25 files changed, 2086 insertions, 0 deletions

diff --git a/arch/arm/mach-s5p6440/Kconfig b/arch/arm/mach-s5p6440/Kconfig
new file mode 100644
index 000000000000..4c29ff8b07de
--- /dev/null
+++ b/arch/arm/mach-s5p6440/Kconfig
@@ -0,0 +1,21 @@
+# arch/arm/mach-s5p6440/Kconfig
+#
+# Copyright (c) 2009 Samsung Electronics Co., Ltd.
+#               http://www.samsung.com/
+#
+# Licensed under GPLv2
+
+if ARCH_S5P6440
+
+config CPU_S5P6440
+        bool
+        help
+          Enable S5P6440 CPU support
+
+config MACH_SMDK6440
+        bool "SMDK6440"
+        select CPU_S5P6440
+        help
+          Machine support for the Samsung SMDK6440
+
+endif
diff --git a/arch/arm/mach-s5p6440/Makefile b/arch/arm/mach-s5p6440/Makefile
new file mode 100644
index 000000000000..1ad894b1d3ab
--- /dev/null
+++ b/arch/arm/mach-s5p6440/Makefile
@@ -0,0 +1,19 @@
+# arch/arm/mach-s5p6440/Makefile
+#
+# Copyright (c) 2009 Samsung Electronics Co., Ltd.
+#               http://www.samsung.com/
+#
+# Licensed under GPLv2
+
+obj-y                           :=
+obj-m                           :=
+obj-n                           :=
+obj-                            :=
+
+# Core support for S5P6440 system
+
+obj-$(CONFIG_CPU_S5P6440)       += cpu.o init.o clock.o gpio.o
+
+# machine support
+
+obj-$(CONFIG_MACH_SMDK6440)     += mach-smdk6440.o
diff --git a/arch/arm/mach-s5p6440/Makefile.boot b/arch/arm/mach-s5p6440/Makefile.boot
new file mode 100644
index 000000000000..ff90aa13bd67
--- /dev/null
+++ b/arch/arm/mach-s5p6440/Makefile.boot
@@ -0,0 +1,2 @@
+   zreladdr-y   := 0x20008000
+params_phys-y   := 0x20000100
diff --git a/arch/arm/mach-s5p6440/clock.c b/arch/arm/mach-s5p6440/clock.c
new file mode 100644
index 000000000000..b2672e16e7aa
--- /dev/null
+++ b/arch/arm/mach-s5p6440/clock.c
@@ -0,0 +1,698 @@
+/* linux/arch/arm/mach-s5p6440/clock.c
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *              http://www.samsung.com/
+ *
+ * S5P6440 - 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 <mach/hardware.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/clock-clksrc.h>
+#include <plat/s5p-clock.h>
+#include <plat/pll.h>
+#include <plat/s5p6440.h>
+
+/* APLL Mux output clock */
+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 int s5p6440_epll_enable(struct clk *clk, int enable)
+{
+        unsigned int ctrlbit = clk->ctrlbit;
+        unsigned int epll_con = __raw_readl(S5P_EPLL_CON) & ~ctrlbit;
+
+        if (enable)
+                __raw_writel(epll_con | ctrlbit, S5P_EPLL_CON);
+        else
+                __raw_writel(epll_con, S5P_EPLL_CON);
+
+        return 0;
+}
+
+static unsigned long s5p6440_epll_get_rate(struct clk *clk)
+{
+        return clk->rate;
+}
+
+static u32 epll_div[][5] = {
+        { 36000000,     0,      48, 1, 4 },
+        { 48000000,     0,      32, 1, 3 },
+        { 60000000,     0,      40, 1, 3 },
+        { 72000000,     0,      48, 1, 3 },
+        { 84000000,     0,      28, 1, 2 },
+        { 96000000,     0,      32, 1, 2 },
+        { 32768000,     45264,  43, 1, 4 },
+        { 45158000,     6903,   30, 1, 3 },
+        { 49152000,     50332,  32, 1, 3 },
+        { 67738000,     10398,  45, 1, 3 },
+        { 73728000,     9961,   49, 1, 3 }
+};
+
+static int s5p6440_epll_set_rate(struct clk *clk, unsigned long rate)
+{
+        unsigned int epll_con, epll_con_k;
+        unsigned int i;
+
+        if (clk->rate == rate)  /* Return if nothing changed */
+                return 0;
+
+        epll_con = __raw_readl(S5P_EPLL_CON);
+        epll_con_k = __raw_readl(S5P_EPLL_CON_K);
+
+        epll_con_k &= ~(PLL90XX_KDIV_MASK);
+        epll_con &= ~(PLL90XX_MDIV_MASK | PLL90XX_PDIV_MASK | PLL90XX_SDIV_MASK);
+
+        for (i = 0; i < ARRAY_SIZE(epll_div); i++) {
+                 if (epll_div[i][0] == rate) {
+                        epll_con_k |= (epll_div[i][1] << PLL90XX_KDIV_SHIFT);
+                        epll_con |= (epll_div[i][2] << PLL90XX_MDIV_SHIFT) |
+                                    (epll_div[i][3] << PLL90XX_PDIV_SHIFT) |
+                                    (epll_div[i][4] << PLL90XX_SDIV_SHIFT);
+                        break;
+                }
+        }
+
+        if (i == ARRAY_SIZE(epll_div)) {
+                printk(KERN_ERR "%s: Invalid Clock EPLL Frequency\n", __func__);
+                return -EINVAL;
+        }
+
+        __raw_writel(epll_con, S5P_EPLL_CON);
+        __raw_writel(epll_con_k, S5P_EPLL_CON_K);
+
+        clk->rate = rate;
+
+        return 0;
+}
+
+static struct clk_ops s5p6440_epll_ops = {
+        .get_rate = s5p6440_epll_get_rate,
+        .set_rate = s5p6440_epll_set_rate,
+};
+
+static struct clksrc_clk clk_mout_epll = {
+        .clk    = {
+                .name           = "mout_epll",
+                .id             = -1,
+        },
+        .sources        = &clk_src_epll,
+        .reg_src        = { .reg = S5P_CLK_SRC0, .shift = 2, .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 = 1, .size = 1 },
+};
+
+static struct clk clk_h_low = {
+        .name           = "hclk_low",
+        .id             = -1,
+        .rate           = 0,
+        .parent         = NULL,
+        .ctrlbit        = 0,
+        .ops            = &clk_ops_def_setrate,
+};
+
+static struct clk clk_p_low = {
+        .name           = "pclk_low",
+        .id             = -1,
+        .rate           = 0,
+        .parent         = NULL,
+        .ctrlbit        = 0,
+        .ops            = &clk_ops_def_setrate,
+};
+
+enum perf_level {
+        L0 = 532*1000,
+        L1 = 266*1000,
+        L2 = 133*1000,
+};
+
+static const u32 clock_table[][3] = {
+        /*{ARM_CLK, DIVarm, DIVhclk}*/
+        {L0 * 1000, (0 << ARM_DIV_RATIO_SHIFT), (3 << S5P_CLKDIV0_HCLK_SHIFT)},
+        {L1 * 1000, (1 << ARM_DIV_RATIO_SHIFT), (1 << S5P_CLKDIV0_HCLK_SHIFT)},
+        {L2 * 1000, (3 << ARM_DIV_RATIO_SHIFT), (0 << S5P_CLKDIV0_HCLK_SHIFT)},
+};
+
+static unsigned long s5p6440_armclk_get_rate(struct clk *clk)
+{
+        unsigned long rate = clk_get_rate(clk->parent);
+        u32 clkdiv;
+
+        /* divisor mask starts at bit0, so no need to shift */
+        clkdiv = __raw_readl(ARM_CLK_DIV) & ARM_DIV_MASK;
+
+        return rate / (clkdiv + 1);
+}
+
+static unsigned long s5p6440_armclk_round_rate(struct clk *clk,
+                                                unsigned long rate)
+{
+        u32 iter;
+
+        for (iter = 1 ; iter < ARRAY_SIZE(clock_table) ; iter++) {
+                if (rate > clock_table[iter][0])
+                        return clock_table[iter-1][0];
+        }
+
+        return clock_table[ARRAY_SIZE(clock_table) - 1][0];
+}
+
+static int s5p6440_armclk_set_rate(struct clk *clk, unsigned long rate)
+{
+        u32 round_tmp;
+        u32 iter;
+        u32 clk_div0_tmp;
+        u32 cur_rate = clk->ops->get_rate(clk);
+        unsigned long flags;
+
+        round_tmp = clk->ops->round_rate(clk, rate);
+        if (round_tmp == cur_rate)
+                return 0;
+
+
+        for (iter = 0 ; iter < ARRAY_SIZE(clock_table) ; iter++) {
+                if (round_tmp == clock_table[iter][0])
+                        break;
+        }
+
+        if (iter >= ARRAY_SIZE(clock_table))
+                iter = ARRAY_SIZE(clock_table) - 1;
+
+        local_irq_save(flags);
+        if (cur_rate > round_tmp) {
+                /* Frequency Down */
+                clk_div0_tmp = __raw_readl(ARM_CLK_DIV) & ~(ARM_DIV_MASK);
+                clk_div0_tmp |= clock_table[iter][1];
+                __raw_writel(clk_div0_tmp, ARM_CLK_DIV);
+
+                clk_div0_tmp = __raw_readl(ARM_CLK_DIV) &
+                                ~(S5P_CLKDIV0_HCLK_MASK);
+                clk_div0_tmp |= clock_table[iter][2];
+                __raw_writel(clk_div0_tmp, ARM_CLK_DIV);
+
+
+        } else {
+                /* Frequency Up */
