Merge branch 'linus' into sched/core

Merge reason: update to latest upstream

Signed-off-by: Ingo Molnar <mingo@elte.hu>

23 files changed, 1410 insertions, 0 deletions

diff --git a/arch/arm/mach-s5p6442/Kconfig b/arch/arm/mach-s5p6442/Kconfig
new file mode 100644
index 00000000000..4f3f6de6a01
--- /dev/null
+++ b/arch/arm/mach-s5p6442/Kconfig
@@ -0,0 +1,24 @@
+# arch/arm/mach-s5p6442/Kconfig
+#
+# Copyright (c) 2010 Samsung Electronics Co., Ltd.
+#		http://www.samsung.com/
+#
+# Licensed under GPLv2
+
+# Configuration options for the S5P6442
+
+if ARCH_S5P6442
+
+config CPU_S5P6442
+	bool
+	select PLAT_S5P
+	help
+	  Enable S5P6442 CPU support
+
+config MACH_SMDK6442
+	bool "SMDK6442"
+	select CPU_S5P6442
+	help
+	  Machine support for Samsung SMDK6442
+
+endif
diff --git a/arch/arm/mach-s5p6442/Makefile b/arch/arm/mach-s5p6442/Makefile
new file mode 100644
index 00000000000..dde39a6ce6b
--- /dev/null
+++ b/arch/arm/mach-s5p6442/Makefile
@@ -0,0 +1,19 @@
+# arch/arm/mach-s5p6442/Makefile
+#
+# Copyright (c) 2010 Samsung Electronics Co., Ltd.
+# 		http://www.samsung.com/
+#
+# Licensed under GPLv2
+
+obj-y				:=
+obj-m				:=
+obj-n				:=
+obj-				:=
+
+# Core support for S5P6442 system
+
+obj-$(CONFIG_CPU_S5P6442)	+= cpu.o init.o clock.o
+
+# machine support
+
+obj-$(CONFIG_MACH_SMDK6442)	+= mach-smdk6442.o
diff --git a/arch/arm/mach-s5p6442/Makefile.boot b/arch/arm/mach-s5p6442/Makefile.boot
new file mode 100644
index 00000000000..ff90aa13bd6
--- /dev/null
+++ b/arch/arm/mach-s5p6442/Makefile.boot
@@ -0,0 +1,2 @@
+   zreladdr-y	:= 0x20008000
+params_phys-y	:= 0x20000100
diff --git a/arch/arm/mach-s5p6442/clock.c b/arch/arm/mach-s5p6442/clock.c
new file mode 100644
index 00000000000..3aadbf42c11
--- /dev/null
+++ b/arch/arm/mach-s5p6442/clock.c
@@ -0,0 +1,396 @@
+/* linux/arch/arm/mach-s5p6442/clock.c
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S5P6442 - 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/err.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+
+#include <mach/map.h>
+
+#include <plat/cpu-freq.h>
+#include <mach/regs-clock.h>
+#include <plat/clock.h>
+#include <plat/cpu.h>
+#include <plat/pll.h>
+#include <plat/s5p-clock.h>
+#include <plat/clock-clksrc.h>
+#include <plat/s5p6442.h>
+
+static struct clksrc_clk clk_mout_apll = {
+	.clk	= {
+		.name		= "mout_apll",
+		.id		= -1,
+	},
+	.sources	= &clk_src_apll,
+	.reg_src	= { .reg = S5P_CLK_SRC0, .shift = 0, .size = 1 },
+};
+
+static struct clksrc_clk clk_mout_mpll = {
+	.clk = {
+		.name		= "mout_mpll",
+		.id		= -1,
+	},
+	.sources	= &clk_src_mpll,
+	.reg_src	= { .reg = S5P_CLK_SRC0, .shift = 4, .size = 1 },
+};
+
+static struct clksrc_clk clk_mout_epll = {
+	.clk	= {
+		.name		= "mout_epll",
+		.id		= -1,
+	},
+	.sources	= &clk_src_epll,
+	.reg_src	= { .reg = S5P_CLK_SRC0, .shift = 8, .size = 1 },
+};
+
+/* Possible clock sources for ARM Mux */
+static struct clk *clk_src_arm_list[] = {
+	[1] = &clk_mout_apll.clk,
+	[2] = &clk_mout_mpll.clk,
+};
+
+static struct clksrc_sources clk_src_arm = {
+	.sources	= clk_src_arm_list,
+	.nr_sources	= ARRAY_SIZE(clk_src_arm_list),
+};
+
+static struct clksrc_clk clk_mout_arm = {
+	.clk	= {
+		.name		= "mout_arm",
+		.id		= -1,
+	},
+	.sources	= &clk_src_arm,
+	.reg_src	= { .reg = S5P_CLK_MUX_STAT0, .shift = 16, .size = 3 },
+};
+
+static struct clk clk_dout_a2m = {
+	.name		= "dout_a2m",
+	.id		= -1,
+	.parent		= &clk_mout_apll.clk,
+};
+
+/* Possible clock sources for D0 Mux */
+static struct clk *clk_src_d0_list[] = {
+	[1] = &clk_mout_mpll.clk,
+	[2] = &clk_dout_a2m,
+};
+
+static struct clksrc_sources clk_src_d0 = {
+	.sources	= clk_src_d0_list,
+	.nr_sources	= ARRAY_SIZE(clk_src_d0_list),
+};
+
+static struct clksrc_clk clk_mout_d0 = {
+	.clk = {
+		.name		= "mout_d0",
+		.id		= -1,
+	},
+	.sources	= &clk_src_d0,
+	.reg_src	= { .reg = S5P_CLK_MUX_STAT0, .shift = 20, .size = 3 },
+};
+
+static struct clk clk_dout_apll = {
+	.name		= "dout_apll",
+	.id		= -1,
+	.parent		= &clk_mout_arm.clk,
+};
+
+/* Possible clock sources for D0SYNC Mux */
+static struct clk *clk_src_d0sync_list[] = {
+	[1] = &clk_mout_d0.clk,
+	[2] = &clk_dout_apll,
+};
+
+static struct clksrc_sources clk_src_d0sync = {
+	.sources	= clk_src_d0sync_list,
+	.nr_sources	= ARRAY_SIZE(clk_src_d0sync_list),
+};
+
+static struct clksrc_clk clk_mout_d0sync = {
+	.clk	= {
+		.name		= "mout_d0sync",
+		.id		= -1,
+	},
+	.sources	= &clk_src_d0sync,
+	.reg_src	= { .reg = S5P_CLK_MUX_STAT1, .shift = 28, .size = 3 },
+};
+
+/* Possible clock sources for D1 Mux */
+static struct clk *clk_src_d1_list[] = {
+	[1] = &clk_mout_mpll.clk,
+	[2] = &clk_dout_a2m,
+};
+
+static struct clksrc_sources clk_src_d1 = {
+	.sources	= clk_src_d1_list,
+	.nr_sources	= ARRAY_SIZE(clk_src_d1_list),
+};
+
+static struct clksrc_clk clk_mout_d1 = {
+	.clk	= {
+		.name		= "mout_d1",
+		.id		= -1,
+	},
+	.sources	= &clk_src_d1,
+	.reg_src	= { .reg = S5P_CLK_MUX_STAT0, .shift = 24, .size = 3 },
+};
+
+/* Possible clock sources for D1SYNC Mux */
+static struct clk *clk_src_d1sync_list[] = {
+	[1] = &clk_mout_d1.clk,
+	[2] = &clk_dout_apll,
+};
+
+static struct clksrc_sources clk_src_d1sync = {
+	.sources	= clk_src_d1sync_list,
+	.nr_sources	= ARRAY_SIZE(clk_src_d1sync_list),
+};
+
+static struct clksrc_clk clk_mout_d1sync = {
+	.clk	= {
+		.name		= "mout_d1sync",
+		.id		= -1,
+	},
+	.sources	= &clk_src_d1sync,
+	.reg_src	= { .reg = S5P_CLK_MUX_STAT1, .shift = 24, .size = 3 },
+};
+
+static struct clk clk_hclkd0 = {
+	.name		= "hclkd0",
+	.id		= -1,
+	.parent		= &clk_mout_d0sync.clk,
+};
+
+static struct clk clk_hclkd1 = {
+	.name		= "hclkd1",
+	.id		= -1,
+	.parent		= &clk_mout_d1sync.clk,
+};
+
+static struct clk clk_pclkd0 = {
+	.name		= "pclkd0",
+	.id		= -1,
+	.parent		= &clk_hclkd0,
