[deliverable/linux.git] / arch / arm / mach-mx3 / mx31lite-db.c

/*
 *  LogicPD i.MX31 SOM-LV development board support
 *
 *    Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
 *
 *  based on code for other MX31 boards,
 *
 *    Copyright 2005-2007 Freescale Semiconductor
 *    Copyright (c) 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
 *    Copyright (C) 2009 Valentin Longchamp, EPFL Mobots group
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/init.h>
#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/leds.h>
#include <linux/platform_device.h>

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

#include <mach/hardware.h>
#include <mach/common.h>
#include <mach/imx-uart.h>
#include <mach/iomux-mx3.h>
#include <mach/board-mx31lite.h>
#include <mach/mmc.h>
#include <mach/spi.h>

#include "devices.h"

/*
 * This file contains board-specific initialization routines for the
 * LogicPD i.MX31 SOM-LV development board, aka 'LiteKit'.
 * If you design an own baseboard for the module, use this file as base
 * for support code.
 */

static unsigned int litekit_db_board_pins[] __initdata = {
	/* UART1 */
	MX31_PIN_CTS1__CTS1,
	MX31_PIN_RTS1__RTS1,
	MX31_PIN_TXD1__TXD1,
	MX31_PIN_RXD1__RXD1,
	/* SPI 0 */
	MX31_PIN_CSPI1_SCLK__SCLK,
	MX31_PIN_CSPI1_MOSI__MOSI,
	MX31_PIN_CSPI1_MISO__MISO,
	MX31_PIN_CSPI1_SPI_RDY__SPI_RDY,
	MX31_PIN_CSPI1_SS0__SS0,
	MX31_PIN_CSPI1_SS1__SS1,
	MX31_PIN_CSPI1_SS2__SS2,
};

/* UART */
static struct imxuart_platform_data uart_pdata __initdata = {
	.flags = IMXUART_HAVE_RTSCTS,
};

/* MMC */

static int gpio_det, gpio_wp;

#define MMC_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
			PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)

static int mxc_mmc1_get_ro(struct device *dev)
{
	return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_LCS0));
}

static int mxc_mmc1_init(struct device *dev,
			 irq_handler_t detect_irq, void *data)
{
	int ret;

	gpio_det = IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1);
	gpio_wp = IOMUX_TO_GPIO(MX31_PIN_GPIO1_6);

	mxc_iomux_set_pad(MX31_PIN_SD1_DATA0, MMC_PAD_CFG);
	mxc_iomux_set_pad(MX31_PIN_SD1_DATA1, MMC_PAD_CFG);
	mxc_iomux_set_pad(MX31_PIN_SD1_DATA2, MMC_PAD_CFG);
	mxc_iomux_set_pad(MX31_PIN_SD1_DATA3, MMC_PAD_CFG);
	mxc_iomux_set_pad(MX31_PIN_SD1_CLK, MMC_PAD_CFG);
	mxc_iomux_set_pad(MX31_PIN_SD1_CMD, MMC_PAD_CFG);

	ret = gpio_request(gpio_det, "MMC detect");
	if (ret)
		return ret;

	ret = gpio_request(gpio_wp, "MMC w/p");
	if (ret)
		goto exit_free_det;

	gpio_direction_input(gpio_det);
	gpio_direction_input(gpio_wp);

	ret = request_irq(IOMUX_TO_IRQ(MX31_PIN_DCD_DCE1), detect_irq,
			  IRQF_DISABLED | IRQF_TRIGGER_FALLING,
			  "MMC detect", data);
	if (ret)
		goto exit_free_wp;

	return 0;

exit_free_wp:
	gpio_free(gpio_wp);

exit_free_det:
	gpio_free(gpio_det);

	return ret;
}

static void mxc_mmc1_exit(struct device *dev, void *data)
{
	gpio_free(gpio_det);
	gpio_free(gpio_wp);
	free_irq(IOMUX_TO_IRQ(MX31_PIN_GPIO1_1), data);
}

static struct imxmmc_platform_data mmc_pdata = {
	.get_ro	 = mxc_mmc1_get_ro,
	.init	   = mxc_mmc1_init,
	.exit	   = mxc_mmc1_exit,
};

/* SPI */

static int spi_internal_chipselect[] = {
	MXC_SPI_CS(0),
	MXC_SPI_CS(1),
	MXC_SPI_CS(2),
};

static struct spi_imx_master spi0_pdata = {
	.chipselect	= spi_internal_chipselect,
	.num_chipselect	= ARRAY_SIZE(spi_internal_chipselect),
};

