Merge remote branch 'i.MX/for-next'

12 files changed, 653 insertions, 7 deletions

diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index c5c0369bb481..19ed16d0017e 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -163,6 +163,15 @@ config MACH_MX27_3DS
 	  Include support for MX27PDK platform. This includes specific
 	  configurations for the board and its peripherals.
 
+config MACH_IMX27_VISSTRIM_M10
+	bool "Vista Silicon i.MX27 Visstrim_m10"
+	select IMX_HAVE_PLATFORM_IMX_I2C
+	select IMX_HAVE_PLATFORM_IMX_UART
+	help
+	  Include support for Visstrim_m10 platform and its different variants.
+	  This includes specific configurations for the board and its
+	  peripherals.
+
 config MACH_IMX27LITE
 	bool "LogicPD MX27 LITEKIT platform"
 	select IMX_HAVE_PLATFORM_IMX_UART
diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index 46a9fdfbbd15..5582692bb176 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -27,6 +27,7 @@ obj-$(CONFIG_MACH_PCM038) += mach-pcm038.o
 obj-$(CONFIG_MACH_PCM970_BASEBOARD) += pcm970-baseboard.o
 obj-$(CONFIG_MACH_MX27_3DS) += mach-mx27_3ds.o
 obj-$(CONFIG_MACH_IMX27LITE) += mach-imx27lite.o
+obj-$(CONFIG_MACH_IMX27_VISSTRIM_M10) += mach-imx27_visstrim_m10.o
 obj-$(CONFIG_MACH_CPUIMX27) += mach-cpuimx27.o
 obj-$(CONFIG_MACH_EUKREA_MBIMX27_BASEBOARD) += eukrea_mbimx27-baseboard.o
 obj-$(CONFIG_MACH_PCA100) += mach-pca100.o
diff --git a/arch/arm/mach-imx/mach-imx27_visstrim_m10.c b/arch/arm/mach-imx/mach-imx27_visstrim_m10.c
new file mode 100644
index 000000000000..6dad632b83d6
--- /dev/null
+++ b/arch/arm/mach-imx/mach-imx27_visstrim_m10.c
@@ -0,0 +1,263 @@
+/*
+ * mach-imx27_visstrim_m10.c
+ *
+ * Copyright 2010  Javier Martin <javier.martin@vista-silicon.com>
+ *
+ * Based on mach-pcm038.c, mach-pca100.c, mach-mx27ads.c and others.
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/platform_device.h>
+#include <linux/mtd/physmap.h>
+#include <linux/i2c.h>
+#include <linux/i2c/pca953x.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
+#include <linux/gpio.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+#include <mach/common.h>
+#include <mach/mmc.h>
+#include <mach/iomux.h>
+#include <mach/mxc_ehci.h>
+
+#include "devices-imx27.h"
+#include "devices.h"
+
+#define OTG_PHY_CS_GPIO (GPIO_PORTF + 17)
+#define SDHC1_IRQ IRQ_GPIOB(25)
+
+static int visstrim_m10_pins[] = {
+	/* UART1 (console) */
+	PE12_PF_UART1_TXD,
+	PE13_PF_UART1_RXD,
+	PE14_PF_UART1_CTS,
+	PE15_PF_UART1_RTS,
+	/* FEC */
+	PD0_AIN_FEC_TXD0,
+	PD1_AIN_FEC_TXD1,
+	PD2_AIN_FEC_TXD2,
+	PD3_AIN_FEC_TXD3,
+	PD4_AOUT_FEC_RX_ER,
+	PD5_AOUT_FEC_RXD1,
+	PD6_AOUT_FEC_RXD2,
+	PD7_AOUT_FEC_RXD3,
+	PD8_AF_FEC_MDIO,
+	PD9_AIN_FEC_MDC,
+	PD10_AOUT_FEC_CRS,
+	PD11_AOUT_FEC_TX_CLK,
+	PD12_AOUT_FEC_RXD0,
+	PD13_AOUT_FEC_RX_DV,
+	PD14_AOUT_FEC_RX_CLK,
+	PD15_AOUT_FEC_COL,
+	PD16_AIN_FEC_TX_ER,
+	PF23_AIN_FEC_TX_EN,
+	/* SDHC1 */
+	PE18_PF_SD1_D0,
+	PE19_PF_SD1_D1,
+	PE20_PF_SD1_D2,
+	PE21_PF_SD1_D3,
+	PE22_PF_SD1_CMD,
+	PE23_PF_SD1_CLK,
+	/* Both I2Cs */
+	PD17_PF_I2C_DATA,
+	PD18_PF_I2C_CLK,
+	PC5_PF_I2C2_SDA,
+	PC6_PF_I2C2_SCL,
+	/* USB OTG */
+	OTG_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
+	PC9_PF_USBOTG_DATA0,
+	PC11_PF_USBOTG_DATA1,
+	PC10_PF_USBOTG_DATA2,
+	PC13_PF_USBOTG_DATA3,
+	PC12_PF_USBOTG_DATA4,
+	PC7_PF_USBOTG_DATA5,
+	PC8_PF_USBOTG_DATA6,
+	PE25_PF_USBOTG_DATA7,
+	PE24_PF_USBOTG_CLK,
+	PE2_PF_USBOTG_DIR,
+	PE0_PF_USBOTG_NXT,
+	PE1_PF_USBOTG_STP,
+	PB23_PF_USB_PWR,
+	PB24_PF_USB_OC,
+};
+
+/* GPIOs used as events for applications */
+static struct gpio_keys_button visstrim_gpio_keys[] = {
+	{
+		.type	= EV_KEY,
+		.code	= KEY_RESTART,
+		.gpio	= (GPIO_PORTC + 15),
+		.desc	= "Default config",
+		.active_low = 0,
+		.wakeup = 1,
+	},
+	{
+		.type	= EV_KEY,
+		.code	= KEY_RECORD,
+		.gpio	= (GPIO_PORTF + 14),
+		.desc	= "Record",
+		.active_low = 0,
+		.wakeup = 1,
+	},
+	{
+		.type   = EV_KEY,
+		.code   = KEY_STOP,
+		.gpio   = (GPIO_PORTF + 13),
+		.desc   = "Stop",
+		.active_low = 0,
+		.wakeup = 1,
