Merge tag 'exynos-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/cleanup3

Merge "Exynos cleanup for v3.15" from Kukjin Kim:

- reorganize code for
- add support reserve memory for mfc-v7
- consolidate exynos4 and exynos5 machine codes
- add generic compatible strings for exynos4 and exynos5
- update DT with generic compatible strings
- move clk related dt-binding header file in dt-bindings/clock

* tag 'exynos-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  dt-bindings: clock: Move exynos-audss-clk.h to dt-bindings/clock
  ARM: dts: Update Exynos DT files with generic compatible strings
  ARM: EXYNOS: Add generic compatible strings
  ARM: EXYNOS: Consolidate exynos4 and exynos5 machine files
  ARM: EXYNOS: Consolidate CPU init code
  ARM: SAMSUNG: Introduce generic Exynos4 and 5 helpers
  ARM: EXYNOS: Add support to reserve memory for MFC-v7
  ARM: SAMSUNG: Reorganize calls to reserve memory for MFC

Conflicts:
	arch/arm/mach-exynos/exynos.c

Signed-off-by; Arnd Bergmann <arnd@arndb.de>

32 files changed, 165 insertions, 302 deletions

diff --git a/arch/arm/boot/dts/exynos4210-origen.dts b/arch/arm/boot/dts/exynos4210-origen.dts
index 2aa13cb3bbed..72fb11f7ea21 100644
--- a/arch/arm/boot/dts/exynos4210-origen.dts
+++ b/arch/arm/boot/dts/exynos4210-origen.dts
@@ -19,7 +19,7 @@
 
 / {
 	model = "Insignal Origen evaluation board based on Exynos4210";
-	compatible = "insignal,origen", "samsung,exynos4210";
+	compatible = "insignal,origen", "samsung,exynos4210", "samsung,exynos4";
 
 	memory {
 		reg = <0x40000000 0x10000000
diff --git a/arch/arm/boot/dts/exynos4210-smdkv310.dts b/arch/arm/boot/dts/exynos4210-smdkv310.dts
index 9c01b718d29d..636d16684750 100644
--- a/arch/arm/boot/dts/exynos4210-smdkv310.dts
+++ b/arch/arm/boot/dts/exynos4210-smdkv310.dts
@@ -19,7 +19,7 @@
 
 / {
 	model = "Samsung smdkv310 evaluation board based on Exynos4210";
-	compatible = "samsung,smdkv310", "samsung,exynos4210";
+	compatible = "samsung,smdkv310", "samsung,exynos4210", "samsung,exynos4";
 
 	memory {
 		reg = <0x40000000 0x80000000>;
diff --git a/arch/arm/boot/dts/exynos4210-trats.dts b/arch/arm/boot/dts/exynos4210-trats.dts
index 63cc571ca307..361cb58052bf 100644
--- a/arch/arm/boot/dts/exynos4210-trats.dts
+++ b/arch/arm/boot/dts/exynos4210-trats.dts
@@ -17,7 +17,7 @@
 
 / {
 	model = "Samsung Trats based on Exynos4210";
-	compatible = "samsung,trats", "samsung,exynos4210";
+	compatible = "samsung,trats", "samsung,exynos4210", "samsung,exynos4";
 
 	memory {
 		reg =  <0x40000000 0x10000000
diff --git a/arch/arm/boot/dts/exynos4210-universal_c210.dts b/arch/arm/boot/dts/exynos4210-universal_c210.dts
index d2e3f5f5916d..27d3b70ee9e3 100644
--- a/arch/arm/boot/dts/exynos4210-universal_c210.dts
+++ b/arch/arm/boot/dts/exynos4210-universal_c210.dts
@@ -17,7 +17,7 @@
 
 / {
 	model = "Samsung Universal C210 based on Exynos4210 rev0";
-	compatible = "samsung,universal_c210", "samsung,exynos4210";
+	compatible = "samsung,universal_c210", "samsung,exynos4210", "samsung,exynos4";
 
 	memory {
 		reg =  <0x40000000 0x10000000
diff --git a/arch/arm/boot/dts/exynos4210.dtsi b/arch/arm/boot/dts/exynos4210.dtsi
index cb0e768dc6d4..cacf6140dd2f 100644
--- a/arch/arm/boot/dts/exynos4210.dtsi
+++ b/arch/arm/boot/dts/exynos4210.dtsi
@@ -23,7 +23,7 @@
 #include "exynos4210-pinctrl.dtsi"
 
 / {
-	compatible = "samsung,exynos4210";
+	compatible = "samsung,exynos4210", "samsung,exynos4";
 
 	aliases {
 		pinctrl0 = &pinctrl_0;
diff --git a/arch/arm/boot/dts/exynos4212.dtsi b/arch/arm/boot/dts/exynos4212.dtsi
index ceefc711793c..3c00e6ec9302 100644
--- a/arch/arm/boot/dts/exynos4212.dtsi
+++ b/arch/arm/boot/dts/exynos4212.dtsi
@@ -20,7 +20,7 @@
 #include "exynos4x12.dtsi"
 
