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Valentin Longchampe335c752010-02-09 18:13:36 +01001/*
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.
Valentin Longchampe335c752010-02-09 18:13:36 +010013 */
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
Philippe Rétornaz3a47b1a2010-05-11 16:57:51 +020023#include <linux/usb/otg.h>
24#include <linux/usb/ulpi.h>
25
Valentin Longchampe335c752010-02-09 18:13:36 +010026#include <mach/common.h>
27#include <mach/hardware.h>
Valentin Longchampe335c752010-02-09 18:13:36 +010028#include <mach/iomux-mx3.h>
Philippe Rétornaz3a47b1a2010-05-11 16:57:51 +020029#include <mach/board-mx31moboard.h>
Philippe Rétornaz3a47b1a2010-05-11 16:57:51 +020030#include <mach/ulpi.h>
Valentin Longchampe335c752010-02-09 18:13:36 +010031
32#include <media/soc_camera.h>
33
Uwe Kleine-König16cf5c42010-06-23 11:46:16 +020034#include "devices-imx31.h"
Valentin Longchampe335c752010-02-09 18:13:36 +010035#include "devices.h"
36
37static unsigned int smartbot_pins[] = {
38 /* UART1 */
39 MX31_PIN_CTS2__CTS2, MX31_PIN_RTS2__RTS2,
40 MX31_PIN_TXD2__TXD2, MX31_PIN_RXD2__RXD2,
41 /* CSI */
42 MX31_PIN_CSI_D4__CSI_D4, MX31_PIN_CSI_D5__CSI_D5,
43 MX31_PIN_CSI_D6__CSI_D6, MX31_PIN_CSI_D7__CSI_D7,
44 MX31_PIN_CSI_D8__CSI_D8, MX31_PIN_CSI_D9__CSI_D9,
45 MX31_PIN_CSI_D10__CSI_D10, MX31_PIN_CSI_D11__CSI_D11,
46 MX31_PIN_CSI_D12__CSI_D12, MX31_PIN_CSI_D13__CSI_D13,
47 MX31_PIN_CSI_D14__CSI_D14, MX31_PIN_CSI_D15__CSI_D15,
48 MX31_PIN_CSI_HSYNC__CSI_HSYNC, MX31_PIN_CSI_MCLK__CSI_MCLK,
49 MX31_PIN_CSI_PIXCLK__CSI_PIXCLK, MX31_PIN_CSI_VSYNC__CSI_VSYNC,
50 MX31_PIN_GPIO3_0__GPIO3_0, MX31_PIN_GPIO3_1__GPIO3_1,
51 /* ENABLES */
52 MX31_PIN_DTR_DCE1__GPIO2_8, MX31_PIN_DSR_DCE1__GPIO2_9,
53 MX31_PIN_RI_DCE1__GPIO2_10, MX31_PIN_DCD_DCE1__GPIO2_11,
54};
55
Uwe Kleine-König16cf5c42010-06-23 11:46:16 +020056static const struct imxuart_platform_data uart_pdata __initconst = {
Valentin Longchampe335c752010-02-09 18:13:36 +010057 .flags = IMXUART_HAVE_RTSCTS,
58};
59
60#define CAM_POWER IOMUX_TO_GPIO(MX31_PIN_GPIO3_1)
61#define CAM_RST_B IOMUX_TO_GPIO(MX31_PIN_GPIO3_0)
62
63static int smartbot_cam_power(struct device *dev, int on)
64{
65 gpio_set_value(CAM_POWER, !on);
66 return 0;
67}
68
69static int smartbot_cam_reset(struct device *dev)
70{
71 gpio_set_value(CAM_RST_B, 0);
72 udelay(100);
73 gpio_set_value(CAM_RST_B, 1);
74 return 0;
75}
76
77static struct i2c_board_info smartbot_i2c_devices[] = {
78 {
79 I2C_BOARD_INFO("mt9t031", 0x5d),
80 },
81};
82
83static struct soc_camera_link base_iclink = {
84 .bus_id = 0, /* Must match with the camera ID */
85 .power = smartbot_cam_power,
86 .reset = smartbot_cam_reset,
87 .board_info = &smartbot_i2c_devices[0],
88 .i2c_adapter_id = 0,
Valentin Longchampe335c752010-02-09 18:13:36 +010089};
90
91static struct platform_device smartbot_camera[] = {
92 {
93 .name = "soc-camera-pdrv",
94 .id = 0,
95 .dev = {
96 .platform_data = &base_iclink,
97 },
98 },
99};
100
101static struct platform_device *smartbot_cameras[] __initdata = {
102 &smartbot_camera[0],
103};
104
105static int __init smartbot_cam_init(void)
106{
107 int ret = gpio_request(CAM_RST_B, "cam-reset");
108 if (ret)
109 return ret;
110 gpio_direction_output(CAM_RST_B, 1);
111 ret = gpio_request(CAM_POWER, "cam-standby");
112 if (ret)
113 return ret;
114 gpio_direction_output(CAM_POWER, 0);
115
116 return 0;
117}
118
Uwe Kleine-König9e1dde32010-11-12 16:40:06 +0100119static const struct fsl_usb2_platform_data usb_pdata __initconst = {