+	}
+};
+
+static struct gpio_keys_platform_data visstrim_gpio_keys_platform_data = {
+	.buttons	= visstrim_gpio_keys,
+	.nbuttons	= ARRAY_SIZE(visstrim_gpio_keys),
+};
+
+static struct platform_device visstrim_gpio_keys_device = {
+	.name	= "gpio-keys",
+	.id	= -1,
+	.dev	= {
+		.platform_data	= &visstrim_gpio_keys_platform_data,
+	},
+};
+
+/* Visstrim_SM10 has a microSD slot connected to sdhc1 */
+static int visstrim_m10_sdhc1_init(struct device *dev,
+		irq_handler_t detect_irq, void *data)
+{
+	int ret;
+
+	ret = request_irq(SDHC1_IRQ, detect_irq, IRQF_TRIGGER_FALLING,
+				"mmc-detect", data);
+	return ret;
+}
+
+static void visstrim_m10_sdhc1_exit(struct device *dev, void *data)
+{
+	free_irq(SDHC1_IRQ, data);
+}
+
+static struct imxmmc_platform_data visstrim_m10_sdhc_pdata = {
+	.init = visstrim_m10_sdhc1_init,
+	.exit = visstrim_m10_sdhc1_exit,
+};
+
+/* Visstrim_SM10 NOR flash */
+static struct physmap_flash_data visstrim_m10_flash_data = {
+	.width = 2,
+};
+
+static struct resource visstrim_m10_flash_resource = {
+	.start = 0xc0000000,
+	.end = 0xc0000000 + SZ_64M - 1,
+	.flags = IORESOURCE_MEM,
+};
+
+static struct platform_device visstrim_m10_nor_mtd_device = {
+	.name = "physmap-flash",
+	.id = 0,
+	.dev = {
+		.platform_data = &visstrim_m10_flash_data,
+	},
+	.num_resources = 1,
+	.resource = &visstrim_m10_flash_resource,
+};
+
+static struct platform_device *platform_devices[] __initdata = {
+	&visstrim_gpio_keys_device,
+	&visstrim_m10_nor_mtd_device,
+	&mxc_fec_device,
+};
+
+/* Visstrim_M10 uses UART0 as console */
+static const struct imxuart_platform_data uart_pdata __initconst = {
+	.flags = IMXUART_HAVE_RTSCTS,
+};
+
+/* I2C */
+static const struct imxi2c_platform_data visstrim_m10_i2c_data __initconst = {
+	.bitrate = 100000,
+};
+
+static struct pca953x_platform_data visstrim_m10_pca9555_pdata = {
+	.gpio_base = 240, /* After MX27 internal GPIOs */
+	.invert = 0,
+};
+
+static struct i2c_board_info visstrim_m10_i2c_devices[] = {
+	{
+		I2C_BOARD_INFO("pca9555", 0x20),
+		.platform_data = &visstrim_m10_pca9555_pdata,
+	},
+};
+
+/* USB OTG */
+static int otg_phy_init(struct platform_device *pdev)
+{
+	gpio_set_value(OTG_PHY_CS_GPIO, 0);
+	return 0;
+}
+
+static struct mxc_usbh_platform_data visstrim_m10_usbotg_pdata = {
+	.init = otg_phy_init,
+	.portsc	= MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
+	.flags	= MXC_EHCI_POWER_PINS_ENABLED,
+};
+
+static void __init visstrim_m10_board_init(void)
+{
+	int ret;
+
+	ret = mxc_gpio_setup_multiple_pins(visstrim_m10_pins,
+			ARRAY_SIZE(visstrim_m10_pins), "VISSTRIM_M10");
+	if (ret)
+		pr_err("Failed to setup pins (%d)\n", ret);
+
+	imx27_add_imx_uart0(&uart_pdata);
+
+	i2c_register_board_info(0, visstrim_m10_i2c_devices,
+				ARRAY_SIZE(visstrim_m10_i2c_devices));
+	imx27_add_i2c_imx0(&visstrim_m10_i2c_data);
+	imx27_add_i2c_imx1(&visstrim_m10_i2c_data);
+	mxc_register_device(&mxc_sdhc_device0, &visstrim_m10_sdhc_pdata);
+	mxc_register_device(&mxc_otg_host, &visstrim_m10_usbotg_pdata);
+	platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
+}
+
+static void __init visstrim_m10_timer_init(void)
+{
+	mx27_clocks_init((unsigned long)25000000);
+}
+
+static struct sys_timer visstrim_m10_timer = {
+	.init	= visstrim_m10_timer_init,
+};
+
+MACHINE_START(IMX27_VISSTRIM_M10, "Vista Silicon Visstrim_M10")
+	.phys_io        = MX27_AIPI_BASE_ADDR,
+	.io_pg_offst    = ((MX27_AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
+	.boot_params    = MX27_PHYS_OFFSET + 0x100,
+	.map_io         = mx27_map_io,
+	.init_irq       = mx27_init_irq,
+	.init_machine   = visstrim_m10_board_init,
+	.timer          = &visstrim_m10_timer,
+MACHINE_END
diff --git a/arch/arm/mach-mx3/Kconfig b/arch/arm/mach-mx3/Kconfig
index 85beece802aa..5cee1a5c4bd2 100644
--- a/arch/arm/mach-mx3/Kconfig
+++ b/arch/arm/mach-mx3/Kconfig
@@ -9,6 +9,7 @@ config ARCH_MX35
 	bool
 	select ARCH_MXC_IOMUX_V3
 	select ARCH_MXC_AUDMUX_V2
+	select HAVE_EPIT
 
 comment "MX3 platforms:"
 