/* GPIO LEDs */

static struct gpio_led litekit_leds[] = {
	{
		.name           = "GPIO0",
		.gpio           = IOMUX_TO_GPIO(MX31_PIN_COMPARE),
		.active_low     = 1,
		.default_state  = LEDS_GPIO_DEFSTATE_OFF,
	},
	{
		.name           = "GPIO1",
		.gpio           = IOMUX_TO_GPIO(MX31_PIN_CAPTURE),
		.active_low     = 1,
		.default_state  = LEDS_GPIO_DEFSTATE_OFF,
	}
};

static struct gpio_led_platform_data litekit_led_platform_data = {
	.leds           = litekit_leds,
	.num_leds       = ARRAY_SIZE(litekit_leds),
};

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

void __init mx31lite_db_init(void)
{
	mxc_iomux_setup_multiple_pins(litekit_db_board_pins,
					ARRAY_SIZE(litekit_db_board_pins),
					"development board pins");
	mxc_register_device(&mxc_uart_device0, &uart_pdata);
	mxc_register_device(&mxcsdhc_device0, &mmc_pdata);
	mxc_register_device(&mxc_spi_device0, &spi0_pdata);
	platform_device_register(&litekit_led_device);
}
Commit	Line	Data
b7d91a62 DM	1	/*
	2	* LogicPD i.MX31 SOM-LV development board support
	3	*
	4	* Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
	5	*
	6	* based on code for other MX31 boards,
	7	*
	8	* Copyright 2005-2007 Freescale Semiconductor
	9	* Copyright (c) 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
	10	* Copyright (C) 2009 Valentin Longchamp, EPFL Mobots group
	11	*
	12	* This program is free software; you can redistribute it and/or modify
	13	* it under the terms of the GNU General Public License as published by
	14	* the Free Software Foundation; either version 2 of the License, or
	15	* (at your option) any later version.
	16	*
	17	* This program is distributed in the hope that it will be useful,
	18	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	20	* GNU General Public License for more details.
	21	*
	22	* You should have received a copy of the GNU General Public License
	23	* along with this program; if not, write to the Free Software
	24	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	25	*/
	26
	27	#include <linux/kernel.h>
	28	#include <linux/types.h>
	29	#include <linux/init.h>
	30	#include <linux/gpio.h>
84677d11	31	#include <linux/platform_device.h>
81057f32 DM	32	#include <linux/leds.h>
81057f32 DM	33	#include <linux/platform_device.h>
b7d91a62 DM	34
	35	#include <asm/mach-types.h>
	36	#include <asm/mach/arch.h>
	37	#include <asm/mach/map.h>
	38
	39	#include <mach/hardware.h>
	40	#include <mach/common.h>
	41	#include <mach/imx-uart.h>
	42	#include <mach/iomux-mx3.h>
	43	#include <mach/board-mx31lite.h>
364cd540	44	#include <mach/mmc.h>
84677d11	45	#include <mach/spi.h>
b7d91a62 DM	46
	47	#include "devices.h"
	48
	49	/*
	50	* This file contains board-specific initialization routines for the
	51	* LogicPD i.MX31 SOM-LV development board, aka 'LiteKit'.
	52	* If you design an own baseboard for the module, use this file as base
	53	* for support code.
	54	*/
	55
	56	static unsigned int litekit_db_board_pins[] __initdata = {
	57	/* UART1 */
	58	MX31_PIN_CTS1__CTS1,
	59	MX31_PIN_RTS1__RTS1,
	60	MX31_PIN_TXD1__TXD1,
	61	MX31_PIN_RXD1__RXD1,
84677d11 DM	62	/* SPI 0 */
	63	MX31_PIN_CSPI1_SCLK__SCLK,
	64	MX31_PIN_CSPI1_MOSI__MOSI,
	65	MX31_PIN_CSPI1_MISO__MISO,
	66	MX31_PIN_CSPI1_SPI_RDY__SPI_RDY,
	67	MX31_PIN_CSPI1_SS0__SS0,
	68	MX31_PIN_CSPI1_SS1__SS1,
	69	MX31_PIN_CSPI1_SS2__SS2,
b7d91a62 DM	70	};
	71
	72	/* UART */
	73	static struct imxuart_platform_data uart_pdata __initdata = {
