[linux-2.6-block.git] / arch / arm / mach-imx / mx31moboard-smartbot.c

/*
 * 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.
 */

#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/types.h>

#include <linux/usb/otg.h>
#include <linux/usb/ulpi.h>

#include <media/soc_camera.h>

#include "board-mx31moboard.h"
#include "common.h"
#include "devices-imx31.h"
#include "ehci.h"
#include "hardware.h"
#include "iomux-mx3.h"
#include "ulpi.h"

static unsigned int smartbot_pins[] = {
	/* UART1 */
	MX31_PIN_CTS2__CTS2, MX31_PIN_RTS2__RTS2,
	MX31_PIN_TXD2__TXD2, MX31_PIN_RXD2__RXD2,
	/* CSI */
	MX31_PIN_CSI_D4__CSI_D4, MX31_PIN_CSI_D5__CSI_D5,
	MX31_PIN_CSI_D6__CSI_D6, MX31_PIN_CSI_D7__CSI_D7,
	MX31_PIN_CSI_D8__CSI_D8, MX31_PIN_CSI_D9__CSI_D9,
	MX31_PIN_CSI_D10__CSI_D10, MX31_PIN_CSI_D11__CSI_D11,
	MX31_PIN_CSI_D12__CSI_D12, MX31_PIN_CSI_D13__CSI_D13,
	MX31_PIN_CSI_D14__CSI_D14, MX31_PIN_CSI_D15__CSI_D15,
	MX31_PIN_CSI_HSYNC__CSI_HSYNC, MX31_PIN_CSI_MCLK__CSI_MCLK,
	MX31_PIN_CSI_PIXCLK__CSI_PIXCLK, MX31_PIN_CSI_VSYNC__CSI_VSYNC,
	MX31_PIN_GPIO3_0__GPIO3_0, MX31_PIN_GPIO3_1__GPIO3_1,
	/* ENABLES */
	MX31_PIN_DTR_DCE1__GPIO2_8, MX31_PIN_DSR_DCE1__GPIO2_9,
	MX31_PIN_RI_DCE1__GPIO2_10, MX31_PIN_DCD_DCE1__GPIO2_11,
};

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

#define CAM_POWER	IOMUX_TO_GPIO(MX31_PIN_GPIO3_1)
#define CAM_RST_B	IOMUX_TO_GPIO(MX31_PIN_GPIO3_0)

static int smartbot_cam_power(struct device *dev, int on)
{
	gpio_set_value(CAM_POWER, !on);
	return 0;
}

static int smartbot_cam_reset(struct device *dev)
{
	gpio_set_value(CAM_RST_B, 0);
	udelay(100);
	gpio_set_value(CAM_RST_B, 1);
	return 0;
}

static struct i2c_board_info smartbot_i2c_devices[] = {
	{
		I2C_BOARD_INFO("mt9t031", 0x5d),
	},
};

static struct soc_camera_link base_iclink = {
	.bus_id		= 0,		/* Must match with the camera ID */
	.power		= smartbot_cam_power,
	.reset		= smartbot_cam_reset,
	.board_info	= &smartbot_i2c_devices[0],
	.i2c_adapter_id	= 0,
};

static struct platform_device smartbot_camera[] = {
	{
		.name	= "soc-camera-pdrv",
		.id	= 0,
		.dev	= {
			.platform_data = &base_iclink,
		},
	},
};

static struct platform_device *smartbot_cameras[] __initdata = {
	&smartbot_camera[0],
};

static int __init smartbot_cam_init(void)
{
	int ret = gpio_request(CAM_RST_B, "cam-reset");
	if (ret)
		return ret;
	gpio_direction_output(CAM_RST_B, 1);
	ret = gpio_request(CAM_POWER, "cam-standby");
	if (ret)
		return ret;
	gpio_direction_output(CAM_POWER, 0);

	return 0;
}

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

#if defined(CONFIG_USB_ULPI)

static int smartbot_otg_init(struct platform_device *pdev)
{
	return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
}

static struct mxc_usbh_platform_data otg_host_pdata __initdata = {
	.init	= smartbot_otg_init,
	.portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
};

static int __init smartbot_otg_host_init(void)
{
	struct platform_device *pdev;

	otg_host_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
		ULPI_OTG_DRVVBUS_EXT);
	if (!otg_host_pdata.otg)
		return -ENODEV;

	pdev = imx31_add_mxc_ehci_otg(&otg_host_pdata);

	return PTR_ERR_OR_ZERO(pdev);
}
#else
static inline int smartbot_otg_host_init(void) { return 0; }
#endif

