+static void dump_clocks(void)
+{
+	struct clk *p;
+
+	mutex_lock(&clocks_mutex);
+	printk(KERN_INFO "CLOCKS:\n");
+	list_for_each_entry(p, &clocks, node) {
+		printk(KERN_INFO "  %s %ld", p->name, p->rate);
+		if (p->parent)
+			printk(KERN_INFO " %s %ld", p->parent->name,
+			       p->parent->rate);
+		if (p->flags & CLK_HAS_CTRL)
+			printk(KERN_INFO " reg/bit %d/%d", p->reg, p->bit);
+		printk("\n");
+	}
+	mutex_unlock(&clocks_mutex);
+}
+#define	DEBUG_CLK_DUMP() dump_clocks()
+#else
+#define	DEBUG_CLK_DUMP()
+#endif
+
+
+static void mpc5121_clk_put(struct clk *clk)
+{
+	module_put(clk->owner);
+}
+
+#define NRPSC 12
+
+struct mpc512x_clockctl {
+	u32 spmr;		/* System PLL Mode Reg */
+	u32 sccr[2];		/* System Clk Ctrl Reg 1 & 2 */
+	u32 scfr1;		/* System Clk Freq Reg 1 */
+	u32 scfr2;		/* System Clk Freq Reg 2 */
+	u32 reserved;
+	u32 bcr;		/* Bread Crumb Reg */
+	u32 pccr[NRPSC];	/* PSC Clk Ctrl Reg 0-11 */
+	u32 spccr;		/* SPDIF Clk Ctrl Reg */
+	u32 cccr;		/* CFM Clk Ctrl Reg */
+	u32 dccr;		/* DIU Clk Cnfg Reg */
+};
+
+struct mpc512x_clockctl __iomem *clockctl;
+
+static int mpc5121_clk_enable(struct clk *clk)
+{
+	unsigned int mask;
+
+	if (clk->flags & CLK_HAS_CTRL) {
+		mask = in_be32(&clockctl->sccr[clk->reg]);
+		mask |= 1 << clk->bit;
+		out_be32(&clockctl->sccr[clk->reg], mask);
+	}
+	return 0;
+}
+
+static void mpc5121_clk_disable(struct clk *clk)
+{
+	unsigned int mask;
+
+	if (clk->flags & CLK_HAS_CTRL) {
+		mask = in_be32(&clockctl->sccr[clk->reg]);
+		mask &= ~(1 << clk->bit);
+		out_be32(&clockctl->sccr[clk->reg], mask);
+	}
+}
+
+static unsigned long mpc5121_clk_get_rate(struct clk *clk)
+{
+	if (clk->flags & CLK_HAS_RATE)
+		return clk->rate;
+	else
+		return 0;
+}
+
+static long mpc5121_clk_round_rate(struct clk *clk, unsigned long rate)
+{
+	return rate;
+}
+
+static int mpc5121_clk_set_rate(struct clk *clk, unsigned long rate)
+{
+	return 0;
+}
+
+static int clk_register(struct clk *clk)
+{
+	mutex_lock(&clocks_mutex);
+	list_add(&clk->node, &clocks);
+	mutex_unlock(&clocks_mutex);
+	return 0;
+}
+
+static unsigned long spmf_mult(void)
+{
+	/*
+	 * Convert spmf to multiplier
+	 */
+	static int spmf_to_mult[] = {
+		68, 1, 12, 16,
+		20, 24, 28, 32,
+		36, 40, 44, 48,
+		52, 56, 60, 64
+	};
+	int spmf = (clockctl->spmr >> 24) & 0xf;
+	return spmf_to_mult[spmf];
+}
+
+static unsigned long sysdiv_div_x_2(void)
+{
+	/*
+	 * Convert sysdiv to divisor x 2
+	 * Some divisors have fractional parts so
+	 * multiply by 2 then divide by this value
+	 */
+	static int sysdiv_to_div_x_2[] = {
+		4, 5, 6, 7,
+		8, 9, 10, 14,
+		12, 16, 18, 22,
+		20, 24, 26, 30,
+		28, 32, 34, 38,
+		36, 40, 42, 46,
+		44, 48, 50, 54,
+		52, 56, 58, 62,
+		60, 64, 66,
+	};
+	int sysdiv = (clockctl->scfr2 >> 26) & 0x3f;
+	return sysdiv_to_div_x_2[sysdiv];
+}
+
+static unsigned long ref_to_sys(unsigned long rate)
+{
+	rate *= spmf_mult();
+	rate *= 2;
+	rate /= sysdiv_div_x_2();
+
+	return rate;
+}
+
+static unsigned long sys_to_ref(unsigned long rate)
+{
+	rate *= sysdiv_div_x_2();
+	rate /= 2;
+	rate /= spmf_mult();
+
+	return rate;
+}
+
+static long ips_to_ref(unsigned long rate)
+{
+	int ips_div = (clockctl->scfr1 >> 23) & 0x7;
+
+	rate *= ips_div;	/* csb_clk = ips_clk * ips_div */
+	rate *= 2;		/* sys_clk = csb_clk * 2 */
+	return sys_to_ref(rate);
+}
+
+static unsigned long devtree_getfreq(char *clockname)
+{
+	struct device_node *np;
+	const unsigned int *prop;
+	unsigned int val = 0;
+
+	np = of_find_compatible_node(NULL, NULL, "fsl,mpc5121-immr");
+	if (np) {
+		prop = of_get_property(np, clockname, NULL);
+		if (prop)
+			val = *prop;
+	    of_node_put(np);
+	}
+	return val;
+}
+
+static void ref_clk_calc(struct clk *clk)
+{
+	unsigned long rate;
+
+	rate = devtree_getfreq("bus-frequency");
+	if (rate == 0) {
+		printk(KERN_ERR "No bus-frequency in dev tree\n");
+		clk->rate = 0;
+		return;
+	}
+	clk->rate = ips_to_ref(rate);
+}
+
+static struct clk ref_clk = {
+	.name = "ref_clk",
+	.calc = ref_clk_calc,
+};
+
+
+static void sys_clk_calc(struct clk *clk)
+{
+	clk->rate = ref_to_sys(ref_clk.rate);
+}
+
+static struct clk sys_clk = {
+	.name = "sys_clk",
+	.calc = sys_clk_calc,
+};
+
+static void diu_clk_calc(struct clk *clk)
+{
