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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> | |
22 | ||
3a47b1a4 PR |
23 | #include <linux/usb/otg.h> |
24 | #include <linux/usb/ulpi.h> | |
25 | ||
e335c75c VL |
26 | #include <mach/common.h> |
27 | #include <mach/hardware.h> | |
e335c75c | 28 | #include <mach/iomux-mx3.h> |
3a47b1a4 | 29 | #include <mach/board-mx31moboard.h> |
3a47b1a4 | 30 | #include <mach/ulpi.h> |
e335c75c VL |
31 | |
32 | #include <media/soc_camera.h> | |
33 | ||
16cf5c41 | 34 | #include "devices-imx31.h" |
e335c75c VL |
35 | #include "devices.h" |
36 | ||
37 | static 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 | ||
16cf5c41 | 56 | static const struct imxuart_platform_data uart_pdata __initconst = { |
e335c75c VL |
57 | .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 | ||
63 | static int smartbot_cam_power(struct device *dev, int on) | |
64 | { | |
65 | gpio_set_value(CAM_POWER, !on); | |
66 | return 0; | |
67 | } | |
68 | ||
69 | static 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 | ||
77 | static struct i2c_board_info smartbot_i2c_devices[] = { | |
78 | { | |
79 | I2C_BOARD_INFO("mt9t031", 0x5d), | |
80 | }, | |
81 | }; | |
82 | ||
83 | static 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, | |
e335c75c VL |
89 | }; |
90 | ||
91 | static 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 | ||
101 | static struct platform_device *smartbot_cameras[] __initdata = { | |
102 | &smartbot_camera[0], | |
103 | }; | |
104 | ||
105 | static 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 | ||
9e1dde33 | 119 | static const struct fsl_usb2_platform_data usb_pdata __initconst = { |
66c202ad PR |
120 | .operating_mode = FSL_USB2_DR_DEVICE, |
121 | .phy_mode = FSL_USB2_PHY_ULPI, | |
122 | }; | |
123 | ||
3a47b1a4 PR |
124 | #if defined(CONFIG_USB_ULPI) |
125 | ||
4bd597b6 SH |
126 | static int smartbot_otg_init(struct platform_device *pdev) |
127 | { | |
128 | return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED); | |
129 | } | |
130 | ||
2d58de28 | 131 | static struct mxc_usbh_platform_data otg_host_pdata __initdata = { |
4bd597b6 | 132 | .init = smartbot_otg_init, |
3a47b1a4 | 133 | .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT, |
3a47b1a4 PR |
134 | }; |
135 | ||
136 | static int __init smartbot_otg_host_init(void) | |
137 | { | |
2d58de28 UKK |
138 | struct platform_device *pdev; |
139 | ||
3a47b1a4 | 140 | otg_host_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops, |
13dd0c97 | 141 | ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT); |
3a47b1a4 | 142 | |
2d58de28 UKK |
143 | pdev = imx31_add_mxc_ehci_otg(&otg_host_pdata); |
144 | if (IS_ERR(pdev)) | |
145 | return PTR_ERR(pdev); | |
146 | ||
147 | return 0; | |
3a47b1a4 PR |
148 | } |
149 | #else | |
150 | static inline int smartbot_otg_host_init(void) { return 0; } | |
151 | #endif | |
152 | ||
e335c75c VL |
153 | #define POWER_EN IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1) |
154 | #define DSPIC_RST_B IOMUX_TO_GPIO(MX31_PIN_DSR_DCE1) | |
155 | #define TRSLAT_RST_B IOMUX_TO_GPIO(MX31_PIN_RI_DCE1) | |
7176441b | 156 | #define TRSLAT_SRC_CHOICE IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1) |
e335c75c VL |
157 | |
158 | static void smartbot_resets_init(void) | |
159 | { | |
160 | if (!gpio_request(POWER_EN, "power-enable")) { | |
161 | gpio_direction_output(POWER_EN, 0); | |
162 | gpio_export(POWER_EN, false); | |
163 | } | |
164 | ||
165 | if (!gpio_request(DSPIC_RST_B, "dspic-rst")) { | |
166 | gpio_direction_output(DSPIC_RST_B, 0); | |
167 | gpio_export(DSPIC_RST_B, false); | |
168 | } | |
169 | ||
170 | if (!gpio_request(TRSLAT_RST_B, "translator-rst")) { | |
171 | gpio_direction_output(TRSLAT_RST_B, 0); | |
172 | gpio_export(TRSLAT_RST_B, false); | |
173 | } | |
174 | ||
7176441b VL |
175 | if (!gpio_request(TRSLAT_SRC_CHOICE, "translator-src-choice")) { |
176 | gpio_direction_output(TRSLAT_SRC_CHOICE, 0); | |
177 | gpio_export(TRSLAT_SRC_CHOICE, false); | |
e335c75c VL |
178 | } |
179 | } | |
180 | /* | |
181 | * system init for baseboard usage. Will be called by mx31moboard init. | |
182 | */ | |
3a47b1a4 | 183 | void __init mx31moboard_smartbot_init(int board) |
e335c75c VL |
184 | { |
185 | printk(KERN_INFO "Initializing mx31smartbot peripherals\n"); | |
186 | ