36 files changed, 3575 insertions, 12 deletions

diff --git a/arch/arm/plat-s3c/Kconfig b/arch/arm/plat-s3c/Kconfig
index 31656c33e05e..def0bb457ca3 100644
--- a/arch/arm/plat-s3c/Kconfig
+++ b/arch/arm/plat-s3c/Kconfig
@@ -6,8 +6,8 @@
 
 config PLAT_S3C
         bool
-        depends on ARCH_S3C2410
-        default y if ARCH_S3C2410
+        depends on ARCH_S3C2410 || ARCH_S3C24A0 || ARCH_S3C64XX
+        default y
         select NO_IOPORT
         help
           Base platform code for any Samsung S3C device
@@ -16,24 +16,24 @@ config PLAT_S3C
 
 config CPU_LLSERIAL_S3C2410_ONLY
         bool
-        depends on ARCH_S3C2410
+        depends on PLAT_S3C
         default y if CPU_LLSERIAL_S3C2410 && !CPU_LLSERIAL_S3C2440
 
 config CPU_LLSERIAL_S3C2440_ONLY
         bool
-        depends on ARCH_S3C2410
+        depends on PLAT_S3C
         default y if CPU_LLSERIAL_S3C2440 && !CPU_LLSERIAL_S3C2410
 
 config CPU_LLSERIAL_S3C2410
         bool
-        depends on ARCH_S3C2410
+        depends on PLAT_S3C
         help
           Selected if there is an S3C2410 (or register compatible) serial
           low-level implementation needed
 
 config CPU_LLSERIAL_S3C2440
         bool
-        depends on ARCH_S3C2410
+        depends on PLAT_S3C
         help
           Selected if there is an S3C2440 (or register compatible) serial
           low-level implementation needed
@@ -57,6 +57,14 @@ config S3C_BOOT_ERROR_RESET
           Say y here to use the watchdog to reset the system if the
           kernel decompressor detects an error during decompression.
 
+config S3C_BOOT_UART_FORCE_FIFO
+       bool "Force UART FIFO on during boot process"
+       depends on PLAT_S3C
+       default y
+       help
+         Say Y here to force the UART FIFOs on during the kernel
+         uncompressor
+
 comment "Power management"
 
 config S3C2410_PM_DEBUG
@@ -102,3 +110,73 @@ config S3C_LOWLEVEL_UART_PORT
           such as the `Uncompressing...` at start time. The value of
           this configuration should be between zero and two. The port
           must have been initialised by the boot-loader before use.
+
+# options for gpiolib support
+
+config S3C_GPIO_SPACE
+        int "Space between gpio banks"
+        default 0
+        help
+          Add a number of spare GPIO entries between each bank for debugging
+          purposes. This allows any problems where an counter overflows from
+          one bank to another to be caught, at the expense of using a little
+          more memory.
+
+config S3C_GPIO_TRACK
+        bool
+        help
+          Internal configuration option to enable the s3c specific gpio
+          chip tracking if the platform requires it.
+
+config S3C_GPIO_PULL_UPDOWN
+        bool
+        help
+          Internal configuration to enable the correct GPIO pull helper
+
+config S3C_GPIO_PULL_DOWN
+        bool
+        help
+          Internal configuration to enable the correct GPIO pull helper
+
+config S3C_GPIO_PULL_UP
+        bool
+        help
+          Internal configuration to enable the correct GPIO pull helper
+
+config S3C_GPIO_CFG_S3C24XX
+        bool
+        help
+          Internal configuration to enable S3C24XX style GPIO configuration
+          functions.
+
+config S3C_GPIO_CFG_S3C64XX
+        bool
+        help
+          Internal configuration to enable S3C64XX style GPIO configuration
+          functions.
+
+# device definitions to compile in
+
+config S3C_DEV_HSMMC
+        bool
+        depends on PLAT_S3C
+        help
+          Compile in platform device definitions for HSMMC code
+
+config S3C_DEV_HSMMC1
+        bool
+        depends on PLAT_S3C
+        help
+          Compile in platform device definitions for HSMMC channel 1
+
+config S3C_DEV_I2C1
+        bool
+        depends on PLAT_S3C
+        help
+          Compile in platform device definitions for I2C channel 1
+
+config S3C_DEV_FB
+        bool
+        depends on PLAT_S3C
+        help
+          Compile in platform device definition for framebuffer
diff --git a/arch/arm/plat-s3c/Makefile b/arch/arm/plat-s3c/Makefile
index f03d7b35ba37..39195f972d5e 100644
--- a/arch/arm/plat-s3c/Makefile
+++ b/arch/arm/plat-s3c/Makefile
@@ -1,3 +1,27 @@
-# dummy makefile, currently just including asm/arm/plat-s3c/include/plat
+# arch/arm/plat-s3c/Makefile
+#
+# Copyright 2008 Simtec Electronics
+#
+# Licensed under GPLv2
 