+	int diudiv_x_2 = clockctl->scfr1 & 0xff;
+	unsigned long rate;
+
+	rate = sys_clk.rate;
+
+	rate *= 2;
+	rate /= diudiv_x_2;
+
+	clk->rate = rate;
+}
+
+static void half_clk_calc(struct clk *clk)
+{
+	clk->rate = clk->parent->rate / 2;
+}
+
+static void generic_div_clk_calc(struct clk *clk)
+{
+	int div = (clockctl->scfr1 >> clk->div_shift) & 0x7;
+
+	clk->rate = clk->parent->rate / div;
+}
+
+static void unity_clk_calc(struct clk *clk)
+{
+	clk->rate = clk->parent->rate;
+}
+
+static struct clk csb_clk = {
+	.name = "csb_clk",
+	.calc = half_clk_calc,
+	.parent = &sys_clk,
+};
+
+static void e300_clk_calc(struct clk *clk)
+{
+	int spmf = (clockctl->spmr >> 16) & 0xf;
+	int ratex2 = clk->parent->rate * spmf;
+
+	clk->rate = ratex2 / 2;
+}
+
+static struct clk e300_clk = {
+	.name = "e300_clk",
+	.calc = e300_clk_calc,
+	.parent = &csb_clk,
+};
+
+static struct clk ips_clk = {
+	.name = "ips_clk",
+	.calc = generic_div_clk_calc,
+	.parent = &csb_clk,
+	.div_shift = 23,
+};
+
+/*
+ * Clocks controlled by SCCR1 (.reg = 0)
+ */
+static struct clk lpc_clk = {
+	.name = "lpc_clk",
+	.flags = CLK_HAS_CTRL,
+	.reg = 0,
+	.bit = 30,
+	.calc = generic_div_clk_calc,
+	.parent = &ips_clk,
+	.div_shift = 11,
+};
+
+static struct clk nfc_clk = {
+	.name = "nfc_clk",
+	.flags = CLK_HAS_CTRL,
+	.reg = 0,
+	.bit = 29,
+	.calc = generic_div_clk_calc,
+	.parent = &ips_clk,
+	.div_shift = 8,
+};
+
+static struct clk pata_clk = {
+	.name = "pata_clk",
+	.flags = CLK_HAS_CTRL,
+	.reg = 0,
+	.bit = 28,
+	.calc = unity_clk_calc,
+	.parent = &ips_clk,
+};
+
+/*
+ * PSC clocks (bits 27 - 16)
+ * are setup elsewhere
+ */
+
+static struct clk sata_clk = {
+	.name = "sata_clk",
+	.flags = CLK_HAS_CTRL,
+	.reg = 0,
+	.bit = 14,
+	.calc = unity_clk_calc,
+	.parent = &ips_clk,
+};
+
+static struct clk fec_clk = {
+	.name = "fec_clk",
+	.flags = CLK_HAS_CTRL,
+	.reg = 0,
+	.bit = 13,
+	.calc = unity_clk_calc,
+	.parent = &ips_clk,
+};
+
+static struct clk pci_clk = {
+	.name = "pci_clk",
+	.flags = CLK_HAS_CTRL,
+	.reg = 0,
+	.bit = 11,
+	.calc = generic_div_clk_calc,
+	.parent = &csb_clk,
+	.div_shift = 20,
+};
+
+/*
+ * Clocks controlled by SCCR2 (.reg = 1)
+ */
+static struct clk diu_clk = {
+	.name = "diu_clk",
+	.flags = CLK_HAS_CTRL,
+	.reg = 1,
+	.bit = 31,
+	.calc = diu_clk_calc,
+};
+
+static struct clk axe_clk = {
+	.name = "axe_clk",
+	.flags = CLK_HAS_CTRL,
+	.reg = 1,
+	.bit = 30,
+	.calc = unity_clk_calc,
+	.parent = &csb_clk,
+};
+
+static struct clk usb1_clk = {
+	.name = "usb1_clk",
+	.flags = CLK_HAS_CTRL,
+	.reg = 1,
+	.bit = 28,
+	.calc = unity_clk_calc,
+	.parent = &csb_clk,
+};
+
+static struct clk usb2_clk = {
+	.name = "usb2_clk",
+	.flags = CLK_HAS_CTRL,
+	.reg = 1,
+	.bit = 27,
+	.calc = unity_clk_calc,
+	.parent = &csb_clk,
+};
+
+static struct clk i2c_clk = {
+	.name = "i2c_clk",
+	.flags = CLK_HAS_CTRL,
+	.reg = 1,
+	.bit = 26,
+	.calc = unity_clk_calc,
+	.parent = &ips_clk,
+};
+
+static struct clk mscan_clk = {
+	.name = "mscan_clk",
+	.flags = CLK_HAS_CTRL,
+	.reg = 1,
+	.bit = 25,
+	.calc = unity_clk_calc,
+	.parent = &ips_clk,
+};
+
+static struct clk sdhc_clk = {
+	.name = "sdhc_clk",
+	.flags = CLK_HAS_CTRL,
+	.reg = 1,
+	.bit = 24,
+	.calc = unity_clk_calc,
+	.parent = &ips_clk,
+};
+
+static struct clk mbx_bus_clk = {
+	.name = "mbx_bus_clk",
+	.flags = CLK_HAS_CTRL,
+	.reg = 1,
+	.bit = 22,
+	.calc = half_clk_calc,
+	.parent = &csb_clk,
+};
+
+static struct clk mbx_clk = {
+	.name = "mbx_clk",
+	.flags = CLK_HAS_CTRL,
+	.reg = 1,
+	.bit = 21,
+	.calc = unity_clk_calc,
+	.parent = &csb_clk,
+};
+
+static struct clk mbx_3d_clk = {
+	.name = "mbx_3d_clk",
+	.flags = CLK_HAS_CTRL,
+	.reg = 1,
+	.bit = 20,
+	.calc = generic_div_clk_calc,
+	.parent = &mbx_bus_clk,
+	.div_shift = 14,
+};
+
+static void psc_mclk_in_calc(struct clk *clk)
+{
+	clk->rate = devtree_getfreq("psc_mclk_in");
+	if (!clk->rate)
+		clk->rate = 25000000;
+}
+
+static struct clk psc_mclk_in = {
+	.name = "psc_mclk_in",
+	.calc = psc_mclk_in_calc,
+};
+
+static struct clk spdif_txclk = {
+	.name = "spdif_txclk",
+	.flags = CLK_HAS_CTRL,
+	.reg = 1,
+	.bit = 23,
+};
+
+static struct clk spdif_rxclk = {
+	.name = "spdif_rxclk",
+	.flags = CLK_HAS_CTRL,
+	.reg = 1,
+	.bit = 23,
+};
+