@@ -140,6 +141,7 @@ config MACH_MX35_3DS
 	bool "Support MX35PDK platform"
 	select ARCH_MX35
 	select IMX_HAVE_PLATFORM_IMX_UART
+	select IMX_HAVE_PLATFORM_MXC_NAND
 	default n
 	help
 	  Include support for MX35PDK platform. This includes specific
diff --git a/arch/arm/mach-mx3/clock-imx35.c b/arch/arm/mach-mx3/clock-imx35.c
index d3af0fdf8475..ff0de316f9e0 100644
--- a/arch/arm/mach-mx3/clock-imx35.c
+++ b/arch/arm/mach-mx3/clock-imx35.c
@@ -343,8 +343,8 @@ DEFINE_CLOCK(cspi2_clk,  1, CCM_CGR0, 12, get_rate_ipg, NULL);
 DEFINE_CLOCK(ect_clk,    0, CCM_CGR0, 14, get_rate_ipg, NULL);
 DEFINE_CLOCK(edio_clk,   0, CCM_CGR0, 16, NULL, NULL);
 DEFINE_CLOCK(emi_clk,    0, CCM_CGR0, 18, get_rate_ipg, NULL);
-DEFINE_CLOCK(epit1_clk,  0, CCM_CGR0, 20, get_rate_ipg_per, NULL);
-DEFINE_CLOCK(epit2_clk,  1, CCM_CGR0, 22, get_rate_ipg_per, NULL);
+DEFINE_CLOCK(epit1_clk,  0, CCM_CGR0, 20, get_rate_ipg, NULL);
+DEFINE_CLOCK(epit2_clk,  1, CCM_CGR0, 22, get_rate_ipg, NULL);
 DEFINE_CLOCK(esai_clk,   0, CCM_CGR0, 24, NULL, NULL);
 DEFINE_CLOCK(esdhc1_clk, 0, CCM_CGR0, 26, get_rate_sdhc, NULL);
 DEFINE_CLOCK(esdhc2_clk, 1, CCM_CGR0, 28, get_rate_sdhc, NULL);
@@ -435,8 +435,8 @@ static struct clk_lookup lookups[] = {
 	_REGISTER_CLOCK(NULL, "ect", ect_clk)
 	_REGISTER_CLOCK(NULL, "edio", edio_clk)
 	_REGISTER_CLOCK(NULL, "emi", emi_clk)
-	_REGISTER_CLOCK(NULL, "epit", epit1_clk)
-	_REGISTER_CLOCK(NULL, "epit", epit2_clk)
+	_REGISTER_CLOCK("imx-epit.0", NULL, epit1_clk)
+	_REGISTER_CLOCK("imx-epit.1", NULL, epit2_clk)
 	_REGISTER_CLOCK(NULL, "esai", esai_clk)
 	_REGISTER_CLOCK(NULL, "sdhc", esdhc1_clk)
 	_REGISTER_CLOCK(NULL, "sdhc", esdhc2_clk)
@@ -502,8 +502,13 @@ int __init mx35_clocks_init()
 	__raw_writel((3 << 26) | ll, CCM_BASE + CCM_CGR2);
 	__raw_writel(0, CCM_BASE + CCM_CGR3);
 
+#ifdef CONFIG_MXC_USE_EPIT
+	epit_timer_init(&epit1_clk,
+			MX35_IO_ADDRESS(MX35_EPIT1_BASE_ADDR), MX35_INT_EPIT1);
+#else
 	mxc_timer_init(&gpt_clk,
 			MX35_IO_ADDRESS(MX35_GPT1_BASE_ADDR), MX35_INT_GPT);
+#endif
 
 	return 0;
 }
diff --git a/arch/arm/mach-mx3/mach-mx35_3ds.c b/arch/arm/mach-mx3/mach-mx35_3ds.c
index 1c30d7212f17..1dd7baae4507 100644
--- a/arch/arm/mach-mx3/mach-mx35_3ds.c
+++ b/arch/arm/mach-mx3/mach-mx35_3ds.c
@@ -1,5 +1,6 @@
 /*
  * Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright (C) 2009 Marc Kleine-Budde, Pengutronix
  *
  * Author: Fabio Estevam <fabio.estevam@freescale.com>
  *
@@ -27,6 +28,8 @@
 #include <linux/gpio.h>
 #include <linux/fsl_devices.h>
 
+#include <linux/mtd/physmap.h>
+
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/time.h>
@@ -35,6 +38,7 @@
 #include <mach/hardware.h>
 #include <mach/common.h>
 #include <mach/iomux-mx35.h>
+#include <mach/mxc_ehci.h>
 
 #include "devices-imx35.h"
 #include "devices.h"
@@ -43,8 +47,35 @@ static const struct imxuart_platform_data uart_pdata __initconst = {
 	.flags = IMXUART_HAVE_RTSCTS,
 };
 