+                clk_div0_tmp = __raw_readl(ARM_CLK_DIV) &
+                                ~(S5P_CLKDIV0_HCLK_MASK);
+                clk_div0_tmp |= clock_table[iter][2];
+                __raw_writel(clk_div0_tmp, ARM_CLK_DIV);
+
+                clk_div0_tmp = __raw_readl(ARM_CLK_DIV) & ~(ARM_DIV_MASK);
+                clk_div0_tmp |= clock_table[iter][1];
+                __raw_writel(clk_div0_tmp, ARM_CLK_DIV);
+                }
+        local_irq_restore(flags);
+
+        clk->rate = clock_table[iter][0];
+
+        return 0;
+}
+
+static struct clk_ops s5p6440_clkarm_ops = {
+        .get_rate       = s5p6440_armclk_get_rate,
+        .set_rate       = s5p6440_armclk_set_rate,
+        .round_rate     = s5p6440_armclk_round_rate,
+};
+
+static unsigned long s5p6440_clk_doutmpll_get_rate(struct clk *clk)
+{
+        unsigned long rate = clk_get_rate(clk->parent);
+
+        if (__raw_readl(S5P_CLK_DIV0) & S5P_CLKDIV0_MPLL_MASK)
+                rate /= 2;
+
+        return rate;
+}
+
+static struct clk clk_dout_mpll = {
+        .name           = "dout_mpll",
+        .id             = -1,
+        .parent         = &clk_mout_mpll.clk,
+        .ops            = &(struct clk_ops) {
+                .get_rate       = s5p6440_clk_doutmpll_get_rate,
+        },
+};
+
+int s5p6440_clk48m_ctrl(struct clk *clk, int enable)
+{
+        unsigned long flags;
+        u32 val;
+
+        /* can't rely on clock lock, this register has other usages */
+        local_irq_save(flags);
+
+        val = __raw_readl(S5P_OTHERS);
+        if (enable)
+                val |= S5P_OTHERS_USB_SIG_MASK;
+        else
+                val &= ~S5P_OTHERS_USB_SIG_MASK;
+
+        __raw_writel(val, S5P_OTHERS);
+
+        local_irq_restore(flags);
+
+        return 0;
+}
+
+static int s5p6440_pclk_ctrl(struct clk *clk, int enable)
+{
+        return s5p_gatectrl(S5P_CLK_GATE_PCLK, clk, enable);
+}
+
+static int s5p6440_hclk0_ctrl(struct clk *clk, int enable)
+{
+        return s5p_gatectrl(S5P_CLK_GATE_HCLK0, clk, enable);
+}
+
+static int s5p6440_hclk1_ctrl(struct clk *clk, int enable)
+{
+        return s5p_gatectrl(S5P_CLK_GATE_HCLK1, clk, enable);
+}
+
+static int s5p6440_sclk_ctrl(struct clk *clk, int enable)
+{
+        return s5p_gatectrl(S5P_CLK_GATE_SCLK0, clk, enable);
+}
+
+static int s5p6440_mem_ctrl(struct clk *clk, int enable)
+{
+        return s5p_gatectrl(S5P_CLK_GATE_MEM0, clk, enable);
+}
+
+/*
+ * The following clocks will be disabled during clock initialization. It is
+ * recommended to keep the following clocks disabled until the driver requests
+ * for enabling the clock.
+ */
+static struct clk init_clocks_disable[] = {
+        {
+                .name           = "nand",
+                .id             = -1,
+                .parent         = &clk_h,
+                .enable         = s5p6440_mem_ctrl,
+                .ctrlbit        = S5P_CLKCON_MEM0_HCLK_NFCON,
+        }, {
+                .name           = "adc",
+                .id             = -1,
+                .parent         = &clk_p_low,
+                .enable         = s5p6440_pclk_ctrl,
+                .ctrlbit        = S5P_CLKCON_PCLK_TSADC,
+        }, {
+                .name           = "i2c",
+                .id             = -1,
+                .parent         = &clk_p_low,
+                .enable         = s5p6440_pclk_ctrl,
+                .ctrlbit        = S5P_CLKCON_PCLK_IIC0,
+        }, {
+                .name           = "i2s_v40",
+                .id             = 0,
+                .parent         = &clk_p_low,
+                .enable         = s5p6440_pclk_ctrl,
+                .ctrlbit        = S5P_CLKCON_PCLK_IIS2,
+        }, {
+                .name           = "spi",
+                .id             = 0,
+                .parent         = &clk_p_low,
+                .enable         = s5p6440_pclk_ctrl,
+                .ctrlbit        = S5P_CLKCON_PCLK_SPI0,
+        }, {
+                .name           = "spi",
+                .id             = 1,
+                .parent         = &clk_p_low,
+                .enable         = s5p6440_pclk_ctrl,
+                .ctrlbit        = S5P_CLKCON_PCLK_SPI1,
+        }, {
+                .name           = "sclk_spi_48",
+                .id             = 0,
+                .parent         = &clk_48m,
+                .enable         = s5p6440_sclk_ctrl,
+                .ctrlbit        = S5P_CLKCON_SCLK0_SPI0_48,
+        }, {
+                .name           = "sclk_spi_48",
+                .id             = 1,
+                .parent         = &clk_48m,
+                .enable         = s5p6440_sclk_ctrl,
+                .ctrlbit        = S5P_CLKCON_SCLK0_SPI1_48,
+        }, {
+                .name           = "mmc_48m",
+                .id             = 0,
+                .parent         = &clk_48m,
+                .enable         = s5p6440_sclk_ctrl,
+                .ctrlbit        = S5P_CLKCON_SCLK0_MMC0_48,
+        }, {
+                .name           = "mmc_48m",
+                .id             = 1,
+                .parent         = &clk_48m,
+                .enable         = s5p6440_sclk_ctrl,
+                .ctrlbit        = S5P_CLKCON_SCLK0_MMC1_48,
+        }, {
+                .name           = "mmc_48m",
+                .id             = 2,
+                .parent         = &clk_48m,
+                .enable         = s5p6440_sclk_ctrl,
+                .ctrlbit        = S5P_CLKCON_SCLK0_MMC2_48,
+        }, {
+                .name           = "otg",
+                .id             = -1,
+                .parent         = &clk_h_low,
+                .enable         = s5p6440_hclk0_ctrl,
+                .ctrlbit        = S5P_CLKCON_HCLK0_USB
+        }, {
+                .name           = "post",
+                .id             = -1,
+                .parent         = &clk_h_low,
+                .enable         = s5p6440_hclk0_ctrl,
+                .ctrlbit        = S5P_CLKCON_HCLK0_POST0
+        }, {
+                .name           = "lcd",
+                .id             = -1,
+                .parent         = &clk_h_low,
+                .enable         = s5p6440_hclk1_ctrl,
+                .ctrlbit        = S5P_CLKCON_HCLK1_DISPCON,
+        }, {
+                .name           = "hsmmc",
+                .id             = 0,
+                .parent         = &clk_h_low,
+                .enable         = s5p6440_hclk0_ctrl,
+                .ctrlbit        = S5P_CLKCON_HCLK0_HSMMC0,
+        }, {
+                .name           = "hsmmc",
+                .id             = 1,
+                .parent         = &clk_h_low,
+                .enable         = s5p6440_hclk0_ctrl,
+                .ctrlbit        = S5P_CLKCON_HCLK0_HSMMC1,
+        }, {
+                .name           = "hsmmc",
+                .id             = 2,
+                .parent         = &clk_h_low,
+                .enable         = s5p6440_hclk0_ctrl,
+                .ctrlbit        = S5P_CLKCON_HCLK0_HSMMC2,
+        }, {
+                .name           = "rtc",
+                .id             = -1,
+                .parent         = &clk_p_low,
+                .enable         = s5p6440_pclk_ctrl,
+                .ctrlbit        = S5P_CLKCON_PCLK_RTC,
+        }, {
+                .name           = "watchdog",
+                .id             = -1,
+                .parent         = &clk_p_low,
+                .enable         = s5p6440_pclk_ctrl,
+                .ctrlbit        = S5P_CLKCON_PCLK_WDT,
+        }, {
+                .name           = "timers",
+                .id             = -1,
+                .parent         = &clk_p_low,
+                .enable         = s5p6440_pclk_ctrl,
+                .ctrlbit        = S5P_CLKCON_PCLK_PWM,
+        }
+};
+
+/*
+ * The following clocks will be enabled during clock initialization.
