arch/arm/mach-imx/mach-pca100.c - kernel/msm-4.9 - Gitiles

 /*
  * Copyright 2007 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix
  * Copyright (C) 2009 Sascha Hauer (kernel@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.
  */

 #include <linux/platform_device.h>
 #include <linux/io.h>
 #include <linux/i2c.h>
 #include <linux/platform_data/at24.h>
 #include <linux/dma-mapping.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/eeprom.h>
 #include <linux/irq.h>
 #include <linux/delay.h>
 #include <linux/gpio.h>
 #include <linux/usb/otg.h>
 #include <linux/usb/ulpi.h>

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

 #include "common.h"
 #include "devices-imx27.h"
 #include "hardware.h"
 #include "iomux-mx27.h"
 #include "ulpi.h"

 #define OTG_PHY_CS_GPIO (GPIO_PORTB + 23)
 #define USBH2_PHY_CS_GPIO (GPIO_PORTB + 24)
 #define SPI1_SS0 (GPIO_PORTD + 28)
 #define SPI1_SS1 (GPIO_PORTD + 27)
 #define SD2_CD (GPIO_PORTC + 29)

 static const int pca100_pins[] __initconst = {
 	/* UART1 */
 	PE12_PF_UART1_TXD,
 	PE13_PF_UART1_RXD,
 	PE14_PF_UART1_CTS,
 	PE15_PF_UART1_RTS,
 	/* SDHC */
 	PB4_PF_SD2_D0,
 	PB5_PF_SD2_D1,
 	PB6_PF_SD2_D2,
 	PB7_PF_SD2_D3,
 	PB8_PF_SD2_CMD,
 	PB9_PF_SD2_CLK,
 	SD2_CD | GPIO_GPIO | GPIO_IN,
 	/* 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,
 	/* SSI1 */
 	PC20_PF_SSI1_FS,
 	PC21_PF_SSI1_RXD,
 	PC22_PF_SSI1_TXD,
 	PC23_PF_SSI1_CLK,
 	/* onboard I2C */
 	PC5_PF_I2C2_SDA,
 	PC6_PF_I2C2_SCL,
 	/* external I2C */
 	PD17_PF_I2C_DATA,
 	PD18_PF_I2C_CLK,
 	/* SPI1 */
 	PD25_PF_CSPI1_RDY,
 	PD29_PF_CSPI1_SCLK,
 	PD30_PF_CSPI1_MISO,
 	PD31_PF_CSPI1_MOSI,
 	/* OTG */
 	OTG_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
 	PC7_PF_USBOTG_DATA5,
 	PC8_PF_USBOTG_DATA6,
 	PC9_PF_USBOTG_DATA0,
 	PC10_PF_USBOTG_DATA2,
 	PC11_PF_USBOTG_DATA1,
 	PC12_PF_USBOTG_DATA4,
 	PC13_PF_USBOTG_DATA3,
 	PE0_PF_USBOTG_NXT,
 	PE1_PF_USBOTG_STP,
 	PE2_PF_USBOTG_DIR,
 	PE24_PF_USBOTG_CLK,
 	PE25_PF_USBOTG_DATA7,
 	/* USBH2 */
 	USBH2_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
 	PA0_PF_USBH2_CLK,
 	PA1_PF_USBH2_DIR,
 	PA2_PF_USBH2_DATA7,
 	PA3_PF_USBH2_NXT,
 	PA4_PF_USBH2_STP,
 	PD19_AF_USBH2_DATA4,
 	PD20_AF_USBH2_DATA3,
 	PD21_AF_USBH2_DATA6,
 	PD22_AF_USBH2_DATA0,
 	PD23_AF_USBH2_DATA2,
 	PD24_AF_USBH2_DATA1,
 	PD26_AF_USBH2_DATA5,
 	/* display */
 	PA5_PF_LSCLK,
 	PA6_PF_LD0,
 	PA7_PF_LD1,
 	PA8_PF_LD2,
 	PA9_PF_LD3,
 	PA10_PF_LD4,
 	PA11_PF_LD5,
 	PA12_PF_LD6,
 	PA13_PF_LD7,
 	PA14_PF_LD8,
 	PA15_PF_LD9,
 	PA16_PF_LD10,
 	PA17_PF_LD11,
 	PA18_PF_LD12,
 	PA19_PF_LD13,
 	PA20_PF_LD14,
 	PA21_PF_LD15,
 	PA22_PF_LD16,
 	PA23_PF_LD17,
 	PA26_PF_PS,
 	PA28_PF_HSYNC,
 	PA29_PF_VSYNC,
 	PA31_PF_OE_ACD,
 	/* free GPIO */
 	GPIO_PORTC | 31 | GPIO_GPIO | GPIO_IN, /* GPIO0_IRQ */
 	GPIO_PORTC | 25 | GPIO_GPIO | GPIO_IN, /* GPIO1_IRQ */
 	GPIO_PORTE | 5 | GPIO_GPIO | GPIO_IN, /* GPIO2_IRQ */
 };

