14 files changed, 892 insertions, 0 deletions

diff --git a/arch/arm/plat-s5p/Kconfig b/arch/arm/plat-s5p/Kconfig
new file mode 100644
index 000000000000..d400a6a20fe4
--- /dev/null
+++ b/arch/arm/plat-s5p/Kconfig
@@ -0,0 +1,25 @@
+# arch/arm/plat-s5p/Kconfig
+#
+# Copyright (c) 2009 Samsung Electronics Co., Ltd.
+#		http://www.samsung.com/
+#
+# Licensed under GPLv2
+
+config PLAT_S5P
+	bool
+	depends on (ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PV210)
+	default y
+	select ARM_VIC
+	select NO_IOPORT
+	select ARCH_REQUIRE_GPIOLIB
+	select S3C_GPIO_TRACK
+	select SAMSUNG_GPIOLIB_4BIT
+	select S3C_GPIO_CFG_S3C64XX
+	select S3C_GPIO_PULL_UPDOWN
+	select S3C_GPIO_CFG_S3C24XX
+	select PLAT_SAMSUNG
+	select SAMSUNG_CLKSRC
+	select SAMSUNG_IRQ_VIC_TIMER
+	select SAMSUNG_IRQ_UART
+	help
+	  Base platform code for Samsung's S5P series SoC.
diff --git a/arch/arm/plat-s5p/Makefile b/arch/arm/plat-s5p/Makefile
new file mode 100644
index 000000000000..a7c54b332d27
--- /dev/null
+++ b/arch/arm/plat-s5p/Makefile
@@ -0,0 +1,19 @@
+# arch/arm/plat-s5p/Makefile
+#
+# Copyright (c) 2009 Samsung Electronics Co., Ltd.
+# 		http://www.samsung.com/
+#
+# Licensed under GPLv2
+
+obj-y				:=
+obj-m				:=
+obj-n				:= dummy.o
+obj-				:=
+
+# Core files
+
+obj-y				+= dev-uart.o
+obj-y				+= cpu.o
+obj-y				+= clock.o
+obj-y				+= irq.o
+obj-y				+= setup-i2c0.o
diff --git a/arch/arm/plat-s5p/clock.c b/arch/arm/plat-s5p/clock.c
new file mode 100644
index 000000000000..aa96e335073b
--- /dev/null
+++ b/arch/arm/plat-s5p/clock.c
@@ -0,0 +1,149 @@
+/* linux/arch/arm/plat-s5p/clock.c
+ *
+ * Copyright 2009 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S5P - Common clock 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/init.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/sysdev.h>
+#include <linux/io.h>
+#include <asm/div64.h>
+
+#include <plat/clock.h>
+#include <plat/clock-clksrc.h>
+#include <plat/s5p-clock.h>
+
+/* fin_apll, fin_mpll and fin_epll are all the same clock, which we call
+ * clk_ext_xtal_mux.
+*/
+struct clk clk_ext_xtal_mux = {
+	.name		= "ext_xtal",
+	.id		= -1,
+};
+
+static struct clk s5p_clk_27m = {
+	.name		= "clk_27m",
+	.id		= -1,
+	.rate		= 27000000,
+};
+
+/* 48MHz USB Phy clock output */
+struct clk clk_48m = {
+	.name		= "clk_48m",
+	.id		= -1,
+	.rate		= 48000000,
+};
+
+/* APLL clock output
+ * No need .ctrlbit, this is always on
+*/
+struct clk clk_fout_apll = {
+	.name		= "fout_apll",
+	.id		= -1,
+};
+
+/* MPLL clock output
+ * No need .ctrlbit, this is always on
+*/
+struct clk clk_fout_mpll = {
+	.name		= "fout_mpll",
+	.id		= -1,
+};
+
+/* EPLL clock output */
+struct clk clk_fout_epll = {
+	.name		= "fout_epll",
+	.id		= -1,
+	.ctrlbit	= (1 << 31),
+};
+
+/* ARM clock */
+struct clk clk_arm = {
+	.name		= "armclk",
+	.id		= -1,
+	.rate		= 0,
+	.ctrlbit	= 0,
+};
+
+/* Possible clock sources for APLL Mux */
+static struct clk *clk_src_apll_list[] = {