	74	.flags = IMXUART_HAVE_RTSCTS,
	75	};
	76
364cd540 DM	77	/* MMC */
	78
	79	static int gpio_det, gpio_wp;
	80
	81	#define MMC_PAD_CFG (PAD_CTL_DRV_MAX \| PAD_CTL_SRE_FAST \| PAD_CTL_HYS_CMOS \| \
	82	PAD_CTL_ODE_CMOS \| PAD_CTL_100K_PU)
	83
	84	static int mxc_mmc1_get_ro(struct device *dev)
	85	{
	86	return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_LCS0));
	87	}
	88
	89	static int mxc_mmc1_init(struct device *dev,
	90	irq_handler_t detect_irq, void *data)
	91	{
	92	int ret;
	93
	94	gpio_det = IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1);
	95	gpio_wp = IOMUX_TO_GPIO(MX31_PIN_GPIO1_6);
	96
	97	mxc_iomux_set_pad(MX31_PIN_SD1_DATA0, MMC_PAD_CFG);
	98	mxc_iomux_set_pad(MX31_PIN_SD1_DATA1, MMC_PAD_CFG);
	99	mxc_iomux_set_pad(MX31_PIN_SD1_DATA2, MMC_PAD_CFG);
	100	mxc_iomux_set_pad(MX31_PIN_SD1_DATA3, MMC_PAD_CFG);
	101	mxc_iomux_set_pad(MX31_PIN_SD1_CLK, MMC_PAD_CFG);
	102	mxc_iomux_set_pad(MX31_PIN_SD1_CMD, MMC_PAD_CFG);
	103
	104	ret = gpio_request(gpio_det, "MMC detect");
	105	if (ret)
	106	return ret;
	107
	108	ret = gpio_request(gpio_wp, "MMC w/p");
	109	if (ret)
	110	goto exit_free_det;
	111
	112	gpio_direction_input(gpio_det);
	113	gpio_direction_input(gpio_wp);
	114
	115	ret = request_irq(IOMUX_TO_IRQ(MX31_PIN_DCD_DCE1), detect_irq,
	116	IRQF_DISABLED \| IRQF_TRIGGER_FALLING,
	117	"MMC detect", data);
	118	if (ret)
	119	goto exit_free_wp;
	120
	121	return 0;
	122
	123	exit_free_wp:
	124	gpio_free(gpio_wp);
	125
	126	exit_free_det:
	127	gpio_free(gpio_det);
	128
	129	return ret;
	130	}
	131
	132	static void mxc_mmc1_exit(struct device dev, void data)
	133	{
	134	gpio_free(gpio_det);
	135	gpio_free(gpio_wp);
	136	free_irq(IOMUX_TO_IRQ(MX31_PIN_GPIO1_1), data);
	137	}
	138
	139	static struct imxmmc_platform_data mmc_pdata = {
	140	.get_ro = mxc_mmc1_get_ro,
141	.init = mxc_mmc1_init,
142	.exit = mxc_mmc1_exit,
143	};
144
84677d11 DM	145	/* SPI */
	146
	147	static int spi_internal_chipselect[] = {
	148	MXC_SPI_CS(0),
	149	MXC_SPI_CS(1),
	150	MXC_SPI_CS(2),
	151	};
	152
	153	static struct spi_imx_master spi0_pdata = {
	154	.chipselect = spi_internal_chipselect,
	155	.num_chipselect = ARRAY_SIZE(spi_internal_chipselect),
	156	};
	157
81057f32 DM	158	/* GPIO LEDs */
	159
	160	static struct gpio_led litekit_leds[] = {
	161	{
	162	.name = "GPIO0",
	163	.gpio = IOMUX_TO_GPIO(MX31_PIN_COMPARE),
	164	.active_low = 1,
	165	.default_state = LEDS_GPIO_DEFSTATE_OFF,
	166	},
	167	{
	168	.name = "GPIO1",
	169	.gpio = IOMUX_TO_GPIO(MX31_PIN_CAPTURE),
	170	.active_low = 1,
	171	.default_state = LEDS_GPIO_DEFSTATE_OFF,
	172	}
	173	};
	174
	175	static struct gpio_led_platform_data litekit_led_platform_data = {
	176	.leds = litekit_leds,
	177	.num_leds = ARRAY_SIZE(litekit_leds),
	178	};
	179
	180	static struct platform_device litekit_led_device = {
	181	.name = "leds-gpio",
	182	.id = -1,
	183	.dev = {
	184	.platform_data = &litekit_led_platform_data,
	185	},
	186	};
	187
b7d91a62 DM	188	void __init mx31lite_db_init(void)
	189	{
	190	mxc_iomux_setup_multiple_pins(litekit_db_board_pins,
	191	ARRAY_SIZE(litekit_db_board_pins),
	192	"development board pins");
	193	mxc_register_device(&mxc_uart_device0, &uart_pdata);
364cd540	194	mxc_register_device(&mxcsdhc_device0, &mmc_pdata);
84677d11	195	mxc_register_device(&mxc_spi_device0, &spi0_pdata);
81057f32	196	platform_device_register(&litekit_led_device);
b7d91a62 DM	197	}
b7d91a62 DM	198