 / {
-	compatible = "samsung,exynos4212";
+	compatible = "samsung,exynos4212", "samsung,exynos4";
 
 	combiner: interrupt-controller@10440000 {
 		samsung,combiner-nr = <18>;
diff --git a/arch/arm/boot/dts/exynos4412-odroidx.dts b/arch/arm/boot/dts/exynos4412-odroidx.dts
index 12459b01cca3..31db28a4bb33 100644
--- a/arch/arm/boot/dts/exynos4412-odroidx.dts
+++ b/arch/arm/boot/dts/exynos4412-odroidx.dts
@@ -16,7 +16,7 @@
 
 / {
 	model = "Hardkernel ODROID-X board based on Exynos4412";
-	compatible = "hardkernel,odroid-x", "samsung,exynos4412";
+	compatible = "hardkernel,odroid-x", "samsung,exynos4412", "samsung,exynos4";
 
 	memory {
 		reg = <0x40000000 0x40000000>;
diff --git a/arch/arm/boot/dts/exynos4412-origen.dts b/arch/arm/boot/dts/exynos4412-origen.dts
index 388f03579661..e2c0dcab4d81 100644
--- a/arch/arm/boot/dts/exynos4412-origen.dts
+++ b/arch/arm/boot/dts/exynos4412-origen.dts
@@ -17,7 +17,7 @@
 
 / {
 	model = "Insignal Origen evaluation board based on Exynos4412";
-	compatible = "insignal,origen4412", "samsung,exynos4412";
+	compatible = "insignal,origen4412", "samsung,exynos4412", "samsung,exynos4";
 
 	memory {
 		reg = <0x40000000 0x40000000>;
diff --git a/arch/arm/boot/dts/exynos4412-smdk4412.dts b/arch/arm/boot/dts/exynos4412-smdk4412.dts
index ad316a1ee9e0..ded0b70f7644 100644
--- a/arch/arm/boot/dts/exynos4412-smdk4412.dts
+++ b/arch/arm/boot/dts/exynos4412-smdk4412.dts
@@ -17,7 +17,7 @@
 
 / {
 	model = "Samsung SMDK evaluation board based on Exynos4412";
-	compatible = "samsung,smdk4412", "samsung,exynos4412";
+	compatible = "samsung,smdk4412", "samsung,exynos4412", "samsung,exynos4";
 
 	memory {
 		reg = <0x40000000 0x40000000>;
diff --git a/arch/arm/boot/dts/exynos4412-tiny4412.dts b/arch/arm/boot/dts/exynos4412-tiny4412.dts
index 0a9831256b33..ea6929d9c621 100644
--- a/arch/arm/boot/dts/exynos4412-tiny4412.dts
+++ b/arch/arm/boot/dts/exynos4412-tiny4412.dts
@@ -16,7 +16,7 @@
 
 / {
 	model = "FriendlyARM TINY4412 board based on Exynos4412";
-	compatible = "friendlyarm,tiny4412", "samsung,exynos4412";
+	compatible = "friendlyarm,tiny4412", "samsung,exynos4412", "samsung,exynos4";
 
 	memory {
 		reg = <0x40000000 0x40000000>;
diff --git a/arch/arm/boot/dts/exynos4412-trats2.dts b/arch/arm/boot/dts/exynos4412-trats2.dts
index 322850640f43..c16b3159b813 100644
--- a/arch/arm/boot/dts/exynos4412-trats2.dts
+++ b/arch/arm/boot/dts/exynos4412-trats2.dts
@@ -17,7 +17,7 @@
 
 / {
 	model = "Samsung Trats 2 based on Exynos4412";
-	compatible = "samsung,trats2", "samsung,exynos4412";
+	compatible = "samsung,trats2", "samsung,exynos4412", "samsung,exynos4";
 
 	aliases {
 		i2c8 = &i2c_ak8975;
diff --git a/arch/arm/boot/dts/exynos4412.dtsi b/arch/arm/boot/dts/exynos4412.dtsi
index a40b6e20e92f..15d3c0ac2f5f 100644
--- a/arch/arm/boot/dts/exynos4412.dtsi
+++ b/arch/arm/boot/dts/exynos4412.dtsi
@@ -20,7 +20,7 @@
 #include "exynos4x12.dtsi"
 
 / {
-	compatible = "samsung,exynos4412";
+	compatible = "samsung,exynos4412", "samsung,exynos4";
 
 	combiner: interrupt-controller@10440000 {
 		samsung,combiner-nr = <20>;
diff --git a/arch/arm/boot/dts/exynos5250-arndale.dts b/arch/arm/boot/dts/exynos5250-arndale.dts
index 9a78d96f8477..e1f5c7a1ab11 100644
--- a/arch/arm/boot/dts/exynos5250-arndale.dts
+++ b/arch/arm/boot/dts/exynos5250-arndale.dts
@@ -15,7 +15,7 @@
 