#define POWER_EN IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1)
#define DSPIC_RST_B IOMUX_TO_GPIO(MX31_PIN_DSR_DCE1)
#define TRSLAT_RST_B IOMUX_TO_GPIO(MX31_PIN_RI_DCE1)
#define TRSLAT_SRC_CHOICE IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1)

static void smartbot_resets_init(void)
{
	if (!gpio_request(POWER_EN, "power-enable")) {
		gpio_direction_output(POWER_EN, 0);
		gpio_export(POWER_EN, false);
	}

	if (!gpio_request(DSPIC_RST_B, "dspic-rst")) {
		gpio_direction_output(DSPIC_RST_B, 0);
		gpio_export(DSPIC_RST_B, false);
	}

	if (!gpio_request(TRSLAT_RST_B, "translator-rst")) {
		gpio_direction_output(TRSLAT_RST_B, 0);
		gpio_export(TRSLAT_RST_B, false);
	}

	if (!gpio_request(TRSLAT_SRC_CHOICE, "translator-src-choice")) {
		gpio_direction_output(TRSLAT_SRC_CHOICE, 0);
		gpio_export(TRSLAT_SRC_CHOICE, false);
	}
}
/*
 * system init for baseboard usage. Will be called by mx31moboard init.
 */
void __init mx31moboard_smartbot_init(int board)
{
	printk(KERN_INFO "Initializing mx31smartbot peripherals\n");

	mxc_iomux_setup_multiple_pins(smartbot_pins, ARRAY_SIZE(smartbot_pins),
		"smartbot");

	imx31_add_imx_uart1(&uart_pdata);

	switch (board) {
	case MX31SMARTBOT:
		imx31_add_fsl_usb2_udc(&usb_pdata);
		break;
	case MX31EYEBOT:
		smartbot_otg_host_init();
		break;
	default:
		printk(KERN_WARNING "Unknown board %d, USB OTG not initialized",
			board);
	}

	smartbot_resets_init();

