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
209
|
/*
* 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 <mach/hardware.h>
#include <media/soc_camera.h>
#include "board-mx31moboard.h"
#include "common.h"
#include "devices-imx31.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));
}
|