+static struct physmap_flash_data mx35pdk_flash_data = {
+	.width  = 2,
+};
+
+static struct resource mx35pdk_flash_resource = {
+	.start	= MX35_CS0_BASE_ADDR,
+	.end	= MX35_CS0_BASE_ADDR + SZ_64M - 1,
+	.flags	= IORESOURCE_MEM,
+};
+
+static struct platform_device mx35pdk_flash = {
+	.name	= "physmap-flash",
+	.id	= 0,
+	.dev	= {
+		.platform_data  = &mx35pdk_flash_data,
+	},
+	.resource = &mx35pdk_flash_resource,
+	.num_resources = 1,
+};
+
+static const struct mxc_nand_platform_data mx35pdk_nand_board_info __initconst = {
+	.width = 1,
+	.hw_ecc = 1,
+	.flash_bbt = 1,
+};
+
 static struct platform_device *devices[] __initdata = {
 	&mxc_fec_device,
+	&mx35pdk_flash,
 };
 
 static struct pad_desc mx35pdk_pads[] = {
@@ -75,14 +106,24 @@ static struct pad_desc mx35pdk_pads[] = {
 	/* USBOTG */
 	MX35_PAD_USBOTG_PWR__USB_TOP_USBOTG_PWR,
 	MX35_PAD_USBOTG_OC__USB_TOP_USBOTG_OC,
+	/* USBH1 */
+	MX35_PAD_I2C2_CLK__USB_TOP_USBH2_PWR,
+	MX35_PAD_I2C2_DAT__USB_TOP_USBH2_OC,
 };
 
 /* OTG config */
-static struct fsl_usb2_platform_data usb_pdata = {
+static struct fsl_usb2_platform_data usb_otg_pdata = {
 	.operating_mode	= FSL_USB2_DR_DEVICE,
 	.phy_mode	= FSL_USB2_PHY_UTMI_WIDE,
 };
 
+/* USB HOST config */
+static struct mxc_usbh_platform_data usb_host_pdata = {
+	.portsc		= MXC_EHCI_MODE_SERIAL,
+	.flags		= MXC_EHCI_INTERFACE_SINGLE_UNI |
+			  MXC_EHCI_INTERNAL_PHY,
+};
+
 /*
  * Board specific initialization.
  */
@@ -94,7 +135,11 @@ static void __init mxc_board_init(void)
 
 	imx35_add_imx_uart0(&uart_pdata);
 
-	mxc_register_device(&mxc_otg_udc_device, &usb_pdata);
+	mxc_register_device(&mxc_otg_udc_device, &usb_otg_pdata);
+
+	mxc_register_device(&mxc_usbh1, &usb_host_pdata);
+
+	imx35_add_mxc_nand(&mx35pdk_nand_board_info);
 }
 
 static void __init mx35pdk_timer_init(void)
diff --git a/arch/arm/mach-mx5/board-mx51_babbage.c b/arch/arm/mach-mx5/board-mx51_babbage.c
index 6e384d92e625..10d2f6bde172 100644
--- a/arch/arm/mach-mx5/board-mx51_babbage.c
+++ b/arch/arm/mach-mx5/board-mx51_babbage.c
@@ -17,6 +17,7 @@
 #include <linux/delay.h>
 #include <linux/io.h>
 #include <linux/fsl_devices.h>
+#include <linux/fec.h>
 
 #include <mach/common.h>
 #include <mach/hardware.h>
@@ -35,7 +36,8 @@
 
 #define BABBAGE_USB_HUB_RESET	(0*32 + 7)	/* GPIO_1_7 */
 #define BABBAGE_USBH1_STP	(0*32 + 27)	/* GPIO_1_27 */
-#define BABBAGE_PHY_RESET (1*32 +5)	/* GPIO_2_5 */
+#define BABBAGE_PHY_RESET	(1*32 + 5)	/* GPIO_2_5 */
+#define BABBAGE_FEC_PHY_RESET	(1*32 + 14)	/* GPIO_2_14 */
 
 /* USB_CTRL_1 */
 #define MX51_USB_CTRL_1_OFFSET			0x10
@@ -93,6 +95,28 @@ static struct pad_desc mx51babbage_pads[] = {
 
 	/* USB HUB reset line*/
 	MX51_PAD_GPIO_1_7__GPIO_1_7,
+
+	/* FEC */
+	MX51_PAD_EIM_EB2__FEC_MDIO,
+	MX51_PAD_EIM_EB3__FEC_RDAT1,
+	MX51_PAD_EIM_CS2__FEC_RDAT2,
+	MX51_PAD_EIM_CS3__FEC_RDAT3,
+	MX51_PAD_EIM_CS4__FEC_RX_ER,
+	MX51_PAD_EIM_CS5__FEC_CRS,
+	MX51_PAD_NANDF_RB2__FEC_COL,
+	MX51_PAD_NANDF_RB3__FEC_RXCLK,
+	MX51_PAD_NANDF_RB6__FEC_RDAT0,
+	MX51_PAD_NANDF_RB7__FEC_TDAT0,
+	MX51_PAD_NANDF_CS2__FEC_TX_ER,
+	MX51_PAD_NANDF_CS3__FEC_MDC,
+	MX51_PAD_NANDF_CS4__FEC_TDAT1,
+	MX51_PAD_NANDF_CS5__FEC_TDAT2,
+	MX51_PAD_NANDF_CS6__FEC_TDAT3,
+	MX51_PAD_NANDF_CS7__FEC_TX_EN,
+	MX51_PAD_NANDF_RDY_INT__FEC_TX_CLK,
+
+	/* FEC PHY reset line */
+	MX51_PAD_EIM_A20__GPIO_2_14,
 };
 
 /* Serial ports */
@@ -171,6 +195,22 @@ static inline void babbage_usbhub_reset(void)
 	gpio_set_value(BABBAGE_USB_HUB_RESET, 1);
 }
 