+ */
+static struct clk init_clocks[] = {
+        {
+                .name           = "gpio",
+                .id             = -1,
+                .parent         = &clk_p_low,
+                .enable         = s5p6440_pclk_ctrl,
+                .ctrlbit        = S5P_CLKCON_PCLK_GPIO,
+        }, {
+                .name           = "uart",
+                .id             = 0,
+                .parent         = &clk_p_low,
+                .enable         = s5p6440_pclk_ctrl,
+                .ctrlbit        = S5P_CLKCON_PCLK_UART0,
+        }, {
+                .name           = "uart",
+                .id             = 1,
+                .parent         = &clk_p_low,
+                .enable         = s5p6440_pclk_ctrl,
+                .ctrlbit        = S5P_CLKCON_PCLK_UART1,
+        }, {
+                .name           = "uart",
+                .id             = 2,
+                .parent         = &clk_p_low,
+                .enable         = s5p6440_pclk_ctrl,
+                .ctrlbit        = S5P_CLKCON_PCLK_UART2,
+        }, {
+                .name           = "uart",
+                .id             = 3,
+                .parent         = &clk_p_low,
+                .enable         = s5p6440_pclk_ctrl,
+                .ctrlbit        = S5P_CLKCON_PCLK_UART3,
+        }
+};
+
+static struct clk clk_iis_cd_v40 = {
+        .name           = "iis_cdclk_v40",
+        .id             = -1,
+};
+
+static struct clk clk_pcm_cd = {
+        .name           = "pcm_cdclk",
+        .id             = -1,
+};
+
+static struct clk *clkset_spi_mmc_list[] = {
+        &clk_mout_epll.clk,
+        &clk_dout_mpll,
+        &clk_fin_epll,
+};
+
+static struct clksrc_sources clkset_spi_mmc = {
+        .sources        = clkset_spi_mmc_list,
+        .nr_sources     = ARRAY_SIZE(clkset_spi_mmc_list),
+};
+
+static struct clk *clkset_uart_list[] = {
+        &clk_mout_epll.clk,
+        &clk_dout_mpll
+};
+
+static struct clksrc_sources clkset_uart = {
+        .sources        = clkset_uart_list,
+        .nr_sources     = ARRAY_SIZE(clkset_uart_list),
+};
+
+static struct clksrc_clk clksrcs[] = {
+        {
+                .clk    = {
+                        .name           = "mmc_bus",
+                        .id             = 0,
+                        .ctrlbit        = S5P_CLKCON_SCLK0_MMC0,
+                        .enable         = s5p6440_sclk_ctrl,
+                },
+                .sources = &clkset_spi_mmc,
+                .reg_src = { .reg = S5P_CLK_SRC0, .shift = 18, .size = 2 },
+                .reg_div = { .reg = S5P_CLK_DIV1, .shift = 0, .size = 4 },
+        }, {
+                .clk    = {
+                        .name           = "mmc_bus",
+                        .id             = 1,
+                        .ctrlbit        = S5P_CLKCON_SCLK0_MMC1,
+                        .enable         = s5p6440_sclk_ctrl,
+                },
+                .sources = &clkset_spi_mmc,
+                .reg_src = { .reg = S5P_CLK_SRC0, .shift = 20, .size = 2 },
+                .reg_div = { .reg = S5P_CLK_DIV1, .shift = 4, .size = 4 },
+        }, {
+                .clk    = {
+                        .name           = "mmc_bus",
+                        .id             = 2,
+                        .ctrlbit        = S5P_CLKCON_SCLK0_MMC2,
+                        .enable         = s5p6440_sclk_ctrl,
+                },
+                .sources = &clkset_spi_mmc,
+                .reg_src = { .reg = S5P_CLK_SRC0, .shift = 22, .size = 2 },
+                .reg_div = { .reg = S5P_CLK_DIV1, .shift = 8, .size = 4 },
+        }, {
+                .clk    = {
+                        .name           = "uclk1",
+                        .id             = -1,
+                        .ctrlbit        = S5P_CLKCON_SCLK0_UART,
+                        .enable         = s5p6440_sclk_ctrl,
+                },
+                .sources = &clkset_uart,
+                .reg_src = { .reg = S5P_CLK_SRC0, .shift = 13, .size = 1 },
+                .reg_div = { .reg = S5P_CLK_DIV2, .shift = 16, .size = 4 },
+        }, {
+                .clk    = {
+                        .name           = "spi_epll",
+                        .id             = 0,
+                        .ctrlbit        = S5P_CLKCON_SCLK0_SPI0,
+                        .enable         = s5p6440_sclk_ctrl,
+                },
+                .sources = &clkset_spi_mmc,
+                .reg_src = { .reg = S5P_CLK_SRC0, .shift = 14, .size = 2 },
+                .reg_div = { .reg = S5P_CLK_DIV2, .shift = 0, .size = 4 },
+        }, {
+                .clk    = {
+                        .name           = "spi_epll",
+                        .id             = 1,
+                        .ctrlbit        = S5P_CLKCON_SCLK0_SPI1,
+                        .enable         = s5p6440_sclk_ctrl,
+                },
+                .sources = &clkset_spi_mmc,
+                .reg_src = { .reg = S5P_CLK_SRC0, .shift = 16, .size = 2 },
+                .reg_div = { .reg = S5P_CLK_DIV2, .shift = 4, .size = 4 },
+        }
+};
+
+/* Clock initialisation code */
+static struct clksrc_clk *init_parents[] = {
+        &clk_mout_apll,
+        &clk_mout_epll,
+        &clk_mout_mpll,
+};
+
+void __init_or_cpufreq s5p6440_setup_clocks(void)
+{
+        struct clk *xtal_clk;
+        unsigned long xtal;
+        unsigned long fclk;
+        unsigned long hclk;
+        unsigned long hclk_low;
+        unsigned long pclk;
+        unsigned long pclk_low;
+        unsigned long epll;
+        unsigned long apll;
+        unsigned long mpll;
+        unsigned int ptr;
+        u32 clkdiv0;
+        u32 clkdiv3;
+
+        /* Set S5P6440 functions for clk_fout_epll */
+        clk_fout_epll.enable = s5p6440_epll_enable;
+        clk_fout_epll.ops = &s5p6440_epll_ops;
+
+        /* Set S5P6440 functions for arm clock */
+        clk_arm.parent = &clk_mout_apll.clk;
+        clk_arm.ops = &s5p6440_clkarm_ops;
+        clk_48m.enable = s5p6440_clk48m_ctrl;
+
+        clkdiv0 = __raw_readl(S5P_CLK_DIV0);
+        clkdiv3 = __raw_readl(S5P_CLK_DIV3);
+
+        xtal_clk = clk_get(NULL, "ext_xtal");
+        BUG_ON(IS_ERR(xtal_clk));
+
+        xtal = clk_get_rate(xtal_clk);
+        clk_put(xtal_clk);
+
+        epll = s5p_get_pll90xx(xtal, __raw_readl(S5P_EPLL_CON),
+                                __raw_readl(S5P_EPLL_CON_K));
+        mpll = s5p_get_pll45xx(xtal, __raw_readl(S5P_MPLL_CON), pll_4502);
+        apll = s5p_get_pll45xx(xtal, __raw_readl(S5P_APLL_CON), pll_4502);
+
+        printk(KERN_INFO "S5P6440: PLL settings, A=%ld.%ldMHz, M=%ld.%ldMHz," \
+                        " E=%ld.%ldMHz\n",
+                        print_mhz(apll), print_mhz(mpll), print_mhz(epll));
+
+        fclk = apll / GET_DIV(clkdiv0, S5P_CLKDIV0_ARM);
+        hclk = fclk / GET_DIV(clkdiv0, S5P_CLKDIV0_HCLK);
+        pclk = hclk / GET_DIV(clkdiv0, S5P_CLKDIV0_PCLK);
+
+        if (__raw_readl(S5P_OTHERS) & S5P_OTHERS_HCLK_LOW_SEL_MPLL) {
+                /* Asynchronous mode */
+                hclk_low = mpll / GET_DIV(clkdiv3, S5P_CLKDIV3_HCLK_LOW);
+        } else {
+                /* Synchronous mode */
+                hclk_low = apll / GET_DIV(clkdiv3, S5P_CLKDIV3_HCLK_LOW);
+        }
+
+        pclk_low = hclk_low / GET_DIV(clkdiv3, S5P_CLKDIV3_PCLK_LOW);
+
+        printk(KERN_INFO "S5P6440: HCLK=%ld.%ldMHz, HCLK_LOW=%ld.%ldMHz," \
+                        " PCLK=%ld.%ldMHz, PCLK_LOW=%ld.%ldMHz\n",
+                        print_mhz(hclk), print_mhz(hclk_low),
+                        print_mhz(pclk), print_mhz(pclk_low));
+
+        clk_fout_mpll.rate = mpll;
+        clk_fout_epll.rate = epll;
+        clk_fout_apll.rate = apll;
+
+        clk_f.rate = fclk;
+        clk_h.rate = hclk;
+        clk_p.rate = pclk;
+        clk_h_low.rate = hclk_low;
+        clk_p_low.rate = pclk_low;
+
+        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);
+}
+
+static struct clk *clks[] __initdata = {
+        &clk_ext,
+        &clk_mout_epll.clk,
+        &clk_mout_mpll.clk,
+        &clk_dout_mpll,
+        &clk_iis_cd_v40,
+        &clk_pcm_cd,
+        &clk_p_low,
+        &clk_h_low,
+};
+
+void __init s5p6440_register_clocks(void)
+{
+        struct clk *clkp;
+        int ret;
+        int ptr;
+
+        ret = s3c24xx_register_clocks(clks, ARRAY_SIZE(clks));
+        if (ret > 0)
+                printk(KERN_ERR "Failed to register %u clocks\n", ret);
+
+        s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs));
+        s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks));
+
+        clkp = init_clocks_disable;
+        for (ptr = 0; ptr < ARRAY_SIZE(init_clocks_disable); ptr++, clkp++) {
+
+                ret = s3c24xx_register_clock(clkp);
+                if (ret < 0) {
+                        printk(KERN_ERR "Failed to register clock %s (%d)\n",
+                               clkp->name, ret);
+                }
+                (clkp->enable)(clkp, 0);