+static void ac97_clk_calc(struct clk *clk)
+{
+	/* ac97 bit clock is always 24.567 MHz */
+	clk->rate = 24567000;
+}
+
+static struct clk ac97_clk = {
+	.name = "ac97_clk_in",
+	.calc = ac97_clk_calc,
+};
+
+struct clk *rate_clks[] = {
+	&ref_clk,
+	&sys_clk,
+	&diu_clk,
+	&csb_clk,
+	&e300_clk,
+	&ips_clk,
+	&fec_clk,
+	&sata_clk,
+	&pata_clk,
+	&nfc_clk,
+	&lpc_clk,
+	&mbx_bus_clk,
+	&mbx_clk,
+	&mbx_3d_clk,
+	&axe_clk,
+	&usb1_clk,
+	&usb2_clk,
+	&i2c_clk,
+	&mscan_clk,
+	&sdhc_clk,
+	&pci_clk,
+	&psc_mclk_in,
+	&spdif_txclk,
+	&spdif_rxclk,
+	&ac97_clk,
+	NULL
+};
+
+static void rate_clk_init(struct clk *clk)
+{
+	if (clk->calc) {
+		clk->calc(clk);
+		clk->flags |= CLK_HAS_RATE;
+		clk_register(clk);
+	} else {
+		printk(KERN_WARNING
+		       "Could not initialize clk %s without a calc routine\n",
+		       clk->name);
+	}
+}
+
+static void rate_clks_init(void)
+{
+	struct clk **cpp, *clk;
+
+	cpp = rate_clks;
+	while ((clk = *cpp++))
+		rate_clk_init(clk);
+}
+
+/*
+ * There are two clk enable registers with 32 enable bits each
+ * psc clocks and device clocks are all stored in dev_clks
+ */
+struct clk dev_clks[2][32];
+
+/*
+ * Given a psc number return the dev_clk
+ * associated with it
+ */
+static struct clk *psc_dev_clk(int pscnum)
+{
+	int reg, bit;
+	struct clk *clk;
+
+	reg = 0;
+	bit = 27 - pscnum;
+
+	clk = &dev_clks[reg][bit];
+	clk->reg = 0;
+	clk->bit = bit;
+	return clk;
+}
+
+/*
+ * PSC clock rate calculation
+ */
+static void psc_calc_rate(struct clk *clk, int pscnum, struct device_node *np)
+{
+	unsigned long mclk_src = sys_clk.rate;
+	unsigned long mclk_div;
+
+	/*
+	 * Can only change value of mclk divider
+	 * when the divider is disabled.
+	 *
+	 * Zero is not a valid divider so minimum
+	 * divider is 1
+	 *
+	 * disable/set divider/enable
+	 */
+	out_be32(&clockctl->pccr[pscnum], 0);
+	out_be32(&clockctl->pccr[pscnum], 0x00020000);
+	out_be32(&clockctl->pccr[pscnum], 0x00030000);
+
+	if (clockctl->pccr[pscnum] & 0x80) {
+		clk->rate = spdif_rxclk.rate;
+		return;
+	}
+
+	switch ((clockctl->pccr[pscnum] >> 14) & 0x3) {
+	case 0:
+		mclk_src = sys_clk.rate;
+		break;
+	case 1:
+		mclk_src = ref_clk.rate;
+		break;
+	case 2:
+		mclk_src = psc_mclk_in.rate;
+		break;
+	case 3:
+		mclk_src = spdif_txclk.rate;
+		break;
+	}
+
+	mclk_div = ((clockctl->pccr[pscnum] >> 17) & 0x7fff) + 1;
+	clk->rate = mclk_src / mclk_div;
+}
+
+/*
+ * Find all psc nodes in device tree and assign a clock
+ * with name "psc%d_mclk" and dev pointing at the device
+ * returned from of_find_device_by_node
+ */
+static void psc_clks_init(void)
+{
+	struct device_node *np;
+	const u32 *cell_index;
+	struct of_device *ofdev;
+
+	for_each_compatible_node(np, NULL, "fsl,mpc5121-psc") {
+		cell_index = of_get_property(np, "cell-index", NULL);
+		if (cell_index) {
+			int pscnum = *cell_index;
+			struct clk *clk = psc_dev_clk(pscnum);
+
+			clk->flags = CLK_HAS_RATE | CLK_HAS_CTRL;
+			ofdev = of_find_device_by_node(np);
+			clk->dev = &ofdev->dev;
+			/*
+			 * AC97 is special rate clock does
+			 * not go through normal path
+			 */
+			if (strcmp("ac97", np->name) == 0)
+				clk->rate = ac97_clk.rate;
+			else
+				psc_calc_rate(clk, pscnum, np);
+			sprintf(clk->name, "psc%d_mclk", pscnum);
+			clk_register(clk);
+			clk_enable(clk);
+		}
+	}
+}
+
+static struct clk_interface mpc5121_clk_functions = {
+	.clk_get		= mpc5121_clk_get,
+	.clk_enable		= mpc5121_clk_enable,
+	.clk_disable		= mpc5121_clk_disable,
+	.clk_get_rate		= mpc5121_clk_get_rate,
+	.clk_put		= mpc5121_clk_put,
+	.clk_round_rate		= mpc5121_clk_round_rate,
+	.clk_set_rate		= mpc5121_clk_set_rate,
+	.clk_set_parent		= NULL,
+	.clk_get_parent		= NULL,
+};
+
+static int
+mpc5121_clk_init(void)
+{
+	struct device_node *np;
+
+	np = of_find_compatible_node(NULL, NULL, "fsl,mpc5121-clock");
+	if (np) {
+		clockctl = of_iomap(np, 0);
+		of_node_put(np);
+	}
+
+	if (!clockctl) {
+		printk(KERN_ERR "Could not map clock control registers\n");
+		return 0;
+	}
+
+	rate_clks_init();
+	psc_clks_init();
+
+	/* leave clockctl mapped forever */
+	/*iounmap(clockctl); */
+	DEBUG_CLK_DUMP();
+	clocks_initialized++;
+	clk_functions = mpc5121_clk_functions;
+	return 0;
+}
+
+
+arch_initcall(mpc5121_clk_init);