+};
+
+static struct clk clk_pclkd1 = {
+	.name		= "pclkd1",
+	.id		= -1,
+	.parent		= &clk_hclkd1,
+};
+
+int s5p6442_clk_ip3_ctrl(struct clk *clk, int enable)
+{
+	return s5p_gatectrl(S5P_CLKGATE_IP3, clk, enable);
+}
+
+static struct clksrc_clk clksrcs[] = {
+	{
+		.clk	= {
+			.name		= "dout_a2m",
+			.id		= -1,
+			.parent		= &clk_mout_apll.clk,
+		},
+		.sources = &clk_src_apll,
+		.reg_src = { .reg = S5P_CLK_SRC0, .shift = 0, .size = 1 },
+		.reg_div = { .reg = S5P_CLK_DIV0, .shift = 4, .size = 3 },
+	}, {
+		.clk	= {
+			.name		= "dout_apll",
+			.id		= -1,
+			.parent		= &clk_mout_arm.clk,
+		},
+		.sources = &clk_src_arm,
+		.reg_src = { .reg = S5P_CLK_MUX_STAT0, .shift = 16, .size = 3 },
+		.reg_div = { .reg = S5P_CLK_DIV0, .shift = 0, .size = 3 },
+	}, {
+		.clk	= {
+			.name		= "hclkd1",
+			.id		= -1,
+			.parent		= &clk_mout_d1sync.clk,
+		},
+		.sources = &clk_src_d1sync,
+		.reg_src = { .reg = S5P_CLK_MUX_STAT1, .shift = 24, .size = 3 },
+		.reg_div = { .reg = S5P_CLK_DIV0, .shift = 24, .size = 4 },
+	}, {
+		.clk	= {
+			.name		= "hclkd0",
+			.id		= -1,
+			.parent		= &clk_mout_d0sync.clk,
+		},
+		.sources = &clk_src_d0sync,
+		.reg_src = { .reg = S5P_CLK_MUX_STAT1, .shift = 28, .size = 3 },
+		.reg_div = { .reg = S5P_CLK_DIV0, .shift = 16, .size = 4 },
+	}, {
+		.clk	= {
+			.name		= "pclkd0",
+			.id		= -1,
+			.parent		= &clk_hclkd0,
+		},
+		.sources = &clk_src_d0sync,
+		.reg_src = { .reg = S5P_CLK_MUX_STAT1, .shift = 28, .size = 3 },
+		.reg_div = { .reg = S5P_CLK_DIV0, .shift = 20, .size = 3 },
+	}, {
+		.clk	= {
+			.name		= "pclkd1",
+			.id		= -1,
+			.parent		= &clk_hclkd1,
+		},
+		.sources = &clk_src_d1sync,
+		.reg_src = { .reg = S5P_CLK_MUX_STAT1, .shift = 24, .size = 3 },
+		.reg_div = { .reg = S5P_CLK_DIV0, .shift = 28, .size = 3 },
+	}
+};
+
+/* Clock initialisation code */
+static struct clksrc_clk *init_parents[] = {
+	&clk_mout_apll,
+	&clk_mout_mpll,
+	&clk_mout_epll,
+	&clk_mout_arm,
+	&clk_mout_d0,
+	&clk_mout_d0sync,
+	&clk_mout_d1,
+	&clk_mout_d1sync,
+};
+
+void __init_or_cpufreq s5p6442_setup_clocks(void)
+{
+	struct clk *pclkd0_clk;
+	struct clk *pclkd1_clk;
+
+	unsigned long xtal;
+	unsigned long arm;
+	unsigned long hclkd0 = 0;
+	unsigned long hclkd1 = 0;
+	unsigned long pclkd0 = 0;
+	unsigned long pclkd1 = 0;
+
+	unsigned long apll;
+	unsigned long mpll;
+	unsigned long epll;
+	unsigned int ptr;
+
+	printk(KERN_DEBUG "%s: registering clocks\n", __func__);
+
+	xtal = clk_get_rate(&clk_xtal);
+
+	printk(KERN_DEBUG "%s: xtal is %ld\n", __func__, xtal);
+
+	apll = s5p_get_pll45xx(xtal, __raw_readl(S5P_APLL_CON), pll_4508);
+	mpll = s5p_get_pll45xx(xtal, __raw_readl(S5P_MPLL_CON), pll_4502);
+	epll = s5p_get_pll45xx(xtal, __raw_readl(S5P_EPLL_CON), pll_4500);
+
+	printk(KERN_INFO "S5P6440: PLL settings, A=%ld, M=%ld, E=%ld",
+			apll, mpll, epll);
+
+	clk_fout_apll.rate = apll;
+	clk_fout_mpll.rate = mpll;
+	clk_fout_epll.rate = epll;
+
+	for (ptr = 0; ptr < ARRAY_SIZE(init_parents); ptr++)
+		s3c_set_clksrc(init_parents[ptr], true);
+
+	for (ptr = 0; ptr < ARRAY_SIZE(clksrcs); ptr++)
+		s3c_set_clksrc(&clksrcs[ptr], true);
+
+	arm = clk_get_rate(&clk_dout_apll);
+	hclkd0 = clk_get_rate(&clk_hclkd0);
+	hclkd1 = clk_get_rate(&clk_hclkd1);
+
+	pclkd0_clk = clk_get(NULL, "pclkd0");
+	BUG_ON(IS_ERR(pclkd0_clk));
+
+	pclkd0 = clk_get_rate(pclkd0_clk);
+	clk_put(pclkd0_clk);
+
+	pclkd1_clk = clk_get(NULL, "pclkd1");
+	BUG_ON(IS_ERR(pclkd1_clk));
+
+	pclkd1 = clk_get_rate(pclkd1_clk);
+	clk_put(pclkd1_clk);
+
+	printk(KERN_INFO "S5P6442: HCLKD0=%ld, HCLKD1=%ld, PCLKD0=%ld, PCLKD1=%ld\n",
+			hclkd0, hclkd1, pclkd0, pclkd1);
+
+	/* For backward compatibility */
+	clk_f.rate = arm;
+	clk_h.rate = hclkd1;
+	clk_p.rate = pclkd1;
+
+	clk_pclkd0.rate = pclkd0;
+	clk_pclkd1.rate = pclkd1;
+}
+
+static struct clk init_clocks[] = {
+	{
+		.name		= "systimer",
+		.id		= -1,
+		.parent		= &clk_pclkd1,
+		.enable		= s5p6442_clk_ip3_ctrl,
+		.ctrlbit	= (1<<16),
+	}, {
+		.name		= "uart",
+		.id		= 0,
+		.parent		= &clk_pclkd1,
+		.enable		= s5p6442_clk_ip3_ctrl,
+		.ctrlbit	= (1<<17),
+	}, {
+		.name		= "uart",
+		.id		= 1,
+		.parent		= &clk_pclkd1,
+		.enable		= s5p6442_clk_ip3_ctrl,
+		.ctrlbit	= (1<<18),
+	}, {
+		.name		= "uart",
+		.id		= 2,
+		.parent		= &clk_pclkd1,
+		.enable		= s5p6442_clk_ip3_ctrl,
+		.ctrlbit	= (1<<19),
+	}, {
+		.name		= "timers",
+		.id		= -1,
+		.parent		= &clk_pclkd1,
+		.enable		= s5p6442_clk_ip3_ctrl,
+		.ctrlbit	= (1<<23),
+	},
+};
+
+static struct clk *clks[] __initdata = {
+	&clk_ext,
+	&clk_epll,
+	&clk_mout_apll.clk,
+	&clk_mout_mpll.clk,
+	&clk_mout_epll.clk,
+	&clk_mout_d0.clk,
+	&clk_mout_d0sync.clk,
+	&clk_mout_d1.clk,
+	&clk_mout_d1sync.clk,
+	&clk_hclkd0,
+	&clk_pclkd0,
+	&clk_hclkd1,
+	&clk_pclkd1,
+};
+
+void __init s5p6442_register_clocks(void)
+{
+	s3c24xx_register_clocks(clks, ARRAY_SIZE(clks));
+
+	s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs));
+	s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks));
+
+	s3c_pwmclk_init();
+}
diff --git a/arch/arm/mach-s5p6442/cpu.c b/arch/arm/mach-s5p6442/cpu.c
new file mode 100644
index 00000000000..bc2524df89b
--- /dev/null
+++ b/arch/arm/mach-s5p6442/cpu.c
@@ -0,0 +1,121 @@
+/* linux/arch/arm/mach-s5p6442/cpu.c
+ *
+ * Copyright (c) 2010 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/types.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/timer.h>
+#include <linux/init.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/sysdev.h>
+#include <linux/serial_core.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <asm/proc-fns.h>
+
+#include <mach/hardware.h>
+#include <mach/map.h>
+#include <asm/irq.h>
+
+#include <plat/regs-serial.h>
+#include <mach/regs-clock.h>
+
+#include <plat/cpu.h>