+        }
+
+        s3c_pwmclk_init();
+}
diff --git a/arch/arm/mach-s5p6440/cpu.c b/arch/arm/mach-s5p6440/cpu.c
new file mode 100644
index 000000000000..1794131aeacb
--- /dev/null
+++ b/arch/arm/mach-s5p6440/cpu.c
@@ -0,0 +1,114 @@
+/* linux/arch/arm/mach-s5p6440/cpu.c
+ *
+ * Copyright (c) 2009 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/s5p6440.h>
+
+static void s5p6440_idle(void)
+{
+        unsigned long val;
+
+        if (!need_resched()) {
+                val = __raw_readl(S5P_PWR_CFG);
+                val &= ~(0x3<<5);
+                val |= (0x1<<5);
+                __raw_writel(val, S5P_PWR_CFG);
+
+                cpu_do_idle();
+        }
+        local_irq_enable();
+}
+
+/* s5p6440_map_io
+ *
+ * register the standard cpu IO areas
+*/
+
+void __init s5p6440_map_io(void)
+{
+        /* initialize any device information early */
+}
+
+void __init s5p6440_init_clocks(int xtal)
+{
+        printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
+
+        s3c24xx_register_baseclocks(xtal);
+        s5p_register_clocks(xtal);
+        s5p6440_register_clocks();
+        s5p6440_setup_clocks();
+}
+
+void __init s5p6440_init_irq(void)
+{
+        /* S5P6440 supports only 2 VIC */
+        u32 vic[2];
+
+        /*
+         * VIC0 is missing IRQ_VIC0[3, 4, 8, 10, (12-22)]
+         * VIC1 is missing IRQ VIC1[1, 3, 4, 10, 11, 12, 14, 15, 22]
+         */
+        vic[0] = 0xff800ae7;
+        vic[1] = 0xffbf23e5;
+
+        s5p_init_irq(vic, ARRAY_SIZE(vic));
+}
+
+static struct sysdev_class s5p6440_sysclass = {
+        .name   = "s5p6440-core",
+};
+
+static struct sys_device s5p6440_sysdev = {
+        .cls    = &s5p6440_sysclass,
+};
+
+static int __init s5p6440_core_init(void)
+{
+        return sysdev_class_register(&s5p6440_sysclass);
+}
+
+core_initcall(s5p6440_core_init);
+
+int __init s5p6440_init(void)
+{
+        printk(KERN_INFO "S5P6440: Initializing architecture\n");
+
+        /* set idle function */
+        pm_idle = s5p6440_idle;
+
+        return sysdev_register(&s5p6440_sysdev);
+}
diff --git a/arch/arm/mach-s5p6440/gpio.c b/arch/arm/mach-s5p6440/gpio.c
new file mode 100644
index 000000000000..b0ea741177ad
--- /dev/null
+++ b/arch/arm/mach-s5p6440/gpio.c
@@ -0,0 +1,322 @@
+/* arch/arm/mach-s5p6440/gpio.c
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *              http://www.samsung.com/
+ *
+ * S5P6440 - GPIOlib 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/kernel.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+#include <mach/map.h>
+#include <mach/gpio.h>
+#include <mach/regs-gpio.h>
+#include <plat/gpio-core.h>
+#include <plat/gpio-cfg.h>
+#include <plat/gpio-cfg-helpers.h>
+
+/* GPIO bank summary:
+*
+* Bank  GPIOs   Style   SlpCon  ExtInt Group
+* A     6       4Bit    Yes     1
+* B     7       4Bit    Yes     1
+* C     8       4Bit    Yes     2
+* F     2       2Bit    Yes     4 [1]
+* G     7       4Bit    Yes     5
+* H     10      4Bit[2] Yes     6
+* I     16      2Bit    Yes     None
+* J     12      2Bit    Yes     None
+* N     16      2Bit    No      IRQ_EINT
+* P     8       2Bit    Yes     8
+* R     15      4Bit[2] Yes     8
+*
+* [1] BANKF pins 14,15 do not form part of the external interrupt sources
+* [2] BANK has two control registers, GPxCON0 and GPxCON1
+*/
+
+static int s5p6440_gpiolib_rbank_4bit2_input(struct gpio_chip *chip,
+                                             unsigned int offset)
+{
+        struct s3c_gpio_chip *ourchip = to_s3c_gpio(chip);
+        void __iomem *base = ourchip->base;
+        void __iomem *regcon = base;
+        unsigned long con;
+
+        switch (offset) {
+        case 6:
+                offset += 1;
+        case 0:
+        case 1:
+        case 2:
+        case 3:
+        case 4:
+        case 5:
+                regcon -= 4;
+                break;
+        default:
+                offset -= 7;
+                break;
+        }
+
+        con = __raw_readl(regcon);
+        con &= ~(0xf << con_4bit_shift(offset));
+        __raw_writel(con, regcon);
+
+        return 0;
+}
+
+static int s5p6440_gpiolib_rbank_4bit2_output(struct gpio_chip *chip,
+                                              unsigned int offset, int value)
+{
+        struct s3c_gpio_chip *ourchip = to_s3c_gpio(chip);
+        void __iomem *base = ourchip->base;
+        void __iomem *regcon = base;
+        unsigned long con;
+        unsigned long dat;
+        unsigned con_offset  = offset;
+
+        switch (con_offset) {
+        case 6:
+                con_offset += 1;
+        case 0:
+        case 1:
+        case 2:
+        case 3:
+        case 4:
+        case 5:
+                regcon -= 4;
+                break;
+        default:
+                con_offset -= 7;
+                break;
+        }
+
+        con = __raw_readl(regcon);
+        con &= ~(0xf << con_4bit_shift(con_offset));
+        con |= 0x1 << con_4bit_shift(con_offset);
+
+        dat = __raw_readl(base + GPIODAT_OFF);
+        if (value)
+                dat |= 1 << offset;
+        else
+                dat &= ~(1 << offset);
+
+        __raw_writel(con, regcon);
+        __raw_writel(dat, base + GPIODAT_OFF);
+
+        return 0;
+}
+
+int s5p6440_gpio_setcfg_4bit_rbank(struct s3c_gpio_chip *chip,
+                                   unsigned int off, unsigned int cfg)
+{
+        void __iomem *reg = chip->base;
+        unsigned int shift;
+        u32 con;
+
+        switch (off) {
+        case 0:
+        case 1:
+        case 2:
+        case 3:
+        case 4:
+        case 5:
+                shift = (off & 7) * 4;
+                reg -= 4;
+                break;
+        case 6:
+                shift = ((off + 1) & 7) * 4;
+                reg -= 4;
+        default:
+                shift = ((off + 1) & 7) * 4;
+                break;
+        }
+
+        if (s3c_gpio_is_cfg_special(cfg)) {
+                cfg &= 0xf;
+                cfg <<= shift;
+        }
+
+        con = __raw_readl(reg);
+        con &= ~(0xf << shift);
+        con |= cfg;
+        __raw_writel(con, reg);
+
+        return 0;
+}
+
+static struct s3c_gpio_cfg s5p6440_gpio_cfgs[] = {
+        {
+                .cfg_eint       = 0,
+        }, {
+                .cfg_eint       = 7,
+        }, {
+                .cfg_eint       = 3,
+                .set_config     = s5p6440_gpio_setcfg_4bit_rbank,
+        }, {
+                .cfg_eint       = 0,
+                .set_config     = s3c_gpio_setcfg_s3c24xx,
+        }, {
+                .cfg_eint       = 2,
+                .set_config     = s3c_gpio_setcfg_s3c24xx,
+        }, {
+                .cfg_eint       = 3,
+                .set_config     = s3c_gpio_setcfg_s3c24xx,
+        },
+};
+
+static struct s3c_gpio_chip s5p6440_gpio_4bit[] = {
+        {
+                .base   = S5P6440_GPA_BASE,
+                .config = &s5p6440_gpio_cfgs[1],
+                .chip   = {
+                        .base   = S5P6440_GPA(0),
+                        .ngpio  = S5P6440_GPIO_A_NR,
+                        .label  = "GPA",
+                },
+        }, {
+                .base   = S5P6440_GPB_BASE,
+                .config = &s5p6440_gpio_cfgs[1],
+                .chip   = {
+                        .base   = S5P6440_GPB(0),
+                        .ngpio  = S5P6440_GPIO_B_NR,
+                        .label  = "GPB",
+                },
+        }, {
+                .base   = S5P6440_GPC_BASE,
+                .config = &s5p6440_gpio_cfgs[1],
+                .chip   = {
+                        .base   = S5P6440_GPC(0),
+                        .ngpio  = S5P6440_GPIO_C_NR,
+                        .label  = "GPC",
+                },
+        }, {
+                .base   = S5P6440_GPG_BASE,
+                .config = &s5p6440_gpio_cfgs[1],
+                .chip   = {
+                        .base   = S5P6440_GPG(0),
+                        .ngpio  = S5P6440_GPIO_G_NR,
+                        .label  = "GPG",
+                },
+        },
+};
+
+static struct s3c_gpio_chip s5p6440_gpio_4bit2[] = {
+        {
+                .base   = S5P6440_GPH_BASE + 0x4,
+                .config = &s5p6440_gpio_cfgs[1],
+                .chip   = {
+                        .base   = S5P6440_GPH(0),
+                        .ngpio  = S5P6440_GPIO_H_NR,
+                        .label  = "GPH",
+                },
+        },
+};
+
+static struct s3c_gpio_chip gpio_rbank_4bit2[] = {
+        {
+                .base   = S5P6440_GPR_BASE + 0x4,
+                .config = &s5p6440_gpio_cfgs[2],
+                .chip   = {
+                        .base   = S5P6440_GPR(0),
+                        .ngpio  = S5P6440_GPIO_R_NR,
+                        .label  = "GPR",
+                },
+        },
+};
+
+static struct s3c_gpio_chip s5p6440_gpio_2bit[] = {
+        {
+                .base   = S5P6440_GPF_BASE,
+                .config = &s5p6440_gpio_cfgs[5],
+                .chip   = {