+static inline void babbage_fec_reset(void)
+{
+	int ret;
+
+	/* reset FEC PHY */
+	ret = gpio_request(BABBAGE_FEC_PHY_RESET, "fec-phy-reset");
+	if (ret) {
+		printk(KERN_ERR"failed to get GPIO_FEC_PHY_RESET: %d\n", ret);
+		return;
+	}
+	gpio_direction_output(BABBAGE_FEC_PHY_RESET, 0);
+	gpio_set_value(BABBAGE_FEC_PHY_RESET, 0);
+	msleep(1);
+	gpio_set_value(BABBAGE_FEC_PHY_RESET, 1);
+}
+
 /* This function is board specific as the bit mask for the plldiv will also
 be different for other Freescale SoCs, thus a common bitmask is not
 possible and cannot get place in /plat-mxc/ehci.c.*/
@@ -250,6 +290,7 @@ static void __init mxc_board_init(void)
 	mxc_iomux_v3_setup_multiple_pads(mx51babbage_pads,
 					ARRAY_SIZE(mx51babbage_pads));
 	mxc_init_imx_uart();
+	babbage_fec_reset();
 	platform_add_devices(devices, ARRAY_SIZE(devices));
 
 	mxc_register_device(&mxc_i2c_device0, &babbage_i2c_data);
diff --git a/arch/arm/plat-mxc/Kconfig b/arch/arm/plat-mxc/Kconfig
index 0527e65318f4..448098bce216 100644
--- a/arch/arm/plat-mxc/Kconfig
+++ b/arch/arm/plat-mxc/Kconfig
@@ -91,6 +91,18 @@ config MXC_DEBUG_BOARD
 	  data/address de-multiplexing and decode, signal level shift,
 	  interrupt control and various board functions.
 
+config HAVE_EPIT
+	bool
+
+config MXC_USE_EPIT
+	bool "Use EPIT instead of GPT"
+	depends on HAVE_EPIT
+	help
+	  Use EPIT as the system timer on systems that have it. Normally you
+	  don't have a reason to do so as the EPIT has the same features and
+	  uses the same clocks as the GPT. Anyway, on some systems the GPT
+	  may be in use for other purposes.
+
 config MXC_ULPI
 	bool
 