 / {
 	model = "Insignal Arndale evaluation board based on EXYNOS5250";
-	compatible = "insignal,arndale", "samsung,exynos5250";
+	compatible = "insignal,arndale", "samsung,exynos5250", "samsung,exynos5";
 
 	memory {
 		reg = <0x40000000 0x80000000>;
diff --git a/arch/arm/boot/dts/exynos5250-smdk5250.dts b/arch/arm/boot/dts/exynos5250-smdk5250.dts
index 140de8563e94..a794a705d404 100644
--- a/arch/arm/boot/dts/exynos5250-smdk5250.dts
+++ b/arch/arm/boot/dts/exynos5250-smdk5250.dts
@@ -14,7 +14,7 @@
 
 / {
 	model = "SAMSUNG SMDK5250 board based on EXYNOS5250";
-	compatible = "samsung,smdk5250", "samsung,exynos5250";
+	compatible = "samsung,smdk5250", "samsung,exynos5250", "samsung,exynos5";
 
 	aliases {
 	};
diff --git a/arch/arm/boot/dts/exynos5250-snow.dts b/arch/arm/boot/dts/exynos5250-snow.dts
index b13bf499f5e2..1ce1088a00fb 100644
--- a/arch/arm/boot/dts/exynos5250-snow.dts
+++ b/arch/arm/boot/dts/exynos5250-snow.dts
@@ -14,7 +14,7 @@
 
 / {
 	model = "Google Snow";
-	compatible = "google,snow", "samsung,exynos5250";
+	compatible = "google,snow", "samsung,exynos5250", "samsung,exynos5";
 
 	aliases {
 		i2c104 = &i2c_104;
diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index fdeed7c29ac9..37423314a028 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -21,10 +21,10 @@
 #include "exynos5.dtsi"
 #include "exynos5250-pinctrl.dtsi"
 
-#include <dt-bindings/clk/exynos-audss-clk.h>
+#include <dt-bindings/clock/exynos-audss-clk.h>
 
 / {
-	compatible = "samsung,exynos5250";
+	compatible = "samsung,exynos5250", "samsung,exynos5";
 
 	aliases {
 		spi0 = &spi_0;
diff --git a/arch/arm/boot/dts/exynos5420-arndale-octa.dts b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
index df975b5df881..80a3bf4c5986 100644
--- a/arch/arm/boot/dts/exynos5420-arndale-octa.dts
+++ b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
@@ -16,7 +16,7 @@
 
 / {
 	model = "Insignal Arndale Octa evaluation board based on EXYNOS5420";
-	compatible = "insignal,arndale-octa", "samsung,exynos5420";
+	compatible = "insignal,arndale-octa", "samsung,exynos5420", "samsung,exynos5";
 
 	memory {
 		reg = <0x20000000 0x80000000>;
diff --git a/arch/arm/boot/dts/exynos5420-smdk5420.dts b/arch/arm/boot/dts/exynos5420-smdk5420.dts
index ae1ee0470fca..69104850eb5e 100644
--- a/arch/arm/boot/dts/exynos5420-smdk5420.dts
+++ b/arch/arm/boot/dts/exynos5420-smdk5420.dts
@@ -14,7 +14,7 @@
 
 / {
 	model = "Samsung SMDK5420 board based on EXYNOS5420";
-	compatible = "samsung,smdk5420", "samsung,exynos5420";
+	compatible = "samsung,smdk5420", "samsung,exynos5420", "samsung,exynos5";
 
 	memory {
 		reg = <0x20000000 0x80000000>;
diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi
index 82071154eb84..c3a9a66c5767 100644
--- a/arch/arm/boot/dts/exynos5420.dtsi
+++ b/arch/arm/boot/dts/exynos5420.dtsi
@@ -17,10 +17,10 @@
 #include "exynos5.dtsi"
 #include "exynos5420-pinctrl.dtsi"
 
-#include <dt-bindings/clk/exynos-audss-clk.h>
+#include <dt-bindings/clock/exynos-audss-clk.h>
 
 / {
-	compatible = "samsung,exynos5420";
+	compatible = "samsung,exynos5420", "samsung,exynos5";
 
 	aliases {
 		mshc0 = &mmc_0;
diff --git a/arch/arm/boot/dts/exynos5440-sd5v1.dts b/arch/arm/boot/dts/exynos5440-sd5v1.dts
index 777fb1c2c70f..268609a42b2c 100644
--- a/arch/arm/boot/dts/exynos5440-sd5v1.dts
+++ b/arch/arm/boot/dts/exynos5440-sd5v1.dts
@@ -14,7 +14,7 @@
 
 / {
 	model = "SAMSUNG SD5v1 board based on EXYNOS5440";
-	compatible = "samsung,sd5v1", "samsung,exynos5440";
+	compatible = "samsung,sd5v1", "samsung,exynos5440", "samsung,exynos5";
 
 	chosen {
 		bootargs = "root=/dev/sda2 rw rootwait ignore_loglevel earlyprintk no_console_suspend mem=2048M@0x80000000 mem=6144M@0x100000000 console=ttySAC0,115200";
diff --git a/arch/arm/boot/dts/exynos5440-ssdk5440.dts b/arch/arm/boot/dts/exynos5440-ssdk5440.dts
index d58cb787061a..ff55dac6e219 100644
--- a/arch/arm/boot/dts/exynos5440-ssdk5440.dts
+++ b/arch/arm/boot/dts/exynos5440-ssdk5440.dts
@@ -14,7 +14,7 @@
 