+                        .base   = S5P6440_GPF(0),
+                        .ngpio  = S5P6440_GPIO_F_NR,
+                        .label  = "GPF",
+                },
+        }, {
+                .base   = S5P6440_GPI_BASE,
+                .config = &s5p6440_gpio_cfgs[3],
+                .chip   = {
+                        .base   = S5P6440_GPI(0),
+                        .ngpio  = S5P6440_GPIO_I_NR,
+                        .label  = "GPI",
+                },
+        }, {
+                .base   = S5P6440_GPJ_BASE,
+                .config = &s5p6440_gpio_cfgs[3],
+                .chip   = {
+                        .base   = S5P6440_GPJ(0),
+                        .ngpio  = S5P6440_GPIO_J_NR,
+                        .label  = "GPJ",
+                },
+        }, {
+                .base   = S5P6440_GPN_BASE,
+                .config = &s5p6440_gpio_cfgs[4],
+                .chip   = {
+                        .base   = S5P6440_GPN(0),
+                        .ngpio  = S5P6440_GPIO_N_NR,
+                        .label  = "GPN",
+                },
+        }, {
+                .base   = S5P6440_GPP_BASE,
+                .config = &s5p6440_gpio_cfgs[5],
+                .chip   = {
+                        .base   = S5P6440_GPP(0),
+                        .ngpio  = S5P6440_GPIO_P_NR,
+                        .label  = "GPP",
+                },
+        },
+};
+
+void __init s5p6440_gpiolib_set_cfg(struct s3c_gpio_cfg *chipcfg, int nr_chips)
+{
+        for (; nr_chips > 0; nr_chips--, chipcfg++) {
+                if (!chipcfg->set_config)
+                        chipcfg->set_config     = s3c_gpio_setcfg_s3c64xx_4bit;
+                if (!chipcfg->set_pull)
+                        chipcfg->set_pull       = s3c_gpio_setpull_updown;
+                if (!chipcfg->get_pull)
+                        chipcfg->get_pull       = s3c_gpio_getpull_updown;
+        }
+}
+
+static void __init s5p6440_gpio_add_rbank_4bit2(struct s3c_gpio_chip *chip,
+                                                int nr_chips)
+{
+        for (; nr_chips > 0; nr_chips--, chip++) {
+                chip->chip.direction_input = s5p6440_gpiolib_rbank_4bit2_input;
+                chip->chip.direction_output =
+                                        s5p6440_gpiolib_rbank_4bit2_output;
+                s3c_gpiolib_add(chip);
+        }
+}
+
+static int __init s5p6440_gpiolib_init(void)
+{
+        struct s3c_gpio_chip *chips = s5p6440_gpio_2bit;
+        int nr_chips = ARRAY_SIZE(s5p6440_gpio_2bit);
+
+        s5p6440_gpiolib_set_cfg(s5p6440_gpio_cfgs,
+                                ARRAY_SIZE(s5p6440_gpio_cfgs));
+
+        for (; nr_chips > 0; nr_chips--, chips++)
+                s3c_gpiolib_add(chips);
+
+        samsung_gpiolib_add_4bit_chips(s5p6440_gpio_4bit,
+                                ARRAY_SIZE(s5p6440_gpio_4bit));
+
+        samsung_gpiolib_add_4bit2_chips(s5p6440_gpio_4bit2,
+                                ARRAY_SIZE(s5p6440_gpio_4bit2));
+
+        s5p6440_gpio_add_rbank_4bit2(gpio_rbank_4bit2,
+                                ARRAY_SIZE(gpio_rbank_4bit2));
+
+        return 0;
+}
+arch_initcall(s5p6440_gpiolib_init);
diff --git a/arch/arm/mach-s5p6440/include/mach/debug-macro.S b/arch/arm/mach-s5p6440/include/mach/debug-macro.S
new file mode 100644
index 000000000000..1347d7f99079
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/debug-macro.S
@@ -0,0 +1,37 @@
+/* linux/arch/arm/mach-s5p6440/include/mach/debug-macro.S
+ *
+ * Copyright (c) 2009 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.
+*/
+
+/* pull in the relevant register and map files. */
+
+#include <mach/map.h>
+#include <plat/regs-serial.h>
+
+        /* note, for the boot process to work we have to keep the UART
+         * virtual address aligned to an 1MiB boundary for the L1
+         * mapping the head code makes. We keep the UART virtual address
+         * aligned and add in the offset when we load the value here.
+         */
+
+        .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
+
+/* 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-s5p6440/include/mach/entry-macro.S b/arch/arm/mach-s5p6440/include/mach/entry-macro.S
new file mode 100644
index 000000000000..e65f1b967262
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/entry-macro.S
@@ -0,0 +1,16 @@
+/* linux/arch/arm/mach-s5p6440/include/mach/entry-macro.S
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *              http://www.samsung.com/
+ *
+ * Low-level IRQ helper macros for the Samsung S5P6440
+ *
+ * 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 <mach/map.h>
+#include <plat/irqs.h>
+
+#include <asm/entry-macro-vic2.S>
diff --git a/arch/arm/mach-s5p6440/include/mach/gpio.h b/arch/arm/mach-s5p6440/include/mach/gpio.h
new file mode 100644
index 000000000000..21783834f2a2
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/gpio.h
@@ -0,0 +1,80 @@
+/* linux/arch/arm/mach-s5p6440/include/mach/gpio.h
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *              http://www.samsung.com/
+ *
+ * S5P6440 - 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 S5P6440_GPIO_A_NR       (6)
+#define S5P6440_GPIO_B_NR       (7)
+#define S5P6440_GPIO_C_NR       (8)
+#define S5P6440_GPIO_F_NR       (2)
+#define S5P6440_GPIO_G_NR       (7)
+#define S5P6440_GPIO_H_NR       (10)
+#define S5P6440_GPIO_I_NR       (16)
+#define S5P6440_GPIO_J_NR       (12)
+#define S5P6440_GPIO_N_NR       (16)
+#define S5P6440_GPIO_P_NR       (8)
+#define S5P6440_GPIO_R_NR       (15)
+
+/* 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 S5P6440_GPIO_NEXT(__gpio) \
+        ((__gpio##_START) + (__gpio##_NR) + CONFIG_S3C_GPIO_SPACE + 1)
+
+enum s5p_gpio_number {
+        S5P6440_GPIO_A_START = 0,
+        S5P6440_GPIO_B_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_A),
+        S5P6440_GPIO_C_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_B),
+        S5P6440_GPIO_F_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_C),
+        S5P6440_GPIO_G_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_F),
+        S5P6440_GPIO_H_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_G),
+        S5P6440_GPIO_I_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_H),
+        S5P6440_GPIO_J_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_I),
+        S5P6440_GPIO_N_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_J),
+        S5P6440_GPIO_P_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_N),
+        S5P6440_GPIO_R_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_P),
+};
+
+/* S5P6440 GPIO number definitions. */
+#define S5P6440_GPA(_nr)        (S5P6440_GPIO_A_START + (_nr))
+#define S5P6440_GPB(_nr)        (S5P6440_GPIO_B_START + (_nr))
+#define S5P6440_GPC(_nr)        (S5P6440_GPIO_C_START + (_nr))
+#define S5P6440_GPF(_nr)        (S5P6440_GPIO_F_START + (_nr))
+#define S5P6440_GPG(_nr)        (S5P6440_GPIO_G_START + (_nr))
+#define S5P6440_GPH(_nr)        (S5P6440_GPIO_H_START + (_nr))
+#define S5P6440_GPI(_nr)        (S5P6440_GPIO_I_START + (_nr))
+#define S5P6440_GPJ(_nr)        (S5P6440_GPIO_J_START + (_nr))
+#define S5P6440_GPN(_nr)        (S5P6440_GPIO_N_START + (_nr))
+#define S5P6440_GPP(_nr)        (S5P6440_GPIO_P_START + (_nr))
+#define S5P6440_GPR(_nr)        (S5P6440_GPIO_R_START + (_nr))
+
+/* the end of the S5P6440 specific gpios */
+#define S5P6440_GPIO_END        (S5P6440_GPR(S5P6440_GPIO_R_NR) + 1)
+#define S3C_GPIO_END            S5P6440_GPIO_END
+
+/* define the number of gpios we need to the one after the GPR() range */
+#define ARCH_NR_GPIOS           (S5P6440_GPR(S5P6440_GPIO_R_NR) +       \
+                                 CONFIG_SAMSUNG_GPIO_EXTRA + 1)
+
+#include <asm-generic/gpio.h>
+
+#endif /* __ASM_ARCH_GPIO_H */
diff --git a/arch/arm/mach-s5p6440/include/mach/hardware.h b/arch/arm/mach-s5p6440/include/mach/hardware.h
new file mode 100644
index 000000000000..be8b26e875db
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/hardware.h
@@ -0,0 +1,18 @@
+/* linux/arch/arm/mach-s5p6440/include/mach/hardware.h
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *              http://www.samsung.com/
+ *
+ * S5P6440 - 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-s5p6440/include/mach/io.h b/arch/arm/mach-s5p6440/include/mach/io.h
new file mode 100644
index 000000000000..fa2d69cb1ad7
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/io.h
@@ -0,0 +1,18 @@
+/* arch/arm/mach-s5p6440/include/mach/io.h
+ *
+ * Copyright 2008 Simtec Electronics
+ *      Ben Dooks <ben-linux@fluff.org>
+ *
+ * Default IO routines for S3C64XX based
+ */
+
+#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-s5p6440/include/mach/irqs.h b/arch/arm/mach-s5p6440/include/mach/irqs.h
new file mode 100644
index 000000000000..a4b9b40d18f2
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/irqs.h
@@ -0,0 +1,111 @@
+/* linux/arch/arm/mach-s5p6440/include/mach/irqs.h
+ *
+ * Copyright 2009 Samsung Electronics Co., Ltd.