arch/powerpc/platforms/512x/mpc5121_ads.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
+ * Copyright (C) 2007, 2008 Freescale Semiconductor, Inc. All rights reserved.
  *
  * Author: John Rigby, <jrigby@freescale.com>, Thur Mar 29 2007
  *
@@ -15,7 +15,6 @@
 
 #include <linux/kernel.h>
 #include <linux/io.h>
-#include <linux/irq.h>
 #include <linux/of_platform.h>
 
 #include <asm/machdep.h>
@@ -23,65 +22,22 @@
 #include <asm/prom.h>
 #include <asm/time.h>
 
-/**
- * 	mpc512x_find_ips_freq - Find the IPS bus frequency for a device
- * 	@node:	device node
- *
- * 	Returns IPS bus frequency, or 0 if the bus frequency cannot be found.
- */
-unsigned long
-mpc512x_find_ips_freq(struct device_node *node)
-{
-	struct device_node *np;
-	const unsigned int *p_ips_freq = NULL;
-
-	of_node_get(node);
-	while (node) {
-		p_ips_freq = of_get_property(node, "bus-frequency", NULL);
-		if (p_ips_freq)
-			break;
-
-		np = of_get_parent(node);
-		of_node_put(node);
-		node = np;
-	}
-	if (node)
-		of_node_put(node);
-
-	return p_ips_freq ? *p_ips_freq : 0;
-}
-EXPORT_SYMBOL(mpc512x_find_ips_freq);
-
-static struct of_device_id __initdata of_bus_ids[] = {
-	{ .name = "soc", },
-	{ .name = "localbus", },
-	{},
-};
+#include "mpc512x.h"
+#include "mpc5121_ads.h"
 
-static void __init mpc5121_ads_declare_of_platform_devices(void)
+static void __init mpc5121_ads_setup_arch(void)
 {
-	/* Find every child of the SOC node and add it to of_platform */
-	if (of_platform_bus_probe(NULL, of_bus_ids, NULL))
-		printk(KERN_ERR __FILE__ ": "
-			"Error while probing of_platform bus\n");
+	printk(KERN_INFO "MPC5121 ADS board from Freescale Semiconductor\n");
+	/*
+	 * cpld regs are needed early
+	 */
+	mpc5121_ads_cpld_map();
 }
 
 static void __init mpc5121_ads_init_IRQ(void)
 {
-	struct device_node *np;
-
-	np = of_find_compatible_node(NULL, NULL, "fsl,ipic");
-	if (!np)
-		return;
-
-	ipic_init(np, 0);
-	of_node_put(np);
-
-	/*
-	 * Initialize the default interrupt mapping priorities,
-	 * in case the boot rom changed something on us.
-	 */
-	ipic_set_default_priority();
+	mpc512x_init_IRQ();
+	mpc5121_ads_cpld_pic_init();
 }
 
 /*
@@ -97,7 +53,8 @@ static int __init mpc5121_ads_probe(void)
 define_machine(mpc5121_ads) {
 	.name			= "MPC5121 ADS",
 	.probe			= mpc5121_ads_probe,
-	.init			= mpc5121_ads_declare_of_platform_devices,
+	.setup_arch		= mpc5121_ads_setup_arch,
+	.init			= mpc512x_declare_of_platform_devices,
 	.init_IRQ		= mpc5121_ads_init_IRQ,
 	.get_irq		= ipic_get_irq,
 	.calibrate_decr		= generic_calibrate_decr,

arch/powerpc/platforms/512x/mpc5121_ads.h

@@ -0,0 +1,16 @@
+/*
+ * Copyright (C) 2008 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * 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.
+ *
+ * Prototypes for ADS5121 specific code
+ */
+
+#ifndef __MPC512ADS_H__
+#define __MPC512ADS_H__
+extern void __init mpc5121_ads_cpld_map(void);
+extern void __init mpc5121_ads_cpld_pic_init(void);
+#endif				/* __MPC512ADS_H__ */

arch/powerpc/platforms/512x/mpc5121_ads_cpld.c

@@ -0,0 +1,204 @@
+/*
+ * Copyright (C) 2008 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * Author: John Rigby, <jrigby@freescale.com>
+ *
+ * Description:
+ * MPC5121ADS CPLD irq handling
+ *
+ * This 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.
+ */
+
+#undef DEBUG
+
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+#include <asm/prom.h>
+
+static struct device_node *cpld_pic_node;
+static struct irq_host *cpld_pic_host;
+
+/*
+ * Bits to ignore in the misc_status register
+ * 0x10 touch screen pendown is hard routed to irq1
+ * 0x02 pci status is read from pci status register
+ */
+#define MISC_IGNORE 0x12
+
+/*
+ * Nothing to ignore in pci status register
+ */
+#define PCI_IGNORE 0x00
+
+struct cpld_pic {
+	u8 pci_mask;
+	u8 pci_status;
+	u8 route;
+	u8 misc_mask;
+	u8 misc_status;
+	u8 misc_control;
+};
+
+static struct cpld_pic __iomem *cpld_regs;
+
+static void __iomem *
+irq_to_pic_mask(unsigned int irq)
+{
+	return irq <= 7 ? &cpld_regs->pci_mask : &cpld_regs->misc_mask;
+}
+
+static unsigned int
+irq_to_pic_bit(unsigned int irq)
+{
+	return 1 << (irq & 0x7);
+}
+
+static void
+cpld_mask_irq(unsigned int irq)
+{
+	unsigned int cpld_irq = (unsigned int)irq_map[irq].hwirq;
+	void __iomem *pic_mask = irq_to_pic_mask(cpld_irq);
+
+	out_8(pic_mask,
+	      in_8(pic_mask) | irq_to_pic_bit(cpld_irq));
+}
+
+static void
+cpld_unmask_irq(unsigned int irq)
+{
+	unsigned int cpld_irq = (unsigned int)irq_map[irq].hwirq;
+	void __iomem *pic_mask = irq_to_pic_mask(cpld_irq);
+
+	out_8(pic_mask,
+	      in_8(pic_mask) & ~irq_to_pic_bit(cpld_irq));
+}
+
+static struct irq_chip cpld_pic = {
+	.typename = " CPLD PIC ",
+	.mask = cpld_mask_irq,
+	.ack = cpld_mask_irq,
+	.unmask = cpld_unmask_irq,
+};
+
+static int
+cpld_pic_get_irq(int offset, u8 ignore, u8 __iomem *statusp,
+			    u8 __iomem *maskp)
+{
+	int cpld_irq;
+	u8 status = in_8(statusp);
+	u8 mask = in_8(maskp);
+
+	/* ignore don't cares and masked irqs */
+	status |= (ignore | mask);
+
+	if (status == 0xff)
+		return NO_IRQ_IGNORE;
+
+	cpld_irq = ffz(status) + offset;
+
+	return irq_linear_revmap(cpld_pic_host, cpld_irq);
+}
+
+static void
+cpld_pic_cascade(unsigned int irq, struct irq_desc *desc)
+{
+	irq = cpld_pic_get_irq(0, PCI_IGNORE, &cpld_regs->pci_status,
+		&cpld_regs->pci_mask);
+	if (irq != NO_IRQ && irq != NO_IRQ_IGNORE) {
+		generic_handle_irq(irq);
+		return;
+	}
+
+	irq = cpld_pic_get_irq(8, MISC_IGNORE, &cpld_regs->misc_status,
+		&cpld_regs->misc_mask);
+	if (irq != NO_IRQ && irq != NO_IRQ_IGNORE) {
+		generic_handle_irq(irq);
+		return;
+	}
+}
+
+static int
+cpld_pic_host_match(struct irq_host *h, struct device_node *node)
+{
+	return cpld_pic_node == node;
+}
+
+static int
+cpld_pic_host_map(struct irq_host *h, unsigned int virq,
+			     irq_hw_number_t hw)
+{
+	get_irq_desc(virq)->status |= IRQ_LEVEL;
+	set_irq_chip_and_handler(virq, &cpld_pic, handle_level_irq);
+	return 0;
+}
+
+static struct
+irq_host_ops cpld_pic_host_ops = {
+	.match = cpld_pic_host_match,
+	.map = cpld_pic_host_map,
+};
+
+void __init
+mpc5121_ads_cpld_map(void)
+{
+	struct device_node *np = NULL;
+
+	np = of_find_compatible_node(NULL, NULL, "fsl,mpc5121ads-cpld-pic");
+	if (!np) {
+		printk(KERN_ERR "CPLD PIC init: can not find cpld-pic node\n");
+		return;
+	}
+
+	cpld_regs = of_iomap(np, 0);
+	of_node_put(np);
+}
+
+void __init
+mpc5121_ads_cpld_pic_init(void)
+{
+	unsigned int cascade_irq;
+	struct device_node *np = NULL;
+
+	pr_debug("cpld_ic_init\n");
+
+	np = of_find_compatible_node(NULL, NULL, "fsl,mpc5121ads-cpld-pic");
+	if (!np) {
+		printk(KERN_ERR "CPLD PIC init: can not find cpld-pic node\n");
+		return;
+	}
+
+	if (!cpld_regs)
+		goto end;
+
+	cascade_irq = irq_of_parse_and_map(np, 0);
+	if (cascade_irq == NO_IRQ)
+		goto end;
+
+	/*
+	 * statically route touch screen pendown through 1
+	 * and ignore it here
+	 * route all others through our cascade irq
+	 */
+	out_8(&cpld_regs->route, 0xfd);
+	out_8(&cpld_regs->pci_mask, 0xff);
+	/* unmask pci ints in misc mask */
+	out_8(&cpld_regs->misc_mask, ~(MISC_IGNORE));
+
+	cpld_pic_node = of_node_get(np);
+
+	cpld_pic_host =
+	    irq_alloc_host(np, IRQ_HOST_MAP_LINEAR, 16, &cpld_pic_host_ops, 16);
+	if (!cpld_pic_host) {
+		printk(KERN_ERR "CPLD PIC: failed to allocate irq host!\n");
+		goto end;
+	}
+
+	set_irq_chained_handler(cascade_irq, cpld_pic_cascade);
+end:
+	of_node_put(np);
+}

arch/powerpc/platforms/512x/mpc5121_generic.c

@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2007,2008 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * Author: John Rigby, <jrigby@freescale.com>
+ *
+ * Description:
+ * MPC5121 SoC setup
+ *
+ * This 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.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/of_platform.h>
+
+#include <asm/machdep.h>
+#include <asm/ipic.h>
+#include <asm/prom.h>
+#include <asm/time.h>
+
+#include "mpc512x.h"
+
+/*
+ * list of supported boards
+ */
+static char *board[] __initdata = {
+	"prt,prtlvt",
+	NULL
+};
+
+/*
+ * Called very early, MMU is off, device-tree isn't unflattened
+ */
+static int __init mpc5121_generic_probe(void)
+{
+	unsigned long node = of_get_flat_dt_root();
+	int i = 0;
+
+	while (board[i]) {
+		if (of_flat_dt_is_compatible(node, board[i]))
+			break;
+		i++;
+	}
+
+	return board[i] != NULL;
+}
+
+define_machine(mpc5121_generic) {
+	.name			= "MPC5121 generic",
+	.probe			= mpc5121_generic_probe,
+	.init			= mpc512x_declare_of_platform_devices,
+	.init_IRQ		= mpc512x_init_IRQ,
+	.get_irq		= ipic_get_irq,
+	.calibrate_decr		= generic_calibrate_decr,
+};

arch/powerpc/platforms/512x/mpc512x.h

@@ -0,0 +1,17 @@
+/*
+ * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * 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.
+ *
+ * Prototypes for MPC512x shared code
+ */
+
+#ifndef __MPC512X_H__
+#define __MPC512X_H__
+extern unsigned long mpc512x_find_ips_freq(struct device_node *node);
+extern void __init mpc512x_init_IRQ(void);
+void __init mpc512x_declare_of_platform_devices(void);
+#endif				/* __MPC512X_H__ */

arch/powerpc/platforms/512x/mpc512x_shared.c

@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2007,2008 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * Author: John Rigby <jrigby@freescale.com>
+ *
+ * Description:
+ * MPC512x Shared code
+ *
+ * This 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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/of_platform.h>
+
+#include <asm/machdep.h>
+#include <asm/ipic.h>
+#include <asm/prom.h>
+#include <asm/time.h>
+
+#include "mpc512x.h"
+
+unsigned long
+mpc512x_find_ips_freq(struct device_node *node)
+{
+	struct device_node *np;
+	const unsigned int *p_ips_freq = NULL;
+
+	of_node_get(node);
+	while (node) {
+		p_ips_freq = of_get_property(node, "bus-frequency", NULL);
+		if (p_ips_freq)
+			break;
+
+		np = of_get_parent(node);
+		of_node_put(node);
+		node = np;
+	}
+	if (node)
+		of_node_put(node);
+
+	return p_ips_freq ? *p_ips_freq : 0;
+}
+EXPORT_SYMBOL(mpc512x_find_ips_freq);
+
+void __init mpc512x_init_IRQ(void)
+{
+	struct device_node *np;
+
+	np = of_find_compatible_node(NULL, NULL, "fsl,mpc5121-ipic");
+	if (!np)
+		return;
+
+	ipic_init(np, 0);
+	of_node_put(np);
+
+	/*
+	 * Initialize the default interrupt mapping priorities,
+	 * in case the boot rom changed something on us.
+	 */
+	ipic_set_default_priority();
+}
+
+/*
+ * Nodes to do bus probe on, soc and localbus
+ */
+static struct of_device_id __initdata of_bus_ids[] = {
+	{ .compatible = "fsl,mpc5121-immr", },
+	{ .compatible = "fsl,mpc5121-localbus", },
+	{},
+};
+
+void __init mpc512x_declare_of_platform_devices(void)
+{
+	if (of_platform_bus_probe(NULL, of_bus_ids, NULL))
+		printk(KERN_ERR __FILE__ ": "
+			"Error while probing of_platform bus\n");
+}
+

arch/powerpc/platforms/52xx/mpc52xx_pci.c

@@ -63,6 +63,7 @@
 
 #define MPC52xx_PCI_TCR_P		0x01000000
 #define MPC52xx_PCI_TCR_LD		0x00010000
+#define MPC52xx_PCI_TCR_WCT8		0x00000008
 