 / {
 	model = "SAMSUNG SSDK5440 board based on EXYNOS5440";
-	compatible = "samsung,ssdk5440", "samsung,exynos5440";
+	compatible = "samsung,ssdk5440", "samsung,exynos5440", "samsung,exynos5";
 
 	chosen {
 		bootargs = "root=/dev/sda2 rw rootwait ignore_loglevel earlyprintk no_console_suspend mem=2048M@0x80000000 mem=6144M@0x100000000 console=ttySAC0,115200";
diff --git a/arch/arm/boot/dts/exynos5440.dtsi b/arch/arm/boot/dts/exynos5440.dtsi
index 75c7b89cec2f..84f77c2fe4d4 100644
--- a/arch/arm/boot/dts/exynos5440.dtsi
+++ b/arch/arm/boot/dts/exynos5440.dtsi
@@ -13,7 +13,7 @@
 #include "skeleton.dtsi"
 
 / {
-	compatible = "samsung,exynos5440";
+	compatible = "samsung,exynos5440", "samsung,exynos5";
 
 	interrupt-parent = <&gic>;
 
diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile
index 58fe9e6f542f..a656dbe3b78c 100644
--- a/arch/arm/mach-exynos/Makefile
+++ b/arch/arm/mach-exynos/Makefile
@@ -12,7 +12,7 @@ obj-				:=
 
 # Core
 
-obj-$(CONFIG_ARCH_EXYNOS)	+= common.o
+obj-$(CONFIG_ARCH_EXYNOS)	+= exynos.o
 
 obj-$(CONFIG_PM_SLEEP)		+= pm.o sleep.o
 obj-$(CONFIG_PM_GENERIC_DOMAINS) += pm_domains.o
@@ -29,8 +29,3 @@ obj-$(CONFIG_ARCH_EXYNOS)	+= firmware.o
 
 plus_sec := $(call as-instr,.arch_extension sec,+sec)
 AFLAGS_exynos-smc.o		:=-Wa,-march=armv7-a$(plus_sec)
-
-# machine support
-
-obj-$(CONFIG_ARCH_EXYNOS4)	+= mach-exynos4-dt.o
-obj-$(CONFIG_ARCH_EXYNOS5)	+= mach-exynos5-dt.o
diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h
index aba6a2ad7d1b..9ef3f83efaff 100644
--- a/arch/arm/mach-exynos/common.h
+++ b/arch/arm/mach-exynos/common.h
@@ -19,8 +19,7 @@ void mct_init(void __iomem *base, int irq_g0, int irq_l0, int irq_l1);
 
 struct map_desc;
 void exynos_init_io(void);
-void exynos4_restart(enum reboot_mode mode, const char *cmd);
-void exynos5_restart(enum reboot_mode mode, const char *cmd);
+void exynos_restart(enum reboot_mode mode, const char *cmd);
 void exynos_cpuidle_init(void);
 void exynos_cpufreq_init(void);
 void exynos_init_late(void);
diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/exynos.c
index e98ddadc5f74..4987ec7711c3 100644
--- a/arch/arm/mach-exynos/common.c
+++ b/arch/arm/mach-exynos/exynos.c
@@ -1,105 +1,40 @@
 /*
- * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
- *		http://www.samsung.com
+ * SAMSUNG EXYNOS Flattened Device Tree enabled machine
  *
- * Common Codes for EXYNOS
+ * Copyright (c) 2010-2014 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.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
  * published by the Free Software Foundation.
  */
 
-#include <linux/kernel.h>
-#include <linux/bitops.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/irqchip.h>
+#include <linux/init.h>
 #include <linux/io.h>
-#include <linux/device.h>
-#include <linux/gpio.h>
-#include <clocksource/samsung_pwm.h>
-#include <linux/sched.h>
-#include <linux/serial_core.h>
+#include <linux/kernel.h>
 #include <linux/serial_s3c.h>
 #include <linux/of.h>
-#include <linux/of_fdt.h>
-#include <linux/of_irq.h>
-#include <linux/pm_domain.h>
-#include <linux/export.h>
-#include <linux/irqdomain.h>
 #include <linux/of_address.h>
-#include <linux/irqchip/arm-gic.h>
-#include <linux/irqchip/chained_irq.h>
+#include <linux/of_fdt.h>
+#include <linux/of_platform.h>
 #include <linux/platform_device.h>
+#include <linux/pm_domain.h>
 
-#include <asm/proc-fns.h>
-#include <asm/exception.h>
+#include <asm/cacheflush.h>
 #include <asm/hardware/cache-l2x0.h>
+#include <asm/mach/arch.h>
 #include <asm/mach/map.h>
-#include <asm/mach/irq.h>
-#include <asm/cacheflush.h>
+#include <asm/memory.h>
 
 #include <plat/cpu.h>
-#include <plat/pm.h>
 
 #include "common.h"
+#include "mfc.h"
 #include "regs-pmu.h"
 