+#include <plat/devs.h>
+#include <plat/clock.h>
+#include <plat/s5p6442.h>
+
+/* Initial IO mappings */
+
+static struct map_desc s5p6442_iodesc[] __initdata = {
+	{
+		.virtual	= (unsigned long)S5P_VA_SYSTIMER,
+		.pfn		= __phys_to_pfn(S5P6442_PA_SYSTIMER),
+		.length		= SZ_16K,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= (unsigned long)VA_VIC2,
+		.pfn		= __phys_to_pfn(S5P6442_PA_VIC2),
+		.length		= SZ_16K,
+		.type		= MT_DEVICE,
+	}
+};
+
+static void s5p6442_idle(void)
+{
+	if (!need_resched())
+		cpu_do_idle();
+
+	local_irq_enable();
+}
+
+/* s5p6442_map_io
+ *
+ * register the standard cpu IO areas
+*/
+
+void __init s5p6442_map_io(void)
+{
+	iotable_init(s5p6442_iodesc, ARRAY_SIZE(s5p6442_iodesc));
+}
+
+void __init s5p6442_init_clocks(int xtal)
+{
+	printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
+
+	s3c24xx_register_baseclocks(xtal);
+	s5p_register_clocks(xtal);
+	s5p6442_register_clocks();
+	s5p6442_setup_clocks();
+}
+
+void __init s5p6442_init_irq(void)
+{
+	/* S5P6442 supports 3 VIC */
+	u32 vic[3];
+
+	/* VIC0, VIC1, and VIC2: some interrupt reserved */
+	vic[0] = 0x7fefffff;
+	vic[1] = 0X7f389c81;
+	vic[2] = 0X1bbbcfff;
+
+	s5p_init_irq(vic, ARRAY_SIZE(vic));
+}
+
+static struct sysdev_class s5p6442_sysclass = {
+	.name	= "s5p6442-core",
+};
+
+static struct sys_device s5p6442_sysdev = {
+	.cls	= &s5p6442_sysclass,
+};
+
+static int __init s5p6442_core_init(void)
+{
+	return sysdev_class_register(&s5p6442_sysclass);
+}
+
+core_initcall(s5p6442_core_init);
+
+int __init s5p6442_init(void)
+{
+	printk(KERN_INFO "S5P6442: Initializing architecture\n");
+
+	/* set idle function */
+	pm_idle = s5p6442_idle;
+
+	return sysdev_register(&s5p6442_sysdev);
+}
diff --git a/arch/arm/mach-s5p6442/include/mach/debug-macro.S b/arch/arm/mach-s5p6442/include/mach/debug-macro.S
new file mode 100644
index 00000000000..bb6536147ff
--- /dev/null
+++ b/arch/arm/mach-s5p6442/include/mach/debug-macro.S
@@ -0,0 +1,36 @@
+/* linux/arch/arm/mach-s5p6442/include/mach/debug-macro.S
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * Based on arch/arm/mach-s3c6400/include/mach/debug-macro.S
+ *
+ * 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.
+*/
+
+/* pull in the relevant register and map files. */
+
+#include <mach/map.h>
+#include <plat/regs-serial.h>
+
+	.macro addruart, rx, rtmp
+		mrc	p15, 0, \rx, c1, c0
+		tst	\rx, #1
+		ldreq	\rx, = S3C_PA_UART
+		ldrne	\rx, = S3C_VA_UART
+#if CONFIG_DEBUG_S3C_UART != 0
+		add	\rx, \rx, #(0x400 * CONFIG_DEBUG_S3C_UART)
+#endif
+	.endm
+
+#define fifo_full fifo_full_s5pv210
+#define fifo_level fifo_level_s5pv210
+
+/* include the reset of the code which will do the work, we're only
+ * compiling for a single cpu processor type so the default of s3c2440
+ * will be fine with us.
+ */
+
+#include <plat/debug-macro.S>
diff --git a/arch/arm/mach-s5p6442/include/mach/entry-macro.S b/arch/arm/mach-s5p6442/include/mach/entry-macro.S
new file mode 100644
index 00000000000..6d574edbf1a
--- /dev/null
+++ b/arch/arm/mach-s5p6442/include/mach/entry-macro.S
@@ -0,0 +1,48 @@
+/* linux/arch/arm/mach-s5p6442/include/mach/entry-macro.S
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * Low-level IRQ helper macros for the Samsung S5P6442
+ *
+ * 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 <asm/hardware/vic.h>
+#include <mach/map.h>
+#include <plat/irqs.h>
+
+	.macro	disable_fiq
+	.endm
+
+	.macro	get_irqnr_preamble, base, tmp
+	ldr	\base, =VA_VIC0
+	.endm
+
+	.macro	arch_ret_to_user, tmp1, tmp2
+	.endm
+
+	.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
+
+	@ check the vic0
+	mov	\irqnr, # S5P_IRQ_OFFSET + 31
+	ldr	\irqstat, [ \base, # VIC_IRQ_STATUS ]
+	teq	\irqstat, #0
+
+	@ otherwise try vic1
+	addeq	\tmp, \base, #(VA_VIC1 - VA_VIC0)
+	addeq	\irqnr, \irqnr, #32
+	ldreq	\irqstat, [ \tmp, # VIC_IRQ_STATUS ]
+	teqeq	\irqstat, #0
+
+	@ otherwise try vic2
+	addeq	\tmp, \base, #(VA_VIC2 - VA_VIC0)
+	addeq	\irqnr, \irqnr, #32
+	ldreq	\irqstat, [ \tmp, # VIC_IRQ_STATUS ]
+	teqeq	\irqstat, #0
+
+	clzne	\irqstat, \irqstat
+	subne	\irqnr, \irqnr, \irqstat
+	.endm
diff --git a/arch/arm/mach-s5p6442/include/mach/gpio.h b/arch/arm/mach-s5p6442/include/mach/gpio.h
new file mode 100644
index 00000000000..b8715df2fda
--- /dev/null
+++ b/arch/arm/mach-s5p6442/include/mach/gpio.h
@@ -0,0 +1,123 @@
+/* linux/arch/arm/mach-s5p6442/include/mach/gpio.h
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S5P6442 - GPIO lib 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_ARCH_GPIO_H
+#define __ASM_ARCH_GPIO_H __FILE__
+
+#define gpio_get_value	__gpio_get_value
+#define gpio_set_value	__gpio_set_value
+#define gpio_cansleep	__gpio_cansleep
+#define gpio_to_irq	__gpio_to_irq
+
+/* GPIO bank sizes */
+#define S5P6442_GPIO_A0_NR	(8)
+#define S5P6442_GPIO_A1_NR	(2)
+#define S5P6442_GPIO_B_NR	(4)
+#define S5P6442_GPIO_C0_NR	(5)
+#define S5P6442_GPIO_C1_NR	(5)
+#define S5P6442_GPIO_D0_NR	(2)
+#define S5P6442_GPIO_D1_NR	(6)
+#define S5P6442_GPIO_E0_NR	(8)
+#define S5P6442_GPIO_E1_NR	(5)
+#define S5P6442_GPIO_F0_NR	(8)
+#define S5P6442_GPIO_F1_NR	(8)
+#define S5P6442_GPIO_F2_NR	(8)
+#define S5P6442_GPIO_F3_NR	(6)
+#define S5P6442_GPIO_G0_NR	(7)
+#define S5P6442_GPIO_G1_NR	(7)
+#define S5P6442_GPIO_G2_NR	(7)
+#define S5P6442_GPIO_H0_NR	(8)
+#define S5P6442_GPIO_H1_NR	(8)
+#define S5P6442_GPIO_H2_NR	(8)
+#define S5P6442_GPIO_H3_NR	(8)
+#define S5P6442_GPIO_J0_NR	(8)
+#define S5P6442_GPIO_J1_NR	(6)
+#define S5P6442_GPIO_J2_NR	(8)
+#define S5P6442_GPIO_J3_NR	(8)
+#define S5P6442_GPIO_J4_NR	(5)
+
+/* GPIO bank numbers */
+
+/* CONFIG_S3C_GPIO_SPACE allows the user to select extra
+ * space for debugging purposes so that any accidental
+ * change from one gpio bank to another can be caught.