 static const struct imxuart_platform_data uart_pdata __initconst = {
 	.flags = IMXUART_HAVE_RTSCTS,
 };

 static const struct mxc_nand_platform_data
 pca100_nand_board_info __initconst = {
 	.width = 1,
 	.hw_ecc = 1,
 };

 static const struct imxi2c_platform_data pca100_i2c1_data __initconst = {
 	.bitrate = 100000,
 };

 static struct at24_platform_data board_eeprom = {
 	.byte_len = 4096,
 	.page_size = 32,
 	.flags = AT24_FLAG_ADDR16,
 };

 static struct i2c_board_info pca100_i2c_devices[] = {
 	{
 		I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
 		.platform_data = &board_eeprom,
 	}, {
 		I2C_BOARD_INFO("pcf8563", 0x51),
 	}, {
 		I2C_BOARD_INFO("lm75", 0x4a),
 	}
 };

 static struct spi_eeprom at25320 = {
 	.name		= "at25320an",
 	.byte_len	= 4096,
 	.page_size	= 32,
 	.flags		= EE_ADDR2,
 };

 static struct spi_board_info pca100_spi_board_info[] __initdata = {
 	{
 		.modalias = "at25",
 		.max_speed_hz = 30000,
 		.bus_num = 0,
 		.chip_select = 1,
 		.platform_data = &at25320,
 	},
 };

 static int pca100_spi_cs[] = {SPI1_SS0, SPI1_SS1};

 static const struct spi_imx_master pca100_spi0_data __initconst = {
 	.chipselect	= pca100_spi_cs,
 	.num_chipselect = ARRAY_SIZE(pca100_spi_cs),
 };

 static void pca100_ac97_warm_reset(struct snd_ac97 *ac97)
 {
 	mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT);
 	gpio_set_value(GPIO_PORTC + 20, 1);
 	udelay(2);
 	gpio_set_value(GPIO_PORTC + 20, 0);
 	mxc_gpio_mode(PC20_PF_SSI1_FS);
 	msleep(2);
 }

 static void pca100_ac97_cold_reset(struct snd_ac97 *ac97)
 {
 	mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT);  /* FS */
 	gpio_set_value(GPIO_PORTC + 20, 0);
 	mxc_gpio_mode(GPIO_PORTC | 22 | GPIO_GPIO | GPIO_OUT);  /* TX */
 	gpio_set_value(GPIO_PORTC + 22, 0);
 	mxc_gpio_mode(GPIO_PORTC | 28 | GPIO_GPIO | GPIO_OUT);  /* reset */
 	gpio_set_value(GPIO_PORTC + 28, 0);
 	udelay(10);
 	gpio_set_value(GPIO_PORTC + 28, 1);
 	mxc_gpio_mode(PC20_PF_SSI1_FS);
 	mxc_gpio_mode(PC22_PF_SSI1_TXD);
 	msleep(2);
 }

 static const struct imx_ssi_platform_data pca100_ssi_pdata __initconst = {
 	.ac97_reset		= pca100_ac97_cold_reset,
 	.ac97_warm_reset	= pca100_ac97_warm_reset,
 	.flags			= IMX_SSI_USE_AC97,
 };