-obj-n   := dummy.o
+obj-y                           :=
+obj-m                           :=
+obj-n                           :=
+obj-                            :=
+
+# Core support for all Samsung SoCs
+
+obj-y                           +=  init.o
+obj-y                           += time.o
+obj-y                           += clock.o
+obj-y                           += pwm-clock.o
+obj-y                           += gpio.o
+obj-y                           += gpio-config.o
+
+# devices
+
+obj-$(CONFIG_S3C_DEV_HSMMC)     += dev-hsmmc.o
+obj-$(CONFIG_S3C_DEV_HSMMC1)    += dev-hsmmc1.o
+obj-y                           += dev-i2c0.o
+obj-$(CONFIG_S3C_DEV_I2C1)      += dev-i2c1.o
+obj-$(CONFIG_S3C_DEV_FB)        += dev-fb.o
diff --git a/arch/arm/plat-s3c/clock.c b/arch/arm/plat-s3c/clock.c
new file mode 100644
index 000000000000..b6be76e2fe51
--- /dev/null
+++ b/arch/arm/plat-s3c/clock.c
@@ -0,0 +1,368 @@
+/* linux/arch/arm/plat-s3c24xx/clock.c
+ *
+ * Copyright (c) 2004-2005 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C24XX Core clock control support
+ *
+ * Based on, and code from linux/arch/arm/mach-versatile/clock.c
+ **
+ **  Copyright (C) 2004 ARM Limited.
+ **  Written by Deep Blue Solutions Limited.
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+#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/platform_device.h>
+#include <linux/sysdev.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/clk.h>
+#include <linux/spinlock.h>
+#include <linux/io.h>
+
+#include <mach/hardware.h>
+#include <asm/irq.h>
+
+#include <plat/cpu-freq.h>
+
+#include <plat/clock.h>
+#include <plat/cpu.h>
+
+/* clock information */
+
+static LIST_HEAD(clocks);
+
+/* We originally used an mutex here, but some contexts (see resume)
+ * are calling functions such as clk_set_parent() with IRQs disabled
+ * causing an BUG to be triggered.
+ */
+DEFINE_SPINLOCK(clocks_lock);
+
+/* enable and disable calls for use with the clk struct */
+
+static int clk_null_enable(struct clk *clk, int enable)
+{
+        return 0;
+}
+
+/* Clock API calls */
+
+struct clk *clk_get(struct device *dev, const char *id)
+{
+        struct clk *p;
+        struct clk *clk = ERR_PTR(-ENOENT);
+        int idno;
+
+        if (dev == NULL || dev->bus != &platform_bus_type)
+                idno = -1;
+        else
+                idno = to_platform_device(dev)->id;
+
+        spin_lock(&clocks_lock);
+
+        list_for_each_entry(p, &clocks, list) {
+                if (p->id == idno &&
+                    strcmp(id, p->name) == 0 &&
+                    try_module_get(p->owner)) {
+                        clk = p;
+                        break;
+                }
+        }
+
+        /* check for the case where a device was supplied, but the
+         * clock that was being searched for is not device specific */
+
+        if (IS_ERR(clk)) {
+                list_for_each_entry(p, &clocks, list) {
+                        if (p->id == -1 && strcmp(id, p->name) == 0 &&
+                            try_module_get(p->owner)) {
+                                clk = p;
+                                break;
+                        }
+                }
+        }
+
+        spin_unlock(&clocks_lock);
+        return clk;
+}
+
+void clk_put(struct clk *clk)
+{
+        module_put(clk->owner);
+}
+
+int clk_enable(struct clk *clk)
+{
+        if (IS_ERR(clk) || clk == NULL)
+                return -EINVAL;
+
+        clk_enable(clk->parent);
+
+        spin_lock(&clocks_lock);
+
+        if ((clk->usage++) == 0)
+                (clk->enable)(clk, 1);
+
+        spin_unlock(&clocks_lock);
+        return 0;
+}
+
+void clk_disable(struct clk *clk)
+{
+        if (IS_ERR(clk) || clk == NULL)
+                return;
+
+        spin_lock(&clocks_lock);
+
+        if ((--clk->usage) == 0)
+                (clk->enable)(clk, 0);
+
+        spin_unlock(&clocks_lock);
+        clk_disable(clk->parent);
+}
+
+
+unsigned long clk_get_rate(struct clk *clk)
+{
+        if (IS_ERR(clk))
+                return 0;
+
+        if (clk->rate != 0)
+                return clk->rate;
+
+        if (clk->get_rate != NULL)
+                return (clk->get_rate)(clk);
+
+        if (clk->parent != NULL)
+                return clk_get_rate(clk->parent);
+
+        return clk->rate;
+}
+
+long clk_round_rate(struct clk *clk, unsigned long rate)
+{
+        if (!IS_ERR(clk) && clk->round_rate)
+                return (clk->round_rate)(clk, rate);
+
+        return rate;
+}
+
+int clk_set_rate(struct clk *clk, unsigned long rate)
+{
+        int ret;
+
+        if (IS_ERR(clk))
+                return -EINVAL;
+
+        /* We do not default just do a clk->rate = rate as
+         * the clock may have been made this way by choice.
+         */
+
+        WARN_ON(clk->set_rate == NULL);
+
+        if (clk->set_rate == NULL)
+                return -EINVAL;
+
+        spin_lock(&clocks_lock);
+        ret = (clk->set_rate)(clk, rate);
+        spin_unlock(&clocks_lock);
+
+        return ret;
+}
+
+struct clk *clk_get_parent(struct clk *clk)
+{
+        return clk->parent;
+}
+
+int clk_set_parent(struct clk *clk, struct clk *parent)
+{
+        int ret = 0;
+
+        if (IS_ERR(clk))
+                return -EINVAL;
+
+        spin_lock(&clocks_lock);
+
+        if (clk->set_parent)
+                ret = (clk->set_parent)(clk, parent);
+
+        spin_unlock(&clocks_lock);
+
+        return ret;
+}
+
+EXPORT_SYMBOL(clk_get);
+EXPORT_SYMBOL(clk_put);
+EXPORT_SYMBOL(clk_enable);
+EXPORT_SYMBOL(clk_disable);
+EXPORT_SYMBOL(clk_get_rate);
+EXPORT_SYMBOL(clk_round_rate);
+EXPORT_SYMBOL(clk_set_rate);
+EXPORT_SYMBOL(clk_get_parent);
+EXPORT_SYMBOL(clk_set_parent);
+
+/* base clocks */
+
+static int clk_default_setrate(struct clk *clk, unsigned long rate)
+{
+        clk->rate = rate;
+        return 0;
+}
+
+struct clk clk_xtal = {
+        .name           = "xtal",
+        .id             = -1,
+        .rate           = 0,
+        .parent         = NULL,
+        .ctrlbit        = 0,
+};
+
+struct clk clk_ext = {
+        .name           = "ext",
+        .id             = -1,
+};
+
+struct clk clk_epll = {
+        .name           = "epll",
+        .id             = -1,
+};
+
+struct clk clk_mpll = {
+        .name           = "mpll",
+        .id             = -1,
+        .set_rate       = clk_default_setrate,
+};
+
+struct clk clk_upll = {
+        .name           = "upll",
+        .id             = -1,
+        .parent         = NULL,
+        .ctrlbit        = 0,
+};
+
+struct clk clk_f = {
+        .name           = "fclk",
+        .id             = -1,
+        .rate           = 0,
+        .parent         = &clk_mpll,
+        .ctrlbit        = 0,
+        .set_rate       = clk_default_setrate,
+};
+
+struct clk clk_h = {
+        .name           = "hclk",
+        .id             = -1,
+        .rate           = 0,
+        .parent         = NULL,
+        .ctrlbit        = 0,
+        .set_rate       = clk_default_setrate,
+};
+
+struct clk clk_p = {
+        .name           = "pclk",
+        .id             = -1,
+        .rate           = 0,
+        .parent         = NULL,
+        .ctrlbit        = 0,
+        .set_rate       = clk_default_setrate,
+};
+
+struct clk clk_usb_bus = {
+        .name           = "usb-bus",
+        .id             = -1,
+        .rate           = 0,
+        .parent         = &clk_upll,
+};
+
+
+
+struct clk s3c24xx_uclk = {
+        .name           = "uclk",
+        .id             = -1,
+};
+
+/* initialise the clock system */
+
+int s3c24xx_register_clock(struct clk *clk)
+{
+        clk->owner = THIS_MODULE;
+
+        if (clk->enable == NULL)
+                clk->enable = clk_null_enable;
+
+        /* add to the list of available clocks */
+
+        /* Quick check to see if this clock has already been registered. */
+        BUG_ON(clk->list.prev != clk->list.next);
+
+        spin_lock(&clocks_lock);
+        list_add(&clk->list, &clocks);
+        spin_unlock(&clocks_lock);
+
+        return 0;
+}
+
+int s3c24xx_register_clocks(struct clk **clks, int nr_clks)
+{
+        int fails = 0;
+
+        for (; nr_clks > 0; nr_clks--, clks++) {
+                if (s3c24xx_register_clock(*clks) < 0)
+                        fails++;
+        }
+
+        return fails;
+}
+
+/* initalise all the clocks */
+
+int __init s3c24xx_register_baseclocks(unsigned long xtal)
+{
+        printk(KERN_INFO "S3C24XX Clocks, (c) 2004 Simtec Electronics\n");
+
+        clk_xtal.rate = xtal;
+
+        /* register our clocks */
+
+        if (s3c24xx_register_clock(&clk_xtal) < 0)
+                printk(KERN_ERR "failed to register master xtal\n");
+
+        if (s3c24xx_register_clock(&clk_mpll) < 0)
+                printk(KERN_ERR "failed to register mpll clock\n");
+
+        if (s3c24xx_register_clock(&clk_upll) < 0)
+                printk(KERN_ERR "failed to register upll clock\n");
+
+        if (s3c24xx_register_clock(&clk_f) < 0)
+                printk(KERN_ERR "failed to register cpu fclk\n");
+
+        if (s3c24xx_register_clock(&clk_h) < 0)
+                printk(KERN_ERR "failed to register cpu hclk\n");
+
+        if (s3c24xx_register_clock(&clk_p) < 0)
+                printk(KERN_ERR "failed to register cpu pclk\n");
+
+        return 0;
+}
+
diff --git a/arch/arm/plat-s3c/dev-fb.c b/arch/arm/plat-s3c/dev-fb.c
new file mode 100644
index 000000000000..0454b8ec02e2
--- /dev/null
+++ b/arch/arm/plat-s3c/dev-fb.c
@@ -0,0 +1,72 @@
+/* linux/arch/arm/plat-s3c/dev-fb.c
+ *
+ * Copyright 2008 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *      http://armlinux.simtec.co.uk/
+ *
+ * S3C series device definition for framebuffer device
+ *
+ * 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/string.h>
+#include <linux/platform_device.h>
+#include <linux/fb.h>
+
+#include <mach/map.h>
+#include <mach/regs-fb.h>
+
+#include <plat/fb.h>
+#include <plat/devs.h>
+#include <plat/cpu.h>
+
+static struct resource s3c_fb_resource[] = {
+        [0] = {
+                .start = S3C_PA_FB,
+                .end   = S3C_PA_FB + SZ_16K - 1,
+                .flags = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start = IRQ_LCD_VSYNC,
+                .end   = IRQ_LCD_VSYNC,
+                .flags = IORESOURCE_IRQ,
+        },
+        [2] = {
+                .start = IRQ_LCD_FIFO,
+                .end   = IRQ_LCD_FIFO,
+                .flags = IORESOURCE_IRQ,
+        },
+        [3] = {
+                .start = IRQ_LCD_SYSTEM,
+                .end   = IRQ_LCD_SYSTEM,
+                .flags = IORESOURCE_IRQ,
+        },
+};
+
+struct platform_device s3c_device_fb = {
+        .name             = "s3c-fb",
+        .id               = -1,
+        .num_resources    = ARRAY_SIZE(s3c_fb_resource),
+        .resource         = s3c_fb_resource,
+        .dev.dma_mask     = &s3c_device_fb.dev.coherent_dma_mask,
+        .dev.coherent_dma_mask = 0xffffffffUL,
+};
+
+void __init s3c_fb_set_platdata(struct s3c_fb_platdata *pd)
+{
+        struct s3c_fb_platdata *npd;
+
+        if (!pd) {
+                printk(KERN_ERR "%s: no platform data\n", __func__);
+                return;
+        }
+
+        npd = kmemdup(pd, sizeof(struct s3c_fb_platdata), GFP_KERNEL);
+        if (!npd)
+                printk(KERN_ERR "%s: no memory for platform data\n", __func__);
+
+        s3c_device_fb.dev.platform_data = npd;
+}
diff --git a/arch/arm/plat-s3c/dev-hsmmc.c b/arch/arm/plat-s3c/dev-hsmmc.c
new file mode 100644
index 000000000000..4c05b39810e2
--- /dev/null
+++ b/arch/arm/plat-s3c/dev-hsmmc.c
@@ -0,0 +1,68 @@
+/* linux/arch/arm/plat-s3c/dev-hsmmc.c
+ *
+ * Copyright (c) 2008 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *      http://armlinux.simtec.co.uk/
+ *
+ * S3C series device definition for hsmmc devices
+ *
+ * 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/platform_device.h>
+#include <linux/mmc/host.h>
+
+#include <mach/map.h>
+#include <plat/sdhci.h>
+#include <plat/devs.h>
+#include <plat/cpu.h>
+
+#define S3C_SZ_HSMMC    (0x1000)
+
+static struct resource s3c_hsmmc_resource[] = {
+        [0] = {
+                .start = S3C_PA_HSMMC0,
+                .end   = S3C_PA_HSMMC0 + S3C_SZ_HSMMC - 1,
+                .flags = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start = IRQ_HSMMC0,
+                .end   = IRQ_HSMMC0,
+                .flags = IORESOURCE_IRQ,
+        }
+};
+
+static u64 s3c_device_hsmmc_dmamask = 0xffffffffUL;
+
+struct s3c_sdhci_platdata s3c_hsmmc0_def_platdata = {
+        .max_width      = 4,
+        .host_caps      = (MMC_CAP_4_BIT_DATA |
+                           MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED),
+};
+
+struct platform_device s3c_device_hsmmc0 = {
+        .name           = "s3c-sdhci",
+        .id             = 0,
+        .num_resources  = ARRAY_SIZE(s3c_hsmmc_resource),
+        .resource       = s3c_hsmmc_resource,
+        .dev            = {
+                .dma_mask               = &s3c_device_hsmmc_dmamask,
+                .coherent_dma_mask      = 0xffffffffUL,
+                .platform_data          = &s3c_hsmmc0_def_platdata,
+        },
+};
+
+void s3c_sdhci0_set_platdata(struct s3c_sdhci_platdata *pd)
+{
+        struct s3c_sdhci_platdata *set = &s3c_hsmmc0_def_platdata;
+
+        set->max_width = pd->max_width;
+
+        if (pd->cfg_gpio)
+                set->cfg_gpio = pd->cfg_gpio;
+        if (pd->cfg_card)
+                set->cfg_card = pd->cfg_card;
+}
diff --git a/arch/arm/plat-s3c/dev-hsmmc1.c b/arch/arm/plat-s3c/dev-hsmmc1.c
new file mode 100644
index 000000000000..e49bc4cd0ee6
--- /dev/null
+++ b/arch/arm/plat-s3c/dev-hsmmc1.c
@@ -0,0 +1,68 @@
+/* linux/arch/arm/plat-s3c/dev-hsmmc1.c
+ *
+ * Copyright (c) 2008 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *      http://armlinux.simtec.co.uk/
+ *
+ * S3C series device definition for hsmmc device 1
+ *
+ * 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/platform_device.h>
+#include <linux/mmc/host.h>
+
+#include <mach/map.h>
+#include <plat/sdhci.h>
+#include <plat/devs.h>
+#include <plat/cpu.h>
+
+#define S3C_SZ_HSMMC    (0x1000)
+
+static struct resource s3c_hsmmc1_resource[] = {
+        [0] = {
+                .start = S3C_PA_HSMMC1,
+                .end   = S3C_PA_HSMMC1 + S3C_SZ_HSMMC - 1,
+                .flags = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start = IRQ_HSMMC1,
+                .end   = IRQ_HSMMC1,
+                .flags = IORESOURCE_IRQ,
+        }
+};
+
+static u64 s3c_device_hsmmc1_dmamask = 0xffffffffUL;
+
+struct s3c_sdhci_platdata s3c_hsmmc1_def_platdata = {
+        .max_width      = 4,
+        .host_caps      = (MMC_CAP_4_BIT_DATA |
+                           MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED),
+};
+
+struct platform_device s3c_device_hsmmc1 = {
+        .name           = "s3c-sdhci",
+        .id             = 1,
+        .num_resources  = ARRAY_SIZE(s3c_hsmmc1_resource),
+        .resource       = s3c_hsmmc1_resource,
+        .dev            = {
+                .dma_mask               = &s3c_device_hsmmc1_dmamask,
+                .coherent_dma_mask      = 0xffffffffUL,
+                .platform_data          = &s3c_hsmmc1_def_platdata,
+        },
+};
+
+void s3c_sdhci1_set_platdata(struct s3c_sdhci_platdata *pd)
+{
+        struct s3c_sdhci_platdata *set = &s3c_hsmmc1_def_platdata;
+
+        set->max_width = pd->max_width;
+
+        if (pd->cfg_gpio)
+                set->cfg_gpio = pd->cfg_gpio;
+        if (pd->cfg_card)
+                set->cfg_card = pd->cfg_card;
+}
diff --git a/arch/arm/plat-s3c/dev-i2c0.c b/arch/arm/plat-s3c/dev-i2c0.c
new file mode 100644
index 000000000000..2c0128c77c6e
--- /dev/null
+++ b/arch/arm/plat-s3c/dev-i2c0.c
@@ -0,0 +1,71 @@
+/* linux/arch/arm/plat-s3c/dev-i2c0.c
+ *
+ * Copyright 2008 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *      http://armlinux.simtec.co.uk/
+ *
+ * S3C series device definition for i2c device 0
+ *
+ * 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/string.h>
+#include <linux/platform_device.h>
+
+#include <mach/map.h>
+
+#include <plat/regs-iic.h>
+#include <plat/iic.h>
+#include <plat/devs.h>
+#include <plat/cpu.h>
+
+static struct resource s3c_i2c_resource[] = {
+        [0] = {
+                .start = S3C_PA_IIC,
+                .end   = S3C_PA_IIC + SZ_4K - 1,
+                .flags = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start = IRQ_IIC,
+                .end   = IRQ_IIC,
+                .flags = IORESOURCE_IRQ,
+        },
+};
+
+struct platform_device s3c_device_i2c0 = {
+        .name             = "s3c2410-i2c",
+#ifdef CONFIG_S3C_DEV_I2C1
+        .id               = 0,
+#else
+        .id               = -1,
+#endif
+        .num_resources    = ARRAY_SIZE(s3c_i2c_resource),
+        .resource         = s3c_i2c_resource,
+};
+
+static struct s3c2410_platform_i2c default_i2c_data0 __initdata = {
+        .flags          = 0,
+        .slave_addr     = 0x10,
+        .bus_freq       = 100*1000,
+        .max_freq       = 400*1000,
+        .sda_delay      = S3C2410_IICLC_SDA_DELAY5 | S3C2410_IICLC_FILTER_ON,
+};
+
+void __init s3c_i2c0_set_platdata(struct s3c2410_platform_i2c *pd)
+{
+        struct s3c2410_platform_i2c *npd;
+
+        if (!pd)
+                pd = &default_i2c_data0;
+
+        npd = kmemdup(pd, sizeof(struct s3c2410_platform_i2c), GFP_KERNEL);
+        if (!npd)
+                printk(KERN_ERR "%s: no memory for platform data\n", __func__);
+        else if (!npd->cfg_gpio)
+                npd->cfg_gpio = s3c_i2c0_cfg_gpio;
+
+        s3c_device_i2c0.dev.platform_data = npd;
+}
diff --git a/arch/arm/plat-s3c/dev-i2c1.c b/arch/arm/plat-s3c/dev-i2c1.c
new file mode 100644
index 000000000000..9658fb0aec95
--- /dev/null
+++ b/arch/arm/plat-s3c/dev-i2c1.c
@@ -0,0 +1,68 @@
+/* linux/arch/arm/plat-s3c/dev-i2c1.c
+ *
+ * Copyright 2008 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *      http://armlinux.simtec.co.uk/
+ *
+ * S3C series device definition for i2c device 1
+ *
+ * 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/string.h>
+#include <linux/platform_device.h>
+
+#include <mach/map.h>
+
+#include <plat/regs-iic.h>
+#include <plat/iic.h>
+#include <plat/devs.h>
+#include <plat/cpu.h>
+
+static struct resource s3c_i2c_resource[] = {
+        [0] = {
+                .start = S3C_PA_IIC1,
+                .end   = S3C_PA_IIC1 + SZ_4K - 1,
+                .flags = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start = IRQ_IIC1,
+                .end   = IRQ_IIC1,
+                .flags = IORESOURCE_IRQ,
+        },
+};
+
+struct platform_device s3c_device_i2c1 = {
+        .name             = "s3c2410-i2c",
+        .id               = 1,
+        .num_resources    = ARRAY_SIZE(s3c_i2c_resource),
+        .resource         = s3c_i2c_resource,
+};
+
+static struct s3c2410_platform_i2c default_i2c_data1 __initdata = {
+        .flags          = 0,
+        .bus_num        = 1,
+        .slave_addr     = 0x10,
+        .bus_freq       = 100*1000,
+        .max_freq       = 400*1000,
+        .sda_delay      = S3C2410_IICLC_SDA_DELAY5 | S3C2410_IICLC_FILTER_ON,
+};
+
+void __init s3c_i2c1_set_platdata(struct s3c2410_platform_i2c *pd)
+{
+        struct s3c2410_platform_i2c *npd;
+
+        if (!pd)
+                pd = &default_i2c_data1;
+
