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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> | |
e335c75c | 29 | #include <mach/iomux-mx3.h> |
3a47b1a4 PR |
30 | #include <mach/board-mx31moboard.h> |
31 | #include <mach/mxc_ehci.h> | |
32 | #include <mach/ulpi.h> | |
e335c75c VL |
33 | |
34 | #include <media/soc_camera.h> | |
35 | ||
16cf5c41 | 36 | #include "devices-imx31.h" |
e335c75c VL |
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 | ||
16cf5c41 | 58 | static const struct imxuart_platform_data uart_pdata __initconst = { |
e335c75c VL |
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, | |
e335c75c VL |
91 | }; |
92 | ||
93 | static struct platform_device smartbot_camera[] = { | |
94 | { | |
95 | .name = "soc-camera-pdrv", | |
96 | .id = 0, | |
97 | .dev = { | |
98 | .platform_data = &base_iclink, | |
99 | }, | |
100 | }, | |
101 | }; | |
102 | ||
103 | static struct platform_device *smartbot_cameras[] __initdata = { | |
104 | &smartbot_camera[0], | |
105 | }; | |
106 | ||
107 | static int __init smartbot_cam_init(void) | |
108 | { | |
109 | int ret = gpio_request(CAM_RST_B, "cam-reset"); | |
110 | if (ret) | |
111 | return ret; | |
112 | gpio_direction_output(CAM_RST_B, 1); | |
113 | ret = gpio_request(CAM_POWER, "cam-standby"); | |
114 | if (ret) | |
115 | return ret; | |
116 | gpio_direction_output(CAM_POWER, 0); | |
117 | ||
118 | return 0; | |
119 | } | |
120 | ||
66c202ad PR |
121 | static struct fsl_usb2_platform_data usb_pdata = { |
122 | .operating_mode = FSL_USB2_DR_DEVICE, | |
123 | .phy_mode = FSL_USB2_PHY_ULPI, | |
124 | }; | |
125 | ||
3a47b1a4 PR |
126 | #if defined(CONFIG_USB_ULPI) |
127 | ||
128 | static struct mxc_usbh_platform_data otg_host_pdata = { | |
129 | .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT, | |
130 | .flags = MXC_EHCI_POWER_PINS_ENABLED, | |
131 | }; | |
132 | ||
133 | static int __init smartbot_otg_host_init(void) | |
134 | { | |
135 | otg_host_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops, | |
13dd0c97 | 136 | ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT); |
3a47b1a4 PR |
137 | |
138 | return mxc_register_device(&mxc_otg_host, &otg_host_pdata); | |
139 | } | |
140 | #else | |
141 | static inline int smartbot_otg_host_init(void) { return 0; } | |
142 | #endif | |
143 | ||
e335c75c VL |
144 | #define POWER_EN IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1) |
145 | #define DSPIC_RST_B IOMUX_TO_GPIO(MX31_PIN_DSR_DCE1) | |
146 | #define TRSLAT_RST_B IOMUX_TO_GPIO(MX31_PIN_RI_DCE1) | |
7176441b | 147 | #define TRSLAT_SRC_CHOICE IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1) |
e335c75c VL |
148 | |
149 | static void smartbot_resets_init(void) | |
150 | { | |
151 | if (!gpio_request(POWER_EN, "power-enable")) { | |
152 | gpio_direction_output(POWER_EN, 0); | |
153 | gpio_export(POWER_EN, false); | |
154 | } | |
155 | ||
156 | if (!gpio_request(DSPIC_RST_B, "dspic-rst")) { | |
157 | gpio_direction_output(DSPIC_RST_B, 0); | |
158 | gpio_export(DSPIC_RST_B, false); | |
159 | } | |
160 | ||
161 | if (!gpio_request(TRSLAT_RST_B, "translator-rst")) { | |
162 | gpio_direction_output(TRSLAT_RST_B, 0); | |
163 | gpio_export(TRSLAT_RST_B, false); | |
164 | } | |
165 | ||
7176441b VL |
166 | if (!gpio_request(TRSLAT_SRC_CHOICE, "translator-src-choice")) { |
167 | gpio_direction_output(TRSLAT_SRC_CHOICE, 0); | |
168 | gpio_export(TRSLAT_SRC_CHOICE, false); | |
e335c75c VL |
169 | } |
170 | } | |
171 | /* | |
172 | * system init for baseboard usage. Will be called by mx31moboard init. | |
173 | */ | |
3a47b1a4 | 174 | void __init mx31moboard_smartbot_init(int board) |
e335c75c VL |
175 | { |
176 | printk(KERN_INFO "Initializing mx31smartbot peripherals\n"); | |
177 | ||
178 | mxc_iomux_setup_multiple_pins(smartbot_pins, ARRAY_SIZE(smartbot_pins), | |
179 | "smartbot"); | |
180 | ||
16cf5c41 | 181 | imx31_add_imx_uart1(&uart_pdata); |
3a47b1a4 PR |
182 | |
183 | switch (board) { | |
184 | case MX31SMARTBOT: | |
185 | mxc_register_device(&mxc_otg_udc_device, &usb_pdata); | |
186 | break; | |
187 | case MX31EYEBOT: | |
188 | smartbot_otg_host_init(); | |
189 | break; | |
190 | default: | |
191 | printk(KERN_WARNING "Unknown board %d, USB OTG not initialized", | |
192 | board); | |
193 | } | |
66c202ad | 194 | |
e335c75c VL |
195 | smartbot_resets_init(); |
196 | ||
197 | smartbot_cam_init(); | |
198 | platform_add_devices(smartbot_cameras, ARRAY_SIZE(smartbot_cameras)); | |
199 | } |