+ *              http://www.samsung.com/
+ *
+ * S5P6440 - 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_S5P_IRQS_H
+#define __ASM_ARCH_S5P_IRQS_H __FILE__
+
+#include <plat/irqs.h>
+
+/* VIC0 */
+
+#define IRQ_EINT0_3             S5P_IRQ_VIC0(0)
+#define IRQ_EINT4_11            S5P_IRQ_VIC0(1)
+#define IRQ_RTC_TIC             S5P_IRQ_VIC0(2)
+#define IRQ_IIC1                S5P_IRQ_VIC0(5)
+#define IRQ_I2SV40              S5P_IRQ_VIC0(6)
+#define IRQ_GPS                 S5P_IRQ_VIC0(7)
+#define IRQ_POST0               S5P_IRQ_VIC0(9)
+#define IRQ_2D                  S5P_IRQ_VIC0(11)
+#define IRQ_TIMER0_VIC          S5P_IRQ_VIC0(23)
+#define IRQ_TIMER1_VIC          S5P_IRQ_VIC0(24)
+#define IRQ_TIMER2_VIC          S5P_IRQ_VIC0(25)
+#define IRQ_WDT                 S5P_IRQ_VIC0(26)
+#define IRQ_TIMER3_VIC          S5P_IRQ_VIC0(27)
+#define IRQ_TIMER4_VIC          S5P_IRQ_VIC0(28)
+#define IRQ_DISPCON0            S5P_IRQ_VIC0(29)
+#define IRQ_DISPCON1            S5P_IRQ_VIC0(30)
+#define IRQ_DISPCON2            S5P_IRQ_VIC0(31)
+
+/* VIC1 */
+
+#define IRQ_EINT12_15           S5P_IRQ_VIC1(0)
+#define IRQ_PCM0                S5P_IRQ_VIC1(2)
+#define IRQ_UART0               S5P_IRQ_VIC1(5)
+#define IRQ_UART1               S5P_IRQ_VIC1(6)
+#define IRQ_UART2               S5P_IRQ_VIC1(7)
+#define IRQ_UART3               S5P_IRQ_VIC1(8)
+#define IRQ_DMA0                S5P_IRQ_VIC1(9)
+#define IRQ_NFC                 S5P_IRQ_VIC1(13)
+#define IRQ_SPI0                S5P_IRQ_VIC1(16)
+#define IRQ_SPI1                S5P_IRQ_VIC1(17)
+#define IRQ_IIC                 S5P_IRQ_VIC1(18)
+#define IRQ_DISPCON3            S5P_IRQ_VIC1(19)
+#define IRQ_FIMGVG              S5P_IRQ_VIC1(20)
+#define IRQ_EINT_GROUPS         S5P_IRQ_VIC1(21)
+#define IRQ_PMUIRQ              S5P_IRQ_VIC1(23)
+#define IRQ_HSMMC0              S5P_IRQ_VIC1(24)
+#define IRQ_HSMMC1              S5P_IRQ_VIC1(25)
+#define IRQ_HSMMC2              IRQ_SPI1        /* shared with SPI1 */
+#define IRQ_OTG                 S5P_IRQ_VIC1(26)
+#define IRQ_DSI                 S5P_IRQ_VIC1(27)
+#define IRQ_RTC_ALARM           S5P_IRQ_VIC1(28)
+#define IRQ_TSI                 S5P_IRQ_VIC1(29)
+#define IRQ_PENDN               S5P_IRQ_VIC1(30)
+#define IRQ_TC                  IRQ_PENDN
+#define IRQ_ADC                 S5P_IRQ_VIC1(31)
+
+/*
+ * Since the IRQ_EINT(x) are a linear mapping on s5p6440 we just defined
+ * them as an IRQ_EINT(x) macro from S5P_IRQ_EINT_BASE which we place
+ * after the pair of VICs.
+ */
+
+#define S5P_IRQ_EINT_BASE       (S5P_IRQ_VIC1(31) + 6)
+
+#define S5P_EINT(x)             ((x) + S5P_IRQ_EINT_BASE)
+#define IRQ_EINT(x)             S5P_EINT(x)
+
+/*
+ * Next the external interrupt groups. These are similar to the IRQ_EINT(x)
+ * that they are sourced from the GPIO pins but with a different scheme for
+ * priority and source indication.
+ *
+ * The IRQ_EINT(x) can be thought of as 'group 0' of the available GPIO
+ * interrupts, but for historical reasons they are kept apart from these
+ * next interrupts.
+ *
+ * Use IRQ_EINT_GROUP(group, offset) to get the number for use in the
+ * machine specific support files.
+ */
+
+/* Actually, #6 and #7 are missing in the EINT_GROUP1 */
+#define IRQ_EINT_GROUP1_NR      (15)
+#define IRQ_EINT_GROUP2_NR      (8)
+#define IRQ_EINT_GROUP5_NR      (7)
+#define IRQ_EINT_GROUP6_NR      (10)
+/* Actually, #0, #1 and #2 are missing in the EINT_GROUP8 */
+#define IRQ_EINT_GROUP8_NR      (11)
+
+#define IRQ_EINT_GROUP_BASE     S5P_EINT(16)
+#define IRQ_EINT_GROUP1_BASE    (IRQ_EINT_GROUP_BASE + 0)
+#define IRQ_EINT_GROUP2_BASE    (IRQ_EINT_GROUP1_BASE + IRQ_EINT_GROUP1_NR)
+#define IRQ_EINT_GROUP5_BASE    (IRQ_EINT_GROUP2_BASE + IRQ_EINT_GROUP2_NR)
+#define IRQ_EINT_GROUP6_BASE    (IRQ_EINT_GROUP5_BASE + IRQ_EINT_GROUP5_NR)
+#define IRQ_EINT_GROUP8_BASE    (IRQ_EINT_GROUP6_BASE + IRQ_EINT_GROUP6_NR)
+
+#define IRQ_EINT_GROUP(grp, x)  (IRQ_EINT_GROUP##grp##_BASE + (x))
+
+/* Set the default NR_IRQS */
+
+#define NR_IRQS                 (IRQ_EINT_GROUP8_BASE + IRQ_EINT_GROUP8_NR + 1)
+
+#endif /* __ASM_ARCH_S5P_IRQS_H */
diff --git a/arch/arm/mach-s5p6440/include/mach/map.h b/arch/arm/mach-s5p6440/include/mach/map.h
new file mode 100644
index 000000000000..8924e5a4d6a6
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/map.h
@@ -0,0 +1,68 @@
+/* linux/arch/arm/mach-s5p6440/include/mach/map.h
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *              http://www.samsung.com/
+ *
+ * S5P6440 - 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 S5P6440_PA_CHIPID       (0xE0000000)
+#define S5P_PA_CHIPID           S5P6440_PA_CHIPID
+
+#define S5P6440_PA_SYSCON       (0xE0100000)
+#define S5P6440_PA_CLK          (S5P6440_PA_SYSCON + 0x0)
+#define S5P_PA_SYSCON           S5P6440_PA_SYSCON
+
+#define S5P6440_PA_GPIO         (0xE0308000)
+#define S5P_PA_GPIO             S5P6440_PA_GPIO
+
+#define S5P6440_PA_VIC0         (0xE4000000)
+#define S5P_PA_VIC0             S5P6440_PA_VIC0
+
+#define S5P6440_PA_VIC1         (0xE4100000)
+#define S5P_PA_VIC1             S5P6440_PA_VIC1
+
+#define S5P6440_PA_TIMER        (0xEA000000)
+#define S5P_PA_TIMER            S5P6440_PA_TIMER
+
+#define S5P6440_PA_RTC          (0xEA100000)
+#define S5P_PA_RTC              S5P6440_PA_RTC
+
+#define S5P6440_PA_WDT          (0xEA200000)
+#define S5P_PA_WDT              S5P6440_PA_WDT
+
+#define S5P6440_PA_UART         (0xEC000000)
+
+#define S5P_PA_UART0            (S5P6440_PA_UART + 0x0)
+#define S5P_PA_UART1            (S5P6440_PA_UART + 0x400)
+#define S5P_PA_UART2            (S5P6440_PA_UART + 0x800)
+#define S5P_PA_UART3            (S5P6440_PA_UART + 0xC00)
+
+#define S5P_SZ_UART             SZ_256
+
+#define S5P6440_PA_IIC0         (0xEC104000)
+
+#define S5P6440_PA_HSOTG        (0xED100000)
+
+#define S5P6440_PA_HSMMC0       (0xED800000)
+#define S5P6440_PA_HSMMC1       (0xED900000)
+#define S5P6440_PA_HSMMC2       (0xEDA00000)
+
+#define S5P6440_PA_SDRAM        (0x20000000)
+#define S5P_PA_SDRAM            S5P6440_PA_SDRAM
+
+/* compatibiltiy defines. */
+#define S3C_PA_UART             S5P6440_PA_UART
+#define S3C_PA_IIC              S5P6440_PA_IIC0
+
+#endif /* __ASM_ARCH_MAP_H */
diff --git a/arch/arm/mach-s5p6440/include/mach/memory.h b/arch/arm/mach-s5p6440/include/mach/memory.h
new file mode 100644
index 000000000000..d62910c71b56
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/memory.h
@@ -0,0 +1,19 @@
+/* linux/arch/arm/mach-s5p6440/include/mach/memory.h
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *              http://www.samsung.com/
+ *
+ * S5P6440 - 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-s5p6440/include/mach/pwm-clock.h b/arch/arm/mach-s5p6440/include/mach/pwm-clock.h
new file mode 100644
index 000000000000..c4bb7c555477
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/pwm-clock.h
@@ -0,0 +1,62 @@
+/* linux/arch/arm/mach-s5p6440/include/mach/pwm-clock.h
+ *
+ * Copyright 2008 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *      http://armlinux.simtec.co.uk/
+ *
+ * Copyright 2009 Samsung Electronics Co., Ltd.
