13 files changed, 220 insertions, 60 deletions

diff --git a/arch/arm/mach-exynos4/cpu.c b/arch/arm/mach-exynos4/cpu.c
index 746d6fc6d397..0d281bbe345a 100644
--- a/arch/arm/mach-exynos4/cpu.c
+++ b/arch/arm/mach-exynos4/cpu.c
@@ -44,11 +44,6 @@ static struct map_desc exynos4_iodesc[] __initdata = {
                 .length         = SZ_4K,
                 .type           = MT_DEVICE,
         }, {
-                .virtual        = (unsigned long)S5P_VA_SYSRAM,
-                .pfn            = __phys_to_pfn(EXYNOS4_PA_SYSRAM),
-                .length         = SZ_4K,
-                .type           = MT_DEVICE,
-        }, {
                 .virtual        = (unsigned long)S5P_VA_CMU,
                 .pfn            = __phys_to_pfn(EXYNOS4_PA_CMU),
                 .length         = SZ_128K,
@@ -121,6 +116,24 @@ static struct map_desc exynos4_iodesc[] __initdata = {
         },
 };
 
+static struct map_desc exynos4_iodesc0[] __initdata = {
+        {
+                .virtual        = (unsigned long)S5P_VA_SYSRAM,
+                .pfn            = __phys_to_pfn(EXYNOS4_PA_SYSRAM0),
+                .length         = SZ_4K,
+                .type           = MT_DEVICE,
+        },
+};
+
+static struct map_desc exynos4_iodesc1[] __initdata = {
+        {
+                .virtual        = (unsigned long)S5P_VA_SYSRAM,
+                .pfn            = __phys_to_pfn(EXYNOS4_PA_SYSRAM1),
+                .length         = SZ_4K,
+                .type           = MT_DEVICE,
+        },
+};
+
 static void exynos4_idle(void)
 {
         if (!need_resched())
@@ -143,6 +156,11 @@ 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));
+
         /* initialize device information early */
         exynos4_default_sdhci0();
         exynos4_default_sdhci1();
diff --git a/arch/arm/mach-exynos4/include/mach/map.h b/arch/arm/mach-exynos4/include/mach/map.h
index d32296dc65e2..7073ac730855 100644
--- a/arch/arm/mach-exynos4/include/mach/map.h
+++ b/arch/arm/mach-exynos4/include/mach/map.h
@@ -23,7 +23,8 @@
 
 #include <plat/map-s5p.h>
 
-#define EXYNOS4_PA_SYSRAM               0x02020000
+#define EXYNOS4_PA_SYSRAM0              0x02025000
+#define EXYNOS4_PA_SYSRAM1              0x02020000
 
 #define EXYNOS4_PA_FIMC0                0x11800000
 #define EXYNOS4_PA_FIMC1                0x11810000
diff --git a/arch/arm/mach-exynos4/platsmp.c b/arch/arm/mach-exynos4/platsmp.c
index df6ef1b2f98b..a3346e36d0ae 100644
--- a/arch/arm/mach-exynos4/platsmp.c
+++ b/arch/arm/mach-exynos4/platsmp.c
@@ -30,9 +30,12 @@
 #include <mach/regs-clock.h>
 #include <mach/regs-pmu.h>
 
+#include <plat/cpu.h>
+
 extern void exynos4_secondary_startup(void);
 
-#define CPU1_BOOT_REG S5P_VA_SYSRAM
+#define CPU1_BOOT_REG           (samsung_rev() == EXYNOS4210_REV_1_1 ? \
+                                S5P_INFORM5 : S5P_VA_SYSRAM)
 
 /*
  * control for which core is the next to come out of the secondary
@@ -218,5 +221,6 @@ void __init platform_smp_prepare_cpus(unsigned int max_cpus)
          * until it receives a soft interrupt, and then the
          * secondary CPU branches to this address.
          */
-        __raw_writel(BSYM(virt_to_phys(exynos4_secondary_startup)), S5P_VA_SYSRAM);
+        __raw_writel(BSYM(virt_to_phys(exynos4_secondary_startup)),
+                        CPU1_BOOT_REG);
 }
diff --git a/arch/arm/mach-s3c64xx/cpu.c b/arch/arm/mach-s3c64xx/cpu.c
index 374e45e566b8..6c498f9a18c5 100644
--- a/arch/arm/mach-s3c64xx/cpu.c
+++ b/arch/arm/mach-s3c64xx/cpu.c
@@ -43,16 +43,16 @@ static const char name_s3c6410[] = "S3C6410";
 