Philippe Rétornaz66c202a2010-05-11 16:57:50 +0200120 .operating_mode = FSL_USB2_DR_DEVICE,
121 .phy_mode = FSL_USB2_PHY_ULPI,
122};
123
Philippe Rétornaz3a47b1a2010-05-11 16:57:51 +0200124#if defined(CONFIG_USB_ULPI)
125
Uwe Kleine-König2d58de22010-11-15 11:57:49 +0100126static struct mxc_usbh_platform_data otg_host_pdata __initdata = {
Philippe Rétornaz3a47b1a2010-05-11 16:57:51 +0200127 .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
128 .flags = MXC_EHCI_POWER_PINS_ENABLED,
129};
130
131static int __init smartbot_otg_host_init(void)
132{
Uwe Kleine-König2d58de22010-11-15 11:57:49 +0100133 struct platform_device *pdev;
134
Philippe Rétornaz3a47b1a2010-05-11 16:57:51 +0200135 otg_host_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
Igor Grinberg13dd0c92010-07-15 16:00:16 +0300136 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
Philippe Rétornaz3a47b1a2010-05-11 16:57:51 +0200137
Uwe Kleine-König2d58de22010-11-15 11:57:49 +0100138 pdev = imx31_add_mxc_ehci_otg(&otg_host_pdata);
139 if (IS_ERR(pdev))
140 return PTR_ERR(pdev);
141
142 return 0;
Philippe Rétornaz3a47b1a2010-05-11 16:57:51 +0200143}
144#else
145static inline int smartbot_otg_host_init(void) { return 0; }
146#endif
147
Valentin Longchampe335c752010-02-09 18:13:36 +0100148#define POWER_EN IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1)
149#define DSPIC_RST_B IOMUX_TO_GPIO(MX31_PIN_DSR_DCE1)
150#define TRSLAT_RST_B IOMUX_TO_GPIO(MX31_PIN_RI_DCE1)
Valentin Longchamp71764412010-05-05 11:34:21 +0200151#define TRSLAT_SRC_CHOICE IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1)
Valentin Longchampe335c752010-02-09 18:13:36 +0100152
153static void smartbot_resets_init(void)
154{
155 if (!gpio_request(POWER_EN, "power-enable")) {
156 gpio_direction_output(POWER_EN, 0);
157 gpio_export(POWER_EN, false);
158 }
159
160 if (!gpio_request(DSPIC_RST_B, "dspic-rst")) {
161 gpio_direction_output(DSPIC_RST_B, 0);
162 gpio_export(DSPIC_RST_B, false);
163 }
164
165 if (!gpio_request(TRSLAT_RST_B, "translator-rst")) {
166 gpio_direction_output(TRSLAT_RST_B, 0);
167 gpio_export(TRSLAT_RST_B, false);
168 }
169
Valentin Longchamp71764412010-05-05 11:34:21 +0200170 if (!gpio_request(TRSLAT_SRC_CHOICE, "translator-src-choice")) {
171 gpio_direction_output(TRSLAT_SRC_CHOICE, 0);
172 gpio_export(TRSLAT_SRC_CHOICE, false);
Valentin Longchampe335c752010-02-09 18:13:36 +0100173 }
174}
175/*
176 * system init for baseboard usage. Will be called by mx31moboard init.
177 */
Philippe Rétornaz3a47b1a2010-05-11 16:57:51 +0200178void __init mx31moboard_smartbot_init(int board)
Valentin Longchampe335c752010-02-09 18:13:36 +0100179{
180 printk(KERN_INFO "Initializing mx31smartbot peripherals\n");
181
182 mxc_iomux_setup_multiple_pins(smartbot_pins, ARRAY_SIZE(smartbot_pins),
183 "smartbot");
184
Uwe Kleine-König16cf5c42010-06-23 11:46:16 +0200185 imx31_add_imx_uart1(&uart_pdata);
Philippe Rétornaz3a47b1a2010-05-11 16:57:51 +0200186
187 switch (board) {
188 case MX31SMARTBOT:
Uwe Kleine-König9e1dde32010-11-12 16:40:06 +0100189 imx31_add_fsl_usb2_udc(&usb_pdata);
Philippe Rétornaz3a47b1a2010-05-11 16:57:51 +0200190 break;
191 case MX31EYEBOT:
192 smartbot_otg_host_init();
193 break;
194 default:
195 printk(KERN_WARNING "Unknown board %d, USB OTG not initialized",
196 board);
197 }
Philippe Rétornaz66c202a2010-05-11 16:57:50 +0200198
Valentin Longchampe335c752010-02-09 18:13:36 +0100199 smartbot_resets_init();
200
201 smartbot_cam_init();
202 platform_add_devices(smartbot_cameras, ARRAY_SIZE(smartbot_cameras));
203}