+        npd = kmemdup(pd, sizeof(struct s3c2410_platform_i2c), GFP_KERNEL);
+        if (!npd)
+                printk(KERN_ERR "%s: no memory for platform data\n", __func__);
+        else if (!npd->cfg_gpio)
+                npd->cfg_gpio = s3c_i2c1_cfg_gpio;
+
+        s3c_device_i2c1.dev.platform_data = npd;
+}
diff --git a/arch/arm/plat-s3c/gpio-config.c b/arch/arm/plat-s3c/gpio-config.c
new file mode 100644
index 000000000000..7642b975a998
--- /dev/null
+++ b/arch/arm/plat-s3c/gpio-config.c
@@ -0,0 +1,163 @@
+/* linux/arch/arm/plat-s3c/gpio-config.c
+ *
+ * Copyright 2008 Openmoko, Inc.
+ * Copyright 2008 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *      http://armlinux.simtec.co.uk/
+ *
+ * S3C series GPIO configuration core
+ *
+ * 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/gpio.h>
+#include <linux/io.h>
+
+#include <mach/gpio-core.h>
+#include <plat/gpio-cfg.h>
+#include <plat/gpio-cfg-helpers.h>
+
+int s3c_gpio_cfgpin(unsigned int pin, unsigned int config)
+{
+        struct s3c_gpio_chip *chip = s3c_gpiolib_getchip(pin);
+        unsigned long flags;
+        int offset;
+        int ret;
+
+        if (!chip)
+                return -EINVAL;
+
+        offset = pin - chip->chip.base;
+
+        local_irq_save(flags);
+        ret = s3c_gpio_do_setcfg(chip, offset, config);
+        local_irq_restore(flags);
+
+        return ret;
+}
+
+int s3c_gpio_setpull(unsigned int pin, s3c_gpio_pull_t pull)
+{
+        struct s3c_gpio_chip *chip = s3c_gpiolib_getchip(pin);
+        unsigned long flags;
+        int offset, ret;
+
+        if (!chip)
+                return -EINVAL;
+
+        offset = pin - chip->chip.base;
+
+        local_irq_save(flags);
+        ret = s3c_gpio_do_setpull(chip, offset, pull);
+        local_irq_restore(flags);
+
+        return ret;
+}
+
+#ifdef CONFIG_S3C_GPIO_CFG_S3C24XX
+int s3c_gpio_setcfg_s3c24xx_banka(struct s3c_gpio_chip *chip,
+                                  unsigned int off, unsigned int cfg)
+{
+        void __iomem *reg = chip->base;
+        unsigned int shift = off;
+        u32 con;
+
+        if (s3c_gpio_is_cfg_special(cfg)) {
+                cfg &= 0xf;
+
+                /* Map output to 0, and SFN2 to 1 */
+                cfg -= 1;
+                if (cfg > 1)
+                        return -EINVAL;
+
+                cfg <<= shift;
+        }
+
+        con = __raw_readl(reg);
+        con &= ~(0x1 << shift);
+        con |= cfg;
+        __raw_writel(con, reg);
+
+        return 0;
+}
+
+int s3c_gpio_setcfg_s3c24xx(struct s3c_gpio_chip *chip,
+                            unsigned int off, unsigned int cfg)
+{
+        void __iomem *reg = chip->base;
+        unsigned int shift = off * 2;
+        u32 con;
+
+        if (s3c_gpio_is_cfg_special(cfg)) {
+                cfg &= 0xf;
+                if (cfg > 3)
+                        return -EINVAL;
+
+                cfg <<= shift;
+        }
+
+        con = __raw_readl(reg);
+        con &= ~(0x3 << shift);
+        con |= cfg;
+        __raw_writel(con, reg);
+
+        return 0;
+}
+#endif
+
+#ifdef CONFIG_S3C_GPIO_CFG_S3C64XX
+int s3c_gpio_setcfg_s3c64xx_4bit(struct s3c_gpio_chip *chip,
+                                 unsigned int off, unsigned int cfg)
+{
+        void __iomem *reg = chip->base;
+        unsigned int shift = (off & 7) * 4;
+        u32 con;
+
+        if (off < 8 && chip->chip.ngpio >= 8)
+                reg -= 4;
+
+        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;
+}
+#endif /* CONFIG_S3C_GPIO_CFG_S3C64XX */
+
+#ifdef CONFIG_S3C_GPIO_PULL_UPDOWN
+int s3c_gpio_setpull_updown(struct s3c_gpio_chip *chip,
+                            unsigned int off, s3c_gpio_pull_t pull)
+{
+        void __iomem *reg = chip->base + 0x08;
+        int shift = off * 2;
+        u32 pup;
+
+        pup = __raw_readl(reg);
+        pup &= ~(3 << shift);
+        pup |= pull << shift;
+        __raw_writel(pup, reg);
+
+        return 0;
+}
+
+s3c_gpio_pull_t s3c_gpio_getpull_updown(struct s3c_gpio_chip *chip,
+                                        unsigned int off)
+{
+        void __iomem *reg = chip->base + 0x08;
+        int shift = off * 2;
+        u32 pup = __raw_readl(reg);
+
+        pup >>= shift;
+        pup &= 0x3;
+        return (__force s3c_gpio_pull_t)pup;
+}
+#endif
diff --git a/arch/arm/plat-s3c/gpio.c b/arch/arm/plat-s3c/gpio.c
new file mode 100644
index 000000000000..d71dd6d9ce5c
--- /dev/null
+++ b/arch/arm/plat-s3c/gpio.c
@@ -0,0 +1,147 @@
+/* linux/arch/arm/plat-s3c/gpio.c
+ *
+ * Copyright 2008 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *      http://armlinux.simtec.co.uk/
+ *
+ * S3C series GPIO core
+ *
+ * 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/init.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
+
+#include <plat/gpio-core.h>
+
+#ifdef CONFIG_S3C_GPIO_TRACK
+struct s3c_gpio_chip *s3c_gpios[S3C_GPIO_END];
+
+static __init void s3c_gpiolib_track(struct s3c_gpio_chip *chip)
+{
+        unsigned int gpn;
+        int i;
+
+        gpn = chip->chip.base;
+        for (i = 0; i < chip->chip.ngpio; i++, gpn++) {
+                BUG_ON(gpn > ARRAY_SIZE(s3c_gpios));
+                s3c_gpios[gpn] = chip;
+        }
+}
+#endif /* CONFIG_S3C_GPIO_TRACK */
+
+/* Default routines for controlling GPIO, based on the original S3C24XX
+ * GPIO functions which deal with the case where each gpio bank of the
+ * chip is as following:
+ *
+ * base + 0x00: Control register, 2 bits per gpio
+ *              gpio n: 2 bits starting at (2*n)
+ *              00 = input, 01 = output, others mean special-function
+ * base + 0x04: Data register, 1 bit per gpio
+ *              bit n: data bit n
+*/
+
+static int s3c_gpiolib_input(struct gpio_chip *chip, unsigned offset)
+{
+        struct s3c_gpio_chip *ourchip = to_s3c_gpio(chip);
+        void __iomem *base = ourchip->base;
+        unsigned long flags;
+        unsigned long con;
+
+        local_irq_save(flags);
+
+        con = __raw_readl(base + 0x00);
+        con &= ~(3 << (offset * 2));
+
+        __raw_writel(con, base + 0x00);
+
+        local_irq_restore(flags);
+        return 0;
+}
+
+static int s3c_gpiolib_output(struct gpio_chip *chip,
+                              unsigned offset, int value)
+{
+        struct s3c_gpio_chip *ourchip = to_s3c_gpio(chip);
+        void __iomem *base = ourchip->base;
+        unsigned long flags;
+        unsigned long dat;
+        unsigned long con;
+
+        local_irq_save(flags);
+
+        dat = __raw_readl(base + 0x04);
+        dat &= ~(1 << offset);
+        if (value)
+                dat |= 1 << offset;
+        __raw_writel(dat, base + 0x04);
+
+        con = __raw_readl(base + 0x00);
+        con &= ~(3 << (offset * 2));
+        con |= 1 << (offset * 2);
+
+        __raw_writel(con, base + 0x00);
+        __raw_writel(dat, base + 0x04);
+
+        local_irq_restore(flags);
+        return 0;
+}
+
+static void s3c_gpiolib_set(struct gpio_chip *chip,
+                            unsigned offset, int value)
+{
+        struct s3c_gpio_chip *ourchip = to_s3c_gpio(chip);
+        void __iomem *base = ourchip->base;
+        unsigned long flags;
+        unsigned long dat;
+
+        local_irq_save(flags);
+
+        dat = __raw_readl(base + 0x04);
+        dat &= ~(1 << offset);
+        if (value)
+                dat |= 1 << offset;
+        __raw_writel(dat, base + 0x04);
+
+        local_irq_restore(flags);
+}
+
+static int s3c_gpiolib_get(struct gpio_chip *chip, unsigned offset)
+{
+        struct s3c_gpio_chip *ourchip = to_s3c_gpio(chip);
+        unsigned long val;
+
+        val = __raw_readl(ourchip->base + 0x04);
+        val >>= offset;
+        val &= 1;
+
+        return val;
+}
+
+__init void s3c_gpiolib_add(struct s3c_gpio_chip *chip)
+{
+        struct gpio_chip *gc = &chip->chip;
+        int ret;
+
+        BUG_ON(!chip->base);
+        BUG_ON(!gc->label);
+        BUG_ON(!gc->ngpio);
+
+        if (!gc->direction_input)
+                gc->direction_input = s3c_gpiolib_input;
+        if (!gc->direction_output)
+                gc->direction_output = s3c_gpiolib_output;
+        if (!gc->set)
+                gc->set = s3c_gpiolib_set;
+        if (!gc->get)
+                gc->get = s3c_gpiolib_get;
+
+        /* gpiochip_add() prints own failure message on error. */
+        ret = gpiochip_add(gc);
+        if (ret >= 0)
+                s3c_gpiolib_track(chip);
+}
diff --git a/arch/arm/plat-s3c/include/mach/io.h b/arch/arm/plat-s3c/include/mach/io.h
new file mode 100644
index 000000000000..10d28d66ace3
--- /dev/null
+++ b/arch/arm/plat-s3c/include/mach/io.h
@@ -0,0 +1,18 @@
+/* arch/arm/plat-s3c/include/mach/io.h
+ *
+ * Copyright 2008 Simtec Electronics
+ *      Ben Dooks <ben-linux@fluff.org>
+ *
+ * Default IO routines for plat-s3c based systems, such as S3C24A0
+ */
+
+#ifndef __ASM_ARM_ARCH_IO_H
+#define __ASM_ARM_ARCH_IO_H
+
+/* No current ISA/PCI bus support. */
+#define __io(a)         ((void __iomem *)(a))
+#define __mem_pci(a)    (a)
+
+#define IO_SPACE_LIMIT (0xFFFFFFFF)
+
+#endif
diff --git a/arch/arm/plat-s3c/include/mach/timex.h b/arch/arm/plat-s3c/include/mach/timex.h
new file mode 100644
index 000000000000..2a425ed0a7e0
--- /dev/null
+++ b/arch/arm/plat-s3c/include/mach/timex.h
@@ -0,0 +1,26 @@
+/* arch/arm/mach-s3c2410/include/mach/timex.h
+ *
+ * Copyright (c) 2003-2005 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C2410 - 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/plat-s3c/include/mach/vmalloc.h b/arch/arm/plat-s3c/include/mach/vmalloc.h
new file mode 100644
index 000000000000..bfd2ca6e3074
--- /dev/null
+++ b/arch/arm/plat-s3c/include/mach/vmalloc.h
@@ -0,0 +1,20 @@
+/* arch/arm/plat-s3c/include/mach/vmalloc.h
+ *
+ * from arch/arm/mach-iop3xx/include/mach/vmalloc.h
+ *
+ * Copyright (c) 2003 Simtec Electronics <linux@simtec.co.uk>
+ *                    http://www.simtec.co.uk/products/SWLINUX/
+ *
+ * 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.
+ *
+ * S3C2410 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/plat-s3c/include/plat/adc.h b/arch/arm/plat-s3c/include/plat/adc.h
new file mode 100644
index 000000000000..43df2a404b0b
--- /dev/null
+++ b/arch/arm/plat-s3c/include/plat/adc.h
@@ -0,0 +1,29 @@
+/* arch/arm/plat-s3c/include/plat/adc.h
+ *
+ * Copyright (c) 2008 Simtec Electronics
+ *      http://armlinux.simnte.co.uk/
+ *      Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C24XX ADC driver information
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef __ASM_PLAT_ADC_H
+#define __ASM_PLAT_ADC_H __FILE__
+
+struct s3c_adc_client;
+
+extern int s3c_adc_start(struct s3c_adc_client *client,
+                         unsigned int channel, unsigned int nr_samples);
+
+extern struct s3c_adc_client *s3c_adc_register(struct platform_device *pdev,
+                                               void (*select)(unsigned selected),
+                                               void (*conv)(unsigned d0, unsigned d1),
+                                               unsigned int is_ts);
+
+extern void s3c_adc_release(struct s3c_adc_client *client);
+
+#endif /* __ASM_PLAT_ADC_H */
diff --git a/arch/arm/plat-s3c/include/plat/clock.h b/arch/arm/plat-s3c/include/plat/clock.h
new file mode 100644
index 000000000000..a10622eed43a
--- /dev/null
+++ b/arch/arm/plat-s3c/include/plat/clock.h
@@ -0,0 +1,88 @@
+/* linux/arch/arm/plat-s3c/include/plat/clock.h
+ *
+ * Copyright (c) 2004-2005 Simtec Electronics
+ *      http://www.simtec.co.uk/products/SWLINUX/
+ *      Written by Ben Dooks, <ben@simtec.co.uk>
+ *
+ * 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/spinlock.h>
+
+struct clk {
+        struct list_head      list;
+        struct module        *owner;
+        struct clk           *parent;
+        const char           *name;
+        int                   id;
+        int                   usage;
+        unsigned long         rate;
+        unsigned long         ctrlbit;
+
+        int                 (*enable)(struct clk *, int enable);
+        int                 (*set_rate)(struct clk *c, unsigned long rate);
+        unsigned long       (*get_rate)(struct clk *c);
+        unsigned long       (*round_rate)(struct clk *c, unsigned long rate);
+        int                 (*set_parent)(struct clk *c, struct clk *parent);
+};
+
+/* other clocks which may be registered by board support */
+
+extern struct clk s3c24xx_dclk0;
+extern struct clk s3c24xx_dclk1;
+extern struct clk s3c24xx_clkout0;
+extern struct clk s3c24xx_clkout1;
+extern struct clk s3c24xx_uclk;
+
+extern struct clk clk_usb_bus;
+
+/* core clock support */
+
+extern struct clk clk_f;
+extern struct clk clk_h;
+extern struct clk clk_p;
+extern struct clk clk_mpll;
+extern struct clk clk_upll;
+extern struct clk clk_epll;
+extern struct clk clk_xtal;
+extern struct clk clk_ext;
+
+/* S3C64XX specific clocks */
+extern struct clk clk_27m;
+extern struct clk clk_48m;
+
+/* exports for arch/arm/mach-s3c2410
+ *
+ * Please DO NOT use these outside of arch/arm/mach-s3c2410
+*/
+
+extern spinlock_t clocks_lock;
+
+extern int s3c2410_clkcon_enable(struct clk *clk, int enable);
+
+extern int s3c24xx_register_clock(struct clk *clk);
+extern int s3c24xx_register_clocks(struct clk **clk, int nr_clks);
+
+extern int s3c24xx_register_baseclocks(unsigned long xtal);
+
+extern void s3c64xx_register_clocks(void);
+
+extern void s3c24xx_setup_clocks(unsigned long fclk,
+                                 unsigned long hclk,
+                                 unsigned long pclk);
+
+extern void s3c2410_setup_clocks(void);
+extern void s3c2412_setup_clocks(void);
+extern void s3c244x_setup_clocks(void);
+extern void s3c2443_setup_clocks(void);
+
+/* S3C64XX specific functions and clocks */
+
+extern int s3c64xx_sclk_ctrl(struct clk *clk, int enable);
+
+/* Init for pwm clock code */
+
+extern void s3c_pwmclk_init(void);
+
diff --git a/arch/arm/plat-s3c/include/plat/cpu-freq.h b/arch/arm/plat-s3c/include/plat/cpu-freq.h
new file mode 100644
index 000000000000..c86a13307e90
--- /dev/null
+++ b/arch/arm/plat-s3c/include/plat/cpu-freq.h
@@ -0,0 +1,94 @@
+/* arch/arm/plat-s3c/include/plat/cpu-freq.h
+ *
+ * Copyright (c) 2006,2007 Simtec Electronics
+ *      http://armlinux.simtec.co.uk/
+ *      Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C CPU frequency scaling support - driver and board
+ *
+ * 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/cpufreq.h>
+
+struct s3c_cpufreq_info;
+struct s3c_cpufreq_board;
+struct s3c_iotimings;
+
+struct s3c_freq {
+        unsigned long   fclk;
+        unsigned long   armclk;
+        unsigned long   hclk_tns;       /* in 10ths of ns */
+        unsigned long   hclk;
+        unsigned long   pclk;
+};
+
+/* wrapper 'struct cpufreq_freqs' so that any drivers receiving the
+ * notification can use this information that is not provided by just
+ * having the core frequency alone.
+ */
+
+struct s3c_cpufreq_freqs {
+        struct cpufreq_freqs    freqs;
+        struct s3c_freq         old;
+        struct s3c_freq         new;
+};
+
+#define to_s3c_cpufreq(_cf) container_of(_cf, struct s3c_cpufreq_freqs, freqs)
+
+struct s3c_clkdivs {
+        int             p_divisor;      /* fclk / pclk */
+        int             h_divisor;      /* fclk / hclk */
+        int             arm_divisor;    /* not all cpus have this. */
+        unsigned char   dvs;            /* using dvs mode to arm. */
+};
+
+#define PLLVAL(_m, _p, _s) (((_m) << 12) | ((_p) << 4) | (_s))
+
+struct s3c_pllval {
+        unsigned long           freq;
+        unsigned long           pll_reg;
+};
+
+struct s3c_cpufreq_config {
+        struct s3c_freq         freq;
+        struct s3c_pllval       pll;
+        struct s3c_clkdivs      divs;
+        struct s3c_cpufreq_info *info;  /* for core, not drivers */
+        struct s3c_cpufreq_board *board;
+};
+
+/* s3c_cpufreq_board
+ *
+ * per-board configuraton information, such as memory refresh and
+ * how to initialise IO timings.
+ */
+struct s3c_cpufreq_board {
+        unsigned int    refresh;        /* refresh period in ns */
+        unsigned int    auto_io:1;      /* automatically init io timings. */
+        unsigned int    need_io:1;      /* set if needs io timing support. */
+
+        /* any non-zero field in here is taken as an upper limit. */
+        struct s3c_freq max;    /* frequency limits */
+};
+
+/* Things depending on frequency scaling. */
+#ifdef CONFIG_CPU_FREQ_S3C
+#define __init_or_cpufreq
+#else
+#define __init_or_cpufreq __init
+#endif
+
+/* Board functions */
+
+#ifdef CONFIG_CPU_FREQ_S3C
+extern int s3c_cpufreq_setboard(struct s3c_cpufreq_board *board);
+#else
+
+static inline int s3c_cpufreq_setboard(struct s3c_cpufreq_board *board)
+{
+        return 0;
+}
+#endif  /* CONFIG_CPU_FREQ_S3C */
diff --git a/arch/arm/plat-s3c/include/plat/cpu.h b/arch/arm/plat-s3c/include/plat/cpu.h
new file mode 100644
index 000000000000..e62ae0fcfe56
--- /dev/null
+++ b/arch/arm/plat-s3c/include/plat/cpu.h
@@ -0,0 +1,71 @@
+/* linux/arch/arm/plat-s3c/include/plat/cpu.h
+ *
+ * Copyright (c) 2004-2005 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *
+ * Header file for S3C24XX CPU support
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+/* todo - fix when rmk changes iodescs to use `void __iomem *` */
+
+#define IODESC_ENT(x) { (unsigned long)S3C24XX_VA_##x, __phys_to_pfn(S3C24XX_PA_##x), S3C24XX_SZ_##x, MT_DEVICE }
+
+#ifndef MHZ
+#define MHZ (1000*1000)
+#endif
+
+#define print_mhz(m) ((m) / MHZ), (((m) / 1000) % 1000)
+
+/* forward declaration */
+struct s3c24xx_uart_resources;
+struct platform_device;
+struct s3c2410_uartcfg;
+struct map_desc;
+
+/* per-cpu initialisation function table. */
+
+struct cpu_table {
+        unsigned long   idcode;
+        unsigned long   idmask;
+        void            (*map_io)(void);
+        void            (*init_uarts)(struct s3c2410_uartcfg *cfg, int no);
+        void            (*init_clocks)(int xtal);
+        int             (*init)(void);
+        const char      *name;
+};
+
+extern void s3c_init_cpu(unsigned long idcode,
+                         struct cpu_table *cpus, unsigned int cputab_size);
+
+/* core initialisation functions */
+
+extern void s3c24xx_init_irq(void);
+extern void s3c64xx_init_irq(u32 vic0, u32 vic1);
+
+extern void s3c24xx_init_io(struct map_desc *mach_desc, int size);
+extern void s3c64xx_init_io(struct map_desc *mach_desc, int size);
+
+extern void s3c24xx_init_uarts(struct s3c2410_uartcfg *cfg, int no);
+
+extern void s3c24xx_init_clocks(int xtal);
+
+extern void s3c24xx_init_uartdevs(char *name,
+                                  struct s3c24xx_uart_resources *res,
+                                  struct s3c2410_uartcfg *cfg, int no);
+
+/* timer for 2410/2440 */
+
+struct sys_timer;
+extern struct sys_timer s3c24xx_timer;
+
+/* system device classes */
+
+extern struct sysdev_class s3c2410_sysclass;
+extern struct sysdev_class s3c2412_sysclass;
+extern struct sysdev_class s3c2440_sysclass;
+extern struct sysdev_class s3c2442_sysclass;
+extern struct sysdev_class s3c2443_sysclass;
diff --git a/arch/arm/plat-s3c/include/plat/debug-macro.S b/arch/arm/plat-s3c/include/plat/debug-macro.S
index 4aa7e2e6c001..3634d4e3708b 100644
--- a/arch/arm/plat-s3c/include/plat/debug-macro.S
+++ b/arch/arm/plat-s3c/include/plat/debug-macro.S
@@ -20,7 +20,7 @@
         .endm
 
