[deliverable/linux.git] / arch / arm / mach-mx3 / mx31moboard.c

/*
 *  Copyright (C) 2008 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/delay.h>
#include <linux/fsl_devices.h>
#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/memory.h>
#include <linux/mtd/physmap.h>
#include <linux/mtd/partitions.h>
#include <linux/platform_device.h>
#include <linux/types.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/mach/map.h>
#include <mach/board-mx31moboard.h>
#include <mach/common.h>
#include <mach/hardware.h>
#include <mach/imx-uart.h>
#include <mach/iomux-mx3.h>
#include <mach/i2c.h>
#include <mach/mmc.h>
#include <mach/mx31.h>

#include "devices.h"

static unsigned int moboard_pins[] = {
	/* UART0 */
	MX31_PIN_CTS1__CTS1, MX31_PIN_RTS1__RTS1,
	MX31_PIN_TXD1__TXD1, MX31_PIN_RXD1__RXD1,
	/* UART4 */
	MX31_PIN_PC_RST__CTS5, MX31_PIN_PC_VS2__RTS5,
	MX31_PIN_PC_BVD2__TXD5, MX31_PIN_PC_BVD1__RXD5,
	/* I2C0 */
	MX31_PIN_I2C_DAT__I2C1_SDA, MX31_PIN_I2C_CLK__I2C1_SCL,
	/* I2C1 */
	MX31_PIN_DCD_DTE1__I2C2_SDA, MX31_PIN_RI_DTE1__I2C2_SCL,
	/* SDHC1 */
	MX31_PIN_SD1_DATA3__SD1_DATA3, MX31_PIN_SD1_DATA2__SD1_DATA2,
	MX31_PIN_SD1_DATA1__SD1_DATA1, MX31_PIN_SD1_DATA0__SD1_DATA0,
	MX31_PIN_SD1_CLK__SD1_CLK, MX31_PIN_SD1_CMD__SD1_CMD,
	MX31_PIN_ATA_CS0__GPIO3_26, MX31_PIN_ATA_CS1__GPIO3_27,
	/* USB reset */
	MX31_PIN_GPIO1_0__GPIO1_0,
	/* USB OTG */
	MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,
	MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,
	MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
	MX31_PIN_USBOTG_DATA3__USBOTG_DATA3,
	MX31_PIN_USBOTG_DATA4__USBOTG_DATA4,
	MX31_PIN_USBOTG_DATA5__USBOTG_DATA5,
	MX31_PIN_USBOTG_DATA6__USBOTG_DATA6,
	MX31_PIN_USBOTG_DATA7__USBOTG_DATA7,
	MX31_PIN_USBOTG_CLK__USBOTG_CLK, MX31_PIN_USBOTG_DIR__USBOTG_DIR,
	MX31_PIN_USBOTG_NXT__USBOTG_NXT, MX31_PIN_USBOTG_STP__USBOTG_STP,
	MX31_PIN_USB_OC__GPIO1_30,
};

static struct physmap_flash_data mx31moboard_flash_data = {
	.width  	= 2,
};

static struct resource mx31moboard_flash_resource = {
	.start	= 0xa0000000,
	.end	= 0xa1ffffff,
	.flags	= IORESOURCE_MEM,
};

static struct platform_device mx31moboard_flash = {
	.name	= "physmap-flash",
	.id	= 0,
	.dev	= {
		.platform_data  = &mx31moboard_flash_data,
	},
	.resource = &mx31moboard_flash_resource,
	.num_resources = 1,
};

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

static struct imxi2c_platform_data moboard_i2c0_pdata = {
	.bitrate = 400000,
};

static struct imxi2c_platform_data moboard_i2c1_pdata = {
	.bitrate = 100000,
};

