Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 | /*
* 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 "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);
if (IS_ERR(pdev))
return PTR_ERR(pdev);
return 0;
}
#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));
}
|