arch/arm/mach-mx5/board-mx51_efikamx.c - nest-cam/v179/linux - Git at Google

 /*
  * Copyright (C) 2010 Linaro Limited
  *
  * based on code from the following
  * Copyright 2009-2010 Freescale Semiconductor, Inc. All Rights Reserved.
  * Copyright 2009-2010 Pegatron Corporation. All Rights Reserved.
  * Copyright 2009-2010 Genesi USA, Inc. All Rights Reserved.
  *
  * The code contained herein is licensed under the GNU General Public
  * License. You may obtain a copy of the GNU General Public License
  * Version 2 or later at the following locations:
  *
  * http://www.opensource.org/licenses/gpl-license.html
  * http://www.gnu.org/copyleft/gpl.html
  */

 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/i2c.h>
 #include <linux/gpio.h>
 #include <linux/leds.h>
 #include <linux/input.h>
 #include <linux/delay.h>
 #include <linux/io.h>
 #include <linux/fsl_devices.h>
 #include <linux/spi/flash.h>
 #include <linux/spi/spi.h>

 #include <mach/common.h>
 #include <mach/hardware.h>
 #include <mach/iomux-mx51.h>
 #include <mach/i2c.h>
 #include <mach/mxc_ehci.h>

 #include <asm/irq.h>
 #include <asm/setup.h>
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/time.h>

 #include "devices-imx51.h"
 #include "devices.h"

 #define	MX51_USB_PLL_DIV_24_MHZ	0x01

 #define EFIKAMX_PCBID0		IMX_GPIO_NR(3, 16)
 #define EFIKAMX_PCBID1		IMX_GPIO_NR(3, 17)
 #define EFIKAMX_PCBID2		IMX_GPIO_NR(3, 11)

 #define EFIKAMX_BLUE_LED	IMX_GPIO_NR(3, 13)
 #define EFIKAMX_GREEN_LED	IMX_GPIO_NR(3, 14)
 #define EFIKAMX_RED_LED		IMX_GPIO_NR(3, 15)

 #define EFIKAMX_POWER_KEY	IMX_GPIO_NR(2, 31)

 #define EFIKAMX_SPI_CS0		IMX_GPIO_NR(4, 24)
 #define EFIKAMX_SPI_CS1		IMX_GPIO_NR(4, 25)

 /* board 1.1 doesn't have same reset gpio */
 #define EFIKAMX_RESET1_1	IMX_GPIO_NR(3, 2)
 #define EFIKAMX_RESET		IMX_GPIO_NR(1, 4)

 /* the pci ids pin have pull up. they're driven low according to board id */
 #define MX51_PAD_PCBID0	IOMUX_PAD(0x518, 0x130, 3, 0x0,   0, PAD_CTL_PUS_100K_UP)
 #define MX51_PAD_PCBID1	IOMUX_PAD(0x51C, 0x134, 3, 0x0,   0, PAD_CTL_PUS_100K_UP)
 #define MX51_PAD_PCBID2	IOMUX_PAD(0x504, 0x128, 3, 0x0,   0, PAD_CTL_PUS_100K_UP)
 #define MX51_PAD_PWRKEY	IOMUX_PAD(0x48c, 0x0f8, 1, 0x0,   0, PAD_CTL_PUS_100K_UP | PAD_CTL_PKE)

 static iomux_v3_cfg_t mx51efikamx_pads[] = {
 	/* UART1 */
 	MX51_PAD_UART1_RXD__UART1_RXD,
 	MX51_PAD_UART1_TXD__UART1_TXD,
 	MX51_PAD_UART1_RTS__UART1_RTS,
 	MX51_PAD_UART1_CTS__UART1_CTS,
 	/* board id */
 	MX51_PAD_PCBID0,
 	MX51_PAD_PCBID1,
 	MX51_PAD_PCBID2,

 	/* SD 1 */
 	MX51_PAD_SD1_CMD__SD1_CMD,
 	MX51_PAD_SD1_CLK__SD1_CLK,
 	MX51_PAD_SD1_DATA0__SD1_DATA0,
 	MX51_PAD_SD1_DATA1__SD1_DATA1,
 	MX51_PAD_SD1_DATA2__SD1_DATA2,
 	MX51_PAD_SD1_DATA3__SD1_DATA3,

