diff --git a/arch/arm/mach-s3c2440/mach-ok2440.c b/arch/arm/mach-s3c2440/mach-ok2440.c
new file mode 100755
index 0000000..8c858f1
--- /dev/null
+++ b/arch/arm/mach-s3c2440/mach-ok2440.c
@@ -0,0 +1,404 @@
+/* linux/arch/arm/mach-s3c2440/mach-ok2440.c
+ *
+ *	Copyright (c) 2011  Feiling Embedded
+ *	Base on mach-smdk2440.c by Ben Dooks <ben@simtec.co.uk>
+ *
+ *	Wu DaoGuang <wdgvip@gmail.com>
+ *
+ * Thanks to Dimity Andric and TomTom for the loan of an SMDK2440.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+*/
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/timer.h>
+#include <linux/init.h>
+#include <linux/serial_core.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/io.h>
+#include <linux/dm9000.h>
+#include <linux/i2c.h>
+#include <linux/i2c/at24.h>
+#include <linux/mmc/host.h>
+#include <linux/clk.h>
+#include <linux/syscore_ops.h>
+
+#include <linux/gpio.h>
+#include <linux/gpio_keys.h>
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/nand_ecc.h>
+#include <linux/mtd/partitions.h>
+
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <mach/hardware.h>
+#include <asm/irq.h>
+#include <asm/sizes.h>
+
+#include <asm/mach-types.h>
+
+#include <plat/regs-serial.h>
+#include <plat/nand.h>
+#include <plat/iic.h>
+#include <plat/udc.h>
+#include <plat/mci.h>
+
+#include <mach/regs-gpio.h>
+#include <mach/leds-gpio.h>
+#include <mach/regs-lcd.h>
+#include <mach/regs-mem.h>
+#include <mach/irqs.h>
+
+
+#include <mach/idle.h>
+#include <mach/fb.h>
+#include <plat/gpio-core.h>
+#include <plat/gpio-cfg-helpers.h>
+#include <plat/gpio-cfg.h>
+#include <plat/usb-control.h>
+
+#include <plat/s3c2410.h>
+#include <plat/s3c244x.h>
+#include <plat/clock.h>
+#include <plat/devs.h>
+#include <plat/cpu.h>
+#include <plat/pm.h>
+
+#include <plat/common-smdk.h>
+#include <sound/s3c24xx_uda134x.h>
+
+#define MACH_OK2440_DM9K_BASE (S3C2410_CS4 + 0x300)
+
+static struct map_desc ok2440_iodesc[] __initdata = {
+	/* ISA IO Space map (memory space selected by A24) */
+
+	{
+		.virtual	= (u32)S3C24XX_VA_ISA_WORD,
+		.pfn		= __phys_to_pfn(S3C2410_CS2),
+		.length		= 0x10000,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= (u32)S3C24XX_VA_ISA_WORD + 0x10000,
+		.pfn		= __phys_to_pfn(S3C2410_CS2 + (1<<24)),
+		.length		= SZ_4M,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= (u32)S3C24XX_VA_ISA_BYTE,
+		.pfn		= __phys_to_pfn(S3C2410_CS2),
+		.length		= 0x10000,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= (u32)S3C24XX_VA_ISA_BYTE + 0x10000,
+		.pfn		= __phys_to_pfn(S3C2410_CS2 + (1<<24)),
+		.length		= SZ_4M,
+		.type		= MT_DEVICE,
+	}
+};
+
+#define UCON	(S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK)
+#define ULCON	(S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB)
+#define UFCON	(S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
+
+static struct s3c2410_uartcfg ok2440_uartcfgs[] __initdata = {
+	[0] = {
+		.hwport	     = 0,