 #ifndef fifo_level
-#define fifo_level fifo_level_s3c2410
+#define fifo_level fifo_level_s3c2440
 #endif
 
         .macro  fifo_full_s3c2440 rd, rx
diff --git a/arch/arm/plat-s3c/include/plat/devs.h b/arch/arm/plat-s3c/include/plat/devs.h
new file mode 100644
index 000000000000..6b1b5231511c
--- /dev/null
+++ b/arch/arm/plat-s3c/include/plat/devs.h
@@ -0,0 +1,54 @@
+/* linux/include/asm-arm/plat-s3c24xx/devs.h
+ *
+ * Copyright (c) 2004 Simtec Electronics
+ * Ben Dooks <ben@simtec.co.uk>
+ *
+ * Header file for s3c2410 standard platform devices
+ *
+ * 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/platform_device.h>
+
+struct s3c24xx_uart_resources {
+        struct resource         *resources;
+        unsigned long            nr_resources;
+};
+
+extern struct s3c24xx_uart_resources s3c2410_uart_resources[];
+extern struct s3c24xx_uart_resources s3c64xx_uart_resources[];
+
+extern struct platform_device *s3c24xx_uart_devs[];
+extern struct platform_device *s3c24xx_uart_src[];
+
+extern struct platform_device s3c_device_timer[];
+
+extern struct platform_device s3c_device_fb;
+extern struct platform_device s3c_device_usb;
+extern struct platform_device s3c_device_lcd;
+extern struct platform_device s3c_device_wdt;
+extern struct platform_device s3c_device_i2c0;
+extern struct platform_device s3c_device_i2c1;
+extern struct platform_device s3c_device_iis;
+extern struct platform_device s3c_device_rtc;
+extern struct platform_device s3c_device_adc;
+extern struct platform_device s3c_device_sdi;
+extern struct platform_device s3c_device_hsmmc0;
+extern struct platform_device s3c_device_hsmmc1;
+extern struct platform_device s3c_device_hsmmc2;
+
+extern struct platform_device s3c_device_spi0;
+extern struct platform_device s3c_device_spi1;
+
+extern struct platform_device s3c_device_nand;
+
+extern struct platform_device s3c_device_usbgadget;
+
+/* s3c2440 specific devices */
+
+#ifdef CONFIG_CPU_S3C2440
+
+extern struct platform_device s3c_device_camif;
+
+#endif
diff --git a/arch/arm/plat-s3c/include/plat/fb.h b/arch/arm/plat-s3c/include/plat/fb.h
new file mode 100644
index 000000000000..214ff561b0dd
--- /dev/null
+++ b/arch/arm/plat-s3c/include/plat/fb.h
@@ -0,0 +1,73 @@
+/* linux/arch/arm/plat-s3c/include/plat/fb.h
+ *
+ * Copyright 2008 Openmoko, Inc.
+ * Copyright 2008 Simtec Electronics
+ *      http://armlinux.simtec.co.uk/
+ *      Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C - FB platform data 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 __PLAT_S3C_FB_H
+#define __PLAT_S3C_FB_H __FILE__
+
+/**
+ * struct s3c_fb_pd_win - per window setup data
+ * @win_mode: The display parameters to initialise (not for window 0)
+ * @virtual_x: The virtual X size.
+ * @virtual_y: The virtual Y size.
+ */
+struct s3c_fb_pd_win {
+        struct fb_videomode     win_mode;
+
+        unsigned short          default_bpp;
+        unsigned short          max_bpp;
+        unsigned short          virtual_x;
+        unsigned short          virtual_y;
+};
+
+/**
+ * struct s3c_fb_platdata -  S3C driver platform specific information
+ * @setup_gpio: Setup the external GPIO pins to the right state to transfer
+ *              the data from the display system to the connected display
+ *              device.
+ * @vidcon0: The base vidcon0 values to control the panel data format.
+ * @vidcon1: The base vidcon1 values to control the panel data output.
+ * @win: The setup data for each hardware window, or NULL for unused.
+ * @display_mode: The LCD output display mode.
+ *
+ * The platform data supplies the video driver with all the information
+ * it requires to work with the display(s) attached to the machine. It
+ * controls the initial mode, the number of display windows (0 is always
+ * the base framebuffer) that are initialised etc.
+ *
+ */
+struct s3c_fb_platdata {
+        void    (*setup_gpio)(void);
+
+        struct s3c_fb_pd_win    *win[S3C_FB_MAX_WIN];
+
+        u32                      vidcon0;
+        u32                      vidcon1;
+};
+
+/**
+ * s3c_fb_set_platdata() - Setup the FB device with platform data.
+ * @pd: The platform data to set. The data is copied from the passed structure
+ *      so the machine data can mark the data __initdata so that any unused
+ *      machines will end up dumping their data at runtime.
+ */
+extern void s3c_fb_set_platdata(struct s3c_fb_platdata *pd);
+
+/**
+ * s3c64xx_fb_gpio_setup_24bpp() - S3C64XX setup function for 24bpp LCD
+ *
+ * Initialise the GPIO for an 24bpp LCD display on the RGB interface.
+ */
+extern void s3c64xx_fb_gpio_setup_24bpp(void);
+
+#endif /* __PLAT_S3C_FB_H */
diff --git a/arch/arm/plat-s3c/include/plat/gpio-cfg-helpers.h b/arch/arm/plat-s3c/include/plat/gpio-cfg-helpers.h
new file mode 100644
index 000000000000..652e2bbdaa20
--- /dev/null
+++ b/arch/arm/plat-s3c/include/plat/gpio-cfg-helpers.h
@@ -0,0 +1,176 @@
+/* linux/arch/arm/plat-s3c/include/plat/gpio-cfg-helper.h
+ *
+ * Copyright 2008 Openmoko, Inc.
+ * Copyright 2008 Simtec Electronics
+ *      http://armlinux.simtec.co.uk/
+ *      Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C Platform - GPIO pin configuration helper 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.
+*/
+
+/* This is meant for core cpu support, machine or other driver files
+ * should not be including this header.
+ */
+
+#ifndef __PLAT_GPIO_CFG_HELPERS_H
+#define __PLAT_GPIO_CFG_HELPERS_H __FILE__
+
+/* As a note, all gpio configuration functions are entered exclusively, either
+ * with the relevant lock held or the system prevented from doing anything else
+ * by disabling interrupts.
+*/
+
+static inline int s3c_gpio_do_setcfg(struct s3c_gpio_chip *chip,
+                                     unsigned int off, unsigned int config)
+{
+        return (chip->config->set_config)(chip, off, config);
+}
+
+static inline int s3c_gpio_do_setpull(struct s3c_gpio_chip *chip,
+                                      unsigned int off, s3c_gpio_pull_t pull)
+{
+        return (chip->config->set_pull)(chip, off, pull);
+}
+
+/**
+ * s3c_gpio_setcfg_s3c24xx - S3C24XX style GPIO configuration.
+ * @chip: The gpio chip that is being configured.
+ * @off: The offset for the GPIO being configured.
+ * @cfg: The configuration value to set.
+ *
+ * This helper deal with the GPIO cases where the control register
+ * has two bits of configuration per gpio, which have the following
+ * functions:
+ *      00 = input
+ *      01 = output
+ *      1x = special function
+*/
+extern int s3c_gpio_setcfg_s3c24xx(struct s3c_gpio_chip *chip,
+                                   unsigned int off, unsigned int cfg);
+
+/**
+ * s3c_gpio_setcfg_s3c24xx_a - S3C24XX style GPIO configuration (Bank A)
+ * @chip: The gpio chip that is being configured.
+ * @off: The offset for the GPIO being configured.
+ * @cfg: The configuration value to set.
+ *
+ * This helper deal with the GPIO cases where the control register
+ * has one bit of configuration for the gpio, where setting the bit
+ * means the pin is in special function mode and unset means output.
+*/
+extern int s3c_gpio_setcfg_s3c24xx_a(struct s3c_gpio_chip *chip,
+                                     unsigned int off, unsigned int cfg);
+
+/**
+ * s3c_gpio_setcfg_s3c64xx_4bit - S3C64XX 4bit single register GPIO config.
+ * @chip: The gpio chip that is being configured.
+ * @off: The offset for the GPIO being configured.
+ * @cfg: The configuration value to set.
+ *
+ * This helper deal with the GPIO cases where the control register has 4 bits
+ * of control per GPIO, generally in the form of:
+ *      0000 = Input
+ *      0001 = Output
+ *      others = Special functions (dependant on bank)
+ *
+ * Note, since the code to deal with the case where there are two control
+ * registers instead of one, we do not have a seperate set of functions for
+ * each case.
+*/
+extern int s3c_gpio_setcfg_s3c64xx_4bit(struct s3c_gpio_chip *chip,
+                                        unsigned int off, unsigned int cfg);
+
+
+/* Pull-{up,down} resistor controls.
+ *
+ * S3C2410,S3C2440,S3C24A0 = Pull-UP,
+ * S3C2412,S3C2413 = Pull-Down
+ * S3C6400,S3C6410 = Pull-Both [None,Down,Up,Undef]
+ * S3C2443 = Pull-Both [not same as S3C6400]
+ */
+
+/**
+ * s3c_gpio_setpull_1up() - Pull configuration for choice of up or none.
+ * @chip: The gpio chip that is being configured.
+ * @off: The offset for the GPIO being configured.
+ * @param: pull: The pull mode being requested.
+ *
+ * This is a helper function for the case where we have GPIOs with one
+ * bit configuring the presence of a pull-up resistor.
+ */
+extern int s3c_gpio_setpull_1up(struct s3c_gpio_chip *chip,
+                                unsigned int off, s3c_gpio_pull_t pull);
+
+/**
+ * s3c_gpio_setpull_1down() - Pull configuration for choice of down or none
+ * @chip: The gpio chip that is being configured
+ * @off: The offset for the GPIO being configured
+ * @param: pull: The pull mode being requested
+ *
+ * This is a helper function for the case where we have GPIOs with one
+ * bit configuring the presence of a pull-down resistor.
+ */
+extern int s3c_gpio_setpull_1down(struct s3c_gpio_chip *chip,
+                                  unsigned int off, s3c_gpio_pull_t pull);
+
+/**
+ * s3c_gpio_setpull_upown() - Pull configuration for choice of up, down or none
+ * @chip: The gpio chip that is being configured.
+ * @off: The offset for the GPIO being configured.
+ * @param: pull: The pull mode being requested.
+ *
+ * This is a helper function for the case where we have GPIOs with two
+ * bits configuring the presence of a pull resistor, in the following
+ * order:
+ *      00 = No pull resistor connected
+ *      01 = Pull-up resistor connected
+ *      10 = Pull-down resistor connected
+ */
+extern int s3c_gpio_setpull_updown(struct s3c_gpio_chip *chip,
+                                   unsigned int off, s3c_gpio_pull_t pull);
+
+
+/**
+ * s3c_gpio_getpull_updown() - Get configuration for choice of up, down or none
+ * @chip: The gpio chip that the GPIO pin belongs to
+ * @off: The offset to the pin to get the configuration of.
+ *
+ * This helper function reads the state of the pull-{up,down} resistor for the
+ * given GPIO in the same case as s3c_gpio_setpull_upown.
+*/
+extern s3c_gpio_pull_t s3c_gpio_getpull_updown(struct s3c_gpio_chip *chip,
+                                               unsigned int off);
+
+/**
+ * s3c_gpio_setpull_s3c2443() - Pull configuration for s3c2443.
+ * @chip: The gpio chip that is being configured.
+ * @off: The offset for the GPIO being configured.
+ * @param: pull: The pull mode being requested.
+ *
+ * This is a helper function for the case where we have GPIOs with two
+ * bits configuring the presence of a pull resistor, in the following
+ * order:
+ *      00 = Pull-up resistor connected
+ *      10 = Pull-down resistor connected
+ *      x1 = No pull up resistor
+ */
+extern int s3c_gpio_setpull_s3c2443(struct s3c_gpio_chip *chip,
+                                    unsigned int off, s3c_gpio_pull_t pull);
+
+/**
+ * s3c_gpio_getpull_s3c2443() - Get configuration for s3c2443 pull resistors
+ * @chip: The gpio chip that the GPIO pin belongs to.
+ * @off: The offset to the pin to get the configuration of.
+ *
+ * This helper function reads the state of the pull-{up,down} resistor for the
+ * given GPIO in the same case as s3c_gpio_setpull_upown.
+*/
+extern s3c_gpio_pull_t s3c_gpio_getpull_s3c24xx(struct s3c_gpio_chip *chip,
+                                                unsigned int off);
+
+#endif /* __PLAT_GPIO_CFG_HELPERS_H */
+
diff --git a/arch/arm/plat-s3c/include/plat/gpio-cfg.h b/arch/arm/plat-s3c/include/plat/gpio-cfg.h
new file mode 100644
index 000000000000..29cd6a86cade
--- /dev/null
+++ b/arch/arm/plat-s3c/include/plat/gpio-cfg.h
@@ -0,0 +1,110 @@
+/* linux/arch/arm/plat-s3c/include/plat/gpio-cfg.h
+ *
+ * Copyright 2008 Openmoko, Inc.
+ * Copyright 2008 Simtec Electronics
+ *      http://armlinux.simtec.co.uk/
+ *      Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C Platform - GPIO pin configuration
+ *
+ * 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.
+*/
+
+/* This file contains the necessary definitions to get the basic gpio
+ * pin configuration done such as setting a pin to input or output or
+ * changing the pull-{up,down} configurations.
+ */
+
+/* Note, this interface is being added to the s3c64xx arch first and will
+ * be added to the s3c24xx systems later.
+ */
+
+#ifndef __PLAT_GPIO_CFG_H
+#define __PLAT_GPIO_CFG_H __FILE__
+
+typedef unsigned int __bitwise__ s3c_gpio_pull_t;
+
+/* forward declaration if gpio-core.h hasn't been included */
+struct s3c_gpio_chip;
+
+/**
+ * struct s3c_gpio_cfg GPIO configuration
+ * @cfg_eint: Configuration setting when used for external interrupt source
+ * @get_pull: Read the current pull configuration for the GPIO
+ * @set_pull: Set the current pull configuraiton for the GPIO
+ * @set_config: Set the current configuration for the GPIO
+ * @get_config: Read the current configuration for the GPIO
+ *
+ * Each chip can have more than one type of GPIO bank available and some
+ * have different capabilites even when they have the same control register
+ * layouts. Provide an point to vector control routine and provide any
+ * per-bank configuration information that other systems such as the
+ * external interrupt code will need.
+ */
+struct s3c_gpio_cfg {
+        unsigned int    cfg_eint;
+
+        s3c_gpio_pull_t (*get_pull)(struct s3c_gpio_chip *chip, unsigned offs);
+        int             (*set_pull)(struct s3c_gpio_chip *chip, unsigned offs,
+                                    s3c_gpio_pull_t pull);
+
+        unsigned (*get_config)(struct s3c_gpio_chip *chip, unsigned offs);
+        int      (*set_config)(struct s3c_gpio_chip *chip, unsigned offs,
+                               unsigned config);
+};
+
+#define S3C_GPIO_SPECIAL_MARK   (0xfffffff0)
+#define S3C_GPIO_SPECIAL(x)     (S3C_GPIO_SPECIAL_MARK | (x))
+
+/* Defines for generic pin configurations */
+#define S3C_GPIO_INPUT  (S3C_GPIO_SPECIAL(0))
+#define S3C_GPIO_OUTPUT (S3C_GPIO_SPECIAL(1))
+#define S3C_GPIO_SFN(x) (S3C_GPIO_SPECIAL(x))
+
+#define s3c_gpio_is_cfg_special(_cfg) \
+        (((_cfg) & S3C_GPIO_SPECIAL_MARK) == S3C_GPIO_SPECIAL_MARK)
+
+/**
+ * s3c_gpio_cfgpin() - Change the GPIO function of a pin.
+ * @pin pin The pin number to configure.
+ * @pin to The configuration for the pin's function.
+ *
+ * Configure which function is actually connected to the external
+ * pin, such as an gpio input, output or some form of special function
+ * connected to an internal peripheral block.
+ */
+extern int s3c_gpio_cfgpin(unsigned int pin, unsigned int to);
+
+/* Define values for the pull-{up,down} available for each gpio pin.
+ *
+ * These values control the state of the weak pull-{up,down} resistors
+ * available on most pins on the S3C series. Not all chips support both
+ * up or down settings, and it may be dependant on the chip that is being
+ * used to whether the particular mode is available.
+ */
+#define S3C_GPIO_PULL_NONE      ((__force s3c_gpio_pull_t)0x00)
+#define S3C_GPIO_PULL_DOWN      ((__force s3c_gpio_pull_t)0x01)
+#define S3C_GPIO_PULL_UP        ((__force s3c_gpio_pull_t)0x02)
+
+/**
+ * s3c_gpio_setpull() - set the state of a gpio pin pull resistor
+ * @pin: The pin number to configure the pull resistor.
+ * @pull: The configuration for the pull resistor.
+ *
+ * This function sets the state of the pull-{up,down} resistor for the
+ * specified pin. It will return 0 if successfull, or a negative error
+ * code if the pin cannot support the requested pull setting.
+*/
+extern int s3c_gpio_setpull(unsigned int pin, s3c_gpio_pull_t pull);
+
+/**
+ * s3c_gpio_getpull() - get the pull resistor state of a gpio pin
+ * @pin: The pin number to get the settings for
+ *
+ * Read the pull resistor value for the specified pin.
+*/
+extern s3c_gpio_pull_t s3c_gpio_getpull(unsigned int pin);
+
+#endif /* __PLAT_GPIO_CFG_H */
diff --git a/arch/arm/plat-s3c/include/plat/gpio-core.h b/arch/arm/plat-s3c/include/plat/gpio-core.h
new file mode 100644
index 000000000000..2fc60a580ac8
--- /dev/null
+++ b/arch/arm/plat-s3c/include/plat/gpio-core.h
@@ -0,0 +1,77 @@
+/* linux/arch/arm/plat-s3c/include/plat/gpio-core.h
+ *
+ * Copyright 2008 Simtec Electronics
+ *      http://armlinux.simtec.co.uk/
+ *      Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C Platform - GPIO core
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+/* Define the core gpiolib support functions that the s3c platforms may
+ * need to extend or change depending on the hardware and the s3c chip
+ * selected at build or found at run time.
+ *
+ * These definitions are not intended for driver inclusion, there is
+ * nothing here that should not live outside the platform and core
+ * specific code.
+*/
+
+struct s3c_gpio_cfg;
+
+/**
+ * struct s3c_gpio_chip - wrapper for specific implementation of gpio
+ * @chip: The chip structure to be exported via gpiolib.
+ * @base: The base pointer to the gpio configuration registers.
+ * @config: special function and pull-resistor control information.
+ *
+ * This wrapper provides the necessary information for the Samsung
+ * specific gpios being registered with gpiolib.
+ */
+struct s3c_gpio_chip {
+        struct gpio_chip        chip;
+        struct s3c_gpio_cfg     *config;
+        void __iomem            *base;
+};
+
+static inline struct s3c_gpio_chip *to_s3c_gpio(struct gpio_chip *gpc)
+{
+        return container_of(gpc, struct s3c_gpio_chip, chip);
+}
+
+/** s3c_gpiolib_add() - add the s3c specific version of a gpio_chip.
+ * @chip: The chip to register
+ *
+ * This is a wrapper to gpiochip_add() that takes our specific gpio chip
+ * information and makes the necessary alterations for the platform and
+ * notes the information for use with the configuration systems and any
+ * other parts of the system.
+ */
+extern void s3c_gpiolib_add(struct s3c_gpio_chip *chip);
+
+/* CONFIG_S3C_GPIO_TRACK enables the tracking of the s3c specific gpios
+ * for use with the configuration calls, and other parts of the s3c gpiolib
+ * support code.
+ *
+ * Not all s3c support code will need this, as some configurations of cpu
+ * may only support one or two different configuration options and have an
+ * easy gpio to s3c_gpio_chip mapping function. If this is the case, then
+ * the machine support file should provide its own s3c_gpiolib_getchip()
+ * and any other necessary functions.
+ */
+
+#ifdef CONFIG_S3C_GPIO_TRACK
+extern struct s3c_gpio_chip *s3c_gpios[S3C_GPIO_END];
+
+static inline struct s3c_gpio_chip *s3c_gpiolib_getchip(unsigned int chip)
+{
+        return (chip < S3C_GPIO_END) ? s3c_gpios[chip] : NULL;
+}
+#else
+/* machine specific code should provide s3c_gpiolib_getchip */
+
+static inline void s3c_gpiolib_track(struct s3c_gpio_chip *chip) { }
+#endif
diff --git a/arch/arm/plat-s3c/include/plat/iic-core.h b/arch/arm/plat-s3c/include/plat/iic-core.h
new file mode 100644
index 000000000000..36397ca20962
--- /dev/null
+++ b/arch/arm/plat-s3c/include/plat/iic-core.h
@@ -0,0 +1,35 @@
+/* arch/arm/mach-s3c2410/include/mach/iic-core.h
+ *
+ * Copyright 2008 Openmoko, Inc.
+ * Copyright 2008 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C - I2C Controller core functions
+ *
+ * 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_IIC_CORE_H
+#define __ASM_ARCH_IIC_CORE_H __FILE__
+
+/* These functions are only for use with the core support code, such as
+ * the cpu specific initialisation code
+ */
+
+/* re-define device name depending on support. */
+static inline void s3c_i2c0_setname(char *name)
+{
+        /* currently this device is always compiled in */
+        s3c_device_i2c0.name = name;
+}
+
+static inline void s3c_i2c1_setname(char *name)
+{
+#ifdef CONFIG_S3C_DEV_I2C1
+        s3c_device_i2c1.name = name;
+#endif
+}
+
+#endif /* __ASM_ARCH_IIC_H */
diff --git a/arch/arm/plat-s3c/include/plat/iic.h b/arch/arm/plat-s3c/include/plat/iic.h
index 5106acaa1d0e..dc1dfcb9bc6c 100644
--- a/arch/arm/plat-s3c/include/plat/iic.h
+++ b/arch/arm/plat-s3c/include/plat/iic.h
@@ -28,6 +28,30 @@ struct s3c2410_platform_i2c {
         unsigned long   max_freq;       /* max frequency for the bus */
         unsigned long   min_freq;       /* min frequency for the bus */
         unsigned int    sda_delay;      /* pclks (s3c2440 only) */
+
+        void    (*cfg_gpio)(struct platform_device *dev);
 };
 