 static int pca100_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
 		void *data)
 {
 	int ret;

 	ret = request_irq(gpio_to_irq(IMX_GPIO_NR(3, 29)), detect_irq,
 			  IRQF_DISABLED | IRQF_TRIGGER_FALLING,
 			  "imx-mmc-detect", data);
 	if (ret)
 		printk(KERN_ERR
 			"pca100: Failed to reuest irq for sd/mmc detection\n");

 	return ret;
 }

 static void pca100_sdhc2_exit(struct device *dev, void *data)
 {
 	free_irq(gpio_to_irq(IMX_GPIO_NR(3, 29)), data);
 }

 static const struct imxmmc_platform_data sdhc_pdata __initconst = {
 	.init = pca100_sdhc2_init,
 	.exit = pca100_sdhc2_exit,
 };

 static int otg_phy_init(struct platform_device *pdev)
 {
 	gpio_set_value(OTG_PHY_CS_GPIO, 0);

 	mdelay(10);

 	return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
 }

 static struct mxc_usbh_platform_data otg_pdata __initdata = {
 	.init	= otg_phy_init,
 	.portsc	= MXC_EHCI_MODE_ULPI,
 };

 static int usbh2_phy_init(struct platform_device *pdev)
 {
 	gpio_set_value(USBH2_PHY_CS_GPIO, 0);

 	mdelay(10);

 	return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
 }

 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
 	.init	= usbh2_phy_init,
 	.portsc	= MXC_EHCI_MODE_ULPI,
 };

 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
 	.operating_mode = FSL_USB2_DR_DEVICE,
 	.phy_mode       = FSL_USB2_PHY_ULPI,
 };

 static bool otg_mode_host __initdata;

 static int __init pca100_otg_mode(char *options)
 {
 	if (!strcmp(options, "host"))
 		otg_mode_host = true;
 	else if (!strcmp(options, "device"))
 		otg_mode_host = false;
 	else
 		pr_info("otg_mode neither \"host\" nor \"device\". "
 			"Defaulting to device\n");
 	return 1;
 }
 __setup("otg_mode=", pca100_otg_mode);

 /* framebuffer info */
 static struct imx_fb_videomode pca100_fb_modes[] = {
 	{
 		.mode = {
 			.name		= "EMERGING-ETV570G0DHU",
 			.refresh	= 60,
 			.xres		= 640,
 			.yres		= 480,
 			.pixclock	= 39722, /* in ps (25.175 MHz) */
 			.hsync_len	= 30,
 			.left_margin	= 114,
 			.right_margin	= 16,
 			.vsync_len	= 3,
 			.upper_margin	= 32,
 			.lower_margin	= 0,
 		},
 		/*
 		 * TFT
 		 * Pixel pol active high
 		 * HSYNC active low
 		 * VSYNC active low
 		 * use HSYNC for ACD count
 		 * line clock disable while idle
 		 * always enable line clock even if no data
 		 */
 		.pcr = 0xf0c08080,
 		.bpp = 16,
 	},
 };

 static const struct imx_fb_platform_data pca100_fb_data __initconst = {
 	.mode = pca100_fb_modes,
 	.num_modes = ARRAY_SIZE(pca100_fb_modes),

 	.pwmr		= 0x00A903FF,
 	.lscr1		= 0x00120300,
 	.dmacr		= 0x00020010,
 };

 static void __init pca100_init(void)
 {
 	int ret;

 	imx27_soc_init();

 	ret = mxc_gpio_setup_multiple_pins(pca100_pins,
 			ARRAY_SIZE(pca100_pins), "PCA100");
 	if (ret)
 		printk(KERN_ERR "pca100: Failed to setup pins (%d)\n", ret);

 	imx27_add_imx_ssi(0, &pca100_ssi_pdata);

 	imx27_add_imx_uart0(&uart_pdata);

 	imx27_add_mxc_mmc(1, &sdhc_pdata);

 	imx27_add_mxc_nand(&pca100_nand_board_info);