 #define MPC52xx_PCI_TBATR_DISABLE	0x0
 #define MPC52xx_PCI_TBATR_ENABLE	0x1
@@ -313,7 +314,7 @@ mpc52xx_pci_setup(struct pci_controller *hose,
 	out_be32(&pci_regs->tbatr1,
 		MPC52xx_PCI_TBATR_ENABLE | MPC52xx_PCI_TARGET_MEM );
 
-	out_be32(&pci_regs->tcr, MPC52xx_PCI_TCR_LD);
+	out_be32(&pci_regs->tcr, MPC52xx_PCI_TCR_LD | MPC52xx_PCI_TCR_WCT8);
 
 	tmp = in_be32(&pci_regs->gscr);
 #if 0

arch/powerpc/sysdev/bestcomm/bestcomm.c

@@ -443,7 +443,7 @@ mpc52xx_bcom_probe(struct of_device *op, const struct of_device_id *match)
 
 	/* Done ! */
 	printk(KERN_INFO "DMA: MPC52xx BestComm engine @%08lx ok !\n",
-		bcom_eng->regs_base);
+		(long)bcom_eng->regs_base);
 
 	return 0;
 

arch/powerpc/sysdev/bestcomm/gen_bd.c

@@ -20,6 +20,7 @@
 #include <asm/io.h>
 
 #include <asm/mpc52xx.h>
+#include <asm/mpc52xx_psc.h>
 
 #include "bestcomm.h"
 #include "bestcomm_priv.h"
@@ -253,6 +254,100 @@ bcom_gen_bd_tx_release(struct bcom_task *tsk)
 }
 EXPORT_SYMBOL_GPL(bcom_gen_bd_tx_release);
 
+/* ---------------------------------------------------------------------
+ * PSC support code
+ */
+
+/**
+ * bcom_psc_parameters - Bestcomm initialization value table for PSC devices
+ *
+ * This structure is only used internally.  It is a lookup table for PSC
+ * specific parameters to bestcomm tasks.
+ */
+static struct bcom_psc_params {
+	int rx_initiator;
+	int rx_ipr;
+	int tx_initiator;
+	int tx_ipr;
+} bcom_psc_params[] = {
+	[0] = {
+		.rx_initiator = BCOM_INITIATOR_PSC1_RX,
+		.rx_ipr = BCOM_IPR_PSC1_RX,
+		.tx_initiator = BCOM_INITIATOR_PSC1_TX,
+		.tx_ipr = BCOM_IPR_PSC1_TX,
+	},
+	[1] = {
+		.rx_initiator = BCOM_INITIATOR_PSC2_RX,
+		.rx_ipr = BCOM_IPR_PSC2_RX,
+		.tx_initiator = BCOM_INITIATOR_PSC2_TX,
+		.tx_ipr = BCOM_IPR_PSC2_TX,
+	},
+	[2] = {
+		.rx_initiator = BCOM_INITIATOR_PSC3_RX,
+		.rx_ipr = BCOM_IPR_PSC3_RX,
+		.tx_initiator = BCOM_INITIATOR_PSC3_TX,
+		.tx_ipr = BCOM_IPR_PSC3_TX,
+	},
+	[3] = {
+		.rx_initiator = BCOM_INITIATOR_PSC4_RX,
+		.rx_ipr = BCOM_IPR_PSC4_RX,
+		.tx_initiator = BCOM_INITIATOR_PSC4_TX,
+		.tx_ipr = BCOM_IPR_PSC4_TX,
+	},
+	[4] = {
+		.rx_initiator = BCOM_INITIATOR_PSC5_RX,
+		.rx_ipr = BCOM_IPR_PSC5_RX,
+		.tx_initiator = BCOM_INITIATOR_PSC5_TX,
+		.tx_ipr = BCOM_IPR_PSC5_TX,
+	},
+	[5] = {
+		.rx_initiator = BCOM_INITIATOR_PSC6_RX,
+		.rx_ipr = BCOM_IPR_PSC6_RX,
+		.tx_initiator = BCOM_INITIATOR_PSC6_TX,
+		.tx_ipr = BCOM_IPR_PSC6_TX,
+	},
+};
+
+/**
+ * bcom_psc_gen_bd_rx_init - Allocate a receive bcom_task for a PSC port
+ * @psc_num:	Number of the PSC to allocate a task for
+ * @queue_len:	number of buffer descriptors to allocate for the task
+ * @fifo:	physical address of FIFO register
+ * @maxbufsize:	Maximum receive data size in bytes.
+ *
+ * Allocate a bestcomm task structure for receiving data from a PSC.
+ */
+struct bcom_task * bcom_psc_gen_bd_rx_init(unsigned psc_num, int queue_len,
+					   phys_addr_t fifo, int maxbufsize)
+{
+	if (psc_num >= MPC52xx_PSC_MAXNUM)
+		return NULL;
+
+	return bcom_gen_bd_rx_init(queue_len, fifo,
+				   bcom_psc_params[psc_num].rx_initiator,
+				   bcom_psc_params[psc_num].rx_ipr,
+				   maxbufsize);
+}
+EXPORT_SYMBOL_GPL(bcom_psc_gen_bd_rx_init);
+
+/**
+ * bcom_psc_gen_bd_tx_init - Allocate a transmit bcom_task for a PSC port
+ * @psc_num:	Number of the PSC to allocate a task for
+ * @queue_len:	number of buffer descriptors to allocate for the task
+ * @fifo:	physical address of FIFO register
+ *
+ * Allocate a bestcomm task structure for transmitting data to a PSC.
+ */
+struct bcom_task *
+bcom_psc_gen_bd_tx_init(unsigned psc_num, int queue_len, phys_addr_t fifo)
+{
+	struct psc;
+	return bcom_gen_bd_tx_init(queue_len, fifo,
+				   bcom_psc_params[psc_num].tx_initiator,
+				   bcom_psc_params[psc_num].tx_ipr);
+}
+EXPORT_SYMBOL_GPL(bcom_psc_gen_bd_tx_init);
+
 
 MODULE_DESCRIPTION("BestComm General Buffer Descriptor tasks driver");
 MODULE_AUTHOR("Jeff Gibbons <jeff.gibbons@appspec.com>");

arch/powerpc/sysdev/bestcomm/gen_bd.h

@@ -44,5 +44,10 @@ extern void
 bcom_gen_bd_tx_release(struct bcom_task *tsk);
 