+/**
+ * s3c_i2c0_set_platdata - set platform data for i2c0 device
+ * @i2c: The platform data to set, or NULL for default data.
+ *
+ * Register the given platform data for use with the i2c0 device. This
+ * call copies the platform data, so the caller can use __initdata for
+ * their copy.
+ *
+ * This call will set cfg_gpio if is null to the default platform
+ * implementation.
+ *
+ * Any user of s3c_device_i2c0 should call this, even if it is with
+ * NULL to ensure that the device is given the default platform data
+ * as the driver will no longer carry defaults.
+ */
+extern void s3c_i2c0_set_platdata(struct s3c2410_platform_i2c *i2c);
+extern void s3c_i2c1_set_platdata(struct s3c2410_platform_i2c *i2c);
+
+/* defined by architecture to configure gpio */
+extern void s3c_i2c0_cfg_gpio(struct platform_device *dev);
+extern void s3c_i2c1_cfg_gpio(struct platform_device *dev);
+
 #endif /* __ASM_ARCH_IIC_H */
diff --git a/arch/arm/plat-s3c/include/plat/map.h b/arch/arm/plat-s3c/include/plat/map-base.h
index b84289d32a54..b84289d32a54 100644
--- a/arch/arm/plat-s3c/include/plat/map.h
+++ b/arch/arm/plat-s3c/include/plat/map-base.h
diff --git a/arch/arm/plat-s3c/include/plat/regs-fb.h b/arch/arm/plat-s3c/include/plat/regs-fb.h
new file mode 100644
index 000000000000..e9ee599d430e
--- /dev/null
+++ b/arch/arm/plat-s3c/include/plat/regs-fb.h
@@ -0,0 +1,366 @@
+/* arch/arm/plat-s3c/include/plat/regs-fb.h
+ *
+ * Copyright 2008 Openmoko, Inc.
+ * Copyright 2008 Simtec Electronics
+ *      http://armlinux.simtec.co.uk/
+ *      Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C Platform - new-style framebuffer register definitions
+ *
+ * This is the register set for the new style framebuffer interface
+ * found from the S3C2443 onwards into the S3C2416, S3C2450 and the
+ * S3C64XX series such as the S3C6400 and S3C6410.
+ *
+ * The file does not contain the cpu specific items which are based on
+ * whichever architecture is selected, it only contains the core of the
+ * register set. See <mach/regs-fb.h> to get the specifics.
+ *
+ * Note, we changed to using regs-fb.h as it avoids any clashes with
+ * the original regs-lcd.h so out of the way of regs-lcd.h as well as
+ * indicating the newer block is much more than just an LCD interface.
+ *
+ * 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.
+*/
+
+/* Please do not include this file directly, use <mach/regs-fb.h> to
+ * ensure all the localised SoC support is included as necessary.
+*/
+
+/* VIDCON0 */
+
+#define VIDCON0                                 (0x00)
+#define VIDCON0_INTERLACE                       (1 << 29)
+#define VIDCON0_VIDOUT_MASK                     (0x3 << 26)
+#define VIDCON0_VIDOUT_SHIFT                    (26)
+#define VIDCON0_VIDOUT_RGB                      (0x0 << 26)
+#define VIDCON0_VIDOUT_TV                       (0x1 << 26)
+#define VIDCON0_VIDOUT_I80_LDI0                 (0x2 << 26)
+#define VIDCON0_VIDOUT_I80_LDI1                 (0x3 << 26)
+
+#define VIDCON0_L1_DATA_MASK                    (0x7 << 23)
+#define VIDCON0_L1_DATA_SHIFT                   (23)
+#define VIDCON0_L1_DATA_16BPP                   (0x0 << 23)
+#define VIDCON0_L1_DATA_18BPP16                 (0x1 << 23)
+#define VIDCON0_L1_DATA_18BPP9                  (0x2 << 23)
+#define VIDCON0_L1_DATA_24BPP                   (0x3 << 23)
+#define VIDCON0_L1_DATA_18BPP                   (0x4 << 23)
+#define VIDCON0_L1_DATA_16BPP8                  (0x5 << 23)
+
+#define VIDCON0_L0_DATA_MASK                    (0x7 << 20)
+#define VIDCON0_L0_DATA_SHIFT                   (20)
+#define VIDCON0_L0_DATA_16BPP                   (0x0 << 20)
+#define VIDCON0_L0_DATA_18BPP16                 (0x1 << 20)
+#define VIDCON0_L0_DATA_18BPP9                  (0x2 << 20)
+#define VIDCON0_L0_DATA_24BPP                   (0x3 << 20)
+#define VIDCON0_L0_DATA_18BPP                   (0x4 << 20)
+#define VIDCON0_L0_DATA_16BPP8                  (0x5 << 20)
+
+#define VIDCON0_PNRMODE_MASK                    (0x3 << 17)
+#define VIDCON0_PNRMODE_SHIFT                   (17)
+#define VIDCON0_PNRMODE_RGB                     (0x0 << 17)
+#define VIDCON0_PNRMODE_BGR                     (0x1 << 17)
+#define VIDCON0_PNRMODE_SERIAL_RGB              (0x2 << 17)
+#define VIDCON0_PNRMODE_SERIAL_BGR              (0x3 << 17)
+
+#define VIDCON0_CLKVALUP                        (1 << 16)
+#define VIDCON0_CLKVAL_F_MASK                   (0xff << 6)
+#define VIDCON0_CLKVAL_F_SHIFT                  (6)
+#define VIDCON0_CLKVAL_F_LIMIT                  (0xff)
+#define VIDCON0_CLKVAL_F(_x)                    ((_x) << 6)
+#define VIDCON0_VLCKFREE                        (1 << 5)
+#define VIDCON0_CLKDIR                          (1 << 4)
+
+#define VIDCON0_CLKSEL_MASK                     (0x3 << 2)
+#define VIDCON0_CLKSEL_SHIFT                    (2)
+#define VIDCON0_CLKSEL_HCLK                     (0x0 << 2)
+#define VIDCON0_CLKSEL_LCD                      (0x1 << 2)
+#define VIDCON0_CLKSEL_27M                      (0x3 << 2)
+
+#define VIDCON0_ENVID                           (1 << 1)
+#define VIDCON0_ENVID_F                         (1 << 0)
+
+#define VIDCON1                                 (0x04)
+#define VIDCON1_LINECNT_MASK                    (0x7ff << 16)
+#define VIDCON1_LINECNT_SHIFT                   (16)
+#define VIDCON1_LINECNT_GET(_v)                 (((_v) >> 16) & 0x7ff)
+#define VIDCON1_VSTATUS_MASK                    (0x3 << 13)
+#define VIDCON1_VSTATUS_SHIFT                   (13)
+#define VIDCON1_VSTATUS_VSYNC                   (0x0 << 13)
+#define VIDCON1_VSTATUS_BACKPORCH               (0x1 << 13)
+#define VIDCON1_VSTATUS_ACTIVE                  (0x2 << 13)
+#define VIDCON1_VSTATUS_FRONTPORCH              (0x0 << 13)
+
+#define VIDCON1_INV_VCLK                        (1 << 7)
+#define VIDCON1_INV_HSYNC                       (1 << 6)
+#define VIDCON1_INV_VSYNC                       (1 << 5)
+#define VIDCON1_INV_VDEN                        (1 << 4)
+
+/* VIDCON2 */
+
+#define VIDCON2                                 (0x08)
+#define VIDCON2_EN601                           (1 << 23)
+#define VIDCON2_TVFMTSEL_SW                     (1 << 14)
+
+#define VIDCON2_TVFMTSEL1_MASK                  (0x3 << 12)
+#define VIDCON2_TVFMTSEL1_SHIFT                 (12)
+#define VIDCON2_TVFMTSEL1_RGB                   (0x0 << 12)
+#define VIDCON2_TVFMTSEL1_YUV422                (0x1 << 12)
+#define VIDCON2_TVFMTSEL1_YUV444                (0x2 << 12)
+
+#define VIDCON2_ORGYCbCr                        (1 << 8)
+#define VIDCON2_YUVORDCrCb                      (1 << 7)
+
+/* VIDTCON0 */
+
+#define VIDTCON0_VBPDE_MASK                     (0xff << 24)
+#define VIDTCON0_VBPDE_SHIFT                    (24)
+#define VIDTCON0_VBPDE_LIMIT                    (0xff)
+#define VIDTCON0_VBPDE(_x)                      ((_x) << 24)
+
+#define VIDTCON0_VBPD_MASK                      (0xff << 16)
+#define VIDTCON0_VBPD_SHIFT                     (16)
+#define VIDTCON0_VBPD_LIMIT                     (0xff)
+#define VIDTCON0_VBPD(_x)                       ((_x) << 16)
+
+#define VIDTCON0_VFPD_MASK                      (0xff << 8)
+#define VIDTCON0_VFPD_SHIFT                     (8)
+#define VIDTCON0_VFPD_LIMIT                     (0xff)
+#define VIDTCON0_VFPD(_x)                       ((_x) << 8)
+
+#define VIDTCON0_VSPW_MASK                      (0xff << 0)
+#define VIDTCON0_VSPW_SHIFT                     (0)
+#define VIDTCON0_VSPW_LIMIT                     (0xff)
+#define VIDTCON0_VSPW(_x)                       ((_x) << 0)
+
+/* VIDTCON1 */
+
+#define VIDTCON1_VFPDE_MASK                     (0xff << 24)
+#define VIDTCON1_VFPDE_SHIFT                    (24)
+#define VIDTCON1_VFPDE_LIMIT                    (0xff)
+#define VIDTCON1_VFPDE(_x)                      ((_x) << 24)
+
+#define VIDTCON1_HBPD_MASK                      (0xff << 16)
+#define VIDTCON1_HBPD_SHIFT                     (16)
+#define VIDTCON1_HBPD_LIMIT                     (0xff)
+#define VIDTCON1_HBPD(_x)                       ((_x) << 16)
+
+#define VIDTCON1_HFPD_MASK                      (0xff << 8)
+#define VIDTCON1_HFPD_SHIFT                     (8)
+#define VIDTCON1_HFPD_LIMIT                     (0xff)
+#define VIDTCON1_HFPD(_x)                       ((_x) << 8)
+
+#define VIDTCON1_HSPW_MASK                      (0xff << 0)
+#define VIDTCON1_HSPW_SHIFT                     (0)
+#define VIDTCON1_HSPW_LIMIT                     (0xff)
+#define VIDTCON1_HSPW(_x)                       ((_x) << 0)
+
+#define VIDTCON2                                (0x18)
+#define VIDTCON2_LINEVAL_MASK                   (0x7ff << 11)
+#define VIDTCON2_LINEVAL_SHIFT                  (11)
+#define VIDTCON2_LINEVAL_LIMIT                  (0x7ff)
+#define VIDTCON2_LINEVAL(_x)                    ((_x) << 11)
+
+#define VIDTCON2_HOZVAL_MASK                    (0x7ff << 0)
+#define VIDTCON2_HOZVAL_SHIFT                   (0)
+#define VIDTCON2_HOZVAL_LIMIT                   (0x7ff)
+#define VIDTCON2_HOZVAL(_x)                     ((_x) << 0)
+
+/* WINCONx */
+
+
+#define WINCONx_BITSWP                          (1 << 18)
+#define WINCONx_BYTSWP                          (1 << 17)
+#define WINCONx_HAWSWP                          (1 << 16)
+#define WINCONx_BURSTLEN_MASK                   (0x3 << 9)
+#define WINCONx_BURSTLEN_SHIFT                  (9)
+#define WINCONx_BURSTLEN_16WORD                 (0x0 << 9)
+#define WINCONx_BURSTLEN_8WORD                  (0x1 << 9)
+#define WINCONx_BURSTLEN_4WORD                  (0x2 << 9)
+
+#define WINCONx_ENWIN                           (1 << 0)
+#define WINCON0_BPPMODE_MASK                    (0xf << 2)
+#define WINCON0_BPPMODE_SHIFT                   (2)
+#define WINCON0_BPPMODE_1BPP                    (0x0 << 2)
+#define WINCON0_BPPMODE_2BPP                    (0x1 << 2)
+#define WINCON0_BPPMODE_4BPP                    (0x2 << 2)
+#define WINCON0_BPPMODE_8BPP_PALETTE            (0x3 << 2)
+#define WINCON0_BPPMODE_16BPP_565               (0x5 << 2)
+#define WINCON0_BPPMODE_16BPP_1555              (0x7 << 2)
+#define WINCON0_BPPMODE_18BPP_666               (0x8 << 2)
+#define WINCON0_BPPMODE_24BPP_888               (0xb << 2)
+
+#define WINCON1_BLD_PIX                         (1 << 6)
+
+#define WINCON1_ALPHA_SEL                       (1 << 1)
+#define WINCON1_BPPMODE_MASK                    (0xf << 2)
+#define WINCON1_BPPMODE_SHIFT                   (2)
+#define WINCON1_BPPMODE_1BPP                    (0x0 << 2)
+#define WINCON1_BPPMODE_2BPP                    (0x1 << 2)
+#define WINCON1_BPPMODE_4BPP                    (0x2 << 2)
+#define WINCON1_BPPMODE_8BPP_PALETTE            (0x3 << 2)
+#define WINCON1_BPPMODE_8BPP_1232               (0x4 << 2)
+#define WINCON1_BPPMODE_16BPP_565               (0x5 << 2)
+#define WINCON1_BPPMODE_16BPP_A1555             (0x6 << 2)
+#define WINCON1_BPPMODE_16BPP_I1555             (0x7 << 2)
+#define WINCON1_BPPMODE_18BPP_666               (0x8 << 2)
+#define WINCON1_BPPMODE_18BPP_A1665             (0x9 << 2)
+#define WINCON1_BPPMODE_19BPP_A1666             (0xa << 2)
+#define WINCON1_BPPMODE_24BPP_888               (0xb << 2)
+#define WINCON1_BPPMODE_24BPP_A1887             (0xc << 2)
+#define WINCON1_BPPMODE_25BPP_A1888             (0xd << 2)
+#define WINCON1_BPPMODE_28BPP_A4888             (0xd << 2)
+
+
+#define VIDOSDxA_TOPLEFT_X_MASK                 (0x7ff << 11)
+#define VIDOSDxA_TOPLEFT_X_SHIFT                (11)
+#define VIDOSDxA_TOPLEFT_X_LIMIT                (0x7ff)
+#define VIDOSDxA_TOPLEFT_X(_x)                  ((_x) << 11)
+
+#define VIDOSDxA_TOPLEFT_Y_MASK                 (0x7ff << 0)
+#define VIDOSDxA_TOPLEFT_Y_SHIFT                (0)
+#define VIDOSDxA_TOPLEFT_Y_LIMIT                (0x7ff)
+#define VIDOSDxA_TOPLEFT_Y(_x)                  ((_x) << 0)
+
+#define VIDOSDxB_BOTRIGHT_X_MASK                (0x7ff << 11)
+#define VIDOSDxB_BOTRIGHT_X_SHIFT               (11)
+#define VIDOSDxB_BOTRIGHT_X_LIMIT               (0x7ff)
+#define VIDOSDxB_BOTRIGHT_X(_x)                 ((_x) << 11)
+
+#define VIDOSDxB_BOTRIGHT_Y_MASK                (0x7ff << 0)
+#define VIDOSDxB_BOTRIGHT_Y_SHIFT               (0)
+#define VIDOSDxB_BOTRIGHT_Y_LIMIT               (0x7ff)
+#define VIDOSDxB_BOTRIGHT_Y(_x)                 ((_x) << 0)
+
+/* For VIDOSD[1..4]C */
+#define VIDISD14C_ALPHA0_R(_x)                  ((_x) << 20)
+#define VIDISD14C_ALPHA0_G_MASK                 (0xf << 16)
+#define VIDISD14C_ALPHA0_G_SHIFT                (16)
+#define VIDISD14C_ALPHA0_G_LIMIT                (0xf)
+#define VIDISD14C_ALPHA0_G(_x)                  ((_x) << 16)
+#define VIDISD14C_ALPHA0_B_MASK                 (0xf << 12)
+#define VIDISD14C_ALPHA0_B_SHIFT                (12)
+#define VIDISD14C_ALPHA0_B_LIMIT                (0xf)
+#define VIDISD14C_ALPHA0_B(_x)                  ((_x) << 12)
+#define VIDISD14C_ALPHA1_R_MASK                 (0xf << 8)
+#define VIDISD14C_ALPHA1_R_SHIFT                (8)
+#define VIDISD14C_ALPHA1_R_LIMIT                (0xf)
+#define VIDISD14C_ALPHA1_R(_x)                  ((_x) << 8)
+#define VIDISD14C_ALPHA1_G_MASK                 (0xf << 4)
+#define VIDISD14C_ALPHA1_G_SHIFT                (4)
+#define VIDISD14C_ALPHA1_G_LIMIT                (0xf)
+#define VIDISD14C_ALPHA1_G(_x)                  ((_x) << 4)
+#define VIDISD14C_ALPHA1_B_MASK                 (0xf << 0)
+#define VIDISD14C_ALPHA1_B_SHIFT                (0)
+#define VIDISD14C_ALPHA1_B_LIMIT                (0xf)
+#define VIDISD14C_ALPHA1_B(_x)                  ((_x) << 0)
+
+/* Video buffer addresses */
+#define VIDW_BUF_START(_buff)                   (0xA0 + ((_buff) * 8))
+#define VIDW_BUF_START1(_buff)                  (0xA4 + ((_buff) * 8))
+#define VIDW_BUF_END(_buff)                     (0xD0 + ((_buff) * 8))
+#define VIDW_BUF_END1(_buff)                    (0xD4 + ((_buff) * 8))
+#define VIDW_BUF_SIZE(_buff)                    (0x100 + ((_buff) * 4))
+
+#define VIDW_BUF_SIZE_OFFSET_MASK               (0x1fff << 13)
+#define VIDW_BUF_SIZE_OFFSET_SHIFT              (13)
+#define VIDW_BUF_SIZE_OFFSET_LIMIT              (0x1fff)
+#define VIDW_BUF_SIZE_OFFSET(_x)                ((_x) << 13)
+
+#define VIDW_BUF_SIZE_PAGEWIDTH_MASK            (0x1fff << 0)
+#define VIDW_BUF_SIZE_PAGEWIDTH_SHIFT           (0)
+#define VIDW_BUF_SIZE_PAGEWIDTH_LIMIT           (0x1fff)
+#define VIDW_BUF_SIZE_PAGEWIDTH(_x)             ((_x) << 0)
+
+/* Interrupt controls and status */
+
+#define VIDINTCON0_FIFOINTERVAL_MASK            (0x3f << 20)
+#define VIDINTCON0_FIFOINTERVAL_SHIFT           (20)
+#define VIDINTCON0_FIFOINTERVAL_LIMIT           (0x3f)
+#define VIDINTCON0_FIFOINTERVAL(_x)             ((_x) << 20)
+
+#define VIDINTCON0_INT_SYSMAINCON               (1 << 19)
+#define VIDINTCON0_INT_SYSSUBCON                (1 << 18)
+#define VIDINTCON0_INT_I80IFDONE                (1 << 17)
+
+#define VIDINTCON0_FRAMESEL0_MASK               (0x3 << 15)
+#define VIDINTCON0_FRAMESEL0_SHIFT              (15)
+#define VIDINTCON0_FRAMESEL0_BACKPORCH          (0x0 << 15)
+#define VIDINTCON0_FRAMESEL0_VSYNC              (0x1 << 15)
+#define VIDINTCON0_FRAMESEL0_ACTIVE             (0x2 << 15)
+#define VIDINTCON0_FRAMESEL0_FRONTPORCH         (0x3 << 15)
+
+#define VIDINTCON0_FRAMESEL1                    (1 << 14)
+#define VIDINTCON0_FRAMESEL1_NONE               (0x0 << 14)
+#define VIDINTCON0_FRAMESEL1_BACKPORCH          (0x1 << 14)
+#define VIDINTCON0_FRAMESEL1_VSYNC              (0x2 << 14)
+#define VIDINTCON0_FRAMESEL1_FRONTPORCH         (0x3 << 14)
+
+#define VIDINTCON0_INT_FRAME                    (1 << 12)
+#define VIDINTCON0_FIFIOSEL_MASK                (0x7f << 5)
+#define VIDINTCON0_FIFIOSEL_SHIFT               (5)
+#define VIDINTCON0_FIFIOSEL_WINDOW0             (0x1 << 5)
+#define VIDINTCON0_FIFIOSEL_WINDOW1             (0x2 << 5)
+
+#define VIDINTCON0_FIFOLEVEL_MASK               (0x7 << 2)
+#define VIDINTCON0_FIFOLEVEL_SHIFT              (2)
+#define VIDINTCON0_FIFOLEVEL_TO25PC             (0x0 << 2)
+#define VIDINTCON0_FIFOLEVEL_TO50PC             (0x1 << 2)
+#define VIDINTCON0_FIFOLEVEL_TO75PC             (0x2 << 2)
+#define VIDINTCON0_FIFOLEVEL_EMPTY              (0x3 << 2)
+#define VIDINTCON0_FIFOLEVEL_FULL               (0x4 << 2)
+
+#define VIDINTCON0_INT_FIFO_MASK                (0x3 << 0)
+#define VIDINTCON0_INT_FIFO_SHIFT               (0)
+#define VIDINTCON0_INT_ENABLE                   (1 << 0)
+
+#define VIDINTCON1                              (0x134)
+#define VIDINTCON1_INT_I180                     (1 << 2)
+#define VIDINTCON1_INT_FRAME                    (1 << 1)
+#define VIDINTCON1_INT_FIFO                     (1 << 0)
+
+/* Window colour-key control registers */
+
+#define WxKEYCON0_KEYBL_EN                      (1 << 26)
+#define WxKEYCON0_KEYEN_F                       (1 << 25)
+#define WxKEYCON0_DIRCON                        (1 << 24)
+#define WxKEYCON0_COMPKEY_MASK                  (0xffffff << 0)
+#define WxKEYCON0_COMPKEY_SHIFT                 (0)
+#define WxKEYCON0_COMPKEY_LIMIT                 (0xffffff)
+#define WxKEYCON0_COMPKEY(_x)                   ((_x) << 0)
+#define WxKEYCON1_COLVAL_MASK                   (0xffffff << 0)
+#define WxKEYCON1_COLVAL_SHIFT                  (0)
+#define WxKEYCON1_COLVAL_LIMIT                  (0xffffff)
+#define WxKEYCON1_COLVAL(_x)                    ((_x) << 0)
+
+
+/* Window blanking (MAP) */
+
+#define WINxMAP_MAP                             (1 << 24)
+#define WINxMAP_MAP_COLOUR_MASK                 (0xffffff << 0)
+#define WINxMAP_MAP_COLOUR_SHIFT                (0)
+#define WINxMAP_MAP_COLOUR_LIMIT                (0xffffff)
+#define WINxMAP_MAP_COLOUR(_x)                  ((_x) << 0)
+
+#define WPALCON_PAL_UPDATE                      (1 << 9)
+#define WPALCON_W1PAL_MASK                      (0x7 << 3)
+#define WPALCON_W1PAL_SHIFT                     (3)
+#define WPALCON_W1PAL_25BPP_A888                (0x0 << 3)
+#define WPALCON_W1PAL_24BPP                     (0x1 << 3)
+#define WPALCON_W1PAL_19BPP_A666                (0x2 << 3)
+#define WPALCON_W1PAL_18BPP_A665                (0x3 << 3)
+#define WPALCON_W1PAL_18BPP                     (0x4 << 3)
+#define WPALCON_W1PAL_16BPP_A555                (0x5 << 3)
+#define WPALCON_W1PAL_16BPP_565                 (0x6 << 3)
+
+#define WPALCON_W0PAL_MASK                      (0x7 << 0)
+#define WPALCON_W0PAL_SHIFT                     (0)
+#define WPALCON_W0PAL_25BPP_A888                (0x0 << 0)
+#define WPALCON_W0PAL_24BPP                     (0x1 << 0)
+#define WPALCON_W0PAL_19BPP_A666                (0x2 << 0)
+#define WPALCON_W0PAL_18BPP_A665                (0x3 << 0)
+#define WPALCON_W0PAL_18BPP                     (0x4 << 0)
+#define WPALCON_W0PAL_16BPP_A555                (0x5 << 0)
+#define WPALCON_W0PAL_16BPP_565                 (0x6 << 0)
+
diff --git a/arch/arm/plat-s3c/include/plat/regs-irqtype.h b/arch/arm/plat-s3c/include/plat/regs-irqtype.h
new file mode 100644
index 000000000000..c63cd3fc5ad3
--- /dev/null
+++ b/arch/arm/plat-s3c/include/plat/regs-irqtype.h
@@ -0,0 +1,21 @@
+/* arch/arm/plat-s3c/include/plat/regs-irqtype.h
+ *
+ * Copyright 2008 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *      http://armlinux.simtec.co.uk/
+ *
+ * S3C - IRQ detection types.
+ *
+ * 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.
+ */
+
+/* values for S3C2410_EXTINT0/1/2 and other cpus in the series, including
+ * the S3C64XX
+*/
+#define S3C2410_EXTINT_LOWLEV    (0x00)
+#define S3C2410_EXTINT_HILEV     (0x01)
+#define S3C2410_EXTINT_FALLEDGE  (0x02)
+#define S3C2410_EXTINT_RISEEDGE  (0x04)
+#define S3C2410_EXTINT_BOTHEDGE  (0x06)
diff --git a/arch/arm/plat-s3c/include/plat/regs-sdhci.h b/arch/arm/plat-s3c/include/plat/regs-sdhci.h
new file mode 100644
index 000000000000..e34049ad44cc
--- /dev/null
+++ b/arch/arm/plat-s3c/include/plat/regs-sdhci.h
@@ -0,0 +1,87 @@
+/* linux/arch/arm/plat-s3c/include/plat/regs-sdhci.h
+ *
+ * Copyright 2008 Openmoko, Inc.
+ * Copyright 2008 Simtec Electronics
+ *      http://armlinux.simtec.co.uk/
+ *      Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C Platform - SDHCI (HSMMC) 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 __PLAT_S3C_SDHCI_REGS_H
+#define __PLAT_S3C_SDHCI_REGS_H __FILE__
+
+#define S3C_SDHCI_CONTROL2                      (0x80)
+#define S3C_SDHCI_CONTROL3                      (0x84)
+#define S3C64XX_SDHCI_CONTROL4                  (0x8C)
+
+#define S3C64XX_SDHCI_CTRL2_ENSTAASYNCCLR       (1 << 31)
+#define S3C64XX_SDHCI_CTRL2_ENCMDCNFMSK         (1 << 30)
+#define S3C_SDHCI_CTRL2_CDINVRXD3               (1 << 29)
+#define S3C_SDHCI_CTRL2_SLCARDOUT               (1 << 28)
+
+#define S3C_SDHCI_CTRL2_FLTCLKSEL_MASK          (0xf << 24)
+#define S3C_SDHCI_CTRL2_FLTCLKSEL_SHIFT         (24)
+#define S3C_SDHCI_CTRL2_FLTCLKSEL(_x)           ((_x) << 24)
+
+#define S3C_SDHCI_CTRL2_LVLDAT_MASK             (0xff << 16)
+#define S3C_SDHCI_CTRL2_LVLDAT_SHIFT            (16)
+#define S3C_SDHCI_CTRL2_LVLDAT(_x)              ((_x) << 16)
+
+#define S3C_SDHCI_CTRL2_ENFBCLKTX               (1 << 15)
+#define S3C_SDHCI_CTRL2_ENFBCLKRX               (1 << 14)
+#define S3C_SDHCI_CTRL2_SDCDSEL                 (1 << 13)
+#define S3C_SDHCI_CTRL2_SDSIGPC                 (1 << 12)
+#define S3C_SDHCI_CTRL2_ENBUSYCHKTXSTART        (1 << 11)
+
+#define S3C_SDHCI_CTRL2_DFCNT_MASK              (0x3 << 9)
+#define S3C_SDHCI_CTRL2_DFCNT_SHIFT             (9)
+#define S3C_SDHCI_CTRL2_DFCNT_NONE              (0x0 << 9)
+#define S3C_SDHCI_CTRL2_DFCNT_4SDCLK            (0x1 << 9)
+#define S3C_SDHCI_CTRL2_DFCNT_16SDCLK           (0x2 << 9)
+#define S3C_SDHCI_CTRL2_DFCNT_64SDCLK           (0x3 << 9)
+
+#define S3C_SDHCI_CTRL2_ENCLKOUTHOLD            (1 << 8)
+#define S3C_SDHCI_CTRL2_RWAITMODE               (1 << 7)
+#define S3C_SDHCI_CTRL2_DISBUFRD                (1 << 6)
+#define S3C_SDHCI_CTRL2_SELBASECLK_MASK         (0x3 << 4)
+#define S3C_SDHCI_CTRL2_SELBASECLK_SHIFT        (4)
+#define S3C_SDHCI_CTRL2_PWRSYNC                 (1 << 3)
+#define S3C_SDHCI_CTRL2_ENCLKOUTMSKCON          (1 << 1)
+#define S3C_SDHCI_CTRL2_HWINITFIN               (1 << 0)
+
+#define S3C_SDHCI_CTRL3_FCSEL3                  (1 << 31)
+#define S3C_SDHCI_CTRL3_FCSEL2                  (1 << 23)
+#define S3C_SDHCI_CTRL3_FCSEL1                  (1 << 15)
+#define S3C_SDHCI_CTRL3_FCSEL0                  (1 << 7)
+
+#define S3C_SDHCI_CTRL3_FIA3_MASK               (0x7f << 24)
+#define S3C_SDHCI_CTRL3_FIA3_SHIFT              (24)
+#define S3C_SDHCI_CTRL3_FIA3(_x)                ((_x) << 24)
+
+#define S3C_SDHCI_CTRL3_FIA2_MASK               (0x7f << 16)
+#define S3C_SDHCI_CTRL3_FIA2_SHIFT              (16)
+#define S3C_SDHCI_CTRL3_FIA2(_x)                ((_x) << 16)
+
+#define S3C_SDHCI_CTRL3_FIA1_MASK               (0x7f << 8)
+#define S3C_SDHCI_CTRL3_FIA1_SHIFT              (8)
+#define S3C_SDHCI_CTRL3_FIA1(_x)                ((_x) << 8)
+
+#define S3C_SDHCI_CTRL3_FIA0_MASK               (0x7f << 0)
+#define S3C_SDHCI_CTRL3_FIA0_SHIFT              (0)
+#define S3C_SDHCI_CTRL3_FIA0(_x)                ((_x) << 0)
+
+#define S3C64XX_SDHCI_CONTROL4_DRIVE_MASK       (0x3 << 16)
+#define S3C64XX_SDHCI_CONTROL4_DRIVE_SHIFT      (16)
+#define S3C64XX_SDHCI_CONTROL4_DRIVE_2mA        (0x0 << 16)
+#define S3C64XX_SDHCI_CONTROL4_DRIVE_4mA        (0x1 << 16)
+#define S3C64XX_SDHCI_CONTROL4_DRIVE_7mA        (0x2 << 16)
+#define S3C64XX_SDHCI_CONTROL4_DRIVE_9mA        (0x3 << 16)
+
+#define S3C64XX_SDHCI_CONTROL4_BUSY             (1)
+
+#endif /* __PLAT_S3C_SDHCI_REGS_H */
diff --git a/arch/arm/plat-s3c/include/plat/regs-serial.h b/arch/arm/plat-s3c/include/plat/regs-serial.h
index a0daa647b92c..487d7d2a7e1d 100644
--- a/arch/arm/plat-s3c/include/plat/regs-serial.h
+++ b/arch/arm/plat-s3c/include/plat/regs-serial.h
@@ -77,6 +77,12 @@
 #define S3C2440_UCON_FCLK         (3<<10)
 #define S3C2443_UCON_EPLL         (3<<10)
 
