2 * Copyright (C) 2009 Valentin Longchamp, EPFL Mobots group
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.
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.
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 #include <linux/fsl_devices.h>
24 #include <linux/usb/otg.h>
25 #include <linux/usb/ulpi.h>
27 #include <mach/common.h>
28 #include <mach/hardware.h>
29 #include <mach/iomux-mx3.h>
30 #include <mach/board-mx31moboard.h>
31 #include <mach/mxc_ehci.h>
32 #include <mach/ulpi.h>
34 #include <media/soc_camera.h>
36 #include "devices-imx31.h"
39 static unsigned int smartbot_pins[] = {
41 MX31_PIN_CTS2__CTS2, MX31_PIN_RTS2__RTS2,
42 MX31_PIN_TXD2__TXD2, MX31_PIN_RXD2__RXD2,
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,
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,
58 static const struct imxuart_platform_data uart_pdata __initconst = {
59 .flags = IMXUART_HAVE_RTSCTS,
62 #define CAM_POWER IOMUX_TO_GPIO(MX31_PIN_GPIO3_1)
63 #define CAM_RST_B IOMUX_TO_GPIO(MX31_PIN_GPIO3_0)
65 static int smartbot_cam_power(struct device *dev, int on)
67 gpio_set_value(CAM_POWER, !on);
71 static int smartbot_cam_reset(struct device *dev)
73 gpio_set_value(CAM_RST_B, 0);
75 gpio_set_value(CAM_RST_B, 1);
79 static struct i2c_board_info smartbot_i2c_devices[] = {
81 I2C_BOARD_INFO("mt9t031", 0x5d),
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],
91 .module_name = "mt9t031",
94 static struct platform_device smartbot_camera[] = {
96 .name = "soc-camera-pdrv",
99 .platform_data = &base_iclink,
104 static struct platform_device *smartbot_cameras[] __initdata = {
108 static int __init smartbot_cam_init(void)
110 int ret = gpio_request(CAM_RST_B, "cam-reset");
113 gpio_direction_output(CAM_RST_B, 1);
114 ret = gpio_request(CAM_POWER, "cam-standby");
117 gpio_direction_output(CAM_POWER, 0);
122 static struct fsl_usb2_platform_data usb_pdata = {
123 .operating_mode = FSL_USB2_DR_DEVICE,
124 .phy_mode = FSL_USB2_PHY_ULPI,
127 #if defined(CONFIG_USB_ULPI)
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,
134 static int __init smartbot_otg_host_init(void)
136 otg_host_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
137 USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
139 return mxc_register_device(&mxc_otg_host, &otg_host_pdata);
142 static inline int smartbot_otg_host_init(void) { return 0; }
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)
148 #define TRSLAT_SRC_CHOICE IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1)
150 static void smartbot_resets_init(void)
152 if (!gpio_request(POWER_EN, "power-enable")) {
153 gpio_direction_output(POWER_EN, 0);
154 gpio_export(POWER_EN, false);
157 if (!gpio_request(DSPIC_RST_B, "dspic-rst")) {
158 gpio_direction_output(DSPIC_RST_B, 0);
159 gpio_export(DSPIC_RST_B, false);
162 if (!gpio_request(TRSLAT_RST_B, "translator-rst")) {
163 gpio_direction_output(TRSLAT_RST_B, 0);
164 gpio_export(TRSLAT_RST_B, false);
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);
173 * system init for baseboard usage. Will be called by mx31moboard init.
175 void __init mx31moboard_smartbot_init(int board)
177 printk(KERN_INFO "Initializing mx31smartbot peripherals\n");
179 mxc_iomux_setup_multiple_pins(smartbot_pins, ARRAY_SIZE(smartbot_pins),
182 imx31_add_imx_uart1(&uart_pdata);
186 mxc_register_device(&mxc_otg_udc_device, &usb_pdata);
189 smartbot_otg_host_init();
192 printk(KERN_WARNING "Unknown board %d, USB OTG not initialized",
196 smartbot_resets_init();
199 platform_add_devices(smartbot_cameras, ARRAY_SIZE(smartbot_cameras));