	smartbot_cam_init();
	platform_add_devices(smartbot_cameras, ARRAY_SIZE(smartbot_cameras));
}
Commit	Line	Data
e335c75c VL	1	/*
	2	* Copyright (C) 2009 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.
e335c75c VL	13	*/
	14
	15	#include <linux/delay.h>
	16	#include <linux/gpio.h>
	17	#include <linux/init.h>
	18	#include <linux/interrupt.h>
	19	#include <linux/i2c.h>
	20	#include <linux/platform_device.h>
	21	#include <linux/types.h>
	22
3a47b1a4 PR	23	#include <linux/usb/otg.h>
	24	#include <linux/usb/ulpi.h>
	25
e335c75c VL	26	#include <media/soc_camera.h>
e335c75c VL	27
3ed0bcb4	28	#include "board-mx31moboard.h"
e3372474	29	#include "common.h"
16cf5c41	30	#include "devices-imx31.h"
641dfe8b	31	#include "ehci.h"
50f2de61	32	#include "hardware.h"
267dd34c	33	#include "iomux-mx3.h"
39ef6340	34	#include "ulpi.h"
e335c75c VL	35
	36	static unsigned int smartbot_pins[] = {
	37	/* UART1 */
	38	MX31_PIN_CTS2__CTS2, MX31_PIN_RTS2__RTS2,
	39	MX31_PIN_TXD2__TXD2, MX31_PIN_RXD2__RXD2,
	40	/* CSI */
	41	MX31_PIN_CSI_D4__CSI_D4, MX31_PIN_CSI_D5__CSI_D5,
	42	MX31_PIN_CSI_D6__CSI_D6, MX31_PIN_CSI_D7__CSI_D7,
	43	MX31_PIN_CSI_D8__CSI_D8, MX31_PIN_CSI_D9__CSI_D9,
	44	MX31_PIN_CSI_D10__CSI_D10, MX31_PIN_CSI_D11__CSI_D11,
	45	MX31_PIN_CSI_D12__CSI_D12, MX31_PIN_CSI_D13__CSI_D13,
	46	MX31_PIN_CSI_D14__CSI_D14, MX31_PIN_CSI_D15__CSI_D15,
	47	MX31_PIN_CSI_HSYNC__CSI_HSYNC, MX31_PIN_CSI_MCLK__CSI_MCLK,
	48	MX31_PIN_CSI_PIXCLK__CSI_PIXCLK, MX31_PIN_CSI_VSYNC__CSI_VSYNC,
	49	MX31_PIN_GPIO3_0__GPIO3_0, MX31_PIN_GPIO3_1__GPIO3_1,
	50	/* ENABLES */
	51	MX31_PIN_DTR_DCE1__GPIO2_8, MX31_PIN_DSR_DCE1__GPIO2_9,
	52	MX31_PIN_RI_DCE1__GPIO2_10, MX31_PIN_DCD_DCE1__GPIO2_11,
	53	};
	54
16cf5c41	55	static const struct imxuart_platform_data uart_pdata __initconst = {
e335c75c VL	56	.flags = IMXUART_HAVE_RTSCTS,
	57	};
	58
	59	#define CAM_POWER IOMUX_TO_GPIO(MX31_PIN_GPIO3_1)
	60	#define CAM_RST_B IOMUX_TO_GPIO(MX31_PIN_GPIO3_0)
	61
	62	static int smartbot_cam_power(struct device *dev, int on)
	63	{
	64	gpio_set_value(CAM_POWER, !on);
	65	return 0;
	66	}
	67
	68	static int smartbot_cam_reset(struct device *dev)
	69	{
	70	gpio_set_value(CAM_RST_B, 0);
	71	udelay(100);
	72	gpio_set_value(CAM_RST_B, 1);
	73	return 0;
	74	}
	75
	76	static struct i2c_board_info smartbot_i2c_devices[] = {
	77	{
	78	I2C_BOARD_INFO("mt9t031", 0x5d),
	79	},
	80	};
	81
	82	static struct soc_camera_link base_iclink = {
	83	.bus_id = 0, /* Must match with the camera ID */
	84	.power = smartbot_cam_power,
	85	.reset = smartbot_cam_reset,
	86	.board_info = &smartbot_i2c_devices[0],
	87	.i2c_adapter_id = 0,
e335c75c VL	88	};
	89
	90	static struct platform_device smartbot_camera[] = {
	91	{
	92	.name = "soc-camera-pdrv",
	93	.id = 0,
	94	.dev = {
	95	.platform_data = &base_iclink,
	96	},
	97	},
	98	};
	99
	100	static struct platform_device *smartbot_cameras[] __initdata = {
	101	&smartbot_camera[0],
	102	};
	103
	104	static int __init smartbot_cam_init(void)
	105	{
	106	int ret = gpio_request(CAM_RST_B, "cam-reset");
	107	if (ret)
	108	return ret;
	109	gpio_direction_output(CAM_RST_B, 1);
	110	ret = gpio_request(CAM_POWER, "cam-standby");
	111	if (ret)
	112	return ret;
	113	gpio_direction_output(CAM_POWER, 0);
	114
	115	return 0;
	116	}
	117
9e1dde33	118	static const struct fsl_usb2_platform_data usb_pdata __initconst = {
66c202ad PR	119	.operating_mode = FSL_USB2_DR_DEVICE,
	120	.phy_mode = FSL_USB2_PHY_ULPI,
	121	};
	122
3a47b1a4 PR	123	#if defined(CONFIG_USB_ULPI)
3a47b1a4 PR	124
4bd597b6 SH	125	static int smartbot_otg_init(struct platform_device *pdev)
	126	{
	127	return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
	128	}
	129
2d58de28	130	static struct mxc_usbh_platform_data otg_host_pdata __initdata = {
4bd597b6	131	.init = smartbot_otg_init,
3a47b1a4	132	.portsc = MXC_EHCI_MODE_ULPI \| MXC_EHCI_UTMI_8BIT,
3a47b1a4 PR	133	};
	134
	135	static int __init smartbot_otg_host_init(void)
	136	{
2d58de28 UKK	137	struct platform_device *pdev;
2d58de28 UKK	138
48f6b099 SH	139	otg_host_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS \|
	140	ULPI_OTG_DRVVBUS_EXT);
	141	if (!otg_host_pdata.otg)
	142	return -ENODEV;
3a47b1a4	143
2d58de28	144	pdev = imx31_add_mxc_ehci_otg(&otg_host_pdata);
2d58de28	145
d3a22442	146	return PTR_ERR_OR_ZERO(pdev);
3a47b1a4 PR	147	}
	148	#else
	149	static inline int smartbot_otg_host_init(void) { return 0; }
	150	#endif
	151
e335c75c VL	152	#define POWER_EN IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1)
	153	#define DSPIC_RST_B IOMUX_TO_GPIO(MX31_PIN_DSR_DCE1)
	154	#define TRSLAT_RST_B IOMUX_TO_GPIO(MX31_PIN_RI_DCE1)
7176441b	155	#define TRSLAT_SRC_CHOICE IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1)
e335c75c VL	156
	157	static void smartbot_resets_init(void)
	158	{
	159	if (!gpio_request(POWER_EN, "power-enable")) {
	160	gpio_direction_output(POWER_EN, 0);
	161	gpio_export(POWER_EN, false);
	162	}
	163
	164	if (!gpio_request(DSPIC_RST_B, "dspic-rst")) {
	165	gpio_direction_output(DSPIC_RST_B, 0);
	166	gpio_export(DSPIC_RST_B, false);
	167	}
	168
	169	if (!gpio_request(TRSLAT_RST_B, "translator-rst")) {
	170	gpio_direction_output(TRSLAT_RST_B, 0);
	171	gpio_export(TRSLAT_RST_B, false);
	172	}
	173
7176441b VL	174	if (!gpio_request(TRSLAT_SRC_CHOICE, "translator-src-choice")) {
	175	gpio_direction_output(TRSLAT_SRC_CHOICE, 0);
	176	gpio_export(TRSLAT_SRC_CHOICE, false);
e335c75c VL	177	}
	178	}
	179	/*
	180	* system init for baseboard usage. Will be called by mx31moboard init.
	181	*/
3a47b1a4	182	void __init mx31moboard_smartbot_init(int board)
e335c75c VL	183	{
	184	printk(KERN_INFO "Initializing mx31smartbot peripherals\n");
	185
	186	mxc_iomux_setup_multiple_pins(smartbot_pins, ARRAY_SIZE(smartbot_pins),
	187	"smartbot");
	188
16cf5c41	189	imx31_add_imx_uart1(&uart_pdata);
3a47b1a4 PR	190
	191	switch (board) {
	192	case MX31SMARTBOT:
9e1dde33	193	imx31_add_fsl_usb2_udc(&usb_pdata);
3a47b1a4 PR	194	break;
	195	case MX31EYEBOT:
	196	smartbot_otg_host_init();
	197	break;
	198	default:
	199	printk(KERN_WARNING "Unknown board %d, USB OTG not initialized",
	200	board);
	201	}
66c202ad	202
e335c75c VL	203	smartbot_resets_init();
	204
	205	smartbot_cam_init();
	206	platform_add_devices(smartbot_cameras, ARRAY_SIZE(smartbot_cameras));
	207	}