 	/* only the i2c master 1 is used on this CPU card */
 	i2c_register_board_info(1, pca100_i2c_devices,
 				ARRAY_SIZE(pca100_i2c_devices));

 	imx27_add_imx_i2c(1, &pca100_i2c1_data);

 	mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_IN);
 	mxc_gpio_mode(GPIO_PORTD | 27 | GPIO_GPIO | GPIO_IN);
 	spi_register_board_info(pca100_spi_board_info,
 				ARRAY_SIZE(pca100_spi_board_info));
 	imx27_add_spi_imx0(&pca100_spi0_data);

 	gpio_request(OTG_PHY_CS_GPIO, "usb-otg-cs");
 	gpio_direction_output(OTG_PHY_CS_GPIO, 1);
 	gpio_request(USBH2_PHY_CS_GPIO, "usb-host2-cs");
 	gpio_direction_output(USBH2_PHY_CS_GPIO, 1);

 	if (otg_mode_host) {
 		otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
 				ULPI_OTG_DRVVBUS_EXT);

 		if (otg_pdata.otg)
 			imx27_add_mxc_ehci_otg(&otg_pdata);
 	} else {
 		gpio_set_value(OTG_PHY_CS_GPIO, 0);
 		imx27_add_fsl_usb2_udc(&otg_device_pdata);
 	}

 	usbh2_pdata.otg = imx_otg_ulpi_create(
 			ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);

 	if (usbh2_pdata.otg)
 		imx27_add_mxc_ehci_hs(2, &usbh2_pdata);

 	imx27_add_imx_fb(&pca100_fb_data);

 	imx27_add_fec(NULL);
 	imx27_add_imx2_wdt();
 	imx27_add_mxc_w1();
 }

 static void __init pca100_timer_init(void)
 {
 	mx27_clocks_init(26000000);
 }

 MACHINE_START(PCA100, "phyCARD-i.MX27")
 	.atag_offset = 0x100,
 	.map_io = mx27_map_io,
 	.init_early = imx27_init_early,
 	.init_irq = mx27_init_irq,
 	.handle_irq = imx27_handle_irq,
 	.init_machine = pca100_init,
 	.init_time	= pca100_timer_init,
 	.restart	= mxc_restart,
 MACHINE_END
	/*
	* Copyright 2007 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix
	* Copyright (C) 2009 Sascha Hauer (kernel@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.
	*/

	#include <linux/platform_device.h>
	#include <linux/io.h>
	#include <linux/i2c.h>
	#include <linux/platform_data/at24.h>
	#include <linux/dma-mapping.h>
	#include <linux/spi/spi.h>
	#include <linux/spi/eeprom.h>
	#include <linux/irq.h>
	#include <linux/delay.h>
	#include <linux/gpio.h>
	#include <linux/usb/otg.h>
	#include <linux/usb/ulpi.h>

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

	#include "common.h"
	#include "devices-imx27.h"
	#include "hardware.h"
	#include "iomux-mx27.h"
	#include "ulpi.h"

	#define OTG_PHY_CS_GPIO (GPIO_PORTB + 23)
	#define USBH2_PHY_CS_GPIO (GPIO_PORTB + 24)
	#define SPI1_SS0 (GPIO_PORTD + 28)
	#define SPI1_SS1 (GPIO_PORTD + 27)
	#define SD2_CD (GPIO_PORTC + 29)