 static struct cpu_table cpu_ids[] __initdata = {
         {
-                .idcode         = 0x36400000,
-                .idmask         = 0xfffff000,
+                .idcode         = S3C6400_CPU_ID,
+                .idmask         = S3C64XX_CPU_MASK,
                 .map_io         = s3c6400_map_io,
                 .init_clocks    = s3c6400_init_clocks,
                 .init_uarts     = s3c6400_init_uarts,
                 .init           = s3c6400_init,
                 .name           = name_s3c6400,
         }, {
-                .idcode         = 0x36410100,
-                .idmask         = 0xffffff00,
+                .idcode         = S3C6410_CPU_ID,
+                .idmask         = S3C64XX_CPU_MASK,
                 .map_io         = s3c6410_map_io,
                 .init_clocks    = s3c6410_init_clocks,
                 .init_uarts     = s3c6410_init_uarts,
@@ -140,22 +140,14 @@ void __init s3c6400_common_init_uarts(struct s3c2410_uartcfg *cfg, int no)
 
 void __init s3c64xx_init_io(struct map_desc *mach_desc, int size)
 {
-        unsigned long idcode;
-
         /* initialise the io descriptors we need for initialisation */
         iotable_init(s3c_iodesc, ARRAY_SIZE(s3c_iodesc));
         iotable_init(mach_desc, size);
 
-        idcode = __raw_readl(S3C_VA_SYS + 0x118);
-        if (!idcode) {
-                /* S3C6400 has the ID register in a different place,
-                 * and needs a write before it can be read. */
-
-                __raw_writel(0x0, S3C_VA_SYS + 0xA1C);
-                idcode = __raw_readl(S3C_VA_SYS + 0xA1C);
-        }
+        /* detect cpu id */
+        s3c64xx_init_cpu();
 
-        s3c_init_cpu(idcode, cpu_ids, ARRAY_SIZE(cpu_ids));
+        s3c_init_cpu(samsung_cpu_id, cpu_ids, ARRAY_SIZE(cpu_ids));
 }
 
 static __init int s3c64xx_sysdev_init(void)
diff --git a/arch/arm/mach-s5p64x0/dev-spi.c b/arch/arm/mach-s5p64x0/dev-spi.c
index ac825e826326..1fd9c79c7dbc 100644
--- a/arch/arm/mach-s5p64x0/dev-spi.c
+++ b/arch/arm/mach-s5p64x0/dev-spi.c
@@ -21,6 +21,7 @@
 #include <mach/regs-clock.h>
 #include <mach/spi-clocks.h>
 
+#include <plat/cpu.h>
 #include <plat/s3c64xx-spi.h>
 #include <plat/gpio-cfg.h>
 
@@ -185,11 +186,8 @@ struct platform_device s5p64x0_device_spi1 = {
 
 void __init s5p64x0_spi_set_info(int cntrlr, int src_clk_nr, int num_cs)
 {
-        unsigned int id;
         struct s3c64xx_spi_info *pd;
 
-        id = __raw_readl(S5P64X0_SYS_ID) & 0xFF000;
-
         /* Reject invalid configuration */
         if (!num_cs || src_clk_nr < 0
                         || src_clk_nr > S5P64X0_SPI_SRCCLK_SCLK) {
@@ -199,7 +197,7 @@ void __init s5p64x0_spi_set_info(int cntrlr, int src_clk_nr, int num_cs)
 
         switch (cntrlr) {
         case 0:
-                if (id == 0x50000)
+                if (soc_is_s5p6450())
                         pd = &s5p6450_spi0_pdata;
                 else
                         pd = &s5p6440_spi0_pdata;
@@ -207,7 +205,7 @@ void __init s5p64x0_spi_set_info(int cntrlr, int src_clk_nr, int num_cs)
                 s5p64x0_device_spi0.dev.platform_data = pd;
                 break;
         case 1:
-                if (id == 0x50000)
+                if (soc_is_s5p6450())
                         pd = &s5p6450_spi1_pdata;
                 else
                         pd = &s5p6440_spi1_pdata;
diff --git a/arch/arm/mach-s5p64x0/dma.c b/arch/arm/mach-s5p64x0/dma.c
index d7ad944b3475..0e5b3e63e5b3 100644
--- a/arch/arm/mach-s5p64x0/dma.c
+++ b/arch/arm/mach-s5p64x0/dma.c
@@ -28,6 +28,7 @@
 #include <mach/irqs.h>
 #include <mach/regs-clock.h>
 