+*/
+
+#define S5P6442_GPIO_NEXT(__gpio) \
+	((__gpio##_START) + (__gpio##_NR) + CONFIG_S3C_GPIO_SPACE + 1)
+
+enum s5p_gpio_number {
+	S5P6442_GPIO_A0_START	= 0,
+	S5P6442_GPIO_A1_START	= S5P6442_GPIO_NEXT(S5P6442_GPIO_A0),
+	S5P6442_GPIO_B_START	= S5P6442_GPIO_NEXT(S5P6442_GPIO_A1),
+	S5P6442_GPIO_C0_START	= S5P6442_GPIO_NEXT(S5P6442_GPIO_B),
+	S5P6442_GPIO_C1_START	= S5P6442_GPIO_NEXT(S5P6442_GPIO_C0),
+	S5P6442_GPIO_D0_START	= S5P6442_GPIO_NEXT(S5P6442_GPIO_C1),
+	S5P6442_GPIO_D1_START	= S5P6442_GPIO_NEXT(S5P6442_GPIO_D0),
+	S5P6442_GPIO_E0_START	= S5P6442_GPIO_NEXT(S5P6442_GPIO_D1),
+	S5P6442_GPIO_E1_START	= S5P6442_GPIO_NEXT(S5P6442_GPIO_E0),
+	S5P6442_GPIO_F0_START	= S5P6442_GPIO_NEXT(S5P6442_GPIO_E1),
+	S5P6442_GPIO_F1_START	= S5P6442_GPIO_NEXT(S5P6442_GPIO_F0),
+	S5P6442_GPIO_F2_START	= S5P6442_GPIO_NEXT(S5P6442_GPIO_F1),
+	S5P6442_GPIO_F3_START	= S5P6442_GPIO_NEXT(S5P6442_GPIO_F2),
+	S5P6442_GPIO_G0_START	= S5P6442_GPIO_NEXT(S5P6442_GPIO_F3),
+	S5P6442_GPIO_G1_START	= S5P6442_GPIO_NEXT(S5P6442_GPIO_G0),
+	S5P6442_GPIO_G2_START	= S5P6442_GPIO_NEXT(S5P6442_GPIO_G1),
+	S5P6442_GPIO_H0_START	= S5P6442_GPIO_NEXT(S5P6442_GPIO_G2),
+	S5P6442_GPIO_H1_START	= S5P6442_GPIO_NEXT(S5P6442_GPIO_H0),
+	S5P6442_GPIO_H2_START	= S5P6442_GPIO_NEXT(S5P6442_GPIO_H1),
+	S5P6442_GPIO_H3_START	= S5P6442_GPIO_NEXT(S5P6442_GPIO_H2),
+	S5P6442_GPIO_J0_START	= S5P6442_GPIO_NEXT(S5P6442_GPIO_H3),
+	S5P6442_GPIO_J1_START	= S5P6442_GPIO_NEXT(S5P6442_GPIO_J0),
+	S5P6442_GPIO_J2_START	= S5P6442_GPIO_NEXT(S5P6442_GPIO_J1),
+	S5P6442_GPIO_J3_START	= S5P6442_GPIO_NEXT(S5P6442_GPIO_J2),
+	S5P6442_GPIO_J4_START	= S5P6442_GPIO_NEXT(S5P6442_GPIO_J3),
+};
+
+/* S5P6442 GPIO number definitions. */
+#define S5P6442_GPA0(_nr)	(S5P6442_GPIO_A0_START + (_nr))
+#define S5P6442_GPA1(_nr)	(S5P6442_GPIO_A1_START + (_nr))
+#define S5P6442_GPB(_nr)	(S5P6442_GPIO_B_START + (_nr))
+#define S5P6442_GPC0(_nr)	(S5P6442_GPIO_C0_START + (_nr))
+#define S5P6442_GPC1(_nr)	(S5P6442_GPIO_C1_START + (_nr))
+#define S5P6442_GPD0(_nr)	(S5P6442_GPIO_D0_START + (_nr))
+#define S5P6442_GPD1(_nr)	(S5P6442_GPIO_D1_START + (_nr))
+#define S5P6442_GPE0(_nr)	(S5P6442_GPIO_E0_START + (_nr))
+#define S5P6442_GPE1(_nr)	(S5P6442_GPIO_E1_START + (_nr))
+#define S5P6442_GPF0(_nr)	(S5P6442_GPIO_F0_START + (_nr))
+#define S5P6442_GPF1(_nr)	(S5P6442_GPIO_F1_START + (_nr))
+#define S5P6442_GPF2(_nr)	(S5P6442_GPIO_F2_START + (_nr))
+#define S5P6442_GPF3(_nr)	(S5P6442_GPIO_F3_START + (_nr))
+#define S5P6442_GPG0(_nr)	(S5P6442_GPIO_G0_START + (_nr))
+#define S5P6442_GPG1(_nr)	(S5P6442_GPIO_G1_START + (_nr))
+#define S5P6442_GPG2(_nr)	(S5P6442_GPIO_G2_START + (_nr))
+#define S5P6442_GPH0(_nr)	(S5P6442_GPIO_H0_START + (_nr))
+#define S5P6442_GPH1(_nr)	(S5P6442_GPIO_H1_START + (_nr))
+#define S5P6442_GPH2(_nr)	(S5P6442_GPIO_H2_START + (_nr))
+#define S5P6442_GPH3(_nr)	(S5P6442_GPIO_H3_START + (_nr))
+#define S5P6442_GPJ0(_nr)	(S5P6442_GPIO_J0_START + (_nr))
+#define S5P6442_GPJ1(_nr)	(S5P6442_GPIO_J1_START + (_nr))
+#define S5P6442_GPJ2(_nr)	(S5P6442_GPIO_J2_START + (_nr))
+#define S5P6442_GPJ3(_nr)	(S5P6442_GPIO_J3_START + (_nr))
+#define S5P6442_GPJ4(_nr)	(S5P6442_GPIO_J4_START + (_nr))
+
+/* the end of the S5P6442 specific gpios */
+#define S5P6442_GPIO_END	(S5P6442_GPJ4(S5P6442_GPIO_J4_NR) + 1)
+#define S3C_GPIO_END		S5P6442_GPIO_END
+
+/* define the number of gpios we need to the one after the GPJ4() range */
+#define ARCH_NR_GPIOS		(S5P6442_GPJ4(S5P6442_GPIO_J4_NR) +	\
+				 CONFIG_SAMSUNG_GPIO_EXTRA + 1)
+
+#include <asm-generic/gpio.h>
+
+#endif /* __ASM_ARCH_GPIO_H */
diff --git a/arch/arm/mach-s5p6442/include/mach/hardware.h b/arch/arm/mach-s5p6442/include/mach/hardware.h
new file mode 100644
index 00000000000..8cd7b67b49d
--- /dev/null
+++ b/arch/arm/mach-s5p6442/include/mach/hardware.h
@@ -0,0 +1,18 @@
+/* linux/arch/arm/mach-s5p6442/include/mach/hardware.h
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S5P6442 - Hardware 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_ARCH_HARDWARE_H
+#define __ASM_ARCH_HARDWARE_H __FILE__
+
+/* currently nothing here, placeholder */
+
+#endif /* __ASM_ARCH_HARDWARE_H */
diff --git a/arch/arm/mach-s5p6442/include/mach/io.h b/arch/arm/mach-s5p6442/include/mach/io.h
new file mode 100644
index 00000000000..5d2195ad0b6
--- /dev/null
+++ b/arch/arm/mach-s5p6442/include/mach/io.h
@@ -0,0 +1,17 @@
+/* arch/arm/mach-s5p6442/include/mach/io.h
+ *
+ * Copyright 2008-2010 Ben Dooks <ben-linux@fluff.org>
+ *
+ * Default IO routines for S5P6442
+ */
+
+#ifndef __ASM_ARM_ARCH_IO_H
+#define __ASM_ARM_ARCH_IO_H
+
+/* No current ISA/PCI bus support. */