 #define L2_AUX_VAL 0x7C470001
 #define L2_AUX_MASK 0xC200ffff
 
-static const char name_exynos4210[] = "EXYNOS4210";
-static const char name_exynos4212[] = "EXYNOS4212";
-static const char name_exynos4412[] = "EXYNOS4412";
-static const char name_exynos5250[] = "EXYNOS5250";
-static const char name_exynos5420[] = "EXYNOS5420";
-static const char name_exynos5440[] = "EXYNOS5440";
-
-static void exynos4_map_io(void);
-static void exynos5_map_io(void);
-static int exynos_init(void);
-
-static struct cpu_table cpu_ids[] __initdata = {
-	{
-		.idcode		= EXYNOS4210_CPU_ID,
-		.idmask		= EXYNOS4_CPU_MASK,
-		.map_io		= exynos4_map_io,
-		.init		= exynos_init,
-		.name		= name_exynos4210,
-	}, {
-		.idcode		= EXYNOS4212_CPU_ID,
-		.idmask		= EXYNOS4_CPU_MASK,
-		.map_io		= exynos4_map_io,
-		.init		= exynos_init,
-		.name		= name_exynos4212,
-	}, {
-		.idcode		= EXYNOS4412_CPU_ID,
-		.idmask		= EXYNOS4_CPU_MASK,
-		.map_io		= exynos4_map_io,
-		.init		= exynos_init,
-		.name		= name_exynos4412,
-	}, {
-		.idcode		= EXYNOS5250_SOC_ID,
-		.idmask		= EXYNOS5_SOC_MASK,
-		.map_io		= exynos5_map_io,
-		.init		= exynos_init,
-		.name		= name_exynos5250,
-	}, {
-		.idcode		= EXYNOS5420_SOC_ID,
-		.idmask		= EXYNOS5_SOC_MASK,
-		.map_io		= exynos5_map_io,
-		.init		= exynos_init,
-		.name		= name_exynos5420,
-	}, {
-		.idcode		= EXYNOS5440_SOC_ID,
-		.idmask		= EXYNOS5_SOC_MASK,
-		.init		= exynos_init,
-		.name		= name_exynos5440,
-	},
-};
-
-/* Initial IO mappings */
-
 static struct map_desc exynos4_iodesc[] __initdata = {
 	{
 		.virtual	= (unsigned long)S3C_VA_SYS,
@@ -263,19 +198,11 @@ static struct map_desc exynos5_iodesc[] __initdata = {
 	},
 };
 
-void exynos4_restart(enum reboot_mode mode, const char *cmd)
-{
-	__raw_writel(0x1, S5P_SWRESET);
-}
-
-void exynos5_restart(enum reboot_mode mode, const char *cmd)
+void exynos_restart(enum reboot_mode mode, const char *cmd)
 {
 	struct device_node *np;
-	u32 val;
-	void __iomem *addr;
-
-	val = 0x1;
-	addr = EXYNOS_SWRESET;
+	u32 val = 0x1;
+	void __iomem *addr = EXYNOS_SWRESET;
 
 	if (of_machine_is_compatible("samsung,exynos5440")) {
 		u32 status;
@@ -346,6 +273,28 @@ static int __init exynos_fdt_map_chipid(unsigned long node, const char *uname,
  *
  * register the standard cpu IO areas
  */
+static void __init exynos_map_io(void)
+{
+	if (soc_is_exynos4())
+		iotable_init(exynos4_iodesc, ARRAY_SIZE(exynos4_iodesc));
+
+	if (soc_is_exynos5())
+		iotable_init(exynos5_iodesc, ARRAY_SIZE(exynos5_iodesc));
+
+	if (soc_is_exynos4210()) {
+		if (samsung_rev() == EXYNOS4210_REV_0)
+			iotable_init(exynos4_iodesc0,
+						ARRAY_SIZE(exynos4_iodesc0));
+		else
+			iotable_init(exynos4_iodesc1,
+						ARRAY_SIZE(exynos4_iodesc1));
+		iotable_init(exynos4210_iodesc, ARRAY_SIZE(exynos4210_iodesc));
+	}
+	if (soc_is_exynos4212() || soc_is_exynos4412())
+		iotable_init(exynos4x12_iodesc, ARRAY_SIZE(exynos4x12_iodesc));
+	if (soc_is_exynos5250())
+		iotable_init(exynos5250_iodesc, ARRAY_SIZE(exynos5250_iodesc));
+}
 
 void __init exynos_init_io(void)
 {
@@ -356,30 +305,7 @@ void __init exynos_init_io(void)
 	/* detect cpu id and rev. */
 	s5p_init_cpu(S5P_VA_CHIPID);
 