+#include <plat/cpu.h>
 #include <plat/devs.h>
 #include <plat/s3c-pl330-pdata.h>
 
@@ -133,11 +134,7 @@ static struct platform_device s5p64x0_device_pdma = {
 
 static int __init s5p64x0_dma_init(void)
 {
-        unsigned int id;
-
-        id = __raw_readl(S5P64X0_SYS_ID) & 0xFF000;
-
-        if (id == 0x50000)
+        if (soc_is_s5p6450())
                 s5p64x0_device_pdma.dev.platform_data = &s5p6450_pdma_pdata;
         else
                 s5p64x0_device_pdma.dev.platform_data = &s5p6440_pdma_pdata;
diff --git a/arch/arm/mach-s5p64x0/gpiolib.c b/arch/arm/mach-s5p64x0/gpiolib.c
index e7fb3b004e77..700dac6c43f3 100644
--- a/arch/arm/mach-s5p64x0/gpiolib.c
+++ b/arch/arm/mach-s5p64x0/gpiolib.c
@@ -19,6 +19,7 @@
 #include <mach/regs-gpio.h>
 #include <mach/regs-clock.h>
 
+#include <plat/cpu.h>
 #include <plat/gpio-core.h>
 #include <plat/gpio-cfg.h>
 #include <plat/gpio-cfg-helpers.h>
@@ -473,14 +474,10 @@ static void __init s5p64x0_gpio_add_rbank_4bit2(struct s3c_gpio_chip *chip,
 
 static int __init s5p64x0_gpiolib_init(void)
 {
-        unsigned int chipid;
-
-        chipid = __raw_readl(S5P64X0_SYS_ID);
-
         s5p64x0_gpiolib_set_cfg(s5p64x0_gpio_cfgs,
                                 ARRAY_SIZE(s5p64x0_gpio_cfgs));
 
-        if ((chipid & 0xff000) == 0x50000) {
+        if (soc_is_s5p6450()) {
                 samsung_gpiolib_add_2bit_chips(s5p6450_gpio_2bit,
                                         ARRAY_SIZE(s5p6450_gpio_2bit));
 
diff --git a/arch/arm/mach-s5p64x0/irq-eint.c b/arch/arm/mach-s5p64x0/irq-eint.c
index fe7380f5c3cd..494e1a8f6f6d 100644
--- a/arch/arm/mach-s5p64x0/irq-eint.c
+++ b/arch/arm/mach-s5p64x0/irq-eint.c
@@ -17,6 +17,7 @@
 #include <linux/irq.h>
 #include <linux/io.h>
 
+#include <plat/cpu.h>
 #include <plat/regs-irqtype.h>
 #include <plat/gpio-cfg.h>
 
@@ -67,7 +68,7 @@ static int s5p64x0_irq_eint_set_type(struct irq_data *data, unsigned int type)
         __raw_writel(ctrl, S5P64X0_EINT0CON0);
 
         /* Configure the GPIO pin for 6450 or 6440 based on CPU ID */
-        if (0x50000 == (__raw_readl(S5P64X0_SYS_ID) & 0xFF000))
+        if (soc_is_s5p6450())
                 s3c_gpio_cfgpin(S5P6450_GPN(offs), S3C_GPIO_SFN(2));
         else
                 s3c_gpio_cfgpin(S5P6440_GPN(offs), S3C_GPIO_SFN(2));
diff --git a/arch/arm/plat-s3c24xx/cpu.c b/arch/arm/plat-s3c24xx/cpu.c
index c1fc6c6fac72..3c6335307fb1 100644
--- a/arch/arm/plat-s3c24xx/cpu.c
+++ b/arch/arm/plat-s3c24xx/cpu.c
@@ -215,19 +215,18 @@ static void s3c24xx_pm_restart(char mode, const char *cmd)
 