#define SDHC1_CD IOMUX_TO_GPIO(MX31_PIN_ATA_CS0)
#define SDHC1_WP IOMUX_TO_GPIO(MX31_PIN_ATA_CS1)

static int moboard_sdhc1_get_ro(struct device *dev)
{
	return gpio_get_value(SDHC1_WP);
}

static int moboard_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
		void *data)
{
	int ret;

	ret = gpio_request(SDHC1_CD, "sdhc-detect");
	if (ret)
		return ret;

	gpio_direction_input(SDHC1_CD);

	ret = gpio_request(SDHC1_WP, "sdhc-wp");
	if (ret)
		goto err_gpio_free;
	gpio_direction_input(SDHC1_WP);

	ret = request_irq(gpio_to_irq(SDHC1_CD), detect_irq,
		IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
		"sdhc1-card-detect", data);
	if (ret)
		goto err_gpio_free_2;

	return 0;

err_gpio_free_2:
	gpio_free(SDHC1_WP);
err_gpio_free:
	gpio_free(SDHC1_CD);

	return ret;
}

static void moboard_sdhc1_exit(struct device *dev, void *data)
{
	free_irq(gpio_to_irq(SDHC1_CD), data);
	gpio_free(SDHC1_WP);
	gpio_free(SDHC1_CD);
}

static struct imxmmc_platform_data sdhc1_pdata = {
	.get_ro	= moboard_sdhc1_get_ro,
	.init	= moboard_sdhc1_init,
	.exit	= moboard_sdhc1_exit,
};

/*
 * this pin is dedicated for all mx31moboard systems, so we do it here
 */
#define USB_RESET_B	IOMUX_TO_GPIO(MX31_PIN_GPIO1_0)

static void usb_xcvr_reset(void)
{
	gpio_request(USB_RESET_B, "usb-reset");
	gpio_direction_output(USB_RESET_B, 0);
	mdelay(1);
	gpio_set_value(USB_RESET_B, 1);
}

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

#define OTG_EN_B IOMUX_TO_GPIO(MX31_PIN_USB_OC)

static void moboard_usbotg_init(void)
{
	mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG);
	mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG);
	mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG);
	mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG);
	mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG);
	mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG);
	mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG);
	mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG);
	mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG);
	mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG);
	mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG);
	mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG);

	gpio_request(OTG_EN_B, "usb-udc-en");
	gpio_direction_output(OTG_EN_B, 0);
}

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

static struct platform_device *devices[] __initdata = {
	&mx31moboard_flash,
};

static int mx31moboard_baseboard;
core_param(mx31moboard_baseboard, mx31moboard_baseboard, int, 0444);

/*
 * Board specific initialization.
 */
static void __init mxc_board_init(void)
{
	mxc_iomux_setup_multiple_pins(moboard_pins, ARRAY_SIZE(moboard_pins),
		"moboard");

	platform_add_devices(devices, ARRAY_SIZE(devices));

	mxc_register_device(&mxc_uart_device0, &uart_pdata);
	mxc_register_device(&mxc_uart_device4, &uart_pdata);

	mxc_register_device(&mxc_i2c_device0, &moboard_i2c0_pdata);
	mxc_register_device(&mxc_i2c_device1, &moboard_i2c1_pdata);

	mxc_register_device(&mxcsdhc_device0, &sdhc1_pdata);

	usb_xcvr_reset();

	moboard_usbotg_init();
	mxc_register_device(&mxc_otg_udc_device, &usb_pdata);

	switch (mx31moboard_baseboard) {
	case MX31NOBOARD:
		break;
	case MX31DEVBOARD:
		mx31moboard_devboard_init();
		break;
	case MX31MARXBOT:
		mx31moboard_marxbot_init();
		break;
	default:
		printk(KERN_ERR "Illegal mx31moboard_baseboard type %d\n",
			mx31moboard_baseboard);
	}
}

static void __init mx31moboard_timer_init(void)
{
	mx31_clocks_init(26000000);
}

struct sys_timer mx31moboard_timer = {
	.init	= mx31moboard_timer_init,
};