+		.flags	     = 0,
+		.ucon	     = 0x3c5,
+		.ulcon	     = 0x03,
+		.ufcon	     = 0x51,
+	},
+	[1] = {
+		.hwport	     = 1,
+		.flags	     = 0,
+		.ucon	     = 0x3c5,
+		.ulcon	     = 0x03,
+		.ufcon	     = 0x51,
+	},
+	/* IR port */
+	[2] = {
+		.hwport	     = 2,
+		.flags	     = 0,
+		.ucon	     = 0x3c5,
+		.ulcon	     = 0x43,
+		.ufcon	     = 0x51,
+	}
+};
+
+/* LCD driver info */
+
+static struct s3c2410fb_display ok2440_lcd_cfg __initdata = {
+
+	.lcdcon5	= S3C2410_LCDCON5_FRM565 |
+			  S3C2410_LCDCON5_INVVLINE |
+			  S3C2410_LCDCON5_INVVFRAME |
+			  S3C2410_LCDCON5_PWREN |
+			  S3C2410_LCDCON5_HWSWP,
+
+	.type		= S3C2410_LCDCON1_TFT,
+
+	.width		= 320,
+	.height		= 240,
+
+	.pixclock	= 270000, /* HCLK 60 MHz, divisor 10 */
+	.xres		= 320,
+	.yres		= 240,
+	.bpp		= 16,
+	.left_margin	= 8,
+	.right_margin	= 5,
+	.hsync_len	= 16,
+	.upper_margin	= 8,
+	.lower_margin	= 5,
+	.vsync_len	= 2,
+};
+
+static struct s3c2410fb_mach_info ok2440_fb_info __initdata = {
+	.displays	= &ok2440_lcd_cfg,
+	.num_displays	= 1,
+	.default_display = 0,
+
+#if 0
+	/* currently setup by downloader */
+	.gpccon		= 0xaa940659,
+	.gpccon_mask	= 0xffffffff,
+	.gpcup		= 0x0000ffff,
+	.gpcup_mask	= 0xffffffff,
+	.gpdcon		= 0xaa84aaa0,
+	.gpdcon_mask	= 0xffffffff,
+	.gpdup		= 0x0000faff,
+	.gpdup_mask	= 0xffffffff,
+#endif
+
+	.lpcsel		= ((0xCE6) & ~7) | 1<<4,
+};
+
+/* Nand flash partitions on ok2440 */
+static struct mtd_partition ok2440_default_nand_part[] = {
+	[0] = {
+		.name	= "u-boot",
+		.size	= SZ_1M,
+		.offset	= 0,
+	},
+	[1] = {
+		.name	= "App",
+		.size	= SZ_2M,
+		.offset	= SZ_1M,
+	},
+	[2] = {
+		.name	= "Kernel",
+		.size	= SZ_1M*4,
+		.offset	= SZ_1M*3,
+	},
+	[3] = {
+		.name	= "Ramdisk",
+		.size	= SZ_16M,
+		.offset	= SZ_1M*7,
+	},
+	[3] = {
+		.name	= "Rootfs",
+		.size	= MTDPART_SIZ_FULL,
+		.offset	= SZ_1M*23,
+	},
+};
+static struct s3c2410_nand_set ok2440_nand_sets[] = {
+	[0] = {
+		.name		= "nand",
+		.nr_chips	= 1,
+		.nr_partitions	= ARRAY_SIZE(ok2440_default_nand_part),
+		.partitions	= ok2440_default_nand_part,
+		.flash_bbt	= 1, /* We use u-boot to creat a BBT*/
+	}
+};
+
+static struct s3c2410_platform_nand ok2440_nand_info __initdata = {
+	.tacls		= 20,
+	.twrph0		= 60,
+	.twrph1		= 20,
+	.nr_sets	= ARRAY_SIZE(ok2440_nand_sets),
+	.sets		= ok2440_nand_sets,
+	.ignore_unset_ecc = 1,
+};
+
+
+/* DM9000AEP 10/100 ethernet controller */
+static struct resource ok2440_dm9k_resource[] = {
+	[0] = {
+		.start = MACH_OK2440_DM9K_BASE,
+		.end   = MACH_OK2440_DM9K_BASE + 3,
+		.flags = IORESOURCE_MEM
+	},
+	[1] = {
+		.start = MACH_OK2440_DM9K_BASE + 4,
+		.end   = MACH_OK2440_DM9K_BASE + 7,
+		.flags = IORESOURCE_MEM
+	},
+	[2] = {
+		.start = IRQ_EINT7,
+		.end   = IRQ_EINT7,
+		.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
+	}
+};
+/* The DM9000 has no eeprom ,and it's MAC address is set by
+ * the bootloader before starting the kernel.