 	/* SD 2 */
 	MX51_PAD_SD2_CMD__SD2_CMD,
 	MX51_PAD_SD2_CLK__SD2_CLK,
 	MX51_PAD_SD2_DATA0__SD2_DATA0,
 	MX51_PAD_SD2_DATA1__SD2_DATA1,
 	MX51_PAD_SD2_DATA2__SD2_DATA2,
 	MX51_PAD_SD2_DATA3__SD2_DATA3,

 	/* SD/MMC WP/CD */
 	MX51_PAD_GPIO1_0__SD1_CD,
 	MX51_PAD_GPIO1_1__SD1_WP,
 	MX51_PAD_GPIO1_7__SD2_WP,
 	MX51_PAD_GPIO1_8__SD2_CD,

 	/* leds */
 	MX51_PAD_CSI1_D9__GPIO3_13,
 	MX51_PAD_CSI1_VSYNC__GPIO3_14,
 	MX51_PAD_CSI1_HSYNC__GPIO3_15,

 	/* power key */
 	MX51_PAD_PWRKEY,

 	/* spi */
 	MX51_PAD_CSPI1_MOSI__ECSPI1_MOSI,
 	MX51_PAD_CSPI1_MISO__ECSPI1_MISO,
 	MX51_PAD_CSPI1_SS0__GPIO4_24,
 	MX51_PAD_CSPI1_SS1__GPIO4_25,
 	MX51_PAD_CSPI1_RDY__ECSPI1_RDY,
 	MX51_PAD_CSPI1_SCLK__ECSPI1_SCLK,

 	/* reset */
 	MX51_PAD_DI1_PIN13__GPIO3_2,
 	MX51_PAD_GPIO1_4__GPIO1_4,
 };

 /* Serial ports */
 #if defined(CONFIG_SERIAL_IMX) || defined(CONFIG_SERIAL_IMX_MODULE)
 static const struct imxuart_platform_data uart_pdata = {
 	.flags = IMXUART_HAVE_RTSCTS,
 };

 static inline void mxc_init_imx_uart(void)
 {
 	imx51_add_imx_uart(0, &uart_pdata);
 	imx51_add_imx_uart(1, &uart_pdata);
 	imx51_add_imx_uart(2, &uart_pdata);
 }
 #else /* !SERIAL_IMX */
 static inline void mxc_init_imx_uart(void)
 {
 }
 #endif /* SERIAL_IMX */

 /* 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.
  */
 static int initialize_otg_port(struct platform_device *pdev)
 {
 	u32 v;
 	void __iomem *usb_base;
 	void __iomem *usbother_base;
 	usb_base = ioremap(MX51_OTG_BASE_ADDR, SZ_4K);
 	if (!usb_base)
 		return -ENOMEM;
 	usbother_base = (void __iomem *)(usb_base + MX5_USBOTHER_REGS_OFFSET);

 	/* Set the PHY clock to 19.2MHz */
 	v = __raw_readl(usbother_base + MXC_USB_PHY_CTR_FUNC2_OFFSET);
 	v &= ~MX5_USB_UTMI_PHYCTRL1_PLLDIV_MASK;
 	v |= MX51_USB_PLL_DIV_24_MHZ;
 	__raw_writel(v, usbother_base + MXC_USB_PHY_CTR_FUNC2_OFFSET);
 	iounmap(usb_base);
 	return 0;
 }

 static struct mxc_usbh_platform_data dr_utmi_config = {
 	.init   = initialize_otg_port,
 	.portsc = MXC_EHCI_UTMI_16BIT,
 	.flags  = MXC_EHCI_INTERNAL_PHY,
 };

 /*   PCBID2  PCBID1 PCBID0  STATE
 	1       1      1    ER1:rev1.1
 	1       1      0    ER2:rev1.2
 	1       0      1    ER3:rev1.3
 	1       0      0    ER4:rev1.4
 */
 static void __init mx51_efikamx_board_id(void)
 {
 	int id;