+#define S3C6400_UCON_CLKMASK    (3<<10)
+#define S3C6400_UCON_PCLK       (0<<10)
+#define S3C6400_UCON_PCLK2      (2<<10)
+#define S3C6400_UCON_UCLK0      (1<<10)
+#define S3C6400_UCON_UCLK1      (3<<10)
+
 #define S3C2440_UCON2_FCLK_EN     (1<<15)
 #define S3C2440_UCON0_DIVMASK     (15 << 12)
 #define S3C2440_UCON1_DIVMASK     (15 << 12)
@@ -149,6 +155,14 @@
 #define S3C2410_UFSTAT_RXMASK     (15<<0)
 #define S3C2410_UFSTAT_RXSHIFT    (0)
 
+/* UFSTAT S3C24A0 */
+#define S3C24A0_UFSTAT_TXFULL     (1 << 14)
+#define S3C24A0_UFSTAT_RXFULL     (1 << 6)
+#define S3C24A0_UFSTAT_TXMASK     (63 << 8)
+#define S3C24A0_UFSTAT_TXSHIFT    (8)
+#define S3C24A0_UFSTAT_RXMASK     (63)
+#define S3C24A0_UFSTAT_RXSHIFT    (0)
+
 /* UFSTAT S3C2443 same as S3C2440 */
 #define S3C2440_UFSTAT_TXFULL     (1<<14)
 #define S3C2440_UFSTAT_RXFULL     (1<<6)
@@ -224,7 +238,7 @@ struct s3c2410_uartcfg {
  * or platform_add_device() before the console_initcall()
 */
 
-extern struct platform_device *s3c24xx_uart_devs[3];
+extern struct platform_device *s3c24xx_uart_devs[4];
 
 #endif /* __ASSEMBLY__ */
 
diff --git a/arch/arm/plat-s3c/include/plat/regs-timer.h b/arch/arm/plat-s3c/include/plat/regs-timer.h
index cc0eedd53e38..d097d92f8cc7 100644
--- a/arch/arm/plat-s3c/include/plat/regs-timer.h
+++ b/arch/arm/plat-s3c/include/plat/regs-timer.h
@@ -10,7 +10,6 @@
  * S3C2410 Timer configuration
 */
 
-
 #ifndef __ASM_ARCH_REGS_TIMER_H
 #define __ASM_ARCH_REGS_TIMER_H
 
@@ -21,6 +20,8 @@
 #define S3C2410_TCFG1         S3C_TIMERREG(0x04)
 #define S3C2410_TCON          S3C_TIMERREG(0x08)
 
+#define S3C64XX_TINT_CSTAT    S3C_TIMERREG(0x44)
+
 #define S3C2410_TCFG_PRESCALER0_MASK (255<<0)
 #define S3C2410_TCFG_PRESCALER1_MASK (255<<8)
 #define S3C2410_TCFG_PRESCALER1_SHIFT (8)
@@ -72,6 +73,14 @@
 #define S3C2410_TCFG1_MUX_TCLK    (4<<0)
 #define S3C2410_TCFG1_MUX_MASK    (15<<0)
 
+#define S3C64XX_TCFG1_MUX_DIV1    (0<<0)
+#define S3C64XX_TCFG1_MUX_DIV2    (1<<0)
+#define S3C64XX_TCFG1_MUX_DIV4    (2<<0)
+#define S3C64XX_TCFG1_MUX_DIV8    (3<<0)
+#define S3C64XX_TCFG1_MUX_DIV16   (4<<0)
+#define S3C64XX_TCFG1_MUX_TCLK    (5<<0)  /* 3 sets of TCLK */
+#define S3C64XX_TCFG1_MUX_MASK    (15<<0)
+
 #define S3C2410_TCFG1_SHIFT(x)    ((x) * 4)
 
