arch/arm/mach-imx/mach-pca100.c - maze/linux - Git at Google

 /*
  * 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/i2c/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 <linux/fsl_devices.h>

 #include <asm/mach/arch.h>
 #include <asm/mach-types.h>
 #include <mach/common.h>
 #include <mach/hardware.h>
 #include <mach/iomux-mx27.h>
 #include <asm/mach/time.h>
 #include <mach/audmux.h>
 #include <mach/ssi.h>
 #include <mach/mxc_nand.h>
 #include <mach/irqs.h>
 #include <mach/mmc.h>
 #include <mach/mxc_ehci.h>
 #include <mach/ulpi.h>

 #include "devices-imx27.h"
 #include "devices.h"

 #define OTG_PHY_CS_GPIO (GPIO_PORTB + 23)
 #define USBH2_PHY_CS_GPIO (GPIO_PORTB + 24)

 static int pca100_pins[] = {
 	/* 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,
 	/* 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,
 };

 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 struct platform_device *platform_devices[] __initdata = {
 	&mxc_w1_master_device,
 	&mxc_fec_device,
 	&mxc_wdt,
 };

 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("rtc-pcf8563", 0x51),
 		.type = "pcf8563"
 	}, {
 		I2C_BOARD_INFO("lm75", 0x4a),
 		.type = "lm75"
 	}
 };

 #if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
 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[] = {GPIO_PORTD + 28, GPIO_PORTD + 27};

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

 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 struct imx_ssi_platform_data pca100_ssi_pdata = {
 	.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(IRQ_GPIOC(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(IRQ_GPIOC(29), data);
 }

 static struct imxmmc_platform_data sdhc_pdata = {
 	.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);
 	return 0;
 }

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

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

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

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

 static int otg_mode_host;

 static int __init pca100_otg_mode(char *options)
 {
 	if (!strcmp(options, "host"))
 		otg_mode_host = 1;
 	else if (!strcmp(options, "device"))
 		otg_mode_host = 0;
 	else
 		pr_info("otg_mode neither \"host\" nor \"device\". "
 			"Defaulting to device\n");
 	return 0;
 }
 __setup("otg_mode=", pca100_otg_mode);

 static void __init pca100_init(void)
 {
 	int ret;

 	/* SSI unit */
 	mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
 				  MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */
 				  MXC_AUDMUX_V1_PCR_TFCSEL(3) |
 				  MXC_AUDMUX_V1_PCR_TCLKDIR | /* clock is output */
 				  MXC_AUDMUX_V1_PCR_RXDSEL(3));
 	mxc_audmux_v1_configure_port(3,
 				  MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */
 				  MXC_AUDMUX_V1_PCR_TFCSEL(0) |
 				  MXC_AUDMUX_V1_PCR_TFSDIR |
 				  MXC_AUDMUX_V1_PCR_RXDSEL(0));

 	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);

 	mxc_register_device(&imx_ssi_device0, &pca100_ssi_pdata);

 	imx27_add_imx_uart0(&uart_pdata);

 	mxc_gpio_mode(GPIO_PORTC | 29 | GPIO_GPIO | GPIO_IN);
 	mxc_register_device(&mxc_sdhc_device1, &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_i2c_imx1(&pca100_i2c1_data);

 	mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_OUT);
 	mxc_gpio_mode(GPIO_PORTD | 27 | GPIO_GPIO | GPIO_OUT);

 	/* GPIO0_IRQ */
 	mxc_gpio_mode(GPIO_PORTC | 31 | GPIO_GPIO | GPIO_IN);
 	/* GPIO1_IRQ */
 	mxc_gpio_mode(GPIO_PORTC | 25 | GPIO_GPIO | GPIO_IN);
 	/* GPIO2_IRQ */
 	mxc_gpio_mode(GPIO_PORTE | 5 | GPIO_GPIO | GPIO_IN);

 #if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
 	spi_register_board_info(pca100_spi_board_info,
 				ARRAY_SIZE(pca100_spi_board_info));
 	imx27_add_spi_imx0(&pca100_spi_0_data);
 #endif

 	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 defined(CONFIG_USB_ULPI)
 	if (otg_mode_host) {
 		otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
 				USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);

 		mxc_register_device(&mxc_otg_host, &otg_pdata);
 	}

 	usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
 				USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);

 	mxc_register_device(&mxc_usbh2, &usbh2_pdata);
 #endif
 	if (!otg_mode_host) {
 		gpio_set_value(OTG_PHY_CS_GPIO, 0);
 		mxc_register_device(&mxc_otg_udc_device, &otg_device_pdata);
 	}

 	platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 }

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

 static struct sys_timer pca100_timer = {
 	.init = pca100_timer_init,
 };

 MACHINE_START(PCA100, "phyCARD-i.MX27")
 	.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   = pca100_init,
 	.timer          = &pca100_timer,
 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/i2c/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 <linux/fsl_devices.h>