 	/* things are taking time to settle */
 	msleep(150);

 	gpio_request(EFIKAMX_PCBID0, "pcbid0");
 	gpio_direction_input(EFIKAMX_PCBID0);
 	gpio_request(EFIKAMX_PCBID1, "pcbid1");
 	gpio_direction_input(EFIKAMX_PCBID1);
 	gpio_request(EFIKAMX_PCBID2, "pcbid2");
 	gpio_direction_input(EFIKAMX_PCBID2);

 	id = gpio_get_value(EFIKAMX_PCBID0);
 	id |= gpio_get_value(EFIKAMX_PCBID1) << 1;
 	id |= gpio_get_value(EFIKAMX_PCBID2) << 2;

 	switch (id) {
 	case 7:
 		system_rev = 0x11;
 		break;
 	case 6:
 		system_rev = 0x12;
 		break;
 	case 5:
 		system_rev = 0x13;
 		break;
 	case 4:
 		system_rev = 0x14;
 		break;
 	default:
 		system_rev = 0x10;
 		break;
 	}

 	if ((system_rev == 0x10)
 		|| (system_rev == 0x12)
 		|| (system_rev == 0x14)) {
 		printk(KERN_WARNING
 			"EfikaMX: Unsupported board revision 1.%u!\n",
 			system_rev & 0xf);
 	}
 }

 static struct gpio_led mx51_efikamx_leds[] = {
 	{
 		.name = "efikamx:green",
 		.default_trigger = "default-on",
 		.gpio = EFIKAMX_GREEN_LED,
 	},
 	{
 		.name = "efikamx:red",
 		.default_trigger = "ide-disk",
 		.gpio = EFIKAMX_RED_LED,
 	},
 	{
 		.name = "efikamx:blue",
 		.default_trigger = "mmc0",
 		.gpio = EFIKAMX_BLUE_LED,
 	},
 };

 static struct gpio_led_platform_data mx51_efikamx_leds_data = {
 	.leds = mx51_efikamx_leds,
 	.num_leds = ARRAY_SIZE(mx51_efikamx_leds),
 };

 static struct platform_device mx51_efikamx_leds_device = {
 	.name = "leds-gpio",
 	.id = -1,
 	.dev = {
 		.platform_data = &mx51_efikamx_leds_data,
 	},
 };

 static struct gpio_keys_button mx51_efikamx_powerkey[] = {
 	{
 		.code = KEY_POWER,
 		.gpio = EFIKAMX_POWER_KEY,
 		.type = EV_PWR,
 		.desc = "Power Button (CM)",
 		.wakeup = 1,
 		.debounce_interval = 10, /* ms */
 	},
 };

 static const struct gpio_keys_platform_data mx51_efikamx_powerkey_data __initconst = {
 	.buttons = mx51_efikamx_powerkey,
 	.nbuttons = ARRAY_SIZE(mx51_efikamx_powerkey),
 };

 static struct mtd_partition mx51_efikamx_spi_nor_partitions[] = {
 	{
 	 .name = "u-boot",
 	 .offset = 0,
 	 .size = SZ_256K,
 	},
 	{
 	  .name = "config",
 	  .offset = MTDPART_OFS_APPEND,
 	  .size = SZ_64K,
 	},
 };

 static struct flash_platform_data mx51_efikamx_spi_flash_data = {
 	.name		= "spi_flash",
 	.parts		= mx51_efikamx_spi_nor_partitions,
 	.nr_parts	= ARRAY_SIZE(mx51_efikamx_spi_nor_partitions),
 	.type		= "sst25vf032b",
 };

 static struct spi_board_info mx51_efikamx_spi_board_info[] __initdata = {
 	{
 		.modalias = "m25p80",
 		.max_speed_hz = 25000000,
 		.bus_num = 0,
 		.chip_select = 1,
 		.platform_data = &mx51_efikamx_spi_flash_data,
 		.irq = -1,
 	},
 };

 static int mx51_efikamx_spi_cs[] = {
 	EFIKAMX_SPI_CS0,
 	EFIKAMX_SPI_CS1,
 };

 static const struct spi_imx_master mx51_efikamx_spi_pdata __initconst = {
 	.chipselect     = mx51_efikamx_spi_cs,
 	.num_chipselect = ARRAY_SIZE(mx51_efikamx_spi_cs),
 };