 /* for each timer, we have an count buffer, an compare buffer and
diff --git a/arch/arm/plat-s3c/include/plat/sdhci.h b/arch/arm/plat-s3c/include/plat/sdhci.h
new file mode 100644
index 000000000000..c4ca3920ca4b
--- /dev/null
+++ b/arch/arm/plat-s3c/include/plat/sdhci.h
@@ -0,0 +1,108 @@
+/* linux/arch/arm/plat-s3c/include/plat/sdhci.h
+ *
+ * Copyright 2008 Openmoko, Inc.
+ * Copyright 2008 Simtec Electronics
+ *      http://armlinux.simtec.co.uk/
+ *      Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C Platform - SDHCI (HSMMC) platform data 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 __PLAT_S3C_SDHCI_H
+#define __PLAT_S3C_SDHCI_H __FILE__
+
+struct platform_device;
+struct mmc_host;
+struct mmc_card;
+struct mmc_ios;
+
+/**
+ * struct s3c_sdhci_platdata() - Platform device data for Samsung SDHCI
+ * @max_width: The maximum number of data bits supported.
+ * @host_caps: Standard MMC host capabilities bit field.
+ * @cfg_gpio: Configure the GPIO for a specific card bit-width
+ * @cfg_card: Configure the interface for a specific card and speed. This
+ *            is necessary the controllers and/or GPIO blocks require the
+ *            changing of driver-strength and other controls dependant on
+ *            the card and speed of operation.
+ *
+ * Initialisation data specific to either the machine or the platform
+ * for the device driver to use or call-back when configuring gpio or
+ * card speed information.
+*/
+struct s3c_sdhci_platdata {
+        unsigned int    max_width;
+        unsigned int    host_caps;
+
+        char            **clocks;       /* set of clock sources */
+
+        void    (*cfg_gpio)(struct platform_device *dev, int width);
+        void    (*cfg_card)(struct platform_device *dev,
+                            void __iomem *regbase,
+                            struct mmc_ios *ios,
+                            struct mmc_card *card);
+};
+
+/**
+ * s3c_sdhci0_set_platdata - Set platform data for S3C SDHCI device.
+ * @pd: Platform data to register to device.
+ *
+ * Register the given platform data for use withe S3C SDHCI device.
+ * The call will copy the platform data, so the board definitions can
+ * make the structure itself __initdata.
+ */
+extern void s3c_sdhci0_set_platdata(struct s3c_sdhci_platdata *pd);
+extern void s3c_sdhci1_set_platdata(struct s3c_sdhci_platdata *pd);
+
+/* Default platform data, exported so that per-cpu initialisation can
+ * set the correct one when there are more than one cpu type selected.
+*/
+
+extern struct s3c_sdhci_platdata s3c_hsmmc0_def_platdata;
+extern struct s3c_sdhci_platdata s3c_hsmmc1_def_platdata;
+
+/* Helper function availablity */
+
+#ifdef CONFIG_S3C6410_SETUP_SDHCI
+extern char *s3c6410_hsmmc_clksrcs[4];
+
+extern void s3c6410_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
+extern void s3c6410_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
+
+extern void s3c6410_setup_sdhci0_cfg_card(struct platform_device *dev,
+                                           void __iomem *r,
+                                           struct mmc_ios *ios,
+                                           struct mmc_card *card);
+
+#ifdef CONFIG_S3C_DEV_HSMMC
+static inline void s3c6410_default_sdhci0(void)
+{
+        s3c_hsmmc0_def_platdata.clocks = s3c6410_hsmmc_clksrcs;
+        s3c_hsmmc0_def_platdata.cfg_gpio = s3c6410_setup_sdhci0_cfg_gpio;
+        s3c_hsmmc0_def_platdata.cfg_card = s3c6410_setup_sdhci0_cfg_card;
+}
+#else
+static inline void s3c6410_default_sdhci0(void) { }
+#endif /* CONFIG_S3C_DEV_HSMMC */
+
+#ifdef CONFIG_S3C_DEV_HSMMC1
+static inline void s3c6410_default_sdhci1(void)
+{
+        s3c_hsmmc1_def_platdata.clocks = s3c6410_hsmmc_clksrcs;
+        s3c_hsmmc1_def_platdata.cfg_gpio = s3c6410_setup_sdhci1_cfg_gpio;
+        s3c_hsmmc1_def_platdata.cfg_card = s3c6410_setup_sdhci0_cfg_card;
+}
+#else
+static inline void s3c6410_default_sdhci1(void) { }
+#endif /* CONFIG_S3C_DEV_HSMMC1 */
+
+#else
+static inline void s3c6410_default_sdhci0(void) { }
+static inline void s3c6410_default_sdhci1(void) { }
+#endif /* CONFIG_S3C6410_SETUP_SDHCI */
+
+#endif /* __PLAT_S3C_SDHCI_H */
diff --git a/arch/arm/plat-s3c/include/plat/uncompress.h b/arch/arm/plat-s3c/include/plat/uncompress.h
index 8a8a927292e0..6061de87f225 100644
--- a/arch/arm/plat-s3c/include/plat/uncompress.h
+++ b/arch/arm/plat-s3c/include/plat/uncompress.h
@@ -37,7 +37,7 @@ static void arch_detect_cpu(void);
 /* how many bytes we allow into the FIFO at a time in FIFO mode */
 #define FIFO_MAX         (14)
 
-#define uart_base S3C24XX_PA_UART + (0x4000*CONFIG_S3C_LOWLEVEL_UART_PORT)
+#define uart_base S3C_PA_UART + (S3C_UART_OFFSET * CONFIG_S3C_LOWLEVEL_UART_PORT)
 
 static __inline__ void
 uart_wr(unsigned int reg, unsigned int val)
@@ -139,6 +139,28 @@ static void arch_decomp_error(const char *x)
 
 static void error(char *err);
 
+#ifdef CONFIG_S3C_BOOT_UART_FORCE_FIFO
+static inline void arch_enable_uart_fifo(void)
+{
+        u32 fifocon = uart_rd(S3C2410_UFCON);
+
+        if (!(fifocon & S3C2410_UFCON_FIFOMODE)) {
+                fifocon |= S3C2410_UFCON_RESETBOTH;
+                uart_wr(S3C2410_UFCON, fifocon);
+
+                /* wait for fifo reset to complete */
+                while (1) {
+                        fifocon = uart_rd(S3C2410_UFCON);
+                        if (!(fifocon & S3C2410_UFCON_RESETBOTH))
+                                break;
+                }
+        }
+}
+#else
+#define arch_enable_uart_fifo() do { } while(0)
+#endif
+
+
 static void
 arch_decomp_setup(void)
 {
@@ -149,6 +171,12 @@ arch_decomp_setup(void)
 
         arch_detect_cpu();
         arch_decomp_wdog_start();
+
+        /* Enable the UART FIFOs if they where not enabled and our
+         * configuration says we should turn them on.
+         */
+
+        arch_enable_uart_fifo();
 }
 