 
+/* PSC support utility wrappers */
+struct bcom_task * bcom_psc_gen_bd_rx_init(unsigned psc_num, int queue_len,
+					   phys_addr_t fifo, int maxbufsize);
+struct bcom_task * bcom_psc_gen_bd_tx_init(unsigned psc_num, int queue_len,
+					   phys_addr_t fifo);
 #endif  /* __BESTCOMM_GEN_BD_H__ */
 

arch/powerpc/sysdev/bestcomm/sram.c

@@ -86,7 +86,7 @@ int bcom_sram_init(struct device_node *sram_node, char *owner)
 	if (!bcom_sram->base_virt) {
 		printk(KERN_ERR "%s: bcom_sram_init: "
 			"Map error SRAM zone 0x%08lx (0x%0x)!\n",
-			owner, bcom_sram->base_phys, bcom_sram->size );
+			owner, (long)bcom_sram->base_phys, bcom_sram->size );
 		rv = -ENOMEM;
 		goto error_release;
 	}

arch/powerpc/sysdev/fsl_soc.c

@@ -414,139 +414,6 @@ err:
 
 arch_initcall(gfar_of_init);
 
-#ifdef CONFIG_I2C_BOARDINFO
-#include <linux/i2c.h>
-struct i2c_driver_device {
-	char	*of_device;
-	char	*i2c_type;
-};
-
-static struct i2c_driver_device i2c_devices[] __initdata = {
-	{"ricoh,rs5c372a", "rs5c372a"},
-	{"ricoh,rs5c372b", "rs5c372b"},
-	{"ricoh,rv5c386",  "rv5c386"},
-	{"ricoh,rv5c387a", "rv5c387a"},
-	{"dallas,ds1307",  "ds1307"},
-	{"dallas,ds1337",  "ds1337"},
-	{"dallas,ds1338",  "ds1338"},
-	{"dallas,ds1339",  "ds1339"},
-	{"dallas,ds1340",  "ds1340"},
-	{"stm,m41t00",     "m41t00"},
-	{"dallas,ds1374",  "ds1374"},
-	{"cirrus,cs4270",  "cs4270"},
-};
-
-static int __init of_find_i2c_driver(struct device_node *node,
-				     struct i2c_board_info *info)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(i2c_devices); i++) {
-		if (!of_device_is_compatible(node, i2c_devices[i].of_device))
-			continue;
-		if (strlcpy(info->type, i2c_devices[i].i2c_type,
-			    I2C_NAME_SIZE) >= I2C_NAME_SIZE)
-			return -ENOMEM;
-		return 0;
-	}
-
-	pr_warning("fsl_soc.c: unrecognized i2c node %s\n",
-		(const char *) of_get_property(node, "compatible", NULL));
-
-	return -ENODEV;
-}
-
-static void __init of_register_i2c_devices(struct device_node *adap_node,
-					   int bus_num)
-{
-	struct device_node *node = NULL;
-
-	while ((node = of_get_next_child(adap_node, node))) {
-		struct i2c_board_info info = {};
-		const u32 *addr;
-		int len;
-
-		addr = of_get_property(node, "reg", &len);
-		if (!addr || len < sizeof(int) || *addr > (1 << 10) - 1) {
-			printk(KERN_WARNING "fsl_soc.c: invalid i2c device entry\n");
-			continue;
-		}
-
-		info.irq = irq_of_parse_and_map(node, 0);
-		if (info.irq == NO_IRQ)
-			info.irq = -1;
-
-		if (of_find_i2c_driver(node, &info) < 0)
-			continue;
-
-		info.addr = *addr;
-
-		i2c_register_board_info(bus_num, &info, 1);
-	}
-}
-
-static int __init fsl_i2c_of_init(void)
-{
-	struct device_node *np;
-	unsigned int i = 0;
-	struct platform_device *i2c_dev;
-	int ret;
-
-	for_each_compatible_node(np, NULL, "fsl-i2c") {
-		struct resource r[2];
-		struct fsl_i2c_platform_data i2c_data;
-		const unsigned char *flags = NULL;
-		int idx;
-		const u32 *iprop;
-
-		memset(&r, 0, sizeof(r));
-		memset(&i2c_data, 0, sizeof(i2c_data));
-
-		ret = of_address_to_resource(np, 0, &r[0]);
-		if (ret)
-			goto err;
-
-		of_irq_to_resource(np, 0, &r[1]);
-
-		iprop = of_get_property(np, "cell-index", NULL);
-		idx = iprop ? *iprop : i;
-
-		i2c_dev = platform_device_register_simple("fsl-i2c", idx, r, 2);
-		if (IS_ERR(i2c_dev)) {
-			ret = PTR_ERR(i2c_dev);
-			goto err;
-		}
-
-		i2c_data.device_flags = 0;
-		flags = of_get_property(np, "dfsrr", NULL);
-		if (flags)
-			i2c_data.device_flags |= FSL_I2C_DEV_SEPARATE_DFSRR;
-
-		flags = of_get_property(np, "fsl5200-clocking", NULL);
-		if (flags)
-			i2c_data.device_flags |= FSL_I2C_DEV_CLOCK_5200;
-
-		ret =
-		    platform_device_add_data(i2c_dev, &i2c_data,
-					     sizeof(struct
-						    fsl_i2c_platform_data));
-		if (ret)
-			goto unreg;
-
-		of_register_i2c_devices(np, idx);
-		i++;
-	}
-
-	return 0;
-
-unreg:
-	platform_device_unregister(i2c_dev);
-err:
-	return ret;
-}
-
-arch_initcall(fsl_i2c_of_init);
-#endif
 
 #ifdef CONFIG_PPC_83xx
 static int __init mpc83xx_wdt_init(void)

drivers/ata/pata_mpc52xx.c

@@ -16,10 +16,10 @@
 #include <linux/slab.h>
 #include <linux/delay.h>
 #include <linux/libata.h>
+#include <linux/of_platform.h>
 
 #include <asm/types.h>
 #include <asm/prom.h>
-#include <asm/of_platform.h>
 #include <asm/mpc52xx.h>
 
 

drivers/i2c/busses/i2c-mpc.c

@@ -17,7 +17,8 @@
 #include <linux/module.h>
 #include <linux/sched.h>
 #include <linux/init.h>
-#include <linux/platform_device.h>
+#include <linux/of_platform.h>
+#include <linux/of_i2c.h>
 
 #include <asm/io.h>
 #include <linux/fsl_devices.h>
@@ -25,13 +26,13 @@
 #include <linux/interrupt.h>
 #include <linux/delay.h>
 
-#define MPC_I2C_ADDR  0x00
+#define DRV_NAME "mpc-i2c"
+
 #define MPC_I2C_FDR 	0x04
 #define MPC_I2C_CR	0x08
 #define MPC_I2C_SR	0x0c
 #define MPC_I2C_DR	0x10
 #define MPC_I2C_DFSRR 0x14
-#define MPC_I2C_REGION 0x20
 
 #define CCR_MEN  0x80
 #define CCR_MIEN 0x40
@@ -315,102 +316,117 @@ static struct i2c_adapter mpc_ops = {
 	.timeout = 1,
 };
 