+	[0] = &clk_fin_apll,
+	[1] = &clk_fout_apll,
+};
+
+struct clksrc_sources clk_src_apll = {
+	.sources	= clk_src_apll_list,
+	.nr_sources	= ARRAY_SIZE(clk_src_apll_list),
+};
+
+/* Possible clock sources for MPLL Mux */
+static struct clk *clk_src_mpll_list[] = {
+	[0] = &clk_fin_mpll,
+	[1] = &clk_fout_mpll,
+};
+
+struct clksrc_sources clk_src_mpll = {
+	.sources	= clk_src_mpll_list,
+	.nr_sources	= ARRAY_SIZE(clk_src_mpll_list),
+};
+
+/* Possible clock sources for EPLL Mux */
+static struct clk *clk_src_epll_list[] = {
+	[0] = &clk_fin_epll,
+	[1] = &clk_fout_epll,
+};
+
+struct clksrc_sources clk_src_epll = {
+	.sources	= clk_src_epll_list,
+	.nr_sources	= ARRAY_SIZE(clk_src_epll_list),
+};
+
+struct clk clk_vpll = {
+	.name		= "vpll",
+	.id		= -1,
+};
+
+int s5p_gatectrl(void __iomem *reg, struct clk *clk, int enable)
+{
+	unsigned int ctrlbit = clk->ctrlbit;
+	u32 con;
+
+	con = __raw_readl(reg);
+	con = enable ? (con | ctrlbit) : (con & ~ctrlbit);
+	__raw_writel(con, reg);
+	return 0;
+}
+
+static struct clk *s5p_clks[] __initdata = {
+	&clk_ext_xtal_mux,
+	&clk_48m,
+	&s5p_clk_27m,
+	&clk_fout_apll,
+	&clk_fout_mpll,
+	&clk_fout_epll,
+	&clk_arm,
+	&clk_vpll,
+};
+
+void __init s5p_register_clocks(unsigned long xtal_freq)
+{
+	int ret;
+
+	clk_ext_xtal_mux.rate = xtal_freq;
+
+	ret = s3c24xx_register_clocks(s5p_clks, ARRAY_SIZE(s5p_clks));
+	if (ret > 0)
+		printk(KERN_ERR "Failed to register s5p clocks\n");
+}
diff --git a/arch/arm/plat-s5p/cpu.c b/arch/arm/plat-s5p/cpu.c
new file mode 100644
index 000000000000..f92e5de3a755
--- /dev/null
+++ b/arch/arm/plat-s5p/cpu.c
@@ -0,0 +1,113 @@
+/* linux/arch/arm/plat-s5p/cpu.c
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S5P 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/init.h>
+#include <linux/module.h>
+#include <mach/map.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <mach/regs-clock.h>
+#include <plat/cpu.h>
+#include <plat/s5p6440.h>
+#include <plat/s5p6442.h>
+#include <plat/s5pv210.h>
+
+/* table of supported CPUs */
+
+static const char name_s5p6440[] = "S5P6440";
+static const char name_s5p6442[] = "S5P6442";
+static const char name_s5pv210[] = "S5PV210/S5PC110";
+
+static struct cpu_table cpu_ids[] __initdata = {
+	{
+		.idcode		= 0x56440100,
+		.idmask		= 0xffffff00,
+		.map_io		= s5p6440_map_io,
+		.init_clocks	= s5p6440_init_clocks,
+		.init_uarts	= s5p6440_init_uarts,
+		.init		= s5p6440_init,
+		.name		= name_s5p6440,
+	}, {
+		.idcode		= 0x36442000,
+		.idmask		= 0xffffff00,
+		.map_io		= s5p6442_map_io,
+		.init_clocks	= s5p6442_init_clocks,
+		.init_uarts	= s5p6442_init_uarts,
+		.init		= s5p6442_init,
+		.name		= name_s5p6442,
+	}, {
+		.idcode		= 0x43110000,
+		.idmask		= 0xfffff000,
+		.map_io		= s5pv210_map_io,
+		.init_clocks	= s5pv210_init_clocks,
+		.init_uarts	= s5pv210_init_uarts,
+		.init		= s5pv210_init,
+		.name		= name_s5pv210,
+	},
+};
+