MACHINE_START(MX31MOBOARD, "EPFL Mobots mx31moboard")
	/* Maintainer: Valentin Longchamp, EPFL Mobots group */
	.phys_io	= AIPS1_BASE_ADDR,
	.io_pg_offst	= ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
	.boot_params    = PHYS_OFFSET + 0x100,
	.map_io         = mx31_map_io,
	.init_irq       = mx31_init_irq,
	.init_machine   = mxc_board_init,
	.timer          = &mx31moboard_timer,
MACHINE_END
Commit	Line	Data
988d2d49 VL	1	/*
	2	* Copyright (C) 2008 Valentin Longchamp, EPFL Mobots group
	3	*
	4	* This program is free software; you can redistribute it and/or modify
	5	* it under the terms of the GNU General Public License as published by
	6	* the Free Software Foundation; either version 2 of the License, or
	7	* (at your option) any later version.
	8	*
	9	* This program is distributed in the hope that it will be useful,
	10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	* GNU General Public License for more details.
	13	*
	14	* You should have received a copy of the GNU General Public License
	15	* along with this program; if not, write to the Free Software
	16	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	17	*/
	18
b23f1534	19	#include <linux/delay.h>
88b05647	20	#include <linux/fsl_devices.h>
45b131a7	21	#include <linux/gpio.h>
988d2d49	22	#include <linux/init.h>
45b131a7	23	#include <linux/interrupt.h>
220bbcea	24	#include <linux/memory.h>
988d2d49 VL	25	#include <linux/mtd/physmap.h>
988d2d49 VL	26	#include <linux/mtd/partitions.h>
220bbcea VL	27	#include <linux/platform_device.h>
220bbcea VL	28	#include <linux/types.h>
988d2d49	29
988d2d49 VL	30	#include <asm/mach-types.h>
	31	#include <asm/mach/arch.h>
	32	#include <asm/mach/time.h>
	33	#include <asm/mach/map.h>
220bbcea	34	#include <mach/board-mx31moboard.h>
988d2d49	35	#include <mach/common.h>
220bbcea	36	#include <mach/hardware.h>
988d2d49 VL	37	#include <mach/imx-uart.h>
988d2d49 VL	38	#include <mach/iomux-mx3.h>
4ec6ecc7	39	#include <mach/i2c.h>
45b131a7	40	#include <mach/mmc.h>
c5aa0ad0	41	#include <mach/mx31.h>
988d2d49 VL	42
	43	#include "devices.h"
	44
220bbcea VL	45	static unsigned int moboard_pins[] = {
	46	/* UART0 */
	47	MX31_PIN_CTS1__CTS1, MX31_PIN_RTS1__RTS1,
	48	MX31_PIN_TXD1__TXD1, MX31_PIN_RXD1__RXD1,
	49	/* UART4 */
	50	MX31_PIN_PC_RST__CTS5, MX31_PIN_PC_VS2__RTS5,
	51	MX31_PIN_PC_BVD2__TXD5, MX31_PIN_PC_BVD1__RXD5,
56c7a45b VL	52	/* I2C0 */
	53	MX31_PIN_I2C_DAT__I2C1_SDA, MX31_PIN_I2C_CLK__I2C1_SCL,
	54	/* I2C1 */
	55	MX31_PIN_DCD_DTE1__I2C2_SDA, MX31_PIN_RI_DTE1__I2C2_SCL,
	56	/* SDHC1 */
	57	MX31_PIN_SD1_DATA3__SD1_DATA3, MX31_PIN_SD1_DATA2__SD1_DATA2,
	58	MX31_PIN_SD1_DATA1__SD1_DATA1, MX31_PIN_SD1_DATA0__SD1_DATA0,
	59	MX31_PIN_SD1_CLK__SD1_CLK, MX31_PIN_SD1_CMD__SD1_CMD,
	60	MX31_PIN_ATA_CS0__GPIO3_26, MX31_PIN_ATA_CS1__GPIO3_27,
b23f1534 VL	61	/* USB reset */
b23f1534 VL	62	MX31_PIN_GPIO1_0__GPIO1_0,
88b05647 VL	63	/* USB OTG */
	64	MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,
	65	MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,
	66	MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
	67	MX31_PIN_USBOTG_DATA3__USBOTG_DATA3,
	68	MX31_PIN_USBOTG_DATA4__USBOTG_DATA4,
	69	MX31_PIN_USBOTG_DATA5__USBOTG_DATA5,
	70	MX31_PIN_USBOTG_DATA6__USBOTG_DATA6,
	71	MX31_PIN_USBOTG_DATA7__USBOTG_DATA7,
	72	MX31_PIN_USBOTG_CLK__USBOTG_CLK, MX31_PIN_USBOTG_DIR__USBOTG_DIR,
	73	MX31_PIN_USBOTG_NXT__USBOTG_NXT, MX31_PIN_USBOTG_STP__USBOTG_STP,
	74	MX31_PIN_USB_OC__GPIO1_30,
220bbcea VL	75	};
220bbcea VL	76
988d2d49 VL	77	static struct physmap_flash_data mx31moboard_flash_data = {
	78	.width = 2,
	79	};
	80
	81	static struct resource mx31moboard_flash_resource = {
	82	.start = 0xa0000000,
	83	.end = 0xa1ffffff,
	84	.flags = IORESOURCE_MEM,
	85	};
	86
	87	static struct platform_device mx31moboard_flash = {
	88	.name = "physmap-flash",
	89	.id = 0,
	90	.dev = {
	91	.platform_data = &mx31moboard_flash_data,
	92	},
	93	.resource = &mx31moboard_flash_resource,
	94	.num_resources = 1,
	95	};
	96
	97	static struct imxuart_platform_data uart_pdata = {
	98	.flags = IMXUART_HAVE_RTSCTS,
	99	};
	100
4ec6ecc7 VL	101	static struct imxi2c_platform_data moboard_i2c0_pdata = {
	102	.bitrate = 400000,
	103	};
	104
	105	static struct imxi2c_platform_data moboard_i2c1_pdata = {
	106	.bitrate = 100000,
	107	};
	108
45b131a7 VL	109	#define SDHC1_CD IOMUX_TO_GPIO(MX31_PIN_ATA_CS0)
	110	#define SDHC1_WP IOMUX_TO_GPIO(MX31_PIN_ATA_CS1)
	111
	112	static int moboard_sdhc1_get_ro(struct device *dev)
	113	{
	114	return gpio_get_value(SDHC1_WP);
	115	}
	116
	117	static int moboard_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
	118	void *data)
	119	{
4f163eb8 SH	120	int ret;
	121
	122	ret = gpio_request(SDHC1_CD, "sdhc-detect");
	123	if (ret)
	124	return ret;
	125
	126	gpio_direction_input(SDHC1_CD);
	127
	128	ret = gpio_request(SDHC1_WP, "sdhc-wp");
	129	if (ret)
	130	goto err_gpio_free;
	131	gpio_direction_input(SDHC1_WP);
	132
	133	ret = request_irq(gpio_to_irq(SDHC1_CD), detect_irq,
45b131a7 VL	134	IRQF_TRIGGER_RISING \| IRQF_TRIGGER_FALLING,
45b131a7 VL	135	"sdhc1-card-detect", data);
4f163eb8 SH	136	if (ret)
	137	goto err_gpio_free_2;
	138
	139	return 0;
	140
	141	err_gpio_free_2:
	142	gpio_free(SDHC1_WP);
	143	err_gpio_free:
	144	gpio_free(SDHC1_CD);
	145
	146	return ret;
45b131a7 VL	147	}
	148
	149	static void moboard_sdhc1_exit(struct device dev, void data)
	150	{
	151	free_irq(gpio_to_irq(SDHC1_CD), data);
4f163eb8 SH	152	gpio_free(SDHC1_WP);
4f163eb8 SH	153	gpio_free(SDHC1_CD);
45b131a7 VL	154	}
	155
	156	static struct imxmmc_platform_data sdhc1_pdata = {
	157	.get_ro = moboard_sdhc1_get_ro,
	158	.init = moboard_sdhc1_init,
	159	.exit = moboard_sdhc1_exit,
	160	};
	161
b23f1534 VL	162	/*
	163	* this pin is dedicated for all mx31moboard systems, so we do it here
	164	*/
	165	#define USB_RESET_B IOMUX_TO_GPIO(MX31_PIN_GPIO1_0)
	166
	167	static void usb_xcvr_reset(void)
	168	{
	169	gpio_request(USB_RESET_B, "usb-reset");
	170	gpio_direction_output(USB_RESET_B, 0);
	171	mdelay(1);
	172	gpio_set_value(USB_RESET_B, 1);
	173	}
	174
88b05647 VL	175	#define USB_PAD_CFG (PAD_CTL_DRV_MAX \| PAD_CTL_SRE_FAST \| PAD_CTL_HYS_CMOS \| \
	176	PAD_CTL_ODE_CMOS \| PAD_CTL_100K_PU)
	177
	178	#define OTG_EN_B IOMUX_TO_GPIO(MX31_PIN_USB_OC)
	179
	180	static void moboard_usbotg_init(void)
	181	{