	#include <asm/mach/arch.h>
	#include <asm/mach-types.h>
	#include <mach/common.h>
	#include <mach/hardware.h>
	#include <mach/iomux-mx27.h>
	#include <asm/mach/time.h>
	#include <mach/audmux.h>
	#include <mach/ssi.h>
	#include <mach/mxc_nand.h>
	#include <mach/irqs.h>
	#include <mach/mmc.h>
	#include <mach/mxc_ehci.h>
	#include <mach/ulpi.h>

	#include "devices-imx27.h"
	#include "devices.h"

	#define OTG_PHY_CS_GPIO (GPIO_PORTB + 23)
	#define USBH2_PHY_CS_GPIO (GPIO_PORTB + 24)

	static int pca100_pins[] = {
	/* 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,
	/* 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,
	};

	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 struct platform_device *platform_devices[] __initdata = {
	&mxc_w1_master_device,
	&mxc_fec_device,
	&mxc_wdt,
	};

	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("rtc-pcf8563", 0x51),
	.type = "pcf8563"
	}, {
	I2C_BOARD_INFO("lm75", 0x4a),
	.type = "lm75"
	}
	};

	#if defined(CONFIG_SPI_IMX) \|\| defined(CONFIG_SPI_IMX_MODULE)
	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[] = {GPIO_PORTD + 28, GPIO_PORTD + 27};

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

	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 struct imx_ssi_platform_data pca100_ssi_pdata = {
	.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(IRQ_GPIOC(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(IRQ_GPIOC(29), data);
	}

	static struct imxmmc_platform_data sdhc_pdata = {
	.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);
	return 0;
	}

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

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

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

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

	static int otg_mode_host;

	static int __init pca100_otg_mode(char *options)
	{
	if (!strcmp(options, "host"))
	otg_mode_host = 1;
	else if (!strcmp(options, "device"))
	otg_mode_host = 0;
	else
	pr_info("otg_mode neither \"host\" nor \"device\". "
	"Defaulting to device\n");
	return 0;
	}
	__setup("otg_mode=", pca100_otg_mode);

	static void __init pca100_init(void)
	{
	int ret;

	/* SSI unit */
	mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
	MXC_AUDMUX_V1_PCR_SYN \| /* 4wire mode */
	MXC_AUDMUX_V1_PCR_TFCSEL(3) \|
	MXC_AUDMUX_V1_PCR_TCLKDIR \| /* clock is output */
	MXC_AUDMUX_V1_PCR_RXDSEL(3));
	mxc_audmux_v1_configure_port(3,
	MXC_AUDMUX_V1_PCR_SYN \| /* 4wire mode */
	MXC_AUDMUX_V1_PCR_TFCSEL(0) \|
	MXC_AUDMUX_V1_PCR_TFSDIR \|
	MXC_AUDMUX_V1_PCR_RXDSEL(0));

	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);

	mxc_register_device(&imx_ssi_device0, &pca100_ssi_pdata);

	imx27_add_imx_uart0(&uart_pdata);

	mxc_gpio_mode(GPIO_PORTC \| 29 \| GPIO_GPIO \| GPIO_IN);
	mxc_register_device(&mxc_sdhc_device1, &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_i2c_imx1(&pca100_i2c1_data);

	mxc_gpio_mode(GPIO_PORTD \| 28 \| GPIO_GPIO \| GPIO_OUT);
	mxc_gpio_mode(GPIO_PORTD \| 27 \| GPIO_GPIO \| GPIO_OUT);

	/* GPIO0_IRQ */
	mxc_gpio_mode(GPIO_PORTC \| 31 \| GPIO_GPIO \| GPIO_IN);
	/* GPIO1_IRQ */
	mxc_gpio_mode(GPIO_PORTC \| 25 \| GPIO_GPIO \| GPIO_IN);
	/* GPIO2_IRQ */
	mxc_gpio_mode(GPIO_PORTE \| 5 \| GPIO_GPIO \| GPIO_IN);

	#if defined(CONFIG_SPI_IMX) \|\| defined(CONFIG_SPI_IMX_MODULE)
	spi_register_board_info(pca100_spi_board_info,
	ARRAY_SIZE(pca100_spi_board_info));
	imx27_add_spi_imx0(&pca100_spi_0_data);
	#endif

	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 defined(CONFIG_USB_ULPI)
	if (otg_mode_host) {
	otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
	USB_OTG_DRV_VBUS \| USB_OTG_DRV_VBUS_EXT);

	mxc_register_device(&mxc_otg_host, &otg_pdata);
	}

	usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
	USB_OTG_DRV_VBUS \| USB_OTG_DRV_VBUS_EXT);

	mxc_register_device(&mxc_usbh2, &usbh2_pdata);
	#endif
	if (!otg_mode_host) {
	gpio_set_value(OTG_PHY_CS_GPIO, 0);
	mxc_register_device(&mxc_otg_udc_device, &otg_device_pdata);
	}

	platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
	}

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

	static struct sys_timer pca100_timer = {
	.init = pca100_timer_init,
	};

	MACHINE_START(PCA100, "phyCARD-i.MX27")
	.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 = pca100_init,
	.timer = &pca100_timer,
	MACHINE_END