+/* minimal IO mapping */
+
+static struct map_desc s5p_iodesc[] __initdata = {
+	{
+		.virtual	= (unsigned long)S5P_VA_CHIPID,
+		.pfn		= __phys_to_pfn(S5P_PA_CHIPID),
+		.length		= SZ_4K,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= (unsigned long)S3C_VA_SYS,
+		.pfn		= __phys_to_pfn(S5P_PA_SYSCON),
+		.length		= SZ_64K,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= (unsigned long)S3C_VA_UART,
+		.pfn		= __phys_to_pfn(S3C_PA_UART),
+		.length		= SZ_4K,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= (unsigned long)VA_VIC0,
+		.pfn		= __phys_to_pfn(S5P_PA_VIC0),
+		.length		= SZ_16K,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= (unsigned long)VA_VIC1,
+		.pfn		= __phys_to_pfn(S5P_PA_VIC1),
+		.length		= SZ_16K,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= (unsigned long)S3C_VA_TIMER,
+		.pfn		= __phys_to_pfn(S5P_PA_TIMER),
+		.length		= SZ_16K,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= (unsigned long)S5P_VA_GPIO,
+		.pfn		= __phys_to_pfn(S5P_PA_GPIO),
+		.length		= SZ_4K,
+		.type		= MT_DEVICE,
+	},
+};
+
+/* read cpu identification code */
+
+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));
+}
diff --git a/arch/arm/plat-s5p/dev-uart.c b/arch/arm/plat-s5p/dev-uart.c
new file mode 100644
index 000000000000..a89331ef4ae1
--- /dev/null
+++ b/arch/arm/plat-s5p/dev-uart.c
@@ -0,0 +1,139 @@
+/* linux/arch/arm/plat-s5p/dev-uart.c
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * Base S5P UART resource and device definitions
+ *
+ * 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/types.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/irq.h>
+#include <mach/hardware.h>
+#include <mach/map.h>
+
+#include <plat/devs.h>
+
+ /* Serial port registrations */
+
+static struct resource s5p_uart0_resource[] = {
+	[0] = {
+		.start	= S5P_PA_UART0,
+		.end	= S5P_PA_UART0 + S5P_SZ_UART,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_S5P_UART_RX0,
+		.end	= IRQ_S5P_UART_RX0,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start	= IRQ_S5P_UART_TX0,
+		.end	= IRQ_S5P_UART_TX0,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[3] = {
+		.start	= IRQ_S5P_UART_ERR0,
+		.end	= IRQ_S5P_UART_ERR0,
+		.flags	= IORESOURCE_IRQ,
+	}
+};
+
+static struct resource s5p_uart1_resource[] = {
+	[0] = {
+		.start	= S5P_PA_UART1,
+		.end	= S5P_PA_UART1 + S5P_SZ_UART,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_S5P_UART_RX1,
+		.end	= IRQ_S5P_UART_RX1,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start	= IRQ_S5P_UART_TX1,
+		.end	= IRQ_S5P_UART_TX1,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[3] = {
+		.start	= IRQ_S5P_UART_ERR1,
+		.end	= IRQ_S5P_UART_ERR1,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct resource s5p_uart2_resource[] = {
+	[0] = {
+		.start	= S5P_PA_UART2,
+		.end	= S5P_PA_UART2 + S5P_SZ_UART,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_S5P_UART_RX2,