+ */
+static struct dm9000_plat_data ok2440_dm9k_pdata = {
+	.flags		= (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
+};
+static struct platform_device ok2440_device_eth = {
+	.name		= "dm9000",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(ok2440_dm9k_resource),
+	.resource	= ok2440_dm9k_resource,
+	.dev		= {
+		.platform_data	= &ok2440_dm9k_pdata,
+	},
+};
+
+/* LEDS sourport */
+static struct s3c24xx_led_platdata ok2440_led0_pdata = {
+	.name		= "led0",
+	.gpio		= S3C2410_GPF(5),
+	.flags		= S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
+	.def_trigger	= "heartbeat",
+};
+
+static struct platform_device ok2440_led0 = {
+	.name		= "s3c24xx_led",
+	.id		= 0,
+	.dev		= {
+		.platform_data = &ok2440_led0_pdata,
+	}
+};
+
+/* AUDIO */
+static struct s3c24xx_uda134x_platform_data ok2440_audio_pins = {
+	.l3_clk = S3C2410_GPB(4),
+	.l3_mode = S3C2410_GPB(2),
+	.l3_data = S3C2410_GPB(3),
+	.model   = UDA134X_UDA1341
+};
+
+static struct platform_device ok2440_audio = {
+	.name		= "s3c24xx_uda134x",
+	.id		= 0,
+	.dev		= {
+		.platform_data	= &ok2440_audio_pins,
+	}
+};
+
+static struct platform_device uda1340_codec = {
+	.name = "uda134x-codec",
+	.id   = -1,
+};
+
+/*
+ * I2C devices
+ */
+static struct at24_platform_data at24c08 = {
+	.byte_len	= SZ_8K / 8,
+	.page_size	= 16,
+};
+
+static struct i2c_board_info ok2440_i2c_devs[] __initdata = {
+	{
+		I2C_BOARD_INFO("24c08", 0x50),
+		.platform_data	= &at24c08,
+	},
+};
+
+/*  USB device UDC support */
+static struct s3c2410_udc_mach_info ok2440_udc_cfg __initdata = {
+	.pullup_pin = S3C2410_GPG(9),
+};
+
+/* USB */
+static struct s3c2410_hcd_info ok2440_usb_info __initdata = {
+	.port[0]	= {
+		.flags	= S3C_HCDFLG_USED,
+	},
+	.port[1]	= {
+		.flags	= 0,
+	},
+};
+
+/* MMC/SD */
+static struct s3c24xx_mci_pdata ok2440_mmc_cfg __initdata = {
+	.gpio_detect	= S3C2410_GPG(10),
+	.gpio_wprotect	= S3C2410_GPH(8),
+	.set_power	= NULL,
+	.ocr_avail	= MMC_VDD_32_33 | MMC_VDD_33_34,
+};
+
+
+struct syscore_ops s3c24xx_irq_syscore_ops = {
+	.suspend	= s3c24xx_irq_suspend,
+	.resume		= s3c24xx_irq_resume,
+};
+
+static struct platform_device *ok2440_devices[] __initdata = {
+	&s3c_device_ohci,
+	&s3c_device_lcd,
+	&s3c_device_wdt,
+	&s3c_device_i2c0,
+	&s3c_device_iis,
+	&s3c_device_sdi,
+	&s3c_device_nand,
+	&s3c_device_rtc,
+	&s3c_device_usbgadget,
+	&uda1340_codec,
+	&ok2440_device_eth,
+	&ok2440_audio,
+	&ok2440_led0,
+	&samsung_asoc_dma,
+
+};
+
+static void __init ok2440_map_io(void)
+{
+	s3c24xx_init_io(ok2440_iodesc, ARRAY_SIZE(ok2440_iodesc));
+	s3c24xx_init_clocks(12000000);
+	s3c24xx_init_uarts(ok2440_uartcfgs, ARRAY_SIZE(ok2440_uartcfgs));
+}
+
+static void __init ok2440_machine_init(void)
+{
+	s3c2410_gpio_cfgpin(S3C2410_GPF(5), S3C2410_GPIO_OUTPUT);
+	s3c2410_gpio_setpin(S3C2410_GPF(5), 1);
+	/*configure the mmc protect to pull high . */
+	s3c2410_gpio_cfgpin(S3C2410_GPG(8), S3C2410_GPIO_OUTPUT);
+	s3c2410_gpio_setpin(S3C2410_GPG(8), 1);
+	s3c24xx_fb_set_platdata(&ok2440_fb_info);
+	s3c_i2c0_set_platdata(NULL);
+
+	s3c_ohci_set_platdata(&ok2440_usb_info);
+
+	s3c_nand_set_platdata(&ok2440_nand_info);
+	s3c24xx_udc_set_platdata(&ok2440_udc_cfg);
+	s3c24xx_mci_set_platdata(&ok2440_mmc_cfg);
+	i2c_register_board_info(0, ok2440_i2c_devs,
+				ARRAY_SIZE(ok2440_i2c_devs));
+
+	platform_add_devices(ok2440_devices, ARRAY_SIZE(ok2440_devices));
+	s3c_pm_init();
+}
+
+MACHINE_START(S3C2440, "OK2440 development board.")
+	/* Maintainer: Wu DaoGuang <wdgvip@gmail.com> */
+	.boot_params	= S3C2410_SDRAM_PA + 0x100,
+
+	.init_irq	= s3c24xx_init_irq,
+	.map_io		= ok2440_map_io,
+	.init_machine	= ok2440_machine_init,
+	.timer		= &s3c24xx_timer,
+MACHINE_END