 void mx51_efikamx_reset(void)
 {
 	if (system_rev == 0x11)
 		gpio_direction_output(EFIKAMX_RESET1_1, 0);
 	else
 		gpio_direction_output(EFIKAMX_RESET, 0);
 }

 static void __init mxc_board_init(void)
 {
 	mxc_iomux_v3_setup_multiple_pads(mx51efikamx_pads,
 					ARRAY_SIZE(mx51efikamx_pads));
 	mx51_efikamx_board_id();
 	mxc_register_device(&mxc_usbdr_host_device, &dr_utmi_config);
 	mxc_init_imx_uart();
 	imx51_add_sdhci_esdhc_imx(0, NULL);

 	/* on < 1.2 boards both SD controllers are used */
 	if (system_rev < 0x12) {
 		imx51_add_sdhci_esdhc_imx(1, NULL);
 		mx51_efikamx_leds[2].default_trigger = "mmc1";
 	}

 	platform_device_register(&mx51_efikamx_leds_device);
 	imx51_add_gpio_keys(&mx51_efikamx_powerkey_data);

 	spi_register_board_info(mx51_efikamx_spi_board_info,
 		ARRAY_SIZE(mx51_efikamx_spi_board_info));
 	imx51_add_ecspi(0, &mx51_efikamx_spi_pdata);

 	if (system_rev == 0x11) {
 		gpio_request(EFIKAMX_RESET1_1, "reset");
 		gpio_direction_output(EFIKAMX_RESET1_1, 1);
 	} else {
 		gpio_request(EFIKAMX_RESET, "reset");
 		gpio_direction_output(EFIKAMX_RESET, 1);
 	}
 }

 static void __init mx51_efikamx_timer_init(void)
 {
 	mx51_clocks_init(32768, 24000000, 22579200, 24576000);
 }

 static struct sys_timer mxc_timer = {
 	.init	= mx51_efikamx_timer_init,
 };

 MACHINE_START(MX51_EFIKAMX, "Genesi EfikaMX nettop")
 	/* Maintainer: Amit Kucheria <amit.kucheria@linaro.org> */
 	.boot_params = MX51_PHYS_OFFSET + 0x100,
 	.map_io = mx51_map_io,
 	.init_irq = mx51_init_irq,
 	.init_machine =  mxc_board_init,
 	.timer = &mxc_timer,
 MACHINE_END
	/*
	* Copyright (C) 2010 Linaro Limited
	*
	* based on code from the following
	* Copyright 2009-2010 Freescale Semiconductor, Inc. All Rights Reserved.
	* Copyright 2009-2010 Pegatron Corporation. All Rights Reserved.
	* Copyright 2009-2010 Genesi USA, Inc. All Rights Reserved.
	*
	* The code contained herein is licensed under the GNU General Public
	* License. You may obtain a copy of the GNU General Public License
	* Version 2 or later at the following locations:
	*
	* http://www.opensource.org/licenses/gpl-license.html
	* http://www.gnu.org/copyleft/gpl.html
	*/

	#include <linux/init.h>
	#include <linux/platform_device.h>
	#include <linux/i2c.h>
	#include <linux/gpio.h>
	#include <linux/leds.h>
	#include <linux/input.h>
	#include <linux/delay.h>
	#include <linux/io.h>
	#include <linux/fsl_devices.h>
	#include <linux/spi/flash.h>
	#include <linux/spi/spi.h>

	#include <mach/common.h>
	#include <mach/hardware.h>
	#include <mach/iomux-mx51.h>
	#include <mach/i2c.h>
	#include <mach/mxc_ehci.h>

	#include <asm/irq.h>
	#include <asm/setup.h>
	#include <asm/mach-types.h>
	#include <asm/mach/arch.h>
	#include <asm/mach/time.h>

	#include "devices-imx51.h"
	#include "devices.h"

	#define MX51_USB_PLL_DIV_24_MHZ 0x01

	#define EFIKAMX_PCBID0 IMX_GPIO_NR(3, 16)
	#define EFIKAMX_PCBID1 IMX_GPIO_NR(3, 17)
	#define EFIKAMX_PCBID2 IMX_GPIO_NR(3, 11)