	182	mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG);
	183	mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG);
	184	mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG);
	185	mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG);
	186	mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG);
	187	mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG);
	188	mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG);
	189	mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG);
	190	mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG);
	191	mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG);
	192	mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG);
	193	mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG);
	194
	195	gpio_request(OTG_EN_B, "usb-udc-en");
	196	gpio_direction_output(OTG_EN_B, 0);
	197	}
	198
	199	static struct fsl_usb2_platform_data usb_pdata = {
	200	.operating_mode = FSL_USB2_DR_DEVICE,
	201	.phy_mode = FSL_USB2_PHY_ULPI,
	202	};
	203
988d2d49 VL	204	static struct platform_device *devices[] __initdata = {
	205	&mx31moboard_flash,
	206	};
	207
e00f0b4a VL	208	static int mx31moboard_baseboard;
	209	core_param(mx31moboard_baseboard, mx31moboard_baseboard, int, 0444);
	210
988d2d49 VL	211	/*
	212	* Board specific initialization.
	213	*/
	214	static void __init mxc_board_init(void)
	215	{
220bbcea VL	216	mxc_iomux_setup_multiple_pins(moboard_pins, ARRAY_SIZE(moboard_pins),
	217	"moboard");
	218
988d2d49 VL	219	platform_add_devices(devices, ARRAY_SIZE(devices));
988d2d49 VL	220
988d2d49	221	mxc_register_device(&mxc_uart_device0, &uart_pdata);
988d2d49	222	mxc_register_device(&mxc_uart_device4, &uart_pdata);
e00f0b4a	223
4ec6ecc7 VL	224	mxc_register_device(&mxc_i2c_device0, &moboard_i2c0_pdata);
	225	mxc_register_device(&mxc_i2c_device1, &moboard_i2c1_pdata);
	226
45b131a7 VL	227	mxc_register_device(&mxcsdhc_device0, &sdhc1_pdata);
45b131a7 VL	228
b23f1534 VL	229	usb_xcvr_reset();
b23f1534 VL	230
88b05647 VL	231	moboard_usbotg_init();
	232	mxc_register_device(&mxc_otg_udc_device, &usb_pdata);
	233
e00f0b4a VL	234	switch (mx31moboard_baseboard) {
	235	case MX31NOBOARD:
	236	break;
	237	case MX31DEVBOARD:
	238	mx31moboard_devboard_init();
	239	break;
	240	case MX31MARXBOT:
	241	mx31moboard_marxbot_init();
	242	break;
	243	default:
220bbcea VL	244	printk(KERN_ERR "Illegal mx31moboard_baseboard type %d\n",
220bbcea VL	245	mx31moboard_baseboard);
e00f0b4a	246	}
988d2d49 VL	247	}
988d2d49 VL	248
988d2d49 VL	249	static void __init mx31moboard_timer_init(void)
988d2d49 VL	250	{
30c730f8	251	mx31_clocks_init(26000000);
988d2d49 VL	252	}
	253
	254	struct sys_timer mx31moboard_timer = {
	255	.init = mx31moboard_timer_init,
	256	};
	257
	258	MACHINE_START(MX31MOBOARD, "EPFL Mobots mx31moboard")
	259	/* Maintainer: Valentin Longchamp, EPFL Mobots group */
	260	.phys_io = AIPS1_BASE_ADDR,
	261	.io_pg_offst = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
	262	.boot_params = PHYS_OFFSET + 0x100,
cd4a05f9	263	.map_io = mx31_map_io,
c5aa0ad0	264	.init_irq = mx31_init_irq,
988d2d49 VL	265	.init_machine = mxc_board_init,
	266	.timer = &mx31moboard_timer,
	267	MACHINE_END
	268