[deliverable/linux.git] / arch / arm / mach-mx3 / 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/fsl_devices.h>

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

#include <mach/common.h>
#include <mach/hardware.h>
#include <mach/imx-uart.h>
#include <mach/iomux-mx3.h>
#include <mach/board-mx31moboard.h>
#include <mach/mxc_ehci.h>
#include <mach/ulpi.h>

#include <media/soc_camera.h>

#include "devices.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 struct imxuart_platform_data uart_pdata = {
	.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,
	.module_name	= "mt9t031",
};

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

#if defined(CONFIG_USB_ULPI)

static struct mxc_usbh_platform_data otg_host_pdata = {
	.portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
	.flags	= MXC_EHCI_POWER_PINS_ENABLED,
};

static int __init smartbot_otg_host_init(void)
{
	otg_host_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
			USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);

	return mxc_register_device(&mxc_otg_host, &otg_host_pdata);
}
#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");

	mxc_register_device(&mxc_uart_device1, &uart_pdata);


	switch (board) {
	case MX31SMARTBOT:
		mxc_register_device(&mxc_otg_udc_device, &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>
66c202ad	22	#include <linux/fsl_devices.h>
e335c75c	23
3a47b1a4 PR	24	#include <linux/usb/otg.h>
	25	#include <linux/usb/ulpi.h>
	26
e335c75c VL	27	#include <mach/common.h>
	28	#include <mach/hardware.h>
	29	#include <mach/imx-uart.h>
	30	#include <mach/iomux-mx3.h>
3a47b1a4 PR	31	#include <mach/board-mx31moboard.h>
	32	#include <mach/mxc_ehci.h>
	33	#include <mach/ulpi.h>
e335c75c VL	34
	35	#include <media/soc_camera.h>
	36
	37	#include "devices.h"
	38
	39	static unsigned int smartbot_pins[] = {
	40	/* UART1 */
	41	MX31_PIN_CTS2__CTS2, MX31_PIN_RTS2__RTS2,
	42	MX31_PIN_TXD2__TXD2, MX31_PIN_RXD2__RXD2,
	43	/* CSI */
	44	MX31_PIN_CSI_D4__CSI_D4, MX31_PIN_CSI_D5__CSI_D5,
	45	MX31_PIN_CSI_D6__CSI_D6, MX31_PIN_CSI_D7__CSI_D7,
	46	MX31_PIN_CSI_D8__CSI_D8, MX31_PIN_CSI_D9__CSI_D9,
	47	MX31_PIN_CSI_D10__CSI_D10, MX31_PIN_CSI_D11__CSI_D11,
	48	MX31_PIN_CSI_D12__CSI_D12, MX31_PIN_CSI_D13__CSI_D13,
	49	MX31_PIN_CSI_D14__CSI_D14, MX31_PIN_CSI_D15__CSI_D15,
	50	MX31_PIN_CSI_HSYNC__CSI_HSYNC, MX31_PIN_CSI_MCLK__CSI_MCLK,
	51	MX31_PIN_CSI_PIXCLK__CSI_PIXCLK, MX31_PIN_CSI_VSYNC__CSI_VSYNC,
	52	MX31_PIN_GPIO3_0__GPIO3_0, MX31_PIN_GPIO3_1__GPIO3_1,
	53	/* ENABLES */
	54	MX31_PIN_DTR_DCE1__GPIO2_8, MX31_PIN_DSR_DCE1__GPIO2_9,
	55	MX31_PIN_RI_DCE1__GPIO2_10, MX31_PIN_DCD_DCE1__GPIO2_11,
	56	};
	57
	58	static struct imxuart_platform_data uart_pdata = {
	59	.flags = IMXUART_HAVE_RTSCTS,
	60	};
	61
	62	#define CAM_POWER IOMUX_TO_GPIO(MX31_PIN_GPIO3_1)
	63	#define CAM_RST_B IOMUX_TO_GPIO(MX31_PIN_GPIO3_0)
	64
	65	static int smartbot_cam_power(struct device *dev, int on)
	66	{
	67	gpio_set_value(CAM_POWER, !on);
	68	return 0;
	69	}
	70
	71	static int smartbot_cam_reset(struct device *dev)
	72	{
	73	gpio_set_value(CAM_RST_B, 0);
	74	udelay(100);
	75	gpio_set_value(CAM_RST_B, 1);
	76	return 0;
	77	}
	78
	79	static struct i2c_board_info smartbot_i2c_devices[] = {
	80	{
	81	I2C_BOARD_INFO("mt9t031", 0x5d),
	82	},
	83	};
	84
	85	static struct soc_camera_link base_iclink = {
	86	.bus_id = 0, /* Must match with the camera ID */
	87	.power = smartbot_cam_power,
	88	.reset = smartbot_cam_reset,
	89	.board_info = &smartbot_i2c_devices[0],
	90	.i2c_adapter_id = 0,
	91	.module_name = "mt9t031",
	92	};
	93
	94	static struct platform_device smartbot_camera[] = {
	95	{
	96	.name = "soc-camera-pdrv",
	97	.id = 0,
98	.dev = {
99	.platform_data = &base_iclink,
100	},
101	},
102	};
103
104	static struct platform_device *smartbot_cameras[] __initdata = {
105	&smartbot_camera[0],
106	};
107
108	static int __init smartbot_cam_init(void)
109	{
110	int ret = gpio_request(CAM_RST_B, "cam-reset");
111	if (ret)
112	return ret;
113	gpio_direction_output(CAM_RST_B, 1);
114	ret = gpio_request(CAM_POWER, "cam-standby");
115	if (ret)
116	return ret;
117	gpio_direction_output(CAM_POWER, 0);
118
119	return 0;
120	}
121
66c202ad PR	122	static struct fsl_usb2_platform_data usb_pdata = {
	123	.operating_mode = FSL_USB2_DR_DEVICE,
	124	.phy_mode = FSL_USB2_PHY_ULPI,
	125	};
	126
3a47b1a4 PR	127	#if defined(CONFIG_USB_ULPI)
	128
	129	static struct mxc_usbh_platform_data otg_host_pdata = {
	130	.portsc = MXC_EHCI_MODE_ULPI \| MXC_EHCI_UTMI_8BIT,
	131	.flags = MXC_EHCI_POWER_PINS_ENABLED,
	132	};
	133
	134	static int __init smartbot_otg_host_init(void)
	135	{
	136	otg_host_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
	137	USB_OTG_DRV_VBUS \| USB_OTG_DRV_VBUS_EXT);
	138
	139	return mxc_register_device(&mxc_otg_host, &otg_host_pdata);
	140	}
	141	#else
	142	static inline int smartbot_otg_host_init(void) { return 0; }
	143	#endif
	144
e335c75c VL	145	#define POWER_EN IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1)
	146	#define DSPIC_RST_B IOMUX_TO_GPIO(MX31_PIN_DSR_DCE1)
	147	#define TRSLAT_RST_B IOMUX_TO_GPIO(MX31_PIN_RI_DCE1)
7176441b	148	#define TRSLAT_SRC_CHOICE IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1)
e335c75c VL	149
	150	static void smartbot_resets_init(void)
	151	{
	152	if (!gpio_request(POWER_EN, "power-enable")) {
	153	gpio_direction_output(POWER_EN, 0);
	154	gpio_export(POWER_EN, false);
	155	}
	156
	157	if (!gpio_request(DSPIC_RST_B, "dspic-rst")) {
	158	gpio_direction_output(DSPIC_RST_B, 0);
	159	gpio_export(DSPIC_RST_B, false);
	160	}
	161
	162	if (!gpio_request(TRSLAT_RST_B, "translator-rst")) {
	163	gpio_direction_output(TRSLAT_RST_B, 0);
	164	gpio_export(TRSLAT_RST_B, false);
	165	}
	166
7176441b VL	167	if (!gpio_request(TRSLAT_SRC_CHOICE, "translator-src-choice")) {
	168	gpio_direction_output(TRSLAT_SRC_CHOICE, 0);
	169	gpio_export(TRSLAT_SRC_CHOICE, false);
e335c75c VL	170	}
	171	}
	172	/*
	173	* system init for baseboard usage. Will be called by mx31moboard init.
	174	*/
3a47b1a4	175	void __init mx31moboard_smartbot_init(int board)
e335c75c VL	176	{
	177	printk(KERN_INFO "Initializing mx31smartbot peripherals\n");
	178
	179	mxc_iomux_setup_multiple_pins(smartbot_pins, ARRAY_SIZE(smartbot_pins),
	180	"smartbot");
	181
	182	mxc_register_device(&mxc_uart_device1, &uart_pdata);
	183
3a47b1a4 PR	184
	185	switch (board) {
	186	case MX31SMARTBOT:
	187	mxc_register_device(&mxc_otg_udc_device, &usb_pdata);
	188	break;
	189	case MX31EYEBOT:
	190	smartbot_otg_host_init();
	191	break;
	192	default:
	193	printk(KERN_WARNING "Unknown board %d, USB OTG not initialized",
	194	board);
	195	}
66c202ad	196
e335c75c VL	197	smartbot_resets_init();
	198
	199	smartbot_cam_init();
	200	platform_add_devices(smartbot_cameras, ARRAY_SIZE(smartbot_cameras));
	201	}