+#define __io(a)		__typesafe_io(a)
+#define __mem_pci(a)	(a)
+
+#define IO_SPACE_LIMIT (0xFFFFFFFF)
+
+#endif
diff --git a/arch/arm/mach-s5p6442/include/mach/irqs.h b/arch/arm/mach-s5p6442/include/mach/irqs.h
new file mode 100644
index 00000000000..da665809f6e
--- /dev/null
+++ b/arch/arm/mach-s5p6442/include/mach/irqs.h
@@ -0,0 +1,86 @@
+/* linux/arch/arm/mach-s5p6442/include/mach/irqs.h
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S5P6442 - IRQ 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_ARCH_IRQS_H
+#define __ASM_ARCH_IRQS_H __FILE__
+
+#include <plat/irqs.h>
+
+/* VIC0 */
+#define IRQ_EINT16_31 		S5P_IRQ_VIC0(16)
+#define IRQ_BATF 		S5P_IRQ_VIC0(17)
+#define IRQ_MDMA 		S5P_IRQ_VIC0(18)
+#define IRQ_PDMA 		S5P_IRQ_VIC0(19)
+#define IRQ_TIMER0_VIC		S5P_IRQ_VIC0(21)
+#define IRQ_TIMER1_VIC		S5P_IRQ_VIC0(22)
+#define IRQ_TIMER2_VIC		S5P_IRQ_VIC0(23)
+#define IRQ_TIMER3_VIC		S5P_IRQ_VIC0(24)
+#define IRQ_TIMER4_VIC		S5P_IRQ_VIC0(25)
+#define IRQ_SYSTIMER		S5P_IRQ_VIC0(26)
+#define IRQ_WDT			S5P_IRQ_VIC0(27)
+#define IRQ_RTC_ALARM		S5P_IRQ_VIC0(28)
+#define IRQ_RTC_TIC		S5P_IRQ_VIC0(29)
+#define IRQ_GPIOINT		S5P_IRQ_VIC0(30)
+
+/* VIC1 */
+#define IRQ_nPMUIRQ 		S5P_IRQ_VIC1(0)
+#define IRQ_ONENAND 		S5P_IRQ_VIC1(7)
+#define IRQ_UART0 		S5P_IRQ_VIC1(10)
+#define IRQ_UART1 		S5P_IRQ_VIC1(11)
+#define IRQ_UART2 		S5P_IRQ_VIC1(12)
+#define IRQ_SPI0 		S5P_IRQ_VIC1(15)
+#define IRQ_IIC 		S5P_IRQ_VIC1(19)
+#define IRQ_IIC1 		S5P_IRQ_VIC1(20)
+#define IRQ_IIC2 		S5P_IRQ_VIC1(21)
+#define IRQ_OTG 		S5P_IRQ_VIC1(24)
+#define IRQ_MSM 		S5P_IRQ_VIC1(25)
+#define IRQ_HSMMC0 		S5P_IRQ_VIC1(26)
+#define IRQ_HSMMC1 		S5P_IRQ_VIC1(27)
+#define IRQ_HSMMC2 		S5P_IRQ_VIC1(28)
+#define IRQ_COMMRX 		S5P_IRQ_VIC1(29)
+#define IRQ_COMMTX 		S5P_IRQ_VIC1(30)
+
+/* VIC2 */
+#define IRQ_LCD0 		S5P_IRQ_VIC2(0)
+#define IRQ_LCD1 		S5P_IRQ_VIC2(1)
+#define IRQ_LCD2 		S5P_IRQ_VIC2(2)
+#define IRQ_LCD3 		S5P_IRQ_VIC2(3)
+#define IRQ_ROTATOR 		S5P_IRQ_VIC2(4)
+#define IRQ_FIMC0 		S5P_IRQ_VIC2(5)
+#define IRQ_FIMC1 		S5P_IRQ_VIC2(6)
+#define IRQ_FIMC2 		S5P_IRQ_VIC2(7)
+#define IRQ_JPEG 		S5P_IRQ_VIC2(8)
+#define IRQ_3D 			S5P_IRQ_VIC2(10)
+#define IRQ_Mixer 		S5P_IRQ_VIC2(11)
+#define IRQ_MFC 		S5P_IRQ_VIC2(14)
+#define IRQ_TVENC 		S5P_IRQ_VIC2(15)
+#define IRQ_I2S0 		S5P_IRQ_VIC2(16)
+#define IRQ_I2S1 		S5P_IRQ_VIC2(17)
+#define IRQ_RP 			S5P_IRQ_VIC2(19)
+#define IRQ_PCM0 		S5P_IRQ_VIC2(20)
+#define IRQ_PCM1 		S5P_IRQ_VIC2(21)
+#define IRQ_ADC 		S5P_IRQ_VIC2(23)
+#define IRQ_PENDN 		S5P_IRQ_VIC2(24)
+#define IRQ_KEYPAD 		S5P_IRQ_VIC2(25)
+#define IRQ_SSS_INT 		S5P_IRQ_VIC2(27)
+#define IRQ_SSS_HASH 		S5P_IRQ_VIC2(28)
+#define IRQ_VIC_END 		S5P_IRQ_VIC2(31)
+
+#define S5P_IRQ_EINT_BASE	(IRQ_VIC_END + 1)
+
+#define IRQ_EINT(x)             ((x) < 16 ? S5P_IRQ_VIC0(x) : \
+					(S5P_IRQ_EINT_BASE + (x)-16))
+/* Set the default NR_IRQS */
+
+#define NR_IRQS 		(IRQ_EINT(31) + 1)
+
+#endif /* __ASM_ARCH_IRQS_H */
diff --git a/arch/arm/mach-s5p6442/include/mach/map.h b/arch/arm/mach-s5p6442/include/mach/map.h
new file mode 100644
index 00000000000..685277d792f
--- /dev/null
+++ b/arch/arm/mach-s5p6442/include/mach/map.h
@@ -0,0 +1,58 @@
+/* linux/arch/arm/mach-s5p6442/include/mach/map.h
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S5P6442 - 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_ARCH_MAP_H
+#define __ASM_ARCH_MAP_H __FILE__
+
+#include <plat/map-base.h>
+#include <plat/map-s5p.h>
+
+#define S5P6442_PA_CHIPID	(0xE0000000)
+#define S5P_PA_CHIPID		S5P6442_PA_CHIPID
+
+#define S5P6442_PA_SYSCON	(0xE0100000)
+#define S5P_PA_SYSCON		S5P6442_PA_SYSCON
+
+#define S5P6442_PA_GPIO		(0xE0200000)
+#define S5P_PA_GPIO		S5P6442_PA_GPIO
+
+#define S5P6442_PA_VIC0		(0xE4000000)
+#define S5P_PA_VIC0		S5P6442_PA_VIC0
+
+#define S5P6442_PA_VIC1		(0xE4100000)
+#define S5P_PA_VIC1		S5P6442_PA_VIC1
+
+#define S5P6442_PA_VIC2		(0xE4200000)
+#define S5P_PA_VIC2		S5P6442_PA_VIC2
+
+#define S5P6442_PA_TIMER	(0xEA000000)
+#define S5P_PA_TIMER		S5P6442_PA_TIMER
+
+#define S5P6442_PA_SYSTIMER   	(0xEA100000)
+
+#define S5P6442_PA_UART		(0xEC000000)
+
+#define S5P_PA_UART0		(S5P6442_PA_UART + 0x0)
+#define S5P_PA_UART1		(S5P6442_PA_UART + 0x400)
+#define S5P_PA_UART2		(S5P6442_PA_UART + 0x800)
+#define S5P_SZ_UART		SZ_256
+
+#define S5P6442_PA_IIC0		(0xEC100000)
+
+#define S5P6442_PA_SDRAM	(0x20000000)
+#define S5P_PA_SDRAM		S5P6442_PA_SDRAM
+
+/* compatibiltiy defines. */
+#define S3C_PA_UART		S5P6442_PA_UART
+#define S3C_PA_IIC		S5P6442_PA_IIC0
+
+#endif /* __ASM_ARCH_MAP_H */
diff --git a/arch/arm/mach-s5p6442/include/mach/memory.h b/arch/arm/mach-s5p6442/include/mach/memory.h