+		.end	= IRQ_S5P_UART_RX2,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start	= IRQ_S5P_UART_TX2,
+		.end	= IRQ_S5P_UART_TX2,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[3] = {
+		.start	= IRQ_S5P_UART_ERR2,
+		.end	= IRQ_S5P_UART_ERR2,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct resource s5p_uart3_resource[] = {
+#if CONFIG_SERIAL_SAMSUNG_UARTS > 3
+	[0] = {
+		.start	= S5P_PA_UART3,
+		.end	= S5P_PA_UART3 + S5P_SZ_UART,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_S5P_UART_RX3,
+		.end	= IRQ_S5P_UART_RX3,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start	= IRQ_S5P_UART_TX3,
+		.end	= IRQ_S5P_UART_TX3,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[3] = {
+		.start	= IRQ_S5P_UART_ERR3,
+		.end	= IRQ_S5P_UART_ERR3,
+		.flags	= IORESOURCE_IRQ,
+	},
+#endif
+};
+
+struct s3c24xx_uart_resources s5p_uart_resources[] __initdata = {
+	[0] = {
+		.resources	= s5p_uart0_resource,
+		.nr_resources	= ARRAY_SIZE(s5p_uart0_resource),
+	},
+	[1] = {
+		.resources	= s5p_uart1_resource,
+		.nr_resources	= ARRAY_SIZE(s5p_uart1_resource),
+	},
+	[2] = {
+		.resources	= s5p_uart2_resource,
+		.nr_resources	= ARRAY_SIZE(s5p_uart2_resource),
+	},
+	[3] = {
+		.resources	= s5p_uart3_resource,
+		.nr_resources	= ARRAY_SIZE(s5p_uart3_resource),
+	},
+};
diff --git a/arch/arm/plat-s5p/include/plat/irqs.h b/arch/arm/plat-s5p/include/plat/irqs.h
new file mode 100644
index 000000000000..42e757f2e40c
--- /dev/null
+++ b/arch/arm/plat-s5p/include/plat/irqs.h
@@ -0,0 +1,90 @@
+/* linux/arch/arm/plat-s5p/include/plat/irqs.h
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S5P Common IRQ 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.
+*/
+
+#ifndef __ASM_PLAT_S5P_IRQS_H
+#define __ASM_PLAT_S5P_IRQS_H __FILE__
+
+/* we keep the first set of CPU IRQs out of the range of
+ * the ISA space, so that the PC104 has them to itself
+ * and we don't end up having to do horrible things to the
+ * standard ISA drivers....
+ *
+ * note, since we're using the VICs, our start must be a
+ * mulitple of 32 to allow the common code to work
+ */
+
+#define S5P_IRQ_OFFSET		(32)
+
+#define S5P_IRQ(x)		((x) + S5P_IRQ_OFFSET)
+
+#define S5P_VIC0_BASE		S5P_IRQ(0)
+#define S5P_VIC1_BASE		S5P_IRQ(32)
+#define S5P_VIC2_BASE		S5P_IRQ(64)
+#define S5P_VIC3_BASE		S5P_IRQ(96)
+
+#define VIC_BASE(x)		(S5P_VIC0_BASE + ((x)*32))
+
+#define IRQ_VIC0_BASE		S5P_VIC0_BASE
+#define IRQ_VIC1_BASE		S5P_VIC1_BASE
+#define IRQ_VIC2_BASE		S5P_VIC2_BASE
+
+/* UART interrupts, each UART has 4 intterupts per channel so
+ * use the space between the ISA and S3C main interrupts. Note, these
+ * are not in the same order as the S3C24XX series! */
+
+#define IRQ_S5P_UART_BASE0	(16)
+#define IRQ_S5P_UART_BASE1	(20)
+#define IRQ_S5P_UART_BASE2	(24)
+#define IRQ_S5P_UART_BASE3	(28)
+
+#define UART_IRQ_RXD		(0)
+#define UART_IRQ_ERR		(1)
+#define UART_IRQ_TXD		(2)
+
+#define IRQ_S5P_UART_RX0	(IRQ_S5P_UART_BASE0 + UART_IRQ_RXD)