diff --git a/arch/arm/plat-mxc/Makefile b/arch/arm/plat-mxc/Makefile
index 78d405ed8616..bb3443f9751a 100644
--- a/arch/arm/plat-mxc/Makefile
+++ b/arch/arm/plat-mxc/Makefile
@@ -13,6 +13,7 @@ obj-$(CONFIG_ARCH_MXC_IOMUX_V3) += iomux-v3.o
 obj-$(CONFIG_MXC_PWM)  += pwm.o
 obj-$(CONFIG_USB_EHCI_MXC) += ehci.o
 obj-$(CONFIG_MXC_ULPI) += ulpi.o
+obj-$(CONFIG_MXC_USE_EPIT) += epit.o
 obj-$(CONFIG_ARCH_MXC_AUDMUX_V1) += audmux-v1.o
 obj-$(CONFIG_ARCH_MXC_AUDMUX_V2) += audmux-v2.o
 obj-$(CONFIG_MXC_DEBUG_BOARD) += 3ds_debugboard.o
diff --git a/arch/arm/plat-mxc/epit.c b/arch/arm/plat-mxc/epit.c
new file mode 100644
index 000000000000..ee9582f4972e
--- /dev/null
+++ b/arch/arm/plat-mxc/epit.c
@@ -0,0 +1,242 @@
+/*
+ *  linux/arch/arm/plat-mxc/epit.c
+ *
+ *  Copyright (C) 2010 Sascha Hauer <s.hauer@pengutronix.de>
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ */
+
+#define EPITCR		0x00
+#define EPITSR		0x04
+#define EPITLR		0x08
+#define EPITCMPR	0x0c
+#define EPITCNR		0x10
+
+#define EPITCR_EN			(1 << 0)
+#define EPITCR_ENMOD			(1 << 1)
+#define EPITCR_OCIEN			(1 << 2)
+#define EPITCR_RLD			(1 << 3)
+#define EPITCR_PRESC(x)			(((x) & 0xfff) << 4)
+#define EPITCR_SWR			(1 << 16)
+#define EPITCR_IOVW			(1 << 17)
+#define EPITCR_DBGEN			(1 << 18)
+#define EPITCR_WAITEN			(1 << 19)
+#define EPITCR_RES			(1 << 20)
+#define EPITCR_STOPEN			(1 << 21)
+#define EPITCR_OM_DISCON		(0 << 22)
+#define EPITCR_OM_TOGGLE		(1 << 22)
+#define EPITCR_OM_CLEAR			(2 << 22)
+#define EPITCR_OM_SET			(3 << 22)
+#define EPITCR_CLKSRC_OFF		(0 << 24)
+#define EPITCR_CLKSRC_PERIPHERAL	(1 << 24)
+#define EPITCR_CLKSRC_REF_HIGH		(1 << 24)
+#define EPITCR_CLKSRC_REF_LOW		(3 << 24)
+
+#define EPITSR_OCIF			(1 << 0)
+
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/clockchips.h>
+#include <linux/clk.h>
+
+#include <mach/hardware.h>
+#include <asm/mach/time.h>
+#include <mach/common.h>
+
+static struct clock_event_device clockevent_epit;
+static enum clock_event_mode clockevent_mode = CLOCK_EVT_MODE_UNUSED;
+
+static void __iomem *timer_base;
+
+static inline void epit_irq_disable(void)
+{
+	u32 val;
+
+	val = __raw_readl(timer_base + EPITCR);
+	val &= ~EPITCR_OCIEN;
+	__raw_writel(val, timer_base + EPITCR);
+}
+
+static inline void epit_irq_enable(void)
+{
+	u32 val;
+
+	val = __raw_readl(timer_base + EPITCR);
+	val |= EPITCR_OCIEN;
+	__raw_writel(val, timer_base + EPITCR);
+}
+
+static void epit_irq_acknowledge(void)
+{
+	__raw_writel(EPITSR_OCIF, timer_base + EPITSR);
+}
+
+static cycle_t epit_read(struct clocksource *cs)
+{
+	return 0 - __raw_readl(timer_base + EPITCNR);
+}
+
+static struct clocksource clocksource_epit = {
+	.name		= "epit",
+	.rating		= 200,
+	.read		= epit_read,
+	.mask		= CLOCKSOURCE_MASK(32),
+	.shift		= 20,
+	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
+};
+
+static int __init epit_clocksource_init(struct clk *timer_clk)
+{
+	unsigned int c = clk_get_rate(timer_clk);
+
+	clocksource_epit.mult = clocksource_hz2mult(c,
+					clocksource_epit.shift);
+	clocksource_register(&clocksource_epit);
+
+	return 0;
+}
+
+/* clock event */
+
+static int epit_set_next_event(unsigned long evt,
+			      struct clock_event_device *unused)
+{
+	unsigned long tcmp;
+
+	tcmp = __raw_readl(timer_base + EPITCNR);
+
+	__raw_writel(tcmp - evt, timer_base + EPITCMPR);
+
+	return 0;
+}
+
+static void epit_set_mode(enum clock_event_mode mode,
+				struct clock_event_device *evt)
+{
+	unsigned long flags;
+
+	/*
+	 * The timer interrupt generation is disabled at least
+	 * for enough time to call epit_set_next_event()
+	 */
+	local_irq_save(flags);
+
+	/* Disable interrupt in GPT module */