-	s3c_init_cpu(samsung_cpu_id, cpu_ids, ARRAY_SIZE(cpu_ids));
-}
-
-static void __init exynos4_map_io(void)
-{
-	iotable_init(exynos4_iodesc, ARRAY_SIZE(exynos4_iodesc));
-
-	if (soc_is_exynos4210() && samsung_rev() == EXYNOS4210_REV_0)
-		iotable_init(exynos4_iodesc0, ARRAY_SIZE(exynos4_iodesc0));
-	else
-		iotable_init(exynos4_iodesc1, ARRAY_SIZE(exynos4_iodesc1));
-
-	if (soc_is_exynos4210())
-		iotable_init(exynos4210_iodesc, ARRAY_SIZE(exynos4210_iodesc));
-	if (soc_is_exynos4212() || soc_is_exynos4412())
-		iotable_init(exynos4x12_iodesc, ARRAY_SIZE(exynos4x12_iodesc));
-}
-
-static void __init exynos5_map_io(void)
-{
-	iotable_init(exynos5_iodesc, ARRAY_SIZE(exynos5_iodesc));
-
-	if (soc_is_exynos5250())
-		iotable_init(exynos5250_iodesc, ARRAY_SIZE(exynos5250_iodesc));
+	exynos_map_io();
 }
 
 struct bus_type exynos_subsys = {
@@ -387,10 +313,6 @@ struct bus_type exynos_subsys = {
 	.dev_name	= "exynos-core",
 };
 
-static struct device exynos4_dev = {
-	.bus	= &exynos_subsys,
-};
-
 static int __init exynos_core_init(void)
 {
 	return subsys_system_register(&exynos_subsys, NULL);
@@ -411,9 +333,77 @@ static int __init exynos4_l2x0_cache_init(void)
 }
 early_initcall(exynos4_l2x0_cache_init);
 
-static int __init exynos_init(void)
+static void __init exynos_dt_machine_init(void)
 {
-	printk(KERN_INFO "EXYNOS: Initializing architecture\n");
+	struct device_node *i2c_np;
+	const char *i2c_compat = "samsung,s3c2440-i2c";
+	unsigned int tmp;
+	int id;
+
+	/*
+	 * Exynos5's legacy i2c controller and new high speed i2c
+	 * controller have muxed interrupt sources. By default the
+	 * interrupts for 4-channel HS-I2C controller are enabled.
+	 * If node for first four channels of legacy i2c controller
+	 * are available then re-configure the interrupts via the
+	 * system register.
+	 */
+	if (soc_is_exynos5()) {
+		for_each_compatible_node(i2c_np, NULL, i2c_compat) {
+			if (of_device_is_available(i2c_np)) {
+				id = of_alias_get_id(i2c_np, "i2c");
+				if (id < 4) {
+					tmp = readl(EXYNOS5_SYS_I2C_CFG);
+					writel(tmp & ~(0x1 << id),
+							EXYNOS5_SYS_I2C_CFG);
+				}
+			}
+		}
+	}
 