 void __init s3c24xx_init_io(struct map_desc *mach_desc, int size)
 {
-        unsigned long idcode = 0x0;
-
         /* initialise the io descriptors we need for initialisation */
         iotable_init(mach_desc, size);
         iotable_init(s3c_iodesc, ARRAY_SIZE(s3c_iodesc));
 
         if (cpu_architecture() >= CPU_ARCH_ARMv5) {
-                idcode = s3c24xx_read_idcode_v5();
+                samsung_cpu_id = s3c24xx_read_idcode_v5();
         } else {
-                idcode = s3c24xx_read_idcode_v4();
+                samsung_cpu_id = s3c24xx_read_idcode_v4();
         }
+        s3c24xx_init_cpu();
 
         arm_pm_restart = s3c24xx_pm_restart;
 
-        s3c_init_cpu(idcode, cpu_ids, ARRAY_SIZE(cpu_ids));
+        s3c_init_cpu(samsung_cpu_id, cpu_ids, ARRAY_SIZE(cpu_ids));
 }
diff --git a/arch/arm/plat-s5p/cpu.c b/arch/arm/plat-s5p/cpu.c
index bbc2aa7449ca..04392c70d055 100644
--- a/arch/arm/plat-s5p/cpu.c
+++ b/arch/arm/plat-s5p/cpu.c
@@ -36,40 +36,40 @@ static const char name_exynos4210[] = "EXYNOS4210";
 
 static struct cpu_table cpu_ids[] __initdata = {
         {
-                .idcode         = 0x56440100,
-                .idmask         = 0xfffff000,
+                .idcode         = S5P6440_CPU_ID,
+                .idmask         = S5P64XX_CPU_MASK,
                 .map_io         = s5p6440_map_io,
                 .init_clocks    = s5p6440_init_clocks,
                 .init_uarts     = s5p6440_init_uarts,
                 .init           = s5p64x0_init,
                 .name           = name_s5p6440,
         }, {
-                .idcode         = 0x36450000,
-                .idmask         = 0xfffff000,
+                .idcode         = S5P6450_CPU_ID,
+                .idmask         = S5P64XX_CPU_MASK,
                 .map_io         = s5p6450_map_io,
                 .init_clocks    = s5p6450_init_clocks,
                 .init_uarts     = s5p6450_init_uarts,
                 .init           = s5p64x0_init,
                 .name           = name_s5p6450,
         }, {
-                .idcode         = 0x43100000,
-                .idmask         = 0xfffff000,
+                .idcode         = S5PC100_CPU_ID,
+                .idmask         = S5PC100_CPU_MASK,
                 .map_io         = s5pc100_map_io,
                 .init_clocks    = s5pc100_init_clocks,
                 .init_uarts     = s5pc100_init_uarts,
                 .init           = s5pc100_init,
                 .name           = name_s5pc100,
         }, {
-                .idcode         = 0x43110000,
-                .idmask         = 0xfffff000,
+                .idcode         = S5PV210_CPU_ID,
+                .idmask         = S5PV210_CPU_MASK,
                 .map_io         = s5pv210_map_io,
                 .init_clocks    = s5pv210_init_clocks,
                 .init_uarts     = s5pv210_init_uarts,
                 .init           = s5pv210_init,
                 .name           = name_s5pv210,
         }, {
-                .idcode         = 0x43210000,
-                .idmask         = 0xfffe0000,
+                .idcode         = EXYNOS4210_CPU_ID,
+                .idmask         = EXYNOS4_CPU_MASK,
                 .map_io         = exynos4_map_io,
                 .init_clocks    = exynos4_init_clocks,
                 .init_uarts     = exynos4_init_uarts,
@@ -114,13 +114,13 @@ static struct map_desc s5p_iodesc[] __initdata = {
 void __init s5p_init_io(struct map_desc *mach_desc,
                         int size, void __iomem *cpuid_addr)
 {
-        unsigned long idcode;
-
         /* initialize the io descriptors we need for initialization */
         iotable_init(s5p_iodesc, ARRAY_SIZE(s5p_iodesc));
         if (mach_desc)
                 iotable_init(mach_desc, size);
 