	#define EFIKAMX_BLUE_LED IMX_GPIO_NR(3, 13)
	#define EFIKAMX_GREEN_LED IMX_GPIO_NR(3, 14)
	#define EFIKAMX_RED_LED IMX_GPIO_NR(3, 15)

	#define EFIKAMX_POWER_KEY IMX_GPIO_NR(2, 31)

	#define EFIKAMX_SPI_CS0 IMX_GPIO_NR(4, 24)
	#define EFIKAMX_SPI_CS1 IMX_GPIO_NR(4, 25)

	/* board 1.1 doesn't have same reset gpio */
	#define EFIKAMX_RESET1_1 IMX_GPIO_NR(3, 2)
	#define EFIKAMX_RESET IMX_GPIO_NR(1, 4)

	/* the pci ids pin have pull up. they're driven low according to board id */
	#define MX51_PAD_PCBID0 IOMUX_PAD(0x518, 0x130, 3, 0x0, 0, PAD_CTL_PUS_100K_UP)
	#define MX51_PAD_PCBID1 IOMUX_PAD(0x51C, 0x134, 3, 0x0, 0, PAD_CTL_PUS_100K_UP)
	#define MX51_PAD_PCBID2 IOMUX_PAD(0x504, 0x128, 3, 0x0, 0, PAD_CTL_PUS_100K_UP)
	#define MX51_PAD_PWRKEY IOMUX_PAD(0x48c, 0x0f8, 1, 0x0, 0, PAD_CTL_PUS_100K_UP \| PAD_CTL_PKE)

	static iomux_v3_cfg_t mx51efikamx_pads[] = {
	/* UART1 */
	MX51_PAD_UART1_RXD__UART1_RXD,
	MX51_PAD_UART1_TXD__UART1_TXD,
	MX51_PAD_UART1_RTS__UART1_RTS,
	MX51_PAD_UART1_CTS__UART1_CTS,
	/* board id */
	MX51_PAD_PCBID0,
	MX51_PAD_PCBID1,
	MX51_PAD_PCBID2,

	/* SD 1 */
	MX51_PAD_SD1_CMD__SD1_CMD,
	MX51_PAD_SD1_CLK__SD1_CLK,
	MX51_PAD_SD1_DATA0__SD1_DATA0,
	MX51_PAD_SD1_DATA1__SD1_DATA1,
	MX51_PAD_SD1_DATA2__SD1_DATA2,
	MX51_PAD_SD1_DATA3__SD1_DATA3,

	/* SD 2 */
	MX51_PAD_SD2_CMD__SD2_CMD,
	MX51_PAD_SD2_CLK__SD2_CLK,
	MX51_PAD_SD2_DATA0__SD2_DATA0,
	MX51_PAD_SD2_DATA1__SD2_DATA1,
	MX51_PAD_SD2_DATA2__SD2_DATA2,
	MX51_PAD_SD2_DATA3__SD2_DATA3,

	/* SD/MMC WP/CD */
	MX51_PAD_GPIO1_0__SD1_CD,
	MX51_PAD_GPIO1_1__SD1_WP,
	MX51_PAD_GPIO1_7__SD2_WP,
	MX51_PAD_GPIO1_8__SD2_CD,

	/* leds */
	MX51_PAD_CSI1_D9__GPIO3_13,
	MX51_PAD_CSI1_VSYNC__GPIO3_14,
	MX51_PAD_CSI1_HSYNC__GPIO3_15,

	/* power key */
	MX51_PAD_PWRKEY,

	/* spi */
	MX51_PAD_CSPI1_MOSI__ECSPI1_MOSI,
	MX51_PAD_CSPI1_MISO__ECSPI1_MISO,
	MX51_PAD_CSPI1_SS0__GPIO4_24,
	MX51_PAD_CSPI1_SS1__GPIO4_25,
	MX51_PAD_CSPI1_RDY__ECSPI1_RDY,
	MX51_PAD_CSPI1_SCLK__ECSPI1_SCLK,

	/* reset */
	MX51_PAD_DI1_PIN13__GPIO3_2,
	MX51_PAD_GPIO1_4__GPIO1_4,
	};