-	return device_register(&exynos4_dev);
+	exynos_cpuidle_init();
+	exynos_cpufreq_init();
+
+	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 }
+
+static char const *exynos_dt_compat[] __initconst = {
+	"samsung,exynos4",
+	"samsung,exynos4210",
+	"samsung,exynos4212",
+	"samsung,exynos4412",
+	"samsung,exynos5",
+	"samsung,exynos5250",
+	"samsung,exynos5420",
+	"samsung,exynos5440",
+	NULL
+};
+
+static void __init exynos_reserve(void)
+{
+#ifdef CONFIG_S5P_DEV_MFC
+	int i;
+	char *mfc_mem[] = {
+		"samsung,mfc-v5",
+		"samsung,mfc-v6",
+		"samsung,mfc-v7",
+	};
+
+	for (i = 0; i < ARRAY_SIZE(mfc_mem); i++)
+		if (of_scan_flat_dt(s5p_fdt_alloc_mfc_mem, mfc_mem[i]))
+			break;
+#endif
+}
+
+DT_MACHINE_START(EXYNOS_DT, "SAMSUNG EXYNOS (Flattened Device Tree)")
+	/* Maintainer: Thomas Abraham <thomas.abraham@linaro.org> */
+	/* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
+	.smp		= smp_ops(exynos_smp_ops),
+	.map_io		= exynos_init_io,
+	.init_early	= exynos_firmware_init,
+	.init_machine	= exynos_dt_machine_init,
+	.init_late	= exynos_init_late,
+	.dt_compat	= exynos_dt_compat,
+	.restart	= exynos_restart,
+	.reserve	= exynos_reserve,
+MACHINE_END
diff --git a/arch/arm/mach-exynos/mach-exynos4-dt.c b/arch/arm/mach-exynos/mach-exynos4-dt.c
deleted file mode 100644
index d3e54b7644d7..000000000000
--- a/arch/arm/mach-exynos/mach-exynos4-dt.c
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Samsung's EXYNOS4 flattened device tree enabled machine
- *
- * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
- *		http://www.samsung.com
- * Copyright (c) 2010-2011 Linaro Ltd.
- *		www.linaro.org
- *
- * 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/of_platform.h>
-#include <linux/of_fdt.h>
-
-#include <asm/mach/arch.h>
-#include <plat/mfc.h>
-
-#include "common.h"
-
-static void __init exynos4_dt_machine_init(void)
-{
-	exynos_cpuidle_init();
-	exynos_cpufreq_init();
-
-	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
-}
-
-static char const *exynos4_dt_compat[] __initdata = {
-	"samsung,exynos4210",
-	"samsung,exynos4212",
-	"samsung,exynos4412",
-	NULL
-};
-
-static void __init exynos4_reserve(void)
-{
-#ifdef CONFIG_S5P_DEV_MFC
-	struct s5p_mfc_dt_meminfo mfc_mem;
-
-	/* Reserve memory for MFC only if it's available */
-	mfc_mem.compatible = "samsung,mfc-v5";
-	if (of_scan_flat_dt(s5p_fdt_find_mfc_mem, &mfc_mem))
-		s5p_mfc_reserve_mem(mfc_mem.roff, mfc_mem.rsize, mfc_mem.loff,
-				mfc_mem.lsize);
-#endif
-}
-DT_MACHINE_START(EXYNOS4210_DT, "Samsung Exynos4 (Flattened Device Tree)")
-	/* Maintainer: Thomas Abraham <thomas.abraham@linaro.org> */
-	.smp		= smp_ops(exynos_smp_ops),
-	.map_io		= exynos_init_io,
-	.init_early	= exynos_firmware_init,
-	.init_machine	= exynos4_dt_machine_init,
-	.init_late	= exynos_init_late,
-	.dt_compat	= exynos4_dt_compat,
-	.restart        = exynos4_restart,
-	.reserve	= exynos4_reserve,
-MACHINE_END
diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
deleted file mode 100644
index 37ea261f0f6c..000000000000
--- a/arch/arm/mach-exynos/mach-exynos5-dt.c
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * SAMSUNG EXYNOS5250 Flattened Device Tree enabled machine
- *
- * Copyright (c) 2012 Samsung Electronics Co., Ltd.
- *		http://www.samsung.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
- * published by the Free Software Foundation.
-*/
-
-#include <linux/of_platform.h>
-#include <linux/of_fdt.h>
-#include <linux/io.h>
-
-#include <asm/mach/arch.h>
-#include <plat/mfc.h>
-
-#include "common.h"
-#include "regs-pmu.h"
-
-static void __init exynos5_dt_machine_init(void)
-{
-	struct device_node *i2c_np;
-	const char *i2c_compat = "samsung,s3c2440-i2c";
-	unsigned int tmp;
-
-	/*
-	 * Exynos5's legacy i2c controller and new high speed i2c
-	 * controller have muxed interrupt sources. By default the
-	 * interrupts for 4-channel HS-I2C controller are enabled.
-	 * If node for first four channels of legacy i2c controller
-	 * are available then re-configure the interrupts via the
-	 * system register.
-	 */
-	for_each_compatible_node(i2c_np, NULL, i2c_compat) {
-		if (of_device_is_available(i2c_np)) {
-			if (of_alias_get_id(i2c_np, "i2c") < 4) {
-				tmp = readl(EXYNOS5_SYS_I2C_CFG);
-				writel(tmp & ~(0x1 << of_alias_get_id(i2c_np, "i2c")),
-						EXYNOS5_SYS_I2C_CFG);
-			}
-		}
-	}
-
-	exynos_cpuidle_init();
-	exynos_cpufreq_init();
-
-	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
-}
-
-static char const *exynos5_dt_compat[] __initdata = {
-	"samsung,exynos5250",
-	"samsung,exynos5420",
-	"samsung,exynos5440",
-	NULL
-};
-
-static void __init exynos5_reserve(void)
-{
-#ifdef CONFIG_S5P_DEV_MFC
-	struct s5p_mfc_dt_meminfo mfc_mem;
-
-	/* Reserve memory for MFC only if it's available */
-	mfc_mem.compatible = "samsung,mfc-v6";
-	if (of_scan_flat_dt(s5p_fdt_find_mfc_mem, &mfc_mem))
-		s5p_mfc_reserve_mem(mfc_mem.roff, mfc_mem.rsize, mfc_mem.loff,
-				mfc_mem.lsize);
-#endif
-}
-
-DT_MACHINE_START(EXYNOS5_DT, "SAMSUNG EXYNOS5 (Flattened Device Tree)")
-	/* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
-	.smp		= smp_ops(exynos_smp_ops),
-	.map_io		= exynos_init_io,
-	.init_machine	= exynos5_dt_machine_init,
-	.init_late	= exynos_init_late,
-	.dt_compat	= exynos5_dt_compat,
-	.restart        = exynos5_restart,
-	.reserve	= exynos5_reserve,
-MACHINE_END
diff --git a/arch/arm/mach-exynos/mfc.h b/arch/arm/mach-exynos/mfc.h
new file mode 100644
index 000000000000..dec93cd5b3c6
--- /dev/null
+++ b/arch/arm/mach-exynos/mfc.h
@@ -0,0 +1,16 @@
+/*
+ * Copyright (C) 2013 Samsung Electronics Co.Ltd
+ *
+ * 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.
+ */
+
+#ifndef __MACH_EXYNOS_MFC_H
+#define __MACH_EXYNOS_MFC_H __FILE__
+
+int __init s5p_fdt_alloc_mfc_mem(unsigned long node, const char *uname,
+				int depth, void *data);
+
+#endif /* __MACH_EXYNOS_MFC_H */
diff --git a/arch/arm/mach-exynos/regs-pmu.h b/arch/arm/mach-exynos/regs-pmu.h
index 2c15a8fbcb5a..4f6a2560d022 100644
--- a/arch/arm/mach-exynos/regs-pmu.h
+++ b/arch/arm/mach-exynos/regs-pmu.h
@@ -26,7 +26,6 @@
 #define S5P_USE_STANDBY_WFI0			(1 << 16)
 #define S5P_USE_STANDBY_WFE0			(1 << 24)
 