	static const int pca100_pins[] __initconst = {
	/* UART1 */
	PE12_PF_UART1_TXD,
	PE13_PF_UART1_RXD,
	PE14_PF_UART1_CTS,
	PE15_PF_UART1_RTS,
	/* SDHC */
	PB4_PF_SD2_D0,
	PB5_PF_SD2_D1,
	PB6_PF_SD2_D2,
	PB7_PF_SD2_D3,
	PB8_PF_SD2_CMD,
	PB9_PF_SD2_CLK,
	SD2_CD \| GPIO_GPIO \| GPIO_IN,
	/* 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,
	/* SSI1 */
	PC20_PF_SSI1_FS,
	PC21_PF_SSI1_RXD,
	PC22_PF_SSI1_TXD,
	PC23_PF_SSI1_CLK,
	/* onboard I2C */
	PC5_PF_I2C2_SDA,
	PC6_PF_I2C2_SCL,
	/* external I2C */
	PD17_PF_I2C_DATA,
	PD18_PF_I2C_CLK,
	/* SPI1 */
	PD25_PF_CSPI1_RDY,
	PD29_PF_CSPI1_SCLK,
	PD30_PF_CSPI1_MISO,
	PD31_PF_CSPI1_MOSI,
	/* OTG */
	OTG_PHY_CS_GPIO \| GPIO_GPIO \| GPIO_OUT,
	PC7_PF_USBOTG_DATA5,
	PC8_PF_USBOTG_DATA6,
	PC9_PF_USBOTG_DATA0,
	PC10_PF_USBOTG_DATA2,
	PC11_PF_USBOTG_DATA1,
	PC12_PF_USBOTG_DATA4,
	PC13_PF_USBOTG_DATA3,
	PE0_PF_USBOTG_NXT,
	PE1_PF_USBOTG_STP,
	PE2_PF_USBOTG_DIR,
	PE24_PF_USBOTG_CLK,
	PE25_PF_USBOTG_DATA7,
	/* USBH2 */
	USBH2_PHY_CS_GPIO \| GPIO_GPIO \| GPIO_OUT,
	PA0_PF_USBH2_CLK,
	PA1_PF_USBH2_DIR,
	PA2_PF_USBH2_DATA7,
	PA3_PF_USBH2_NXT,
	PA4_PF_USBH2_STP,
	PD19_AF_USBH2_DATA4,
	PD20_AF_USBH2_DATA3,
	PD21_AF_USBH2_DATA6,
	PD22_AF_USBH2_DATA0,
	PD23_AF_USBH2_DATA2,
	PD24_AF_USBH2_DATA1,
	PD26_AF_USBH2_DATA5,
	/* display */
	PA5_PF_LSCLK,
	PA6_PF_LD0,
	PA7_PF_LD1,
	PA8_PF_LD2,
	PA9_PF_LD3,
	PA10_PF_LD4,
	PA11_PF_LD5,
	PA12_PF_LD6,
	PA13_PF_LD7,
	PA14_PF_LD8,
	PA15_PF_LD9,
	PA16_PF_LD10,
	PA17_PF_LD11,
	PA18_PF_LD12,
	PA19_PF_LD13,
	PA20_PF_LD14,
	PA21_PF_LD15,
	PA22_PF_LD16,
	PA23_PF_LD17,
	PA26_PF_PS,
	PA28_PF_HSYNC,
	PA29_PF_VSYNC,
	PA31_PF_OE_ACD,
	/* free GPIO */
	GPIO_PORTC \| 31 \| GPIO_GPIO \| GPIO_IN, /* GPIO0_IRQ */
	GPIO_PORTC \| 25 \| GPIO_GPIO \| GPIO_IN, /* GPIO1_IRQ */
	GPIO_PORTE \| 5 \| GPIO_GPIO \| GPIO_IN, /* GPIO2_IRQ */
	};

	static const struct imxuart_platform_data uart_pdata __initconst = {
	.flags = IMXUART_HAVE_RTSCTS,
	};

	static const struct mxc_nand_platform_data
	pca100_nand_board_info __initconst = {
	.width = 1,
	.hw_ecc = 1,
	};

	static const struct imxi2c_platform_data pca100_i2c1_data __initconst = {
	.bitrate = 100000,
	};

	static struct at24_platform_data board_eeprom = {
	.byte_len = 4096,
	.page_size = 32,
	.flags = AT24_FLAG_ADDR16,
	};

	static struct i2c_board_info pca100_i2c_devices[] = {
	{
	I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
	.platform_data = &board_eeprom,
	}, {
	I2C_BOARD_INFO("pcf8563", 0x51),
	}, {
	I2C_BOARD_INFO("lm75", 0x4a),
	}
	};

	static struct spi_eeprom at25320 = {
	.name = "at25320an",
	.byte_len = 4096,
	.page_size = 32,
	.flags = EE_ADDR2,
	};