 
diff --git a/arch/arm/plat-s3c/init.c b/arch/arm/plat-s3c/init.c
new file mode 100644
index 000000000000..6790edfaca6f
--- /dev/null
+++ b/arch/arm/plat-s3c/init.c
@@ -0,0 +1,160 @@
+/* linux/arch/arm/plat-s3c/init.c
+ *
+ * Copyright (c) 2008 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *      http://armlinux.simtec.co.uk/
+ *
+ * S3C series CPU initialisation
+ *
+ * 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/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/serial_core.h>
+#include <linux/platform_device.h>
+
+#include <mach/hardware.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include <plat/cpu.h>
+#include <plat/devs.h>
+#include <plat/clock.h>
+
+#include <plat/regs-serial.h>
+
+static struct cpu_table *cpu;
+
+static struct cpu_table * __init s3c_lookup_cpu(unsigned long idcode,
+                                                struct cpu_table *tab,
+                                                unsigned int count)
+{
+        for (; count != 0; count--, tab++) {
+                if ((idcode & tab->idmask) == tab->idcode)
+                        return tab;
+        }
+
+        return NULL;
+}
+
+void __init s3c_init_cpu(unsigned long idcode,
+                         struct cpu_table *cputab, unsigned int cputab_size)
+{
+        cpu = s3c_lookup_cpu(idcode, cputab, cputab_size);
+
+        if (cpu == NULL) {
+                printk(KERN_ERR "Unknown CPU type 0x%08lx\n", idcode);
+                panic("Unknown S3C24XX CPU");
+        }
+
+        printk("CPU %s (id 0x%08lx)\n", cpu->name, idcode);
+
+        if (cpu->map_io == NULL || cpu->init == NULL) {
+                printk(KERN_ERR "CPU %s support not enabled\n", cpu->name);
+                panic("Unsupported Samsung CPU");
+        }
+
+        cpu->map_io();
+}
+
+/* s3c24xx_init_clocks
+ *
+ * Initialise the clock subsystem and associated information from the
+ * given master crystal value.
+ *
+ * xtal  = 0 -> use default PLL crystal value (normally 12MHz)
+ *      != 0 -> PLL crystal value in Hz
+*/
+
+void __init s3c24xx_init_clocks(int xtal)
+{
+        if (xtal == 0)
+                xtal = 12*1000*1000;
+
+        if (cpu == NULL)
+                panic("s3c24xx_init_clocks: no cpu setup?\n");
+
+        if (cpu->init_clocks == NULL)
+                panic("s3c24xx_init_clocks: cpu has no clock init\n");
+        else
+                (cpu->init_clocks)(xtal);
+}
+
+/* uart management */
+
+static int nr_uarts __initdata = 0;
+
+static struct s3c2410_uartcfg uart_cfgs[CONFIG_SERIAL_SAMSUNG_UARTS];
+
+/* s3c24xx_init_uartdevs
+ *
+ * copy the specified platform data and configuration into our central
+ * set of devices, before the data is thrown away after the init process.
+ *
+ * This also fills in the array passed to the serial driver for the
+ * early initialisation of the console.
+*/
+
+void __init s3c24xx_init_uartdevs(char *name,
+                                  struct s3c24xx_uart_resources *res,
+                                  struct s3c2410_uartcfg *cfg, int no)
+{
+        struct platform_device *platdev;
+        struct s3c2410_uartcfg *cfgptr = uart_cfgs;
+        struct s3c24xx_uart_resources *resp;
+        int uart;
+
+        memcpy(cfgptr, cfg, sizeof(struct s3c2410_uartcfg) * no);
+
+        for (uart = 0; uart < no; uart++, cfg++, cfgptr++) {
+                platdev = s3c24xx_uart_src[cfgptr->hwport];
+
+                resp = res + cfgptr->hwport;
+
+                s3c24xx_uart_devs[uart] = platdev;
+
+                platdev->name = name;
+                platdev->resource = resp->resources;
+                platdev->num_resources = resp->nr_resources;
+
+                platdev->dev.platform_data = cfgptr;
+        }
+
+        nr_uarts = no;
+}
+
+void __init s3c24xx_init_uarts(struct s3c2410_uartcfg *cfg, int no)
+{
+        if (cpu == NULL)
+                return;
+
+        if (cpu->init_uarts == NULL) {
+                printk(KERN_ERR "s3c24xx_init_uarts: cpu has no uart init\n");
+        } else
+                (cpu->init_uarts)(cfg, no);
+}
+
+static int __init s3c_arch_init(void)
+{
+        int ret;
+
+        // do the correct init for cpu
+
+        if (cpu == NULL)
+                panic("s3c_arch_init: NULL cpu\n");
+
+        ret = (cpu->init)();
+        if (ret != 0)
+                return ret;
+
+        ret = platform_add_devices(s3c24xx_uart_devs, nr_uarts);
+        return ret;
+}
+
+arch_initcall(s3c_arch_init);
diff --git a/arch/arm/plat-s3c/pwm-clock.c b/arch/arm/plat-s3c/pwm-clock.c
new file mode 100644
index 000000000000..a318215ab535
--- /dev/null
+++ b/arch/arm/plat-s3c/pwm-clock.c
@@ -0,0 +1,463 @@
+/* linux/arch/arm/plat-s3c24xx/pwm-clock.c
+ *
+ * Copyright (c) 2007 Simtec Electronics
+ * Copyright (c) 2007, 2008 Ben Dooks
+ *      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 as published by
+ * the Free Software Foundation; either version 2 of the License.
+*/
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/errno.h>
+#include <linux/log2.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/io.h>
+
+#include <mach/hardware.h>
+#include <mach/map.h>
+#include <asm/irq.h>
+
+#include <plat/clock.h>
+#include <plat/cpu.h>
+
+#include <plat/regs-timer.h>
+#include <mach/pwm-clock.h>
+
+/* Each of the timers 0 through 5 go through the following
+ * clock tree, with the inputs depending on the timers.
+ *
+ * pclk ---- [ prescaler 0 ] -+---> timer 0
+ *                            +---> timer 1
+ *
+ * pclk ---- [ prescaler 1 ] -+---> timer 2
+ *                            +---> timer 3
+ *                            \---> timer 4
+ *
+ * Which are fed into the timers as so:
+ *
+ * prescaled 0 ---- [ div 2,4,8,16 ] ---\
+ *                                     [mux] -> timer 0
+ * tclk 0 ------------------------------/
+ *
+ * prescaled 0 ---- [ div 2,4,8,16 ] ---\
+ *                                     [mux] -> timer 1
+ * tclk 0 ------------------------------/
+ *
+ *
+ * prescaled 1 ---- [ div 2,4,8,16 ] ---\
+ *                                     [mux] -> timer 2
+ * tclk 1 ------------------------------/
+ *
+ * prescaled 1 ---- [ div 2,4,8,16 ] ---\
+ *                                     [mux] -> timer 3
+ * tclk 1 ------------------------------/
+ *
+ * prescaled 1 ---- [ div 2,4,8, 16 ] --\
+ *                                     [mux] -> timer 4
+ * tclk 1 ------------------------------/
+ *
+ * Since the mux and the divider are tied together in the
+ * same register space, it is impossible to set the parent
+ * and the rate at the same time. To avoid this, we add an
+ * intermediate 'prescaled-and-divided' clock to select
+ * as the parent for the timer input clock called tdiv.
+ *
+ * prescaled clk --> pwm-tdiv ---\
+ *                             [ mux ] --> timer X
+ * tclk -------------------------/
+*/
+
+static struct clk clk_timer_scaler[];
+
+static unsigned long clk_pwm_scaler_get_rate(struct clk *clk)
+{
+        unsigned long tcfg0 = __raw_readl(S3C2410_TCFG0);
+
+        if (clk == &clk_timer_scaler[1]) {
+                tcfg0 &= S3C2410_TCFG_PRESCALER1_MASK;
+                tcfg0 >>= S3C2410_TCFG_PRESCALER1_SHIFT;
+        } else {
+                tcfg0 &= S3C2410_TCFG_PRESCALER0_MASK;
+        }
+
+        return clk_get_rate(clk->parent) / (tcfg0 + 1);
+}
+
+static unsigned long clk_pwm_scaler_round_rate(struct clk *clk,
+                                               unsigned long rate)
+{
+        unsigned long parent_rate = clk_get_rate(clk->parent);
+        unsigned long divisor = parent_rate / rate;
+
+        if (divisor > 256)
+                divisor = 256;
+        else if (divisor < 2)
+                divisor = 2;
+
+        return parent_rate / divisor;
+}
+
+static int clk_pwm_scaler_set_rate(struct clk *clk, unsigned long rate)
+{
+        unsigned long round = clk_pwm_scaler_round_rate(clk, rate);
+        unsigned long tcfg0;
+        unsigned long divisor;
+        unsigned long flags;
+
+        divisor = clk_get_rate(clk->parent) / round;
+        divisor--;
+
+        local_irq_save(flags);
+        tcfg0 = __raw_readl(S3C2410_TCFG0);
+
+        if (clk == &clk_timer_scaler[1]) {
+                tcfg0 &= ~S3C2410_TCFG_PRESCALER1_MASK;
+                tcfg0 |= divisor << S3C2410_TCFG_PRESCALER1_SHIFT;
+        } else {
+                tcfg0 &= ~S3C2410_TCFG_PRESCALER0_MASK;
+                tcfg0 |= divisor;
+        }
+
+        __raw_writel(tcfg0, S3C2410_TCFG0);
+        local_irq_restore(flags);
+
+        return 0;
+}
+
+static struct clk clk_timer_scaler[] = {
+        [0]     = {
+                .name           = "pwm-scaler0",
+                .id             = -1,
+                .get_rate       = clk_pwm_scaler_get_rate,
+                .set_rate       = clk_pwm_scaler_set_rate,
+                .round_rate     = clk_pwm_scaler_round_rate,
+        },
+        [1]     = {
+                .name           = "pwm-scaler1",
+                .id             = -1,
+                .get_rate       = clk_pwm_scaler_get_rate,
+                .set_rate       = clk_pwm_scaler_set_rate,
+                .round_rate     = clk_pwm_scaler_round_rate,
+        },
+};
+
+static struct clk clk_timer_tclk[] = {
+        [0]     = {
+                .name           = "pwm-tclk0",
+                .id             = -1,
+        },
+        [1]     = {
+                .name           = "pwm-tclk1",
+                .id             = -1,
+        },
+};
+
+struct pwm_tdiv_clk {
+        struct clk      clk;
+        unsigned int    divisor;
+};
+
+static inline struct pwm_tdiv_clk *to_tdiv(struct clk *clk)
+{
+        return container_of(clk, struct pwm_tdiv_clk, clk);
+}
+
+static unsigned long clk_pwm_tdiv_get_rate(struct clk *clk)
+{
+        unsigned long tcfg1 = __raw_readl(S3C2410_TCFG1);
+        unsigned int divisor;
+
+        tcfg1 >>= S3C2410_TCFG1_SHIFT(clk->id);
+        tcfg1 &= S3C2410_TCFG1_MUX_MASK;
+
+        if (pwm_cfg_src_is_tclk(tcfg1))
+                divisor = to_tdiv(clk)->divisor;
+        else
+                divisor = tcfg_to_divisor(tcfg1);
+
+        return clk_get_rate(clk->parent) / divisor;
+}
+
+static unsigned long clk_pwm_tdiv_round_rate(struct clk *clk,
+                                             unsigned long rate)
+{
+        unsigned long parent_rate;
+        unsigned long divisor;
+
+        parent_rate = clk_get_rate(clk->parent);
+        divisor = parent_rate / rate;
+
+        if (divisor <= 1 && pwm_tdiv_has_div1())
+                divisor = 1;
+        else if (divisor <= 2)
+                divisor = 2;
+        else if (divisor <= 4)
+                divisor = 4;
+        else if (divisor <= 8)
+                divisor = 8;
+        else
+                divisor = 16;
+
+        return parent_rate / divisor;
+}
+
+static unsigned long clk_pwm_tdiv_bits(struct pwm_tdiv_clk *divclk)
+{
+        return pwm_tdiv_div_bits(divclk->divisor);
+}
+
+static void clk_pwm_tdiv_update(struct pwm_tdiv_clk *divclk)
+{
+        unsigned long tcfg1 = __raw_readl(S3C2410_TCFG1);
+        unsigned long bits = clk_pwm_tdiv_bits(divclk);
+        unsigned long flags;
+        unsigned long shift =  S3C2410_TCFG1_SHIFT(divclk->clk.id);
+
+        local_irq_save(flags);
+
+        tcfg1 = __raw_readl(S3C2410_TCFG1);
+        tcfg1 &= ~(S3C2410_TCFG1_MUX_MASK << shift);
+        tcfg1 |= bits << shift;
+        __raw_writel(tcfg1, S3C2410_TCFG1);
+
+        local_irq_restore(flags);
+}
+
+static int clk_pwm_tdiv_set_rate(struct clk *clk, unsigned long rate)
+{
+        struct pwm_tdiv_clk *divclk = to_tdiv(clk);
+        unsigned long tcfg1 = __raw_readl(S3C2410_TCFG1);
+        unsigned long parent_rate = clk_get_rate(clk->parent);
+        unsigned long divisor;
+
+        tcfg1 >>= S3C2410_TCFG1_SHIFT(clk->id);
+        tcfg1 &= S3C2410_TCFG1_MUX_MASK;
+
+        rate = clk_round_rate(clk, rate);
+        divisor = parent_rate / rate;
+
+        if (divisor > 16)
+                return -EINVAL;
+
+        divclk->divisor = divisor;
+
+        /* Update the current MUX settings if we are currently
+         * selected as the clock source for this clock. */
+
+        if (!pwm_cfg_src_is_tclk(tcfg1))
+                clk_pwm_tdiv_update(divclk);
+
+        return 0;
+}
+
+static struct pwm_tdiv_clk clk_timer_tdiv[] = {
+        [0]     = {
+                .clk    = {
+                        .name           = "pwm-tdiv",
+                        .parent         = &clk_timer_scaler[0],
+                        .get_rate       = clk_pwm_tdiv_get_rate,
+                        .set_rate       = clk_pwm_tdiv_set_rate,
+                        .round_rate     = clk_pwm_tdiv_round_rate,
+                },
+        },
+        [1]     = {
+                .clk    = {
+                        .name           = "pwm-tdiv",
+                        .parent         = &clk_timer_scaler[0],
+                        .get_rate       = clk_pwm_tdiv_get_rate,
+                        .set_rate       = clk_pwm_tdiv_set_rate,
+                        .round_rate     = clk_pwm_tdiv_round_rate,
+                }
+        },
+        [2]     = {
+                .clk    = {
+                        .name           = "pwm-tdiv",
+                        .parent         = &clk_timer_scaler[1],
+                        .get_rate       = clk_pwm_tdiv_get_rate,
+                        .set_rate       = clk_pwm_tdiv_set_rate,
+                        .round_rate     = clk_pwm_tdiv_round_rate,
+                },
+        },
+        [3]     = {
+                .clk    = {
+                        .name           = "pwm-tdiv",
+                        .parent         = &clk_timer_scaler[1],
+                        .get_rate       = clk_pwm_tdiv_get_rate,
+                        .set_rate       = clk_pwm_tdiv_set_rate,
+                        .round_rate     = clk_pwm_tdiv_round_rate,
+                },
+        },
+        [4]     = {
+                .clk    = {
+                        .name           = "pwm-tdiv",
+                        .parent         = &clk_timer_scaler[1],
+                        .get_rate       = clk_pwm_tdiv_get_rate,
+                        .set_rate       = clk_pwm_tdiv_set_rate,
+                        .round_rate     = clk_pwm_tdiv_round_rate,
+                },
+        },
+};
+
+static int __init clk_pwm_tdiv_register(unsigned int id)
+{
+        struct pwm_tdiv_clk *divclk = &clk_timer_tdiv[id];
+        unsigned long tcfg1 = __raw_readl(S3C2410_TCFG1);
+
+        tcfg1 >>= S3C2410_TCFG1_SHIFT(id);
+        tcfg1 &= S3C2410_TCFG1_MUX_MASK;
+
+        divclk->clk.id = id;
+        divclk->divisor = tcfg_to_divisor(tcfg1);
+
+        return s3c24xx_register_clock(&divclk->clk);
+}
+
+static inline struct clk *s3c24xx_pwmclk_tclk(unsigned int id)
+{
+        return (id >= 2) ? &clk_timer_tclk[1] : &clk_timer_tclk[0];
+}
+
+static inline struct clk *s3c24xx_pwmclk_tdiv(unsigned int id)
+{
+        return &clk_timer_tdiv[id].clk;
+}
+
+static int clk_pwm_tin_set_parent(struct clk *clk, struct clk *parent)
+{
+        unsigned int id = clk->id;
+        unsigned long tcfg1;
+        unsigned long flags;
+        unsigned long bits;
+        unsigned long shift = S3C2410_TCFG1_SHIFT(id);
+
+        if (parent == s3c24xx_pwmclk_tclk(id))
+                bits = S3C_TCFG1_MUX_TCLK << shift;
+        else if (parent == s3c24xx_pwmclk_tdiv(id))
+                bits = clk_pwm_tdiv_bits(to_tdiv(parent)) << shift;
+        else
+                return -EINVAL;
+
+        clk->parent = parent;
+
+        local_irq_save(flags);
+
+        tcfg1 = __raw_readl(S3C2410_TCFG1);
+        tcfg1 &= ~(S3C2410_TCFG1_MUX_MASK << shift);
+        __raw_writel(tcfg1 | bits, S3C2410_TCFG1);
+
+        local_irq_restore(flags);
+
+        return 0;
+}
+
+static struct clk clk_tin[] = {
+        [0]     = {
+                .name           = "pwm-tin",
+                .id             = 0,
+                .set_parent     = clk_pwm_tin_set_parent,
+        },
+        [1]     = {
+                .name           = "pwm-tin",
+                .id             = 1,
+                .set_parent     = clk_pwm_tin_set_parent,
+        },
+        [2]     = {
+                .name           = "pwm-tin",
+                .id             = 2,
+                .set_parent     = clk_pwm_tin_set_parent,
+        },
+        [3]     = {
+                .name           = "pwm-tin",
+                .id             = 3,
+                .set_parent     = clk_pwm_tin_set_parent,
+        },
+        [4]     = {
+                .name           = "pwm-tin",
+                .id             = 4,
+                .set_parent     = clk_pwm_tin_set_parent,
+        },
+};
+
+static __init int clk_pwm_tin_register(struct clk *pwm)
+{
+        unsigned long tcfg1 = __raw_readl(S3C2410_TCFG1);
+        unsigned int id = pwm->id;
+
+        struct clk *parent;
+        int ret;
+
+        ret = s3c24xx_register_clock(pwm);
+        if (ret < 0)
+                return ret;
+
+        tcfg1 >>= S3C2410_TCFG1_SHIFT(id);
+        tcfg1 &= S3C2410_TCFG1_MUX_MASK;
+
+        if (pwm_cfg_src_is_tclk(tcfg1))
+                parent = s3c24xx_pwmclk_tclk(id);
+        else
+                parent = s3c24xx_pwmclk_tdiv(id);
+
+        return clk_set_parent(pwm, parent);
+}
+
+/**
+ * s3c_pwmclk_init() - initialise pwm clocks
+ *
+ * Initialise and register the clocks which provide the inputs for the
+ * pwm timer blocks.
+ *
+ * Note, this call is required by the time core, so must be called after
+ * the base clocks are added and before any of the initcalls are run.
+ */
+__init void s3c_pwmclk_init(void)
+{
+        struct clk *clk_timers;
+        unsigned int clk;
+        int ret;
+
+        clk_timers = clk_get(NULL, "timers");
+        if (IS_ERR(clk_timers)) {
+                printk(KERN_ERR "%s: no parent clock\n", __func__);
+                return;
+        }
+
+        for (clk = 0; clk < ARRAY_SIZE(clk_timer_scaler); clk++) {
+                clk_timer_scaler[clk].parent = clk_timers;
+                ret = s3c24xx_register_clock(&clk_timer_scaler[clk]);
+                if (ret < 0) {
+                        printk(KERN_ERR "error adding pwm scaler%d clock\n", clk);
+                        return;
+                }
+        }
+
+        for (clk = 0; clk < ARRAY_SIZE(clk_timer_tclk); clk++) {
+                ret = s3c24xx_register_clock(&clk_timer_tclk[clk]);
+                if (ret < 0) {
+                        printk(KERN_ERR "error adding pww tclk%d\n", clk);
+                        return;
+                }
+        }
+
+        for (clk = 0; clk < ARRAY_SIZE(clk_timer_tdiv); clk++) {
+                ret = clk_pwm_tdiv_register(clk);
+                if (ret < 0) {
+                        printk(KERN_ERR "error adding pwm%d tdiv clock\n", clk);
+                        return;
+                }
+        }
+
+        for (clk = 0; clk < ARRAY_SIZE(clk_tin); clk++) {
+                ret = clk_pwm_tin_register(&clk_tin[clk]);
+                if (ret < 0) {
+                        printk(KERN_ERR "error adding pwm%d tin clock\n", clk);
+                        return;
+                }
+        }
+}
diff --git a/arch/arm/plat-s3c/time.c b/arch/arm/plat-s3c/time.c
new file mode 100644
index 000000000000..3b27b29da478
--- /dev/null
+++ b/arch/arm/plat-s3c/time.c
@@ -0,0 +1,285 @@
+/* linux/arch/arm/plat-s3c24xx/time.c
+ *
+ * Copyright (C) 2003-2005 Simtec Electronics
+ *      Ben Dooks, <ben@simtec.co.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+
+#include <asm/system.h>
+#include <asm/leds.h>
+#include <asm/mach-types.h>
+
+#include <asm/irq.h>
+#include <mach/map.h>
+#include <plat/regs-timer.h>
+#include <mach/regs-irq.h>
+#include <asm/mach/time.h>
+#include <mach/tick.h>
+
+#include <plat/clock.h>
+#include <plat/cpu.h>
+
+static unsigned long timer_startval;
+static unsigned long timer_usec_ticks;
+
+#ifndef TICK_MAX
+#define TICK_MAX (0xffff)
+#endif
+
+#define TIMER_USEC_SHIFT 16
+
+/* we use the shifted arithmetic to work out the ratio of timer ticks
+ * to usecs, as often the peripheral clock is not a nice even multiple
+ * of 1MHz.
+ *
+ * shift of 14 and 15 are too low for the 12MHz, 16 seems to be ok
+ * for the current HZ value of 200 without producing overflows.
+ *
+ * Original patch by Dimitry Andric, updated by Ben Dooks
+*/
+
+
+/* timer_mask_usec_ticks
+ *
+ * given a clock and divisor, make the value to pass into timer_ticks_to_usec
+ * to scale the ticks into usecs
+*/
+
+static inline unsigned long
+timer_mask_usec_ticks(unsigned long scaler, unsigned long pclk)
+{
+        unsigned long den = pclk / 1000;
+
+        return ((1000 << TIMER_USEC_SHIFT) * scaler + (den >> 1)) / den;
+}
+
+/* timer_ticks_to_usec
+ *
+ * convert timer ticks to usec.
+*/
+
+static inline unsigned long timer_ticks_to_usec(unsigned long ticks)
+{
+        unsigned long res;
+
+        res = ticks * timer_usec_ticks;
+        res += 1 << (TIMER_USEC_SHIFT - 4);     /* round up slightly */
+
+        return res >> TIMER_USEC_SHIFT;
+}
+
+/***
+ * Returns microsecond  since last clock interrupt.  Note that interrupts
+ * will have been disabled by do_gettimeoffset()
+ * IRQs are disabled before entering here from do_gettimeofday()
+ */
+
+static unsigned long s3c2410_gettimeoffset (void)
+{
+        unsigned long tdone;
+        unsigned long tval;
+
+        /* work out how many ticks have gone since last timer interrupt */
+
+        tval =  __raw_readl(S3C2410_TCNTO(4));
+        tdone = timer_startval - tval;
+
+        /* check to see if there is an interrupt pending */
+
+        if (s3c24xx_ostimer_pending()) {
+                /* re-read the timer, and try and fix up for the missed
+                 * interrupt. Note, the interrupt may go off before the
+                 * timer has re-loaded from wrapping.
+                 */
+
+                tval =  __raw_readl(S3C2410_TCNTO(4));
+                tdone = timer_startval - tval;
+
+                if (tval != 0)
+                        tdone += timer_startval;
+        }
+
+        return timer_ticks_to_usec(tdone);
+}
+
+
+/*
+ * IRQ handler for the timer
+ */
+static irqreturn_t
+s3c2410_timer_interrupt(int irq, void *dev_id)
+{
+        timer_tick();
+        return IRQ_HANDLED;
+}
+
+static struct irqaction s3c2410_timer_irq = {
+        .name           = "S3C2410 Timer Tick",
+        .flags          = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
+        .handler        = s3c2410_timer_interrupt,
+};
+
+#define use_tclk1_12() ( \
+        machine_is_bast()       || \
+        machine_is_vr1000()     || \
+        machine_is_anubis()     || \
+        machine_is_osiris())
+
+static struct clk *tin;
+static struct clk *tdiv;
+static struct clk *timerclk;
+
+/*
+ * Set up timer interrupt, and return the current time in seconds.
+ *
+ * Currently we only use timer4, as it is the only timer which has no
+ * other function that can be exploited externally
+ */
+static void s3c2410_timer_setup (void)
+{
+        unsigned long tcon;
+        unsigned long tcnt;
+        unsigned long tcfg1;
+        unsigned long tcfg0;
+
+        tcnt = TICK_MAX;  /* default value for tcnt */
+
+        /* configure the system for whichever machine is in use */
+
+        if (use_tclk1_12()) {
+                /* timer is at 12MHz, scaler is 1 */
+                timer_usec_ticks = timer_mask_usec_ticks(1, 12000000);
+                tcnt = 12000000 / HZ;
+
+                tcfg1 = __raw_readl(S3C2410_TCFG1);
+                tcfg1 &= ~S3C2410_TCFG1_MUX4_MASK;
+                tcfg1 |= S3C2410_TCFG1_MUX4_TCLK1;
+                __raw_writel(tcfg1, S3C2410_TCFG1);
+        } else {
+                unsigned long pclk;
+                struct clk *tscaler;
+
+                /* for the h1940 (and others), we use the pclk from the core
+                 * to generate the timer values. since values around 50 to
+                 * 70MHz are not values we can directly generate the timer
+                 * value from, we need to pre-scale and divide before using it.
+                 *
+                 * for instance, using 50.7MHz and dividing by 6 gives 8.45MHz
+                 * (8.45 ticks per usec)
+                 */
+
+                pclk = clk_get_rate(timerclk);
+
+                /* configure clock tick */
+
+                timer_usec_ticks = timer_mask_usec_ticks(6, pclk);
+
+                tscaler = clk_get_parent(tdiv);
+
+                clk_set_rate(tscaler, pclk / 3);
+                clk_set_rate(tdiv, pclk / 6);
+                clk_set_parent(tin, tdiv);
+
+                tcnt = clk_get_rate(tin) / HZ;
+        }
+
+        tcon = __raw_readl(S3C2410_TCON);
+        tcfg0 = __raw_readl(S3C2410_TCFG0);
+        tcfg1 = __raw_readl(S3C2410_TCFG1);
+
+        /* timers reload after counting zero, so reduce the count by 1 */
+
+        tcnt--;
+
+        printk(KERN_DEBUG "timer tcon=%08lx, tcnt %04lx, tcfg %08lx,%08lx, usec %08lx\n",
+               tcon, tcnt, tcfg0, tcfg1, timer_usec_ticks);
+
+        /* check to see if timer is within 16bit range... */
+        if (tcnt > TICK_MAX) {
+                panic("setup_timer: HZ is too small, cannot configure timer!");
+                return;
+        }
+
+        __raw_writel(tcfg1, S3C2410_TCFG1);
+        __raw_writel(tcfg0, S3C2410_TCFG0);
+
+        timer_startval = tcnt;
+        __raw_writel(tcnt, S3C2410_TCNTB(4));
+
+        /* ensure timer is stopped... */
+
+        tcon &= ~(7<<20);
+        tcon |= S3C2410_TCON_T4RELOAD;
+        tcon |= S3C2410_TCON_T4MANUALUPD;
+
+        __raw_writel(tcon, S3C2410_TCON);
+        __raw_writel(tcnt, S3C2410_TCNTB(4));
+        __raw_writel(tcnt, S3C2410_TCMPB(4));
+
+        /* start the timer running */
+        tcon |= S3C2410_TCON_T4START;
+        tcon &= ~S3C2410_TCON_T4MANUALUPD;
+        __raw_writel(tcon, S3C2410_TCON);
+}
+
+static void __init s3c2410_timer_resources(void)
+{
+        struct platform_device tmpdev;
+
+        tmpdev.dev.bus = &platform_bus_type;
+        tmpdev.id = 4;
+
+        timerclk = clk_get(NULL, "timers");
+        if (IS_ERR(timerclk))
+                panic("failed to get clock for system timer");
+
+        clk_enable(timerclk);
+
+        if (!use_tclk1_12()) {
+                tin = clk_get(&tmpdev.dev, "pwm-tin");
+                if (IS_ERR(tin))
+                        panic("failed to get pwm-tin clock for system timer");
+
+                tdiv = clk_get(&tmpdev.dev, "pwm-tdiv");
+                if (IS_ERR(tdiv))
+                        panic("failed to get pwm-tdiv clock for system timer");
+        }
+
+        clk_enable(tin);
+}
+
+static void __init s3c2410_timer_init(void)
+{
+        s3c2410_timer_resources();
+        s3c2410_timer_setup();
+        setup_irq(IRQ_TIMER4, &s3c2410_timer_irq);
+}
+
+struct sys_timer s3c24xx_timer = {
+        .init           = s3c2410_timer_init,
+        .offset         = s3c2410_gettimeoffset,
+        .resume         = s3c2410_timer_setup
+};