+ *              http://www.samsung.com/
+ *
+ * S5P6440 - 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.
+*/
+
+/**
+ * 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
diff --git a/arch/arm/mach-s5p6440/include/mach/regs-clock.h b/arch/arm/mach-s5p6440/include/mach/regs-clock.h
new file mode 100644
index 000000000000..c783ecc9f193
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/regs-clock.h
@@ -0,0 +1,130 @@
+/* linux/arch/arm/mach-s5p6440/include/mach/regs-clock.h
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *              http://www.samsung.com/
+ *
+ * S5P6440 - 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(0x04)
+#define S5P_EPLL_LOCK           S5P_CLKREG(0x08)
+#define S5P_APLL_CON            S5P_CLKREG(0x0C)
+#define S5P_MPLL_CON            S5P_CLKREG(0x10)
+#define S5P_EPLL_CON            S5P_CLKREG(0x14)
+#define S5P_EPLL_CON_K          S5P_CLKREG(0x18)
+#define S5P_CLK_SRC0            S5P_CLKREG(0x1C)
+#define S5P_CLK_DIV0            S5P_CLKREG(0x20)
+#define S5P_CLK_DIV1            S5P_CLKREG(0x24)
+#define S5P_CLK_DIV2            S5P_CLKREG(0x28)
+#define S5P_CLK_OUT             S5P_CLKREG(0x2C)
+#define S5P_CLK_GATE_HCLK0      S5P_CLKREG(0x30)
+#define S5P_CLK_GATE_PCLK       S5P_CLKREG(0x34)
+#define S5P_CLK_GATE_SCLK0      S5P_CLKREG(0x38)
+#define S5P_CLK_GATE_MEM0       S5P_CLKREG(0x3C)
+#define S5P_CLK_DIV3            S5P_CLKREG(0x40)
+#define S5P_CLK_GATE_HCLK1      S5P_CLKREG(0x44)
+#define S5P_CLK_GATE_SCLK1      S5P_CLKREG(0x48)
+#define S5P_AHB_CON0            S5P_CLKREG(0x100)
+#define S5P_CLK_SRC1            S5P_CLKREG(0x10C)
+#define S5P_SWRESET             S5P_CLKREG(0x114)
+#define S5P_SYS_ID              S5P_CLKREG(0x118)
+#define S5P_SYS_OTHERS          S5P_CLKREG(0x11C)
+#define S5P_MEM_CFG_STAT        S5P_CLKREG(0x12C)
+#define S5P_PWR_CFG             S5P_CLKREG(0x804)
+#define S5P_EINT_WAKEUP_MASK    S5P_CLKREG(0x808)
+#define S5P_NORMAL_CFG          S5P_CLKREG(0x810)
+#define S5P_STOP_CFG            S5P_CLKREG(0x814)
+#define S5P_SLEEP_CFG           S5P_CLKREG(0x818)
+#define S5P_OSC_FREQ            S5P_CLKREG(0x820)
+#define S5P_OSC_STABLE          S5P_CLKREG(0x824)
+#define S5P_PWR_STABLE          S5P_CLKREG(0x828)
+#define S5P_MTC_STABLE          S5P_CLKREG(0x830)
+#define S5P_OTHERS              S5P_CLKREG(0x900)
+#define S5P_RST_STAT            S5P_CLKREG(0x904)
+#define S5P_WAKEUP_STAT         S5P_CLKREG(0x908)
+#define S5P_SLPEN               S5P_CLKREG(0x930)
+#define S5P_INFORM0             S5P_CLKREG(0xA00)
+#define S5P_INFORM1             S5P_CLKREG(0xA04)
+#define S5P_INFORM2             S5P_CLKREG(0xA08)
+#define S5P_INFORM3             S5P_CLKREG(0xA0C)
+
+/* CLKDIV0 */
+#define S5P_CLKDIV0_PCLK_MASK           (0xf << 12)
+#define S5P_CLKDIV0_PCLK_SHIFT          (12)
+#define S5P_CLKDIV0_HCLK_MASK           (0xf << 8)
+#define S5P_CLKDIV0_HCLK_SHIFT          (8)
+#define S5P_CLKDIV0_MPLL_MASK           (0x1 << 4)
+#define S5P_CLKDIV0_ARM_MASK            (0xf << 0)
+#define S5P_CLKDIV0_ARM_SHIFT           (0)
+
+/* CLKDIV3 */
+#define S5P_CLKDIV3_PCLK_LOW_MASK       (0xf << 12)
+#define S5P_CLKDIV3_PCLK_LOW_SHIFT      (12)
+#define S5P_CLKDIV3_HCLK_LOW_MASK       (0xf << 8)
+#define S5P_CLKDIV3_HCLK_LOW_SHIFT      (8)
+
+/* HCLK0 GATE Registers */
+#define S5P_CLKCON_HCLK0_USB            (1<<20)
+#define S5P_CLKCON_HCLK0_HSMMC2         (1<<19)
+#define S5P_CLKCON_HCLK0_HSMMC1         (1<<18)
+#define S5P_CLKCON_HCLK0_HSMMC0         (1<<17)
+#define S5P_CLKCON_HCLK0_POST0          (1<<5)
+
+/* HCLK1 GATE Registers */
+#define S5P_CLKCON_HCLK1_DISPCON        (1<<1)
+
+/* PCLK GATE Registers */
+#define S5P_CLKCON_PCLK_IIS2            (1<<26)
+#define S5P_CLKCON_PCLK_SPI1            (1<<22)
+#define S5P_CLKCON_PCLK_SPI0            (1<<21)
+#define S5P_CLKCON_PCLK_GPIO            (1<<18)
+#define S5P_CLKCON_PCLK_IIC0            (1<<17)
+#define S5P_CLKCON_PCLK_TSADC           (1<<12)
+#define S5P_CLKCON_PCLK_PWM             (1<<7)
+#define S5P_CLKCON_PCLK_RTC             (1<<6)
+#define S5P_CLKCON_PCLK_WDT             (1<<5)
+#define S5P_CLKCON_PCLK_UART3           (1<<4)
+#define S5P_CLKCON_PCLK_UART2           (1<<3)
+#define S5P_CLKCON_PCLK_UART1           (1<<2)
+#define S5P_CLKCON_PCLK_UART0           (1<<1)
+
+/* SCLK0 GATE Registers */
+#define S5P_CLKCON_SCLK0_MMC2_48        (1<<29)
+#define S5P_CLKCON_SCLK0_MMC1_48        (1<<28)
+#define S5P_CLKCON_SCLK0_MMC0_48        (1<<27)
+#define S5P_CLKCON_SCLK0_MMC2           (1<<26)
+#define S5P_CLKCON_SCLK0_MMC1           (1<<25)
+#define S5P_CLKCON_SCLK0_MMC0           (1<<24)
+#define S5P_CLKCON_SCLK0_SPI1_48        (1<<23)
+#define S5P_CLKCON_SCLK0_SPI0_48        (1<<22)
+#define S5P_CLKCON_SCLK0_SPI1           (1<<21)
+#define S5P_CLKCON_SCLK0_SPI0           (1<<20)
+#define S5P_CLKCON_SCLK0_UART           (1<<5)
+
+/* SCLK1 GATE Registers */
+
+/* MEM0 GATE Registers */
+#define S5P_CLKCON_MEM0_HCLK_NFCON      (1<<2)
+
+/*OTHERS Resgister */
+#define S5P_OTHERS_USB_SIG_MASK         (1<<16)
+#define S5P_OTHERS_HCLK_LOW_SEL_MPLL    (1<<6)
+
+/* Compatibility defines */
+#define ARM_CLK_DIV                     S5P_CLK_DIV0
+#define ARM_DIV_RATIO_SHIFT             0
+#define ARM_DIV_MASK                    (0xf << ARM_DIV_RATIO_SHIFT)
+
+#endif /* __ASM_ARCH_REGS_CLOCK_H */
diff --git a/arch/arm/mach-s5p6440/include/mach/regs-gpio.h b/arch/arm/mach-s5p6440/include/mach/regs-gpio.h
new file mode 100644
index 000000000000..82ff753913da
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/regs-gpio.h
@@ -0,0 +1,54 @@
+/* linux/arch/arm/mach-s5p6440/include/mach/regs-gpio.h
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *              http://www.samsung.com/
+ *
+ * S5P6440 - GPIO 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_GPIO_H
+#define __ASM_ARCH_REGS_GPIO_H __FILE__
+
+#include <mach/map.h>
+
+/* Base addresses for each of the banks */
+#define S5P6440_GPA_BASE                (S5P_VA_GPIO + 0x0000)
+#define S5P6440_GPB_BASE                (S5P_VA_GPIO + 0x0020)
+#define S5P6440_GPC_BASE                (S5P_VA_GPIO + 0x0040)
+#define S5P6440_GPF_BASE                (S5P_VA_GPIO + 0x00A0)
+#define S5P6440_GPG_BASE                (S5P_VA_GPIO + 0x00C0)
+#define S5P6440_GPH_BASE                (S5P_VA_GPIO + 0x00E0)
+#define S5P6440_GPI_BASE                (S5P_VA_GPIO + 0x0100)
+#define S5P6440_GPJ_BASE                (S5P_VA_GPIO + 0x0120)
+#define S5P6440_GPN_BASE                (S5P_VA_GPIO + 0x0830)
+#define S5P6440_GPP_BASE                (S5P_VA_GPIO + 0x0160)
+#define S5P6440_GPR_BASE                (S5P_VA_GPIO + 0x0290)
+#define S5P6440_EINT0CON0               (S5P_VA_GPIO + 0x900)
+#define S5P6440_EINT0FLTCON0            (S5P_VA_GPIO + 0x910)
+#define S5P6440_EINT0FLTCON1            (S5P_VA_GPIO + 0x914)
+#define S5P6440_EINT0MASK               (S5P_VA_GPIO + 0x920)
+#define S5P6440_EINT0PEND               (S5P_VA_GPIO + 0x924)
+
+/* for LCD */
+#define S5P6440_SPCON_LCD_SEL_RGB       (1 << 0)
+#define S5P6440_SPCON_LCD_SEL_MASK      (3 << 0)
+
+/* These set of macros are not really useful for the
+ * GPF/GPI/GPJ/GPN/GPP,
+ * useful for others set of GPIO's (4 bit)
+ */
+#define S5P6440_GPIO_CONMASK(__gpio)    (0xf << ((__gpio) * 4))
+#define S5P6440_GPIO_INPUT(__gpio)      (0x0 << ((__gpio) * 4))
+#define S5P6440_GPIO_OUTPUT(__gpio)     (0x1 << ((__gpio) * 4))