new file mode 100644
index 00000000000..9ddd877ba2e
--- /dev/null
+++ b/arch/arm/mach-s5p6442/include/mach/memory.h
@@ -0,0 +1,19 @@
+/* linux/arch/arm/mach-s5p6442/include/mach/memory.h
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S5P6442 - Memory 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_ARCH_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+#define PHYS_OFFSET		UL(0x20000000)
+#define CONSISTENT_DMA_SIZE	SZ_8M
+
+#endif /* __ASM_ARCH_MEMORY_H */
diff --git a/arch/arm/mach-s5p6442/include/mach/pwm-clock.h b/arch/arm/mach-s5p6442/include/mach/pwm-clock.h
new file mode 100644
index 00000000000..15e8525da0f
--- /dev/null
+++ b/arch/arm/mach-s5p6442/include/mach/pwm-clock.h
@@ -0,0 +1,69 @@
+/* linux/arch/arm/mach-s5p6442/include/mach/pwm-clock.h
+ *
+ * Copyright 2008 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *      http://armlinux.simtec.co.uk/
+ *
+ * Copyright 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * Based on arch/arm/plat-s3c24xx/include/mach/pwm-clock.h
+ *
+ * S5P6442 - pwm clock and timer 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_ARCH_PWMCLK_H
+#define __ASM_ARCH_PWMCLK_H __FILE__
+
+/**
+ * pwm_cfg_src_is_tclk() - return whether the given mux config is a tclk
+ * @cfg: The timer TCFG1 register bits shifted down to 0.
+ *
+ * Return true if the given configuration from TCFG1 is a TCLK instead
+ * any of the TDIV clocks.
+ */
+static inline int pwm_cfg_src_is_tclk(unsigned long tcfg)
+{
+	return tcfg == S3C2410_TCFG1_MUX_TCLK;
+}
+
+/**
+ * tcfg_to_divisor() - convert tcfg1 setting to a divisor
+ * @tcfg1: The tcfg1 setting, shifted down.
+ *
+ * Get the divisor value for the given tcfg1 setting. We assume the
+ * caller has already checked to see if this is not a TCLK source.
+ */
+static inline unsigned long tcfg_to_divisor(unsigned long tcfg1)
+{
+	return 1 << (1 + tcfg1);
+}
+
+/**
+ * pwm_tdiv_has_div1() - does the tdiv setting have a /1
+ *
+ * Return true if we have a /1 in the tdiv setting.
+ */
+static inline unsigned int pwm_tdiv_has_div1(void)
+{
+	return 0;
+}
+
+/**
+ * pwm_tdiv_div_bits() - calculate TCFG1 divisor value.
+ * @div: The divisor to calculate the bit information for.
+ *
+ * Turn a divisor into the necessary bit field for TCFG1.
+ */
+static inline unsigned long pwm_tdiv_div_bits(unsigned int div)
+{
+	return ilog2(div) - 1;
+}
+
+#define S3C_TCFG1_MUX_TCLK S3C2410_TCFG1_MUX_TCLK
+
+#endif /* __ASM_ARCH_PWMCLK_H */
diff --git a/arch/arm/mach-s5p6442/include/mach/regs-clock.h b/arch/arm/mach-s5p6442/include/mach/regs-clock.h
new file mode 100644
index 00000000000..d8360b5d4ec
--- /dev/null
+++ b/arch/arm/mach-s5p6442/include/mach/regs-clock.h
@@ -0,0 +1,103 @@
+/* linux/arch/arm/mach-s5p6442/include/mach/regs-clock.h
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S5P6442 - Clock register 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_ARCH_REGS_CLOCK_H
+#define __ASM_ARCH_REGS_CLOCK_H __FILE__
+
+#include <mach/map.h>
+
+#define S5P_CLKREG(x)		(S3C_VA_SYS + (x))
+
+#define S5P_APLL_LOCK		S5P_CLKREG(0x00)
+#define S5P_MPLL_LOCK		S5P_CLKREG(0x08)
+#define S5P_EPLL_LOCK		S5P_CLKREG(0x10)
+#define S5P_VPLL_LOCK		S5P_CLKREG(0x20)
+
+#define S5P_APLL_CON		S5P_CLKREG(0x100)
+#define S5P_MPLL_CON		S5P_CLKREG(0x108)
+#define S5P_EPLL_CON		S5P_CLKREG(0x110)
+#define S5P_VPLL_CON		S5P_CLKREG(0x120)
+
+#define S5P_CLK_SRC0		S5P_CLKREG(0x200)
+#define S5P_CLK_SRC1		S5P_CLKREG(0x204)
+#define S5P_CLK_SRC2		S5P_CLKREG(0x208)
+#define S5P_CLK_SRC3		S5P_CLKREG(0x20C)
+#define S5P_CLK_SRC4		S5P_CLKREG(0x210)
+#define S5P_CLK_SRC5		S5P_CLKREG(0x214)
+#define S5P_CLK_SRC6		S5P_CLKREG(0x218)
+
+#define S5P_CLK_SRC_MASK0	S5P_CLKREG(0x280)
+#define S5P_CLK_SRC_MASK1	S5P_CLKREG(0x284)
+
+#define S5P_CLK_DIV0		S5P_CLKREG(0x300)
+#define S5P_CLK_DIV1		S5P_CLKREG(0x304)
+#define S5P_CLK_DIV2		S5P_CLKREG(0x308)
+#define S5P_CLK_DIV3		S5P_CLKREG(0x30C)
+#define S5P_CLK_DIV4		S5P_CLKREG(0x310)
+#define S5P_CLK_DIV5		S5P_CLKREG(0x314)
+#define S5P_CLK_DIV6		S5P_CLKREG(0x318)
+
+#define S5P_CLKGATE_IP3		S5P_CLKREG(0x46C)
+
+/* CLK_OUT */
+#define S5P_CLK_OUT_SHIFT	(12)
+#define S5P_CLK_OUT_MASK	(0x1F << S5P_CLK_OUT_SHIFT)
+#define S5P_CLK_OUT		S5P_CLKREG(0x500)
+
+#define S5P_CLK_DIV_STAT0	S5P_CLKREG(0x1000)
+#define S5P_CLK_DIV_STAT1	S5P_CLKREG(0x1004)
+
+#define S5P_CLK_MUX_STAT0	S5P_CLKREG(0x1100)
+#define S5P_CLK_MUX_STAT1	S5P_CLKREG(0x1104)
+
+#define S5P_MDNIE_SEL		S5P_CLKREG(0x7008)
+
+/* Register Bit definition */
+#define S5P_EPLL_EN     		(1<<31)
+#define S5P_EPLL_MASK   		0xffffffff
+#define S5P_EPLLVAL(_m, _p, _s)   	((_m) << 16 | ((_p) << 8) | ((_s)))