+#define IRQ_S5P_UART_TX0	(IRQ_S5P_UART_BASE0 + UART_IRQ_TXD)
+#define IRQ_S5P_UART_ERR0	(IRQ_S5P_UART_BASE0 + UART_IRQ_ERR)
+
+#define IRQ_S5P_UART_RX1	(IRQ_S5P_UART_BASE1 + UART_IRQ_RXD)
+#define IRQ_S5P_UART_TX1	(IRQ_S5P_UART_BASE1 + UART_IRQ_TXD)
+#define IRQ_S5P_UART_ERR1	(IRQ_S5P_UART_BASE1 + UART_IRQ_ERR)
+
+#define IRQ_S5P_UART_RX2	(IRQ_S5P_UART_BASE2 + UART_IRQ_RXD)
+#define IRQ_S5P_UART_TX2	(IRQ_S5P_UART_BASE2 + UART_IRQ_TXD)
+#define IRQ_S5P_UART_ERR2	(IRQ_S5P_UART_BASE2 + UART_IRQ_ERR)
+
+#define IRQ_S5P_UART_RX3	(IRQ_S5P_UART_BASE3 + UART_IRQ_RXD)
+#define IRQ_S5P_UART_TX3	(IRQ_S5P_UART_BASE3 + UART_IRQ_TXD)
+#define IRQ_S5P_UART_ERR3	(IRQ_S5P_UART_BASE3 + UART_IRQ_ERR)
+
+/* S3C compatibilty defines */
+#define IRQ_S3CUART_RX0		IRQ_S5P_UART_RX0
+#define IRQ_S3CUART_RX1		IRQ_S5P_UART_RX1
+#define IRQ_S3CUART_RX2		IRQ_S5P_UART_RX2
+#define IRQ_S3CUART_RX3		IRQ_S5P_UART_RX3
+
+/* VIC based IRQs */
+
+#define S5P_IRQ_VIC0(x)		(S5P_VIC0_BASE + (x))
+#define S5P_IRQ_VIC1(x)		(S5P_VIC1_BASE + (x))
+#define S5P_IRQ_VIC2(x)		(S5P_VIC2_BASE + (x))
+#define S5P_IRQ_VIC3(x)		(S5P_VIC3_BASE + (x))
+
+#define S5P_TIMER_IRQ(x)	S5P_IRQ(11 + (x))
+
+#define IRQ_TIMER0		S5P_TIMER_IRQ(0)
+#define IRQ_TIMER1		S5P_TIMER_IRQ(1)
+#define IRQ_TIMER2		S5P_TIMER_IRQ(2)
+#define IRQ_TIMER3		S5P_TIMER_IRQ(3)
+#define IRQ_TIMER4		S5P_TIMER_IRQ(4)
+
+#endif /* __ASM_PLAT_S5P_IRQS_H */
diff --git a/arch/arm/plat-s5p/include/plat/map-s5p.h b/arch/arm/plat-s5p/include/plat/map-s5p.h
new file mode 100644
index 000000000000..14828521f70c
--- /dev/null
+++ b/arch/arm/plat-s5p/include/plat/map-s5p.h
@@ -0,0 +1,34 @@
+/* linux/arch/arm/plat-s5p/include/plat/map-s5p.h
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S5P - Memory map definitions
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef __ASM_PLAT_MAP_S5P_H
+#define __ASM_PLAT_MAP_S5P_H __FILE__
+
+#define S5P_VA_CHIPID		S3C_ADDR(0x00700000)
+#define S5P_VA_GPIO		S3C_ADDR(0x00500000)
+#define S5P_VA_SYSTIMER		S3C_ADDR(0x01200000)
+#define S5P_VA_SROMC		S3C_ADDR(0x01100000)
+
+#define S5P_VA_UART0		(S3C_VA_UART + 0x0)
+#define S5P_VA_UART1		(S3C_VA_UART + 0x400)
+#define S5P_VA_UART2		(S3C_VA_UART + 0x800)
+#define S5P_VA_UART3		(S3C_VA_UART + 0xC00)
+
+#define S3C_UART_OFFSET		(0x400)
+
+#define VA_VIC(x)		(S3C_VA_IRQ + ((x) * 0x10000))
+#define VA_VIC0			VA_VIC(0)
+#define VA_VIC1			VA_VIC(1)
+#define VA_VIC2			VA_VIC(2)
+#define VA_VIC3			VA_VIC(3)
+
+#endif /* __ASM_PLAT_MAP_S5P_H */
diff --git a/arch/arm/plat-s5p/include/plat/pll.h b/arch/arm/plat-s5p/include/plat/pll.h
new file mode 100644
index 000000000000..d48325bb29e2
--- /dev/null
+++ b/arch/arm/plat-s5p/include/plat/pll.h
@@ -0,0 +1,83 @@
+/* arch/arm/plat-s5p/include/plat/pll.h
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S5P PLL code
+ *
+ * Based on arch/arm/plat-s3c64xx/include/plat/pll.h
+ *
+ * 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.