+
+/* Use these macros for GPF/GPI/GPJ/GPN/GPP set of GPIO (2 bit)
+ * */
+#define S5P6440_GPIO2_CONMASK(__gpio)   (0x3 << ((__gpio) * 2))
+#define S5P6440_GPIO2_INPUT(__gpio)     (0x0 << ((__gpio) * 2))
+#define S5P6440_GPIO2_OUTPUT(__gpio)    (0x1 << ((__gpio) * 2))
+
+#endif /* __ASM_ARCH_REGS_GPIO_H */
diff --git a/arch/arm/mach-s5p6440/include/mach/regs-irq.h b/arch/arm/mach-s5p6440/include/mach/regs-irq.h
new file mode 100644
index 000000000000..a961f4beeb0c
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/regs-irq.h
@@ -0,0 +1,19 @@
+/* linux/arch/arm/mach-s5p6440/include/mach/regs-irq.h
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *              http://www.samsung.com/
+ *
+ * S5P6440 - 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-s5p6440/include/mach/system.h b/arch/arm/mach-s5p6440/include/mach/system.h
new file mode 100644
index 000000000000..d2dd817da66a
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/system.h
@@ -0,0 +1,26 @@
+/* linux/arch/arm/mach-s5p6440/include/mach/system.h
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *              http://www.samsung.com/
+ *
+ * S5P6440 - 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-s5p6440/include/mach/tick.h b/arch/arm/mach-s5p6440/include/mach/tick.h
new file mode 100644
index 000000000000..2f25c7f07970
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/tick.h
@@ -0,0 +1,24 @@
+/* linux/arch/arm/mach-s5p6440/include/mach/tick.h
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *              http://www.samsung.com/
+ *
+ * S5P6440 - 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-s5p6440/include/mach/timex.h b/arch/arm/mach-s5p6440/include/mach/timex.h
new file mode 100644
index 000000000000..fb2e8cd40829
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/timex.h
@@ -0,0 +1,24 @@
+/* arch/arm/mach-s3c64xx/include/mach/timex.h
+ *
+ * Copyright (c) 2003-2005 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C6400 - 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-s5p6440/include/mach/uncompress.h b/arch/arm/mach-s5p6440/include/mach/uncompress.h
new file mode 100644
index 000000000000..7c1f600d65c0
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/uncompress.h
@@ -0,0 +1,24 @@
+/* linux/arch/arm/mach-s5p6440/include/mach/uncompress.h
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *              http://www.samsung.com/
+ *
+ * S5P6440 - 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-s5p6440/include/mach/vmalloc.h b/arch/arm/mach-s5p6440/include/mach/vmalloc.h
new file mode 100644
index 000000000000..16df257b1dce
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/vmalloc.h
@@ -0,0 +1,17 @@
+/* arch/arm/mach-s5p6440/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.
+ *
+ * S3C6400 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-s5p6440/init.c b/arch/arm/mach-s5p6440/init.c
new file mode 100644
index 000000000000..a1f3727e4021
--- /dev/null
+++ b/arch/arm/mach-s5p6440/init.c
@@ -0,0 +1,52 @@
+/* linux/arch/arm/mach-s5p6440/init.c
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *              http://www.samsung.com/
+ *
+ * S5P6440 - Init 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/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/s5p6440.h>
+#include <plat/regs-serial.h>
+
+static struct s3c24xx_uart_clksrc s5p6440_serial_clocks[] = {
+        [0] = {
+                .name           = "pclk_low",
+                .divisor        = 1,
+                .min_baud       = 0,
+                .max_baud       = 0,
+        },
+        [1] = {
+                .name           = "uclk1",
+                .divisor        = 1,
+                .min_baud       = 0,
+                .max_baud       = 0,
+        },
+};
+
+/* uart registration process */
+void __init s5p6440_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 = s5p6440_serial_clocks;
+                        tcfg->clocks_size = ARRAY_SIZE(s5p6440_serial_clocks);
+                }
+        }
+
+        s3c24xx_init_uartdevs("s3c6400-uart", s5p_uart_resources, cfg, no);
+}
diff --git a/arch/arm/mach-s5p6440/mach-smdk6440.c b/arch/arm/mach-s5p6440/mach-smdk6440.c
new file mode 100644
index 000000000000..3ae88f2c7c77
--- /dev/null
+++ b/arch/arm/mach-s5p6440/mach-smdk6440.c
@@ -0,0 +1,111 @@
+/* linux/arch/arm/mach-s5p6440/mach-smdk6440.c
+ *
+ * Copyright (c) 2009 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/delay.h>
+#include <linux/init.h>
+#include <linux/serial_core.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/clk.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include <mach/hardware.h>
+#include <mach/map.h>
+
+#include <asm/irq.h>
+#include <asm/mach-types.h>
+
+#include <plat/regs-serial.h>
+
+#include <plat/s5p6440.h>
+#include <plat/clock.h>
+#include <mach/regs-clock.h>
+#include <plat/devs.h>
+#include <plat/cpu.h>
+#include <plat/pll.h>
+
+#define S5P6440_UCON_DEFAULT    (S3C2410_UCON_TXILEVEL |        \
+                                S3C2410_UCON_RXILEVEL |         \
+                                S3C2410_UCON_TXIRQMODE |        \
+                                S3C2410_UCON_RXIRQMODE |        \
+                                S3C2410_UCON_RXFIFO_TOI |       \
+                                S3C2443_UCON_RXERR_IRQEN)
+
+#define S5P6440_ULCON_DEFAULT   S3C2410_LCON_CS8
+
+#define S5P6440_UFCON_DEFAULT   (S3C2410_UFCON_FIFOMODE |       \
+                                S3C2440_UFCON_TXTRIG16 |        \
+                                S3C2410_UFCON_RXTRIG8)
+
+static struct s3c2410_uartcfg smdk6440_uartcfgs[] __initdata = {
+        [0] = {
+                .hwport      = 0,
+                .flags       = 0,
+                .ucon        = S5P6440_UCON_DEFAULT,
+                .ulcon       = S5P6440_ULCON_DEFAULT,
+                .ufcon       = S5P6440_UFCON_DEFAULT,
+        },
+        [1] = {
+                .hwport      = 1,
+                .flags       = 0,
+                .ucon        = S5P6440_UCON_DEFAULT,
+                .ulcon       = S5P6440_ULCON_DEFAULT,
+                .ufcon       = S5P6440_UFCON_DEFAULT,
+        },
+        [2] = {
+                .hwport      = 2,
+                .flags       = 0,
+                .ucon        = S5P6440_UCON_DEFAULT,
+                .ulcon       = S5P6440_ULCON_DEFAULT,
+                .ufcon       = S5P6440_UFCON_DEFAULT,
+        },
+        [3] = {
+                .hwport      = 3,
+                .flags       = 0,
+                .ucon        = S5P6440_UCON_DEFAULT,
+                .ulcon       = S5P6440_ULCON_DEFAULT,
+                .ufcon       = S5P6440_UFCON_DEFAULT,
+        },
+};
+
+static struct platform_device *smdk6440_devices[] __initdata = {
+};
+
+static void __init smdk6440_map_io(void)
+{
+        s5p_init_io(NULL, 0, S5P_SYS_ID);
+        s3c24xx_init_clocks(12000000);
+        s3c24xx_init_uarts(smdk6440_uartcfgs, ARRAY_SIZE(smdk6440_uartcfgs));
+}
+
+static void __init smdk6440_machine_init(void)
+{
+        platform_add_devices(smdk6440_devices, ARRAY_SIZE(smdk6440_devices));
+}
+
+MACHINE_START(SMDK6440, "SMDK6440")
+        /* 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       = s5p6440_init_irq,
+        .map_io         = smdk6440_map_io,
+        .init_machine   = smdk6440_machine_init,
+        .timer          = &s3c24xx_timer,
+MACHINE_END