	/* Serial ports */
	#if defined(CONFIG_SERIAL_IMX) \|\| defined(CONFIG_SERIAL_IMX_MODULE)
	static const struct imxuart_platform_data uart_pdata = {
	.flags = IMXUART_HAVE_RTSCTS,
	};

	static inline void mxc_init_imx_uart(void)
	{
	imx51_add_imx_uart(0, &uart_pdata);
	imx51_add_imx_uart(1, &uart_pdata);
	imx51_add_imx_uart(2, &uart_pdata);
	}
	#else /* !SERIAL_IMX */
	static inline void mxc_init_imx_uart(void)
	{
	}
	#endif /* SERIAL_IMX */

	/* 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.
	*/
	static int initialize_otg_port(struct platform_device *pdev)
	{
	u32 v;
	void __iomem *usb_base;
	void __iomem *usbother_base;
	usb_base = ioremap(MX51_OTG_BASE_ADDR, SZ_4K);
	if (!usb_base)
	return -ENOMEM;
	usbother_base = (void __iomem *)(usb_base + MX5_USBOTHER_REGS_OFFSET);

	/* Set the PHY clock to 19.2MHz */
	v = __raw_readl(usbother_base + MXC_USB_PHY_CTR_FUNC2_OFFSET);
	v &= ~MX5_USB_UTMI_PHYCTRL1_PLLDIV_MASK;
	v \|= MX51_USB_PLL_DIV_24_MHZ;
	__raw_writel(v, usbother_base + MXC_USB_PHY_CTR_FUNC2_OFFSET);
	iounmap(usb_base);
	return 0;
	}

	static struct mxc_usbh_platform_data dr_utmi_config = {
	.init = initialize_otg_port,
	.portsc = MXC_EHCI_UTMI_16BIT,
	.flags = MXC_EHCI_INTERNAL_PHY,
	};

	/* PCBID2 PCBID1 PCBID0 STATE
	1 1 1 ER1:rev1.1
	1 1 0 ER2:rev1.2
	1 0 1 ER3:rev1.3
	1 0 0 ER4:rev1.4
	*/
	static void __init mx51_efikamx_board_id(void)
	{
	int id;

	/* things are taking time to settle */
	msleep(150);

	gpio_request(EFIKAMX_PCBID0, "pcbid0");
	gpio_direction_input(EFIKAMX_PCBID0);
	gpio_request(EFIKAMX_PCBID1, "pcbid1");
	gpio_direction_input(EFIKAMX_PCBID1);
	gpio_request(EFIKAMX_PCBID2, "pcbid2");
	gpio_direction_input(EFIKAMX_PCBID2);

	id = gpio_get_value(EFIKAMX_PCBID0);
	id \|= gpio_get_value(EFIKAMX_PCBID1) << 1;
	id \|= gpio_get_value(EFIKAMX_PCBID2) << 2;

	switch (id) {
	case 7:
	system_rev = 0x11;
	break;
	case 6:
	system_rev = 0x12;
	break;
	case 5:
	system_rev = 0x13;
	break;
	case 4:
	system_rev = 0x14;
	break;
	default:
	system_rev = 0x10;
	break;
	}

	if ((system_rev == 0x10)
	\|\| (system_rev == 0x12)
	\|\| (system_rev == 0x14)) {
	printk(KERN_WARNING
	"EfikaMX: Unsupported board revision 1.%u!\n",
	system_rev & 0xf);
	}
	}

	static struct gpio_led mx51_efikamx_leds[] = {
	{
	.name = "efikamx:green",
	.default_trigger = "default-on",
	.gpio = EFIKAMX_GREEN_LED,
	},
	{
	.name = "efikamx:red",
	.default_trigger = "ide-disk",
	.gpio = EFIKAMX_RED_LED,
	},
	{
	.name = "efikamx:blue",
	.default_trigger = "mmc0",
	.gpio = EFIKAMX_BLUE_LED,
	},
	};

	static struct gpio_led_platform_data mx51_efikamx_leds_data = {
	.leds = mx51_efikamx_leds,
	.num_leds = ARRAY_SIZE(mx51_efikamx_leds),
	};

	static struct platform_device mx51_efikamx_leds_device = {
	.name = "leds-gpio",
	.id = -1,
	.dev = {
	.platform_data = &mx51_efikamx_leds_data,
	},
	};