+*/
+
+#define PLL45XX_MDIV_MASK	(0x3FF)
+#define PLL45XX_PDIV_MASK	(0x3F)
+#define PLL45XX_SDIV_MASK	(0x7)
+#define PLL45XX_MDIV_SHIFT	(16)
+#define PLL45XX_PDIV_SHIFT	(8)
+#define PLL45XX_SDIV_SHIFT	(0)
+
+#include <asm/div64.h>
+
+enum pll45xx_type_t {
+	pll_4500,
+	pll_4502,
+	pll_4508
+};
+
+static inline unsigned long s5p_get_pll45xx(unsigned long baseclk, u32 pll_con,
+					    enum pll45xx_type_t pll_type)
+{
+	u32 mdiv, pdiv, sdiv;
+	u64 fvco = baseclk;
+
+	mdiv = (pll_con >> PLL45XX_MDIV_SHIFT) & PLL45XX_MDIV_MASK;
+	pdiv = (pll_con >> PLL45XX_PDIV_SHIFT) & PLL45XX_PDIV_MASK;
+	sdiv = (pll_con >> PLL45XX_SDIV_SHIFT) & PLL45XX_SDIV_MASK;
+
+	if (pll_type == pll_4508)
+		sdiv = sdiv - 1;
+
+	fvco *= mdiv;
+	do_div(fvco, (pdiv << sdiv));
+
+	return (unsigned long)fvco;
+}
+
+#define PLL90XX_MDIV_MASK	(0xFF)
+#define PLL90XX_PDIV_MASK	(0x3F)
+#define PLL90XX_SDIV_MASK	(0x7)
+#define PLL90XX_KDIV_MASK	(0xffff)
+#define PLL90XX_MDIV_SHIFT	(16)
+#define PLL90XX_PDIV_SHIFT	(8)
+#define PLL90XX_SDIV_SHIFT	(0)
+#define PLL90XX_KDIV_SHIFT	(0)
+
+static inline unsigned long s5p_get_pll90xx(unsigned long baseclk,
+					    u32 pll_con, u32 pll_conk)
+{
+	unsigned long result;
+	u32 mdiv, pdiv, sdiv, kdiv;
+	u64 tmp;
+
+	mdiv = (pll_con >> PLL90XX_MDIV_SHIFT) & PLL90XX_MDIV_MASK;
+	pdiv = (pll_con >> PLL90XX_PDIV_SHIFT) & PLL90XX_PDIV_MASK;
+	sdiv = (pll_con >> PLL90XX_SDIV_SHIFT) & PLL90XX_SDIV_MASK;
+	kdiv = pll_conk & PLL90XX_KDIV_MASK;
+
+	/* We need to multiple baseclk by mdiv (the integer part) and kdiv
+	 * which is in 2^16ths, so shift mdiv up (does not overflow) and
+	 * add kdiv before multiplying. The use of tmp is to avoid any
+	 * overflows before shifting bac down into result when multipling
+	 * by the mdiv and kdiv pair.
+	 */
+
+	tmp = baseclk;
+	tmp *= (mdiv << 16) + kdiv;
+	do_div(tmp, (pdiv << sdiv));
+	result = tmp >> 16;
+
+	return result;
+}
diff --git a/arch/arm/plat-s5p/include/plat/s5p-clock.h b/arch/arm/plat-s5p/include/plat/s5p-clock.h
new file mode 100644
index 000000000000..56fb8b414d41
--- /dev/null
+++ b/arch/arm/plat-s5p/include/plat/s5p-clock.h
@@ -0,0 +1,40 @@
+/* linux/arch/arm/plat-s5p/include/plat/s5p-clock.h
+ *
+ * Copyright 2009 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * Header file for s5p clock 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.
