arch/arm/mach-imx/mach-imx27_visstrim_m10.c - nest-learning-thermostat/5.6.1/linux - Git at Google

 /*
  * 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 const int visstrim_m10_pins[] __initconst = {
 	/* 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,
 };

 /* 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_imx_i2c(0, &visstrim_m10_i2c_data);
 	imx27_add_imx_i2c(1, &visstrim_m10_i2c_data);
 	mxc_register_device(&mxc_sdhc_device0, &visstrim_m10_sdhc_pdata);
 	mxc_register_device(&mxc_otg_host, &visstrim_m10_usbotg_pdata);
 	imx27_add_fec(NULL);
 	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")
 	.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
	/*
	* 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 const int visstrim_m10_pins[] __initconst = {
	/* 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,
	};

	/* 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_imx_i2c(0, &visstrim_m10_i2c_data);
	imx27_add_imx_i2c(1, &visstrim_m10_i2c_data);
	mxc_register_device(&mxc_sdhc_device0, &visstrim_m10_sdhc_pdata);
	mxc_register_device(&mxc_otg_host, &visstrim_m10_usbotg_pdata);
	imx27_add_fec(NULL);
	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")
	.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