+
+/* CLKDIV0 */
+#define S5P_CLKDIV0_APLL_SHIFT		(0)
+#define S5P_CLKDIV0_APLL_MASK		(0x7 << S5P_CLKDIV0_APLL_SHIFT)
+#define S5P_CLKDIV0_A2M_SHIFT		(4)
+#define S5P_CLKDIV0_A2M_MASK		(0x7 << S5P_CLKDIV0_A2M_SHIFT)
+#define S5P_CLKDIV0_D0CLK_SHIFT		(16)
+#define S5P_CLKDIV0_D0CLK_MASK		(0xF << S5P_CLKDIV0_D0CLK_SHIFT)
+#define S5P_CLKDIV0_P0CLK_SHIFT		(20)
+#define S5P_CLKDIV0_P0CLK_MASK		(0x7 << S5P_CLKDIV0_P0CLK_SHIFT)
+#define S5P_CLKDIV0_D1CLK_SHIFT		(24)
+#define S5P_CLKDIV0_D1CLK_MASK		(0xF << S5P_CLKDIV0_D1CLK_SHIFT)
+#define S5P_CLKDIV0_P1CLK_SHIFT		(28)
+#define S5P_CLKDIV0_P1CLK_MASK		(0x7 << S5P_CLKDIV0_P1CLK_SHIFT)
+
+/* Clock MUX status Registers */
+#define S5P_CLK_MUX_STAT0_APLL_SHIFT	(0)
+#define S5P_CLK_MUX_STAT0_APLL_MASK	(0x7 << S5P_CLK_MUX_STAT0_APLL_SHIFT)
+#define S5P_CLK_MUX_STAT0_MPLL_SHIFT	(4)
+#define S5P_CLK_MUX_STAT0_MPLL_MASK	(0x7 << S5P_CLK_MUX_STAT0_MPLL_SHIFT)
+#define S5P_CLK_MUX_STAT0_EPLL_SHIFT	(8)
+#define S5P_CLK_MUX_STAT0_EPLL_MASK	(0x7 << S5P_CLK_MUX_STAT0_EPLL_SHIFT)
+#define S5P_CLK_MUX_STAT0_VPLL_SHIFT	(12)
+#define S5P_CLK_MUX_STAT0_VPLL_MASK	(0x7 << S5P_CLK_MUX_STAT0_VPLL_SHIFT)
+#define S5P_CLK_MUX_STAT0_MUXARM_SHIFT	(16)
+#define S5P_CLK_MUX_STAT0_MUXARM_MASK	(0x7 << S5P_CLK_MUX_STAT0_MUXARM_SHIFT)
+#define S5P_CLK_MUX_STAT0_MUXD0_SHIFT	(20)
+#define S5P_CLK_MUX_STAT0_MUXD0_MASK	(0x7 << S5P_CLK_MUX_STAT0_MUXD0_SHIFT)
+#define S5P_CLK_MUX_STAT0_MUXD1_SHIFT	(24)
+#define S5P_CLK_MUX_STAT0_MUXD1_MASK	(0x7 << S5P_CLK_MUX_STAT0_MUXD1_SHIFT)
+#define S5P_CLK_MUX_STAT1_D1SYNC_SHIFT	(24)
+#define S5P_CLK_MUX_STAT1_D1SYNC_MASK	(0x7 << S5P_CLK_MUX_STAT1_D1SYNC_SHIFT)
+#define S5P_CLK_MUX_STAT1_D0SYNC_SHIFT	(28)
+#define S5P_CLK_MUX_STAT1_D0SYNC_MASK	(0x7 << S5P_CLK_MUX_STAT1_D0SYNC_SHIFT)
+
+#endif /* __ASM_ARCH_REGS_CLOCK_H */
diff --git a/arch/arm/mach-s5p6442/include/mach/regs-irq.h b/arch/arm/mach-s5p6442/include/mach/regs-irq.h
new file mode 100644
index 00000000000..73782b52a83
--- /dev/null
+++ b/arch/arm/mach-s5p6442/include/mach/regs-irq.h
@@ -0,0 +1,19 @@
+/* linux/arch/arm/mach-s5p6442/include/mach/regs-irq.h
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S5P6442 - IRQ register 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_ARCH_REGS_IRQ_H
+#define __ASM_ARCH_REGS_IRQ_H __FILE__
+
+#include <asm/hardware/vic.h>
+#include <mach/map.h>
+
+#endif /* __ASM_ARCH_REGS_IRQ_H */
diff --git a/arch/arm/mach-s5p6442/include/mach/system.h b/arch/arm/mach-s5p6442/include/mach/system.h
new file mode 100644
index 00000000000..8bcd8ed0c3c
--- /dev/null
+++ b/arch/arm/mach-s5p6442/include/mach/system.h
@@ -0,0 +1,26 @@
+/* linux/arch/arm/mach-s5p6442/include/mach/system.h
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S5P6442 - system support header
+ *
+ * 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_ARCH_SYSTEM_H
+#define __ASM_ARCH_SYSTEM_H __FILE__
+
+static void arch_idle(void)
+{
+	/* nothing here yet */
+}
+
+static void arch_reset(char mode, const char *cmd)
+{
+	/* nothing here yet */
+}
+
+#endif /* __ASM_ARCH_SYSTEM_H */
diff --git a/arch/arm/mach-s5p6442/include/mach/tick.h b/arch/arm/mach-s5p6442/include/mach/tick.h
new file mode 100644
index 00000000000..e1d4cabf829
--- /dev/null
+++ b/arch/arm/mach-s5p6442/include/mach/tick.h
@@ -0,0 +1,26 @@
+/* linux/arch/arm/mach-s5p6442/include/mach/tick.h
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * Based on arch/arm/mach-s3c6400/include/mach/tick.h
+ *
+ * S5P6442 - Timer tick support 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_ARCH_TICK_H
+#define __ASM_ARCH_TICK_H __FILE__
+
+static inline u32 s3c24xx_ostimer_pending(void)
+{
+	u32 pend = __raw_readl(VA_VIC0 + VIC_RAW_STATUS);
+	return pend & (1 << (IRQ_TIMER4_VIC - S5P_IRQ_VIC0(0)));
+}
+
+#define TICK_MAX	(0xffffffff)
+
+#endif /* __ASM_ARCH_TICK_H */
diff --git a/arch/arm/mach-s5p6442/include/mach/timex.h b/arch/arm/mach-s5p6442/include/mach/timex.h
new file mode 100644
index 00000000000..ff8f2fcadeb
--- /dev/null
+++ b/arch/arm/mach-s5p6442/include/mach/timex.h
@@ -0,0 +1,24 @@
+/* arch/arm/mach-s5p6442/include/mach/timex.h
+ *
+ * Copyright (c) 2003-2010 Simtec Electronics
+ *	Ben Dooks <ben@simtec.co.uk>
+ *
+ * S5P6442 - time parameters
+ *
+ * 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_ARCH_TIMEX_H
+#define __ASM_ARCH_TIMEX_H
+
+/* CLOCK_TICK_RATE needs to be evaluatable by the cpp, so making it
+ * a variable is useless. It seems as long as we make our timers an
+ * exact multiple of HZ, any value that makes a 1->1 correspondence
+ * for the time conversion functions to/from jiffies is acceptable.