+*/
+
+#ifndef __ASM_PLAT_S5P_CLOCK_H
+#define __ASM_PLAT_S5P_CLOCK_H __FILE__
+
+#include <linux/clk.h>
+
+#define GET_DIV(clk, field) ((((clk) & field##_MASK) >> field##_SHIFT) + 1)
+
+#define clk_fin_apll clk_ext_xtal_mux
+#define clk_fin_mpll clk_ext_xtal_mux
+#define clk_fin_epll clk_ext_xtal_mux
+#define clk_fin_vpll clk_ext_xtal_mux
+
+extern struct clk clk_ext_xtal_mux;
+extern struct clk clk_48m;
+extern struct clk clk_fout_apll;
+extern struct clk clk_fout_mpll;
+extern struct clk clk_fout_epll;
+extern struct clk clk_arm;
+extern struct clk clk_vpll;
+
+extern struct clksrc_sources clk_src_apll;
+extern struct clksrc_sources clk_src_mpll;
+extern struct clksrc_sources clk_src_epll;
+
+extern int s5p6440_clk48m_ctrl(struct clk *clk, int enable);
+extern int s5p_gatectrl(void __iomem *reg, struct clk *clk, int enable);
+
+#endif /* __ASM_PLAT_S5P_CLOCK_H */
diff --git a/arch/arm/plat-s5p/include/plat/s5p6440.h b/arch/arm/plat-s5p/include/plat/s5p6440.h
new file mode 100644
index 000000000000..a4cd75afeb3b
--- /dev/null
+++ b/arch/arm/plat-s5p/include/plat/s5p6440.h
@@ -0,0 +1,37 @@
+/* arch/arm/plat-s5p/include/plat/s5p6440.h
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * Header file for s5p6440 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.
+*/
+
+ /* Common init code for S5P6440 related SoCs */
+
+extern void s5p6440_common_init_uarts(struct s3c2410_uartcfg *cfg, int no);
+extern void s5p6440_register_clocks(void);
+extern void s5p6440_setup_clocks(void);
+
+#ifdef CONFIG_CPU_S5P6440
+
+extern  int s5p6440_init(void);
+extern void s5p6440_init_irq(void);
+extern void s5p6440_map_io(void);
+extern void s5p6440_init_clocks(int xtal);
+
+#define s5p6440_init_uarts s5p6440_common_init_uarts
+
+#else
+#define s5p6440_init_clocks NULL
+#define s5p6440_init_uarts NULL
+#define s5p6440_map_io NULL
+#define s5p6440_init NULL
+#endif
+
+/* S5P6440 timer */
+
+extern struct sys_timer s5p6440_timer;
diff --git a/arch/arm/plat-s5p/include/plat/s5p6442.h b/arch/arm/plat-s5p/include/plat/s5p6442.h
new file mode 100644
index 000000000000..7b8801349c94
--- /dev/null
+++ b/arch/arm/plat-s5p/include/plat/s5p6442.h
@@ -0,0 +1,33 @@
+/* arch/arm/plat-s5p/include/plat/s5p6442.h
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * Header file for s5p6442 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.
+*/
+
+/* Common init code for S5P6442 related SoCs */
+
+extern void s5p6442_common_init_uarts(struct s3c2410_uartcfg *cfg, int no);
+extern void s5p6442_register_clocks(void);
+extern void s5p6442_setup_clocks(void);
+
+#ifdef CONFIG_CPU_S5P6442
+
+extern  int s5p6442_init(void);
+extern void s5p6442_init_irq(void);
+extern void s5p6442_map_io(void);
+extern void s5p6442_init_clocks(int xtal);
+
+#define s5p6442_init_uarts s5p6442_common_init_uarts
+
+#else
+#define s5p6442_init_clocks NULL
+#define s5p6442_init_uarts NULL
+#define s5p6442_map_io NULL
+#define s5p6442_init NULL
+#endif
diff --git a/arch/arm/plat-s5p/include/plat/s5pv210.h b/arch/arm/plat-s5p/include/plat/s5pv210.h
new file mode 100644
index 000000000000..6c93a0c78100
--- /dev/null
+++ b/arch/arm/plat-s5p/include/plat/s5pv210.h
@@ -0,0 +1,33 @@
+/* linux/arch/arm/plat-s5p/include/plat/s5pv210.h
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * Header file for s5pv210 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.