-        idcode = __raw_readl(cpuid_addr);
-        s3c_init_cpu(idcode, cpu_ids, ARRAY_SIZE(cpu_ids));
+        /* detect cpu id and rev. */
+        s5p_init_cpu(cpuid_addr);
+
+        s3c_init_cpu(samsung_cpu_id, cpu_ids, ARRAY_SIZE(cpu_ids));
 }
diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile
index 853764ba8cc5..3de756da5eaa 100644
--- a/arch/arm/plat-samsung/Makefile
+++ b/arch/arm/plat-samsung/Makefile
@@ -11,7 +11,7 @@ obj-				:=
 
 # Objects we always build independent of SoC choice
 
-obj-y                           += init.o
+obj-y                           += init.o cpu.o
 obj-$(CONFIG_ARCH_USES_GETTIMEOFFSET)   += time.o
 obj-y                           += clock.o
 obj-y                           += pwm-clock.o
diff --git a/arch/arm/plat-samsung/cpu.c b/arch/arm/plat-samsung/cpu.c
new file mode 100644
index 000000000000..81c06d44c11e
--- /dev/null
+++ b/arch/arm/plat-samsung/cpu.c
@@ -0,0 +1,58 @@
+/* linux/arch/arm/plat-samsung/cpu.c
+ *
+ * Copyright (c) 2009-2011 Samsung Electronics Co., Ltd.
+ *              http://www.samsung.com
+ *
+ * Samsung CPU Support
+ *
+ * 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/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/io.h>
+
+#include <asm/system.h>
+
+#include <mach/map.h>
+#include <plat/cpu.h>
+
+unsigned long samsung_cpu_id;
+static unsigned int samsung_cpu_rev;
+
+unsigned int samsung_rev(void)
+{
+        return samsung_cpu_rev;
+}
+EXPORT_SYMBOL(samsung_rev);
+
+void __init s3c24xx_init_cpu(void)
+{
+        /* nothing here yet */
+
+        samsung_cpu_rev = 0;
+}
+
+void __init s3c64xx_init_cpu(void)
+{
+        samsung_cpu_id = __raw_readl(S3C_VA_SYS + 0x118);
+        if (!samsung_cpu_id) {
+                /*
+                 * S3C6400 has the ID register in a different place,
+                 * and needs a write before it can be read.
+                 */
+                __raw_writel(0x0, S3C_VA_SYS + 0xA1C);
+                samsung_cpu_id = __raw_readl(S3C_VA_SYS + 0xA1C);
+        }
+
+        samsung_cpu_rev = 0;
+}
+
+void __init s5p_init_cpu(void __iomem *cpuid_addr)
+{
+        samsung_cpu_id = __raw_readl(cpuid_addr);
+        samsung_cpu_rev = samsung_cpu_id & 0xFF;
+}
diff --git a/arch/arm/plat-samsung/include/plat/cpu.h b/arch/arm/plat-samsung/include/plat/cpu.h
index c0a5741b23e6..efd920ec3b75 100644
--- a/arch/arm/plat-samsung/include/plat/cpu.h
+++ b/arch/arm/plat-samsung/include/plat/cpu.h
@@ -1,9 +1,12 @@
 /* linux/arch/arm/plat-samsung/include/plat/cpu.h
  *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ *              http://www.samsung.com/
+ *
  * Copyright (c) 2004-2005 Simtec Electronics
  *      Ben Dooks <ben@simtec.co.uk>
  *
- * Header file for S3C24XX CPU support
+ * Header file for Samsung CPU support
  *
  * 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
@@ -15,6 +18,92 @@
 #ifndef __SAMSUNG_PLAT_CPU_H
 #define __SAMSUNG_PLAT_CPU_H
 