+*/
+
+#define CLOCK_TICK_RATE 12000000
+
+#endif /* __ASM_ARCH_TIMEX_H */
diff --git a/arch/arm/mach-s5p6442/include/mach/uncompress.h b/arch/arm/mach-s5p6442/include/mach/uncompress.h
new file mode 100644
index 00000000000..5ac7cbeeb98
--- /dev/null
+++ b/arch/arm/mach-s5p6442/include/mach/uncompress.h
@@ -0,0 +1,24 @@
+/* linux/arch/arm/mach-s5p6442/include/mach/uncompress.h
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S5P6442 - uncompress code
+ *
+ * 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_ARCH_UNCOMPRESS_H
+#define __ASM_ARCH_UNCOMPRESS_H
+
+#include <mach/map.h>
+#include <plat/uncompress.h>
+
+static void arch_detect_cpu(void)
+{
+	/* we do not need to do any cpu detection here at the moment. */
+}
+
+#endif /* __ASM_ARCH_UNCOMPRESS_H */
diff --git a/arch/arm/mach-s5p6442/include/mach/vmalloc.h b/arch/arm/mach-s5p6442/include/mach/vmalloc.h
new file mode 100644
index 00000000000..be3333688c2
--- /dev/null
+++ b/arch/arm/mach-s5p6442/include/mach/vmalloc.h
@@ -0,0 +1,17 @@
+/* arch/arm/mach-s5p6442/include/mach/vmalloc.h
+ *
+ * Copyright 2010 Ben Dooks <ben-linux@fluff.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.
+ *
+ * S5P6442 vmalloc definition
+*/
+
+#ifndef __ASM_ARCH_VMALLOC_H
+#define __ASM_ARCH_VMALLOC_H
+
+#define VMALLOC_END	  (0xE0000000)
+
+#endif /* __ASM_ARCH_VMALLOC_H */
diff --git a/arch/arm/mach-s5p6442/init.c b/arch/arm/mach-s5p6442/init.c
new file mode 100644
index 00000000000..1874bdb71e1
--- /dev/null
+++ b/arch/arm/mach-s5p6442/init.c
@@ -0,0 +1,44 @@
+/* linux/arch/arm/mach-s5p6442/s5p6442-init.c
+ *
+ * Copyright (c) 2010 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/types.h>
+#include <linux/init.h>
+#include <linux/serial_core.h>
+
+#include <plat/cpu.h>
+#include <plat/devs.h>
+#include <plat/s5p6442.h>
+#include <plat/regs-serial.h>
+
+static struct s3c24xx_uart_clksrc s5p6442_serial_clocks[] = {
+	[0] = {
+		.name		= "pclk",
+		.divisor	= 1,
+		.min_baud	= 0,
+		.max_baud	= 0,
+	},
+};
+
+/* uart registration process */
+void __init s5p6442_common_init_uarts(struct s3c2410_uartcfg *cfg, int no)
+{
+	struct s3c2410_uartcfg *tcfg = cfg;
+	u32 ucnt;
+
+	for (ucnt = 0; ucnt < no; ucnt++, tcfg++) {
+		if (!tcfg->clocks) {
+			tcfg->clocks = s5p6442_serial_clocks;
+			tcfg->clocks_size = ARRAY_SIZE(s5p6442_serial_clocks);
+		}
+	}
+
+	s3c24xx_init_uartdevs("s5pv210-uart", s5p_uart_resources, cfg, no);
+}
diff --git a/arch/arm/mach-s5p6442/mach-smdk6442.c b/arch/arm/mach-s5p6442/mach-smdk6442.c
new file mode 100644
index 00000000000..0d63371ce07
--- /dev/null
+++ b/arch/arm/mach-s5p6442/mach-smdk6442.c
@@ -0,0 +1,91 @@
+/* linux/arch/arm/mach-s5p6442/mach-smdk6442.c
+ *
+ * Copyright (c) 2010 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/types.h>
+#include <linux/init.h>
+#include <linux/serial_core.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/setup.h>
+#include <asm/mach-types.h>
+
+#include <mach/map.h>
+#include <mach/regs-clock.h>
+
+#include <plat/regs-serial.h>
+#include <plat/s5p6442.h>
+#include <plat/devs.h>
+#include <plat/cpu.h>
+
+/* Following are default values for UCON, ULCON and UFCON UART registers */
+#define S5P6442_UCON_DEFAULT	(S3C2410_UCON_TXILEVEL |	\
+				 S3C2410_UCON_RXILEVEL |	\
+				 S3C2410_UCON_TXIRQMODE |	\
+				 S3C2410_UCON_RXIRQMODE |	\
+				 S3C2410_UCON_RXFIFO_TOI |	\
+				 S3C2443_UCON_RXERR_IRQEN)
+
+#define S5P6442_ULCON_DEFAULT	S3C2410_LCON_CS8
+
+#define S5P6442_UFCON_DEFAULT	(S3C2410_UFCON_FIFOMODE |	\
+				 S5PV210_UFCON_TXTRIG4 |	\
+				 S5PV210_UFCON_RXTRIG4)
+
+static struct s3c2410_uartcfg smdk6442_uartcfgs[] __initdata = {
+	[0] = {
+		.hwport		= 0,
+		.flags		= 0,
+		.ucon		= S5P6442_UCON_DEFAULT,
+		.ulcon		= S5P6442_ULCON_DEFAULT,
+		.ufcon		= S5P6442_UFCON_DEFAULT,
+	},
+	[1] = {
+		.hwport		= 1,
+		.flags		= 0,
+		.ucon		= S5P6442_UCON_DEFAULT,
+		.ulcon		= S5P6442_ULCON_DEFAULT,
+		.ufcon		= S5P6442_UFCON_DEFAULT,
+	},
+	[2] = {
+		.hwport		= 2,
+		.flags		= 0,
+		.ucon		= S5P6442_UCON_DEFAULT,
+		.ulcon		= S5P6442_ULCON_DEFAULT,
+		.ufcon		= S5P6442_UFCON_DEFAULT,
+	},
+};
+
+static struct platform_device *smdk6442_devices[] __initdata = {
+};
+
+static void __init smdk6442_map_io(void)
+{
+	s5p_init_io(NULL, 0, S5P_VA_CHIPID);
+	s3c24xx_init_clocks(12000000);
+	s3c24xx_init_uarts(smdk6442_uartcfgs, ARRAY_SIZE(smdk6442_uartcfgs));
+}
+
+static void __init smdk6442_machine_init(void)
+{
+	platform_add_devices(smdk6442_devices, ARRAY_SIZE(smdk6442_devices));
+}
+
+MACHINE_START(SMDK6442, "SMDK6442")
+	/* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
+	.phys_io	= S3C_PA_UART & 0xfff00000,
+	.io_pg_offst	= (((u32)S3C_VA_UART) >> 18) & 0xfffc,
+	.boot_params	= S5P_PA_SDRAM + 0x100,
+	.init_irq	= s5p6442_init_irq,
+	.map_io		= smdk6442_map_io,
+	.init_machine	= smdk6442_machine_init,
+	.timer		= &s3c24xx_timer,
+MACHINE_END