-#define S5P_SWRESET				S5P_PMUREG(0x0400)
 #define EXYNOS_SWRESET				S5P_PMUREG(0x0400)
 #define EXYNOS5440_SWRESET			S5P_PMUREG(0x00C4)
 
diff --git a/arch/arm/plat-samsung/include/plat/cpu.h b/arch/arm/plat-samsung/include/plat/cpu.h
index d762533b856f..5992b8dd9b89 100644
--- a/arch/arm/plat-samsung/include/plat/cpu.h
+++ b/arch/arm/plat-samsung/include/plat/cpu.h
@@ -166,6 +166,10 @@ IS_SAMSUNG_CPU(exynos5440, EXYNOS5440_SOC_ID, EXYNOS5_SOC_MASK)
 # define soc_is_exynos5440()	0
 #endif
 
+#define soc_is_exynos4() (soc_is_exynos4210() || soc_is_exynos4212() || \
+			  soc_is_exynos4412())
+#define soc_is_exynos5() (soc_is_exynos5250() || soc_is_exynos5420())
+
 #define IODESC_ENT(x) { (unsigned long)S3C24XX_VA_##x, __phys_to_pfn(S3C24XX_PA_##x), S3C24XX_SZ_##x, MT_DEVICE }
 
 #ifndef KHZ
diff --git a/arch/arm/plat-samsung/include/plat/mfc.h b/arch/arm/plat-samsung/include/plat/mfc.h
index e6d7c42d68b6..033654e91e22 100644
--- a/arch/arm/plat-samsung/include/plat/mfc.h
+++ b/arch/arm/plat-samsung/include/plat/mfc.h
@@ -32,7 +32,4 @@ struct s5p_mfc_dt_meminfo {
 void __init s5p_mfc_reserve_mem(phys_addr_t rbase, unsigned int rsize,
 				phys_addr_t lbase, unsigned int lsize);
 
-int __init s5p_fdt_find_mfc_mem(unsigned long node, const char *uname,
-				int depth, void *data);
-
 #endif /* __PLAT_SAMSUNG_MFC_H */
diff --git a/arch/arm/plat-samsung/s5p-dev-mfc.c b/arch/arm/plat-samsung/s5p-dev-mfc.c
index ad51f85fbd01..98087b655df0 100644
--- a/arch/arm/plat-samsung/s5p-dev-mfc.c
+++ b/arch/arm/plat-samsung/s5p-dev-mfc.c
@@ -122,32 +122,35 @@ device_initcall(s5p_mfc_memory_init);
 #endif
 
 #ifdef CONFIG_OF
-int __init s5p_fdt_find_mfc_mem(unsigned long node, const char *uname,
+int __init s5p_fdt_alloc_mfc_mem(unsigned long node, const char *uname,
 				int depth, void *data)
 {
 	__be32 *prop;
 	unsigned long len;
-	struct s5p_mfc_dt_meminfo *mfc_mem = data;
+	struct s5p_mfc_dt_meminfo mfc_mem;
 
 	if (!data)
 		return 0;
 
-	if (!of_flat_dt_is_compatible(node, mfc_mem->compatible))
+	if (!of_flat_dt_is_compatible(node, data))
 		return 0;
 
 	prop = of_get_flat_dt_prop(node, "samsung,mfc-l", &len);
 	if (!prop || (len != 2 * sizeof(unsigned long)))
 		return 0;
 
-	mfc_mem->loff = be32_to_cpu(prop[0]);
-	mfc_mem->lsize = be32_to_cpu(prop[1]);
+	mfc_mem.loff = be32_to_cpu(prop[0]);
+	mfc_mem.lsize = be32_to_cpu(prop[1]);
 
 	prop = of_get_flat_dt_prop(node, "samsung,mfc-r", &len);
 	if (!prop || (len != 2 * sizeof(unsigned long)))
 		return 0;
 
-	mfc_mem->roff = be32_to_cpu(prop[0]);
-	mfc_mem->rsize = be32_to_cpu(prop[1]);
+	mfc_mem.roff = be32_to_cpu(prop[0]);
+	mfc_mem.rsize = be32_to_cpu(prop[1]);
+
+	s5p_mfc_reserve_mem(mfc_mem.roff, mfc_mem.rsize,
+			mfc_mem.loff, mfc_mem.lsize);
 
 	return 1;
 }