+extern unsigned long samsung_cpu_id;
+
+#define S3C24XX_CPU_ID          0x32400000
+#define S3C24XX_CPU_MASK        0xFFF00000
+
+#define S3C6400_CPU_ID          0x36400000
+#define S3C6410_CPU_ID          0x36410000
+#define S3C64XX_CPU_ID          (S3C6400_CPU_ID & S3C6410_CPU_ID)
+#define S3C64XX_CPU_MASK        0xFFFFF000
+
+#define S5P6440_CPU_ID          0x56440000
+#define S5P6450_CPU_ID          0x36450000
+#define S5P64XX_CPU_MASK        0xFFFFF000
+
+#define S5PC100_CPU_ID          0x43100000
+#define S5PC100_CPU_MASK        0xFFFFF000
+
+#define S5PV210_CPU_ID          0x43110000
+#define S5PV210_CPU_MASK        0xFFFFF000
+
+#define EXYNOS4210_CPU_ID       0x43210000
+#define EXYNOS4_CPU_MASK        0xFFFE0000
+
+#define IS_SAMSUNG_CPU(name, id, mask)          \
+static inline int is_samsung_##name(void)       \
+{                                               \
+        return ((samsung_cpu_id & mask) == (id & mask));        \
+}
+
+IS_SAMSUNG_CPU(s3c24xx, S3C24XX_CPU_ID, S3C24XX_CPU_MASK)
+IS_SAMSUNG_CPU(s3c64xx, S3C64XX_CPU_ID, S3C64XX_CPU_MASK)
+IS_SAMSUNG_CPU(s5p6440, S5P6440_CPU_ID, S5P64XX_CPU_MASK)
+IS_SAMSUNG_CPU(s5p6450, S5P6450_CPU_ID, S5P64XX_CPU_MASK)
+IS_SAMSUNG_CPU(s5pc100, S5PC100_CPU_ID, S5PC100_CPU_MASK)
+IS_SAMSUNG_CPU(s5pv210, S5PV210_CPU_ID, S5PV210_CPU_MASK)
+IS_SAMSUNG_CPU(exynos4210, EXYNOS4210_CPU_ID, EXYNOS4_CPU_MASK)
+
+#if defined(CONFIG_CPU_S3C2410) || defined(CONFIG_CPU_S3C2412) || \
+    defined(CONFIG_CPU_S3C2416) || defined(CONFIG_CPU_S3C2440) || \
+    defined(CONFIG_CPU_S3C2442) || defined(CONFIG_CPU_S3C244X) || \
+    defined(CONFIG_CPU_S3C2443)
+# define soc_is_s3c24xx()       is_samsung_s3c24xx()
+#else
+# define soc_is_s3c24xx()       0
+#endif
+
+#if defined(CONFIG_CPU_S3C6400) || defined(CONFIG_CPU_S3C6410)
+# define soc_is_s3c64xx()       is_samsung_s3c64xx()
+#else
+# define soc_is_s3c64xx()       0
+#endif
+
+#if defined(CONFIG_CPU_S5P6440)
+# define soc_is_s5p6440()       is_samsung_s5p6440()
+#else
+# define soc_is_s5p6440()       0
+#endif
+
+#if defined(CONFIG_CPU_S5P6450)
+# define soc_is_s5p6450()       is_samsung_s5p6450()
+#else
+# define soc_is_s5p6450()       0
+#endif
+
+#if defined(CONFIG_CPU_S5PC100)
+# define soc_is_s5pc100()       is_samsung_s5pc100()
+#else
+# define soc_is_s5pc100()       0
+#endif
+
+#if defined(CONFIG_CPU_S5PV210)
+# define soc_is_s5pv210()       is_samsung_s5pv210()
+#else
+# define soc_is_s5pv210()       0
+#endif
+
+#if defined(CONFIG_CPU_EXYNOS4210)
+# define soc_is_exynos4210()    is_samsung_exynos4210()
+#else
+# define soc_is_exynos4210()    0
+#endif
+
+#define EXYNOS4210_REV_0        (0x0)
+#define EXYNOS4210_REV_1_0      (0x10)
+#define EXYNOS4210_REV_1_1      (0x11)
+
 #define IODESC_ENT(x) { (unsigned long)S3C24XX_VA_##x, __phys_to_pfn(S3C24XX_PA_##x), S3C24XX_SZ_##x, MT_DEVICE }
 
 #ifndef MHZ
@@ -55,6 +144,12 @@ extern void s3c64xx_init_io(struct map_desc *mach_desc, int size);
 extern void s5p_init_io(struct map_desc *mach_desc,
                         int size, void __iomem *cpuid_addr);
 
+extern void s3c24xx_init_cpu(void);
+extern void s3c64xx_init_cpu(void);
+extern void s5p_init_cpu(void __iomem *cpuid_addr);
+
+extern unsigned int samsung_rev(void);
+
 extern void s3c24xx_init_uarts(struct s3c2410_uartcfg *cfg, int no);
 
 extern void s3c24xx_init_clocks(int xtal);