-static int fsl_i2c_probe(struct platform_device *pdev)
+static int __devinit fsl_i2c_probe(struct of_device *op, const struct of_device_id *match)
 {
 	int result = 0;
 	struct mpc_i2c *i2c;
-	struct fsl_i2c_platform_data *pdata;
-	struct resource *r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-
-	pdata = (struct fsl_i2c_platform_data *) pdev->dev.platform_data;
 
 	i2c = kzalloc(sizeof(*i2c), GFP_KERNEL);
 	if (!i2c)
 		return -ENOMEM;
 
-	i2c->irq = platform_get_irq(pdev, 0);
-	if (i2c->irq < 0)
-		i2c->irq = NO_IRQ; /* Use polling */
+	if (of_get_property(op->node, "dfsrr", NULL))
+		i2c->flags |= FSL_I2C_DEV_SEPARATE_DFSRR;
 
-	i2c->flags = pdata->device_flags;
-	init_waitqueue_head(&i2c->queue);
+	if (of_device_is_compatible(op->node, "fsl,mpc5200-i2c") ||
+			of_device_is_compatible(op->node, "mpc5200-i2c"))
+		i2c->flags |= FSL_I2C_DEV_CLOCK_5200;
 
-	i2c->base = ioremap((phys_addr_t)r->start, MPC_I2C_REGION);
+	init_waitqueue_head(&i2c->queue);
 
+	i2c->base = of_iomap(op->node, 0);
 	if (!i2c->base) {
 		printk(KERN_ERR "i2c-mpc - failed to map controller\n");
 		result = -ENOMEM;
 		goto fail_map;
 	}
 
-	if (i2c->irq != NO_IRQ)
-		if ((result = request_irq(i2c->irq, mpc_i2c_isr,
-					  IRQF_SHARED, "i2c-mpc", i2c)) < 0) {
-			printk(KERN_ERR
-			       "i2c-mpc - failed to attach interrupt\n");
-			goto fail_irq;
+	i2c->irq = irq_of_parse_and_map(op->node, 0);
+	if (i2c->irq != NO_IRQ) { /* i2c->irq = NO_IRQ implies polling */
+		result = request_irq(i2c->irq, mpc_i2c_isr,
+				     IRQF_SHARED, "i2c-mpc", i2c);
+		if (result < 0) {
+			printk(KERN_ERR "i2c-mpc - failed to attach interrupt\n");
+			goto fail_request;
 		}
-
+	}
+	
 	mpc_i2c_setclock(i2c);
-	platform_set_drvdata(pdev, i2c);
+
+	dev_set_drvdata(&op->dev, i2c);
 
 	i2c->adap = mpc_ops;
-	i2c->adap.nr = pdev->id;
 	i2c_set_adapdata(&i2c->adap, i2c);
-	i2c->adap.dev.parent = &pdev->dev;
-	if ((result = i2c_add_numbered_adapter(&i2c->adap)) < 0) {
+	i2c->adap.dev.parent = &op->dev;
+
+	result = i2c_add_adapter(&i2c->adap);
+	if (result < 0) {
 		printk(KERN_ERR "i2c-mpc - failed to add adapter\n");
 		goto fail_add;
 	}
+	of_register_i2c_devices(&i2c->adap, op->node);
 
 	return result;
 
-      fail_add:
-	if (i2c->irq != NO_IRQ)
-		free_irq(i2c->irq, i2c);
-      fail_irq:
-	iounmap(i2c->base);
-      fail_map:
+ fail_add:
+	dev_set_drvdata(&op->dev, NULL);
+	free_irq(i2c->irq, i2c);
+ fail_request:
+	irq_dispose_mapping(i2c->irq);
+ 	iounmap(i2c->base);
+ fail_map:
 	kfree(i2c);
 	return result;
 };
 
-static int fsl_i2c_remove(struct platform_device *pdev)
+static int __devexit fsl_i2c_remove(struct of_device *op)
 {
-	struct mpc_i2c *i2c = platform_get_drvdata(pdev);
+	struct mpc_i2c *i2c = dev_get_drvdata(&op->dev);
 
 	i2c_del_adapter(&i2c->adap);
-	platform_set_drvdata(pdev, NULL);
+	dev_set_drvdata(&op->dev, NULL);
 
 	if (i2c->irq != NO_IRQ)
 		free_irq(i2c->irq, i2c);
 
+	irq_dispose_mapping(i2c->irq);
 	iounmap(i2c->base);
 	kfree(i2c);
 	return 0;
 };
 
-/* work with hotplug and coldplug */
-MODULE_ALIAS("platform:fsl-i2c");
+static const struct of_device_id mpc_i2c_of_match[] = {
+	{.compatible = "fsl-i2c",},
+	{},
+};
+MODULE_DEVICE_TABLE(of, mpc_i2c_of_match);
+
 
 /* Structure for a device driver */
-static struct platform_driver fsl_i2c_driver = {
-	.probe = fsl_i2c_probe,
-	.remove = fsl_i2c_remove,
-	.driver	= {
-		.owner = THIS_MODULE,
-		.name = "fsl-i2c",
+static struct of_platform_driver mpc_i2c_driver = {
+	.match_table	= mpc_i2c_of_match,
+	.probe		= fsl_i2c_probe,
+	.remove		= __devexit_p(fsl_i2c_remove),
+	.driver		= {
+		.owner	= THIS_MODULE,
+		.name	= DRV_NAME,
 	},
 };
 
 static int __init fsl_i2c_init(void)
 {
-	return platform_driver_register(&fsl_i2c_driver);
+	int rv;
+
+	rv = of_register_platform_driver(&mpc_i2c_driver);
+	if (rv)
+		printk(KERN_ERR DRV_NAME 
+		       " of_register_platform_driver failed (%i)\n", rv);
+	return rv;
 }
 
 static void __exit fsl_i2c_exit(void)
 {
-	platform_driver_unregister(&fsl_i2c_driver);
+	of_unregister_platform_driver(&mpc_i2c_driver);
 }
 
 module_init(fsl_i2c_init);

drivers/of/of_i2c.c

@@ -13,6 +13,7 @@
 
 #include <linux/i2c.h>
 #include <linux/of.h>
+#include <linux/of_i2c.h>
 #include <linux/module.h>
 
 struct i2c_driver_device {

drivers/spi/mpc52xx_psc_spi.c

@@ -17,7 +17,7 @@
 #include <linux/interrupt.h>
 
 #if defined(CONFIG_PPC_MERGE)
-#include <asm/of_platform.h>
+#include <linux/of_platform.h>
 #else
 #include <linux/platform_device.h>
 #endif

drivers/watchdog/mpc5200_wdt.c

@@ -4,7 +4,7 @@
 #include <linux/watchdog.h>
 #include <linux/io.h>
 #include <linux/spinlock.h>
-#include <asm/of_platform.h>
+#include <linux/of_platform.h>
 #include <asm/uaccess.h>
 #include <asm/mpc52xx.h>