+	epit_irq_disable();
+
+	if (mode != clockevent_mode) {
+		/* Set event time into far-far future */
+
+		/* Clear pending interrupt */
+		epit_irq_acknowledge();
+	}
+
+	/* Remember timer mode */
+	clockevent_mode = mode;
+	local_irq_restore(flags);
+
+	switch (mode) {
+	case CLOCK_EVT_MODE_PERIODIC:
+		printk(KERN_ERR "epit_set_mode: Periodic mode is not "
+				"supported for i.MX EPIT\n");
+		break;
+	case CLOCK_EVT_MODE_ONESHOT:
+	/*
+	 * Do not put overhead of interrupt enable/disable into
+	 * epit_set_next_event(), the core has about 4 minutes
+	 * to call epit_set_next_event() or shutdown clock after
+	 * mode switching
+	 */
+		local_irq_save(flags);
+		epit_irq_enable();
+		local_irq_restore(flags);
+		break;
+	case CLOCK_EVT_MODE_SHUTDOWN:
+	case CLOCK_EVT_MODE_UNUSED:
+	case CLOCK_EVT_MODE_RESUME:
+		/* Left event sources disabled, no more interrupts appear */
+		break;
+	}
+}
+
+/*
+ * IRQ handler for the timer
+ */
+static irqreturn_t epit_timer_interrupt(int irq, void *dev_id)
+{
+	struct clock_event_device *evt = &clockevent_epit;
+
+	epit_irq_acknowledge();
+
+	evt->event_handler(evt);
+
+	return IRQ_HANDLED;
+}
+
+static struct irqaction epit_timer_irq = {
+	.name		= "i.MX EPIT Timer Tick",
+	.flags		= IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
+	.handler	= epit_timer_interrupt,
+};
+
+static struct clock_event_device clockevent_epit = {
+	.name		= "epit",
+	.features	= CLOCK_EVT_FEAT_ONESHOT,
+	.shift		= 32,
+	.set_mode	= epit_set_mode,
+	.set_next_event	= epit_set_next_event,
+	.rating		= 200,
+};
+
+static int __init epit_clockevent_init(struct clk *timer_clk)
+{
+	unsigned int c = clk_get_rate(timer_clk);
+
+	clockevent_epit.mult = div_sc(c, NSEC_PER_SEC,
+					clockevent_epit.shift);
+	clockevent_epit.max_delta_ns =
+			clockevent_delta2ns(0xfffffffe, &clockevent_epit);
+	clockevent_epit.min_delta_ns =
+			clockevent_delta2ns(0x800, &clockevent_epit);
+
+	clockevent_epit.cpumask = cpumask_of(0);
+
+	clockevents_register_device(&clockevent_epit);
+
+	return 0;
+}
+
+void __init epit_timer_init(struct clk *timer_clk, void __iomem *base, int irq)
+{
+	clk_enable(timer_clk);
+
+	timer_base = base;
+
+	/*
+	 * Initialise to a known state (all timers off, and timing reset)
+	 */
+	__raw_writel(0x0, timer_base + EPITCR);
+
+	__raw_writel(0xffffffff, timer_base + EPITLR);
+	__raw_writel(EPITCR_EN | EPITCR_CLKSRC_REF_HIGH | EPITCR_WAITEN,
+			timer_base + EPITCR);
+
+	/* init and register the timer to the framework */
+	epit_clocksource_init(timer_clk);
+	epit_clockevent_init(timer_clk);
+
+	/* Make irqs happen */
+	setup_irq(irq, &epit_timer_irq);
+}
diff --git a/arch/arm/plat-mxc/include/mach/common.h b/arch/arm/plat-mxc/include/mach/common.h
index 2941472582d2..7a1e1f89ff09 100644
--- a/arch/arm/plat-mxc/include/mach/common.h
+++ b/arch/arm/plat-mxc/include/mach/common.h
@@ -32,6 +32,7 @@ extern void mx31_init_irq(void);
 extern void mx35_init_irq(void);
 extern void mx51_init_irq(void);
 extern void mxc91231_init_irq(void);
+extern void epit_timer_init(struct clk *timer_clk, void __iomem *base, int irq);
 extern void mxc_timer_init(struct clk *timer_clk, void __iomem *, int);
 extern int mx1_clocks_init(unsigned long fref);
 extern int mx21_clocks_init(unsigned long lref, unsigned long fref);
diff --git a/arch/arm/plat-mxc/include/mach/iomux-mx51.h b/arch/arm/plat-mxc/include/mach/iomux-mx51.h
index 21bfa46785bb..0d77be3a2374 100644
--- a/arch/arm/plat-mxc/include/mach/iomux-mx51.h
+++ b/arch/arm/plat-mxc/include/mach/iomux-mx51.h
@@ -46,6 +46,13 @@ typedef enum iomux_config {
 #define MX51_GPIO_PAD_CTRL		(PAD_CTL_DSE_HIGH | PAD_CTL_PKE | \
 				PAD_CTL_SRE_FAST)
 
+#define MX51_PAD_CTRL_1	(PAD_CTL_SRE_FAST | PAD_CTL_DSE_HIGH | \
+					PAD_CTL_PUE | PAD_CTL_PKE | PAD_CTL_HYS)
+#define MX51_PAD_CTRL_2	(PAD_CTL_HYS | PAD_CTL_PKE)
+#define MX51_PAD_CTRL_3	(PAD_CTL_PKE | PAD_CTL_PUS_100K_UP)
+#define MX51_PAD_CTRL_4	(PAD_CTL_DVS | PAD_CTL_HYS | PAD_CTL_PKE)
+#define MX51_PAD_CTRL_5	(PAD_CTL_DVS | PAD_CTL_DSE_HIGH)
+
 /*
  * The naming convention for the pad modes is MX51_PAD_<padname>__<padmode>
  * If <padname> or <padmode> refers to a GPIO, it is named GPIO_<unit>_<num>
@@ -106,14 +113,20 @@ typedef enum iomux_config {
 #define MX51_PAD_EIM_EB0__EIM_EB0               IOMUX_PAD(0x460, 0x0cc, 0, 0x0,   0, NO_PAD_CTRL)
 #define MX51_PAD_EIM_EB1__EIM_EB1               IOMUX_PAD(0x464, 0x0d0, 0, 0x0,   0, NO_PAD_CTRL)
 #define MX51_PAD_EIM_EB2__GPIO_2_22             IOMUX_PAD(0x468, 0x0d4, 1, 0x0,   0, NO_PAD_CTRL)
+#define MX51_PAD_EIM_EB2__FEC_MDIO		IOMUX_PAD(0x468, 0x0d4, 3, 0x0,   0, MX51_PAD_CTRL_1 | PAD_CTL_PUS_22K_UP)
 #define MX51_PAD_EIM_EB3__GPIO_2_23             IOMUX_PAD(0x46c, 0x0d8, 1, 0x0,   0, NO_PAD_CTRL)
+#define MX51_PAD_EIM_EB3__FEC_RDAT1		IOMUX_PAD(0x46c, 0x0d8, 3, 0x0,   0, MX51_PAD_CTRL_2)
 #define MX51_PAD_EIM_OE__GPIO_2_24              IOMUX_PAD(0x470, 0x0dc, 1, 0x0,   0, NO_PAD_CTRL)
 #define MX51_PAD_EIM_CS0__GPIO_2_25             IOMUX_PAD(0x474, 0x0e0, 1, 0x0,   0, NO_PAD_CTRL)
 #define MX51_PAD_EIM_CS1__GPIO_2_26             IOMUX_PAD(0x478, 0x0e4, 1, 0x0,   0, NO_PAD_CTRL)
 #define MX51_PAD_EIM_CS2__GPIO_2_27             IOMUX_PAD(0x47c, 0x0e8, 1, 0x0,   0, NO_PAD_CTRL)
+#define MX51_PAD_EIM_CS2__FEC_RDAT2		IOMUX_PAD(0x47c, 0x0e8, 3, 0x0,   0, MX51_PAD_CTRL_2)
 #define MX51_PAD_EIM_CS3__GPIO_2_28             IOMUX_PAD(0x480, 0x0ec, 1, 0x0,   0, NO_PAD_CTRL)
+#define MX51_PAD_EIM_CS3__FEC_RDAT3		IOMUX_PAD(0x480, 0x0ec, 3, 0x0,   0, MX51_PAD_CTRL_2)
 #define MX51_PAD_EIM_CS4__GPIO_2_29             IOMUX_PAD(0x484, 0x0f0, 1, 0x0,   0, NO_PAD_CTRL)
+#define MX51_PAD_EIM_CS4__FEC_RX_ER		IOMUX_PAD(0x484, 0x0f0, 3, 0x0,   0, MX51_PAD_CTRL_2)
 #define MX51_PAD_EIM_CS5__GPIO_2_30             IOMUX_PAD(0x488, 0x0f4, 1, 0x0,   0, NO_PAD_CTRL)
+#define MX51_PAD_EIM_CS5__FEC_CRS		IOMUX_PAD(0x488, 0x0f4, 3, 0x0,   0, MX51_PAD_CTRL_2)
 #define MX51_PAD_EIM_DTACK__GPIO_2_31           IOMUX_PAD(0x48c, 0x0f8, 1, 0x0,   0, NO_PAD_CTRL)
 #define MX51_PAD_EIM_LBA__GPIO_3_1              IOMUX_PAD(0x494, 0x0FC, 1, 0x0,   0, NO_PAD_CTRL)
 #define MX51_PAD_EIM_CRE__GPIO_3_2              IOMUX_PAD(0x4A0, 0x100, 1, 0x0,   0, NO_PAD_CTRL)
@@ -126,17 +139,28 @@ typedef enum iomux_config {
 #define MX51_PAD_NANDF_RB0__GPIO_3_8            IOMUX_PAD(0x4F8, 0x11C, 3, 0x0,   0, NO_PAD_CTRL)
 #define MX51_PAD_NANDF_RB1__GPIO_3_9            IOMUX_PAD(0x4FC, 0x120, 3, 0x0,   0, NO_PAD_CTRL)
 #define MX51_PAD_NANDF_RB2__GPIO_3_10           IOMUX_PAD(0x500, 0x124, 3, 0x0,   0, NO_PAD_CTRL)
+#define MX51_PAD_NANDF_RB2__FEC_COL		IOMUX_PAD(0x500, 0x124, 1, 0x0,   0, MX51_PAD_CTRL_2)
 #define MX51_PAD_NANDF_RB3__GPIO_3_11           IOMUX_PAD(0x504, 0x128, 3, 0x0,   0, NO_PAD_CTRL)
+#define MX51_PAD_NANDF_RB3__FEC_RXCLK		IOMUX_PAD(0x504, 0x128, 1, 0x0,   0, MX51_PAD_CTRL_2)
+#define MX51_PAD_NANDF_RB6__FEC_RDAT0		IOMUX_PAD(0x5DC, 0x134, 1, 0x0,   0, MX51_PAD_CTRL_4)
+#define MX51_PAD_NANDF_RB7__FEC_TDAT0		IOMUX_PAD(0x5E0, 0x138, 1, 0x0,   0, MX51_PAD_CTRL_5)
 #define MX51_PAD_GPIO_NAND__GPIO_3_12           IOMUX_PAD(0x514, 0x12C, 3, 0x0,   0, NO_PAD_CTRL)
 #define MX51_PAD_NANDF_CS0__GPIO_3_16           IOMUX_PAD(0x518, 0x130, 3, 0x0,   0, NO_PAD_CTRL)
 #define MX51_PAD_NANDF_CS1__GPIO_3_17           IOMUX_PAD(0x51C, 0x134, 3, 0x0,   0, NO_PAD_CTRL)
 #define MX51_PAD_NANDF_CS2__GPIO_3_18           IOMUX_PAD(0x520, 0x138, 3, 0x0,   0, NO_PAD_CTRL)
+#define MX51_PAD_NANDF_CS2__FEC_TX_ER		IOMUX_PAD(0x520, 0x138, 2, 0x0,   0, MX51_PAD_CTRL_5)
 #define MX51_PAD_NANDF_CS3__GPIO_3_19           IOMUX_PAD(0x524, 0x13C, 3, 0x0,   0, NO_PAD_CTRL)
+#define MX51_PAD_NANDF_CS3__FEC_MDC		IOMUX_PAD(0x524, 0x13C, 2, 0x0,   0, MX51_PAD_CTRL_5)
 #define MX51_PAD_NANDF_CS4__GPIO_3_20           IOMUX_PAD(0x528, 0x140, 3, 0x0,   0, NO_PAD_CTRL)
+#define MX51_PAD_NANDF_CS4__FEC_TDAT1		IOMUX_PAD(0x528, 0x140, 2, 0x0,   0, MX51_PAD_CTRL_5)
 #define MX51_PAD_NANDF_CS5__GPIO_3_21           IOMUX_PAD(0x52C, 0x144, 3, 0x0,   0, NO_PAD_CTRL)
+#define MX51_PAD_NANDF_CS5__FEC_TDAT2		IOMUX_PAD(0x52C, 0x144, 2, 0x0,   0, MX51_PAD_CTRL_5)
 #define MX51_PAD_NANDF_CS6__GPIO_3_22           IOMUX_PAD(0x530, 0x148, 3, 0x0,   0, NO_PAD_CTRL)
+#define MX51_PAD_NANDF_CS6__FEC_TDAT3		IOMUX_PAD(0x530, 0x148, 2, 0x0,   0, MX51_PAD_CTRL_5)
 #define MX51_PAD_NANDF_CS7__GPIO_3_23           IOMUX_PAD(0x534, 0x14C, 3, 0x0,   0, NO_PAD_CTRL)
+#define MX51_PAD_NANDF_CS7__FEC_TX_EN		IOMUX_PAD(0x534, 0x14C, 1, 0x0,   0, MX51_PAD_CTRL_5)
 #define MX51_PAD_NANDF_RDY_INT__GPIO_3_24       IOMUX_PAD(0x538, 0x150, 3, 0x0,   0, NO_PAD_CTRL)
+#define MX51_PAD_NANDF_RDY_INT__FEC_TX_CLK	IOMUX_PAD(0x538, 0x150, 1, 0x0,   0, MX51_PAD_CTRL_4)
 #define MX51_PAD_NANDF_D15__GPIO_3_25           IOMUX_PAD(0x53C, 0x154, 3, 0x0,   0, NO_PAD_CTRL)
 #define MX51_PAD_NANDF_D14__GPIO_3_26           IOMUX_PAD(0x540, 0x158, 3, 0x0,   0, NO_PAD_CTRL)
 #define MX51_PAD_NANDF_D13__GPIO_3_27           IOMUX_PAD(0x544, 0x15C, 3, 0x0,   0, NO_PAD_CTRL)