	static struct gpio_keys_button mx51_efikamx_powerkey[] = {
	{
	.code = KEY_POWER,
	.gpio = EFIKAMX_POWER_KEY,
	.type = EV_PWR,
	.desc = "Power Button (CM)",
	.wakeup = 1,
	.debounce_interval = 10, /* ms */
	},
	};

	static const struct gpio_keys_platform_data mx51_efikamx_powerkey_data __initconst = {
	.buttons = mx51_efikamx_powerkey,
	.nbuttons = ARRAY_SIZE(mx51_efikamx_powerkey),
	};

	static struct mtd_partition mx51_efikamx_spi_nor_partitions[] = {
	{
	.name = "u-boot",
	.offset = 0,
	.size = SZ_256K,
	},
	{
	.name = "config",
	.offset = MTDPART_OFS_APPEND,
	.size = SZ_64K,
	},
	};

	static struct flash_platform_data mx51_efikamx_spi_flash_data = {
	.name = "spi_flash",
	.parts = mx51_efikamx_spi_nor_partitions,
	.nr_parts = ARRAY_SIZE(mx51_efikamx_spi_nor_partitions),
	.type = "sst25vf032b",
	};

	static struct spi_board_info mx51_efikamx_spi_board_info[] __initdata = {
	{
	.modalias = "m25p80",
	.max_speed_hz = 25000000,
	.bus_num = 0,
	.chip_select = 1,
	.platform_data = &mx51_efikamx_spi_flash_data,
	.irq = -1,
	},
	};

	static int mx51_efikamx_spi_cs[] = {
	EFIKAMX_SPI_CS0,
	EFIKAMX_SPI_CS1,
	};

	static const struct spi_imx_master mx51_efikamx_spi_pdata __initconst = {
	.chipselect = mx51_efikamx_spi_cs,
	.num_chipselect = ARRAY_SIZE(mx51_efikamx_spi_cs),
	};

	void mx51_efikamx_reset(void)
	{
	if (system_rev == 0x11)
	gpio_direction_output(EFIKAMX_RESET1_1, 0);
	else
	gpio_direction_output(EFIKAMX_RESET, 0);
	}

	static void __init mxc_board_init(void)
	{
	mxc_iomux_v3_setup_multiple_pads(mx51efikamx_pads,
	ARRAY_SIZE(mx51efikamx_pads));
	mx51_efikamx_board_id();
	mxc_register_device(&mxc_usbdr_host_device, &dr_utmi_config);
	mxc_init_imx_uart();
	imx51_add_sdhci_esdhc_imx(0, NULL);

	/* on < 1.2 boards both SD controllers are used */
	if (system_rev < 0x12) {
	imx51_add_sdhci_esdhc_imx(1, NULL);
	mx51_efikamx_leds[2].default_trigger = "mmc1";
	}

	platform_device_register(&mx51_efikamx_leds_device);
	imx51_add_gpio_keys(&mx51_efikamx_powerkey_data);

	spi_register_board_info(mx51_efikamx_spi_board_info,
	ARRAY_SIZE(mx51_efikamx_spi_board_info));
	imx51_add_ecspi(0, &mx51_efikamx_spi_pdata);

	if (system_rev == 0x11) {
	gpio_request(EFIKAMX_RESET1_1, "reset");
	gpio_direction_output(EFIKAMX_RESET1_1, 1);
	} else {
	gpio_request(EFIKAMX_RESET, "reset");
	gpio_direction_output(EFIKAMX_RESET, 1);
	}
	}

	static void __init mx51_efikamx_timer_init(void)
	{
	mx51_clocks_init(32768, 24000000, 22579200, 24576000);
	}

	static struct sys_timer mxc_timer = {
	.init = mx51_efikamx_timer_init,
	};

	MACHINE_START(MX51_EFIKAMX, "Genesi EfikaMX nettop")
	/* Maintainer: Amit Kucheria <amit.kucheria@linaro.org> */
	.boot_params = MX51_PHYS_OFFSET + 0x100,
	.map_io = mx51_map_io,
	.init_irq = mx51_init_irq,
	.init_machine = mxc_board_init,
	.timer = &mxc_timer,
	MACHINE_END