+*/
+
+/* Common init code for S5PV210 related SoCs */
+
+extern void s5pv210_common_init_uarts(struct s3c2410_uartcfg *cfg, int no);
+extern void s5pv210_register_clocks(void);
+extern void s5pv210_setup_clocks(void);
+
+#ifdef CONFIG_CPU_S5PV210
+
+extern  int s5pv210_init(void);
+extern void s5pv210_init_irq(void);
+extern void s5pv210_map_io(void);
+extern void s5pv210_init_clocks(int xtal);
+
+#define s5pv210_init_uarts s5pv210_common_init_uarts
+
+#else
+#define s5pv210_init_clocks NULL
+#define s5pv210_init_uarts NULL
+#define s5pv210_map_io NULL
+#define s5pv210_init NULL
+#endif
diff --git a/arch/arm/plat-s5p/irq.c b/arch/arm/plat-s5p/irq.c
new file mode 100644
index 000000000000..25e1eb6de59e
--- /dev/null
+++ b/arch/arm/plat-s5p/irq.c
@@ -0,0 +1,72 @@
+/* arch/arm/plat-s5p/irq.c
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S5P - Interrupt handling
+ *
+ * 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/interrupt.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+
+#include <asm/hardware/vic.h>
+
+#include <linux/serial_core.h>
+#include <mach/map.h>
+#include <plat/regs-timer.h>
+#include <plat/regs-serial.h>
+#include <plat/cpu.h>
+#include <plat/irq-vic-timer.h>
+#include <plat/irq-uart.h>
+
+/*
+ * Note, we make use of the fact that the parent IRQs, IRQ_UART[0..3]
+ * are consecutive when looking up the interrupt in the demux routines.
+ */
+static struct s3c_uart_irq uart_irqs[] = {
+	[0] = {
+		.regs		= S5P_VA_UART0,
+		.base_irq	= IRQ_S5P_UART_BASE0,
+		.parent_irq	= IRQ_UART0,
+	},
+	[1] = {
+		.regs		= S5P_VA_UART1,
+		.base_irq	= IRQ_S5P_UART_BASE1,
+		.parent_irq	= IRQ_UART1,
+	},
+	[2] = {
+		.regs		= S5P_VA_UART2,
+		.base_irq	= IRQ_S5P_UART_BASE2,
+		.parent_irq	= IRQ_UART2,
+	},
+#if CONFIG_SERIAL_SAMSUNG_UARTS > 3
+	[3] = {
+		.regs		= S5P_VA_UART3,
+		.base_irq	= IRQ_S5P_UART_BASE3,
+		.parent_irq	= IRQ_UART3,
+	},
+#endif
+};
+
+void __init s5p_init_irq(u32 *vic, u32 num_vic)
+{
+	int irq;
+
+	/* initialize the VICs */
+	for (irq = 0; irq < num_vic; irq++)
+		vic_init(VA_VIC(irq), VIC_BASE(irq), vic[irq], 0);
+
+	s3c_init_vic_timer_irq(IRQ_TIMER0_VIC, IRQ_TIMER0);
+	s3c_init_vic_timer_irq(IRQ_TIMER1_VIC, IRQ_TIMER1);
+	s3c_init_vic_timer_irq(IRQ_TIMER2_VIC, IRQ_TIMER2);
+	s3c_init_vic_timer_irq(IRQ_TIMER3_VIC, IRQ_TIMER3);
+	s3c_init_vic_timer_irq(IRQ_TIMER4_VIC, IRQ_TIMER4);
+
+	s3c_init_uart_irqs(uart_irqs, ARRAY_SIZE(uart_irqs));
+}
diff --git a/arch/arm/plat-s5p/setup-i2c0.c b/arch/arm/plat-s5p/setup-i2c0.c
new file mode 100644
index 000000000000..67a66e02a97a
--- /dev/null
+++ b/arch/arm/plat-s5p/setup-i2c0.c
@@ -0,0 +1,25 @@
+/* linux/arch/arm/plat-s5p/setup-i2c0.c
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * I2C0 GPIO configuration.
+ *
+ * Based on plat-s3c64xx/setup-i2c0.c
+ *
+ * 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/types.h>
+
+struct platform_device; /* don't need the contents */
+
+#include <plat/iic.h>
+
+void s3c_i2c0_cfg_gpio(struct platform_device *dev)
+{
+	/* Will be populated later */
+}