	static struct spi_board_info pca100_spi_board_info[] __initdata = {
	{
	.modalias = "at25",
	.max_speed_hz = 30000,
	.bus_num = 0,
	.chip_select = 1,
	.platform_data = &at25320,
	},
	};

	static int pca100_spi_cs[] = {SPI1_SS0, SPI1_SS1};

	static const struct spi_imx_master pca100_spi0_data __initconst = {
	.chipselect = pca100_spi_cs,
	.num_chipselect = ARRAY_SIZE(pca100_spi_cs),
	};

	static void pca100_ac97_warm_reset(struct snd_ac97 *ac97)
	{
	mxc_gpio_mode(GPIO_PORTC \| 20 \| GPIO_GPIO \| GPIO_OUT);
	gpio_set_value(GPIO_PORTC + 20, 1);
	udelay(2);
	gpio_set_value(GPIO_PORTC + 20, 0);
	mxc_gpio_mode(PC20_PF_SSI1_FS);
	msleep(2);
	}

	static void pca100_ac97_cold_reset(struct snd_ac97 *ac97)
	{
	mxc_gpio_mode(GPIO_PORTC \| 20 \| GPIO_GPIO \| GPIO_OUT); /* FS */
	gpio_set_value(GPIO_PORTC + 20, 0);
	mxc_gpio_mode(GPIO_PORTC \| 22 \| GPIO_GPIO \| GPIO_OUT); /* TX */
	gpio_set_value(GPIO_PORTC + 22, 0);
	mxc_gpio_mode(GPIO_PORTC \| 28 \| GPIO_GPIO \| GPIO_OUT); /* reset */
	gpio_set_value(GPIO_PORTC + 28, 0);
	udelay(10);
	gpio_set_value(GPIO_PORTC + 28, 1);
	mxc_gpio_mode(PC20_PF_SSI1_FS);
	mxc_gpio_mode(PC22_PF_SSI1_TXD);
	msleep(2);
	}

	static const struct imx_ssi_platform_data pca100_ssi_pdata __initconst = {
	.ac97_reset = pca100_ac97_cold_reset,
	.ac97_warm_reset = pca100_ac97_warm_reset,
	.flags = IMX_SSI_USE_AC97,
	};

	static int pca100_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
	void *data)
	{
	int ret;

	ret = request_irq(gpio_to_irq(IMX_GPIO_NR(3, 29)), detect_irq,
	IRQF_DISABLED \| IRQF_TRIGGER_FALLING,
	"imx-mmc-detect", data);
	if (ret)
	printk(KERN_ERR
	"pca100: Failed to reuest irq for sd/mmc detection\n");

	return ret;
	}

	static void pca100_sdhc2_exit(struct device dev, void data)
	{
	free_irq(gpio_to_irq(IMX_GPIO_NR(3, 29)), data);
	}

	static const struct imxmmc_platform_data sdhc_pdata __initconst = {
	.init = pca100_sdhc2_init,
	.exit = pca100_sdhc2_exit,
	};

	static int otg_phy_init(struct platform_device *pdev)
	{
	gpio_set_value(OTG_PHY_CS_GPIO, 0);

	mdelay(10);

	return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
	}

	static struct mxc_usbh_platform_data otg_pdata __initdata = {
	.init = otg_phy_init,
	.portsc = MXC_EHCI_MODE_ULPI,
	};

	static int usbh2_phy_init(struct platform_device *pdev)
	{
	gpio_set_value(USBH2_PHY_CS_GPIO, 0);

	mdelay(10);

	return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
	}

	static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
	.init = usbh2_phy_init,
	.portsc = MXC_EHCI_MODE_ULPI,
	};

	static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
	.operating_mode = FSL_USB2_DR_DEVICE,
	.phy_mode = FSL_USB2_PHY_ULPI,
	};

	static bool otg_mode_host __initdata;

	static int __init pca100_otg_mode(char *options)
	{
	if (!strcmp(options, "host"))
	otg_mode_host = true;
	else if (!strcmp(options, "device"))
	otg_mode_host = false;
	else
	pr_info("otg_mode neither \"host\" nor \"device\". "
	"Defaulting to device\n");
	return 1;
	}
	__setup("otg_mode=", pca100_otg_mode);

	/* framebuffer info */
	static struct imx_fb_videomode pca100_fb_modes[] = {
	{
	.mode = {
	.name = "EMERGING-ETV570G0DHU",
	.refresh = 60,
	.xres = 640,
	.yres = 480,
	.pixclock = 39722, /* in ps (25.175 MHz) */
	.hsync_len = 30,
	.left_margin = 114,
	.right_margin = 16,
	.vsync_len = 3,
	.upper_margin = 32,
	.lower_margin = 0,
	},
	/*
	* TFT
	* Pixel pol active high
	* HSYNC active low
	* VSYNC active low
	* use HSYNC for ACD count
	* line clock disable while idle
	* always enable line clock even if no data
	*/
	.pcr = 0xf0c08080,
	.bpp = 16,
	},
	};

	static const struct imx_fb_platform_data pca100_fb_data __initconst = {
	.mode = pca100_fb_modes,
	.num_modes = ARRAY_SIZE(pca100_fb_modes),

	.pwmr = 0x00A903FF,
	.lscr1 = 0x00120300,
	.dmacr = 0x00020010,
	};

	static void __init pca100_init(void)
	{
	int ret;

	imx27_soc_init();

	ret = mxc_gpio_setup_multiple_pins(pca100_pins,
	ARRAY_SIZE(pca100_pins), "PCA100");
	if (ret)
	printk(KERN_ERR "pca100: Failed to setup pins (%d)\n", ret);

	imx27_add_imx_ssi(0, &pca100_ssi_pdata);

	imx27_add_imx_uart0(&uart_pdata);

	imx27_add_mxc_mmc(1, &sdhc_pdata);

	imx27_add_mxc_nand(&pca100_nand_board_info);

	/* only the i2c master 1 is used on this CPU card */
	i2c_register_board_info(1, pca100_i2c_devices,
	ARRAY_SIZE(pca100_i2c_devices));

	imx27_add_imx_i2c(1, &pca100_i2c1_data);

	mxc_gpio_mode(GPIO_PORTD \| 28 \| GPIO_GPIO \| GPIO_IN);
	mxc_gpio_mode(GPIO_PORTD \| 27 \| GPIO_GPIO \| GPIO_IN);
	spi_register_board_info(pca100_spi_board_info,
	ARRAY_SIZE(pca100_spi_board_info));
	imx27_add_spi_imx0(&pca100_spi0_data);

	gpio_request(OTG_PHY_CS_GPIO, "usb-otg-cs");
	gpio_direction_output(OTG_PHY_CS_GPIO, 1);
	gpio_request(USBH2_PHY_CS_GPIO, "usb-host2-cs");
	gpio_direction_output(USBH2_PHY_CS_GPIO, 1);

	if (otg_mode_host) {
	otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS \|
	ULPI_OTG_DRVVBUS_EXT);

	if (otg_pdata.otg)
	imx27_add_mxc_ehci_otg(&otg_pdata);
	} else {
	gpio_set_value(OTG_PHY_CS_GPIO, 0);
	imx27_add_fsl_usb2_udc(&otg_device_pdata);
	}

	usbh2_pdata.otg = imx_otg_ulpi_create(
	ULPI_OTG_DRVVBUS \| ULPI_OTG_DRVVBUS_EXT);

	if (usbh2_pdata.otg)
	imx27_add_mxc_ehci_hs(2, &usbh2_pdata);

	imx27_add_imx_fb(&pca100_fb_data);

	imx27_add_fec(NULL);
	imx27_add_imx2_wdt();
	imx27_add_mxc_w1();
	}

	static void __init pca100_timer_init(void)
	{
	mx27_clocks_init(26000000);
	}

	MACHINE_START(PCA100, "phyCARD-i.MX27")
	.atag_offset = 0x100,
	.map_io = mx27_map_io,
	.init_early = imx27_init_early,
	.init_irq = mx27_init_irq,
	.handle_irq = imx27_handle_irq,
	.init_machine = pca100_init,
	.init_time = pca100_timer_init,
	.restart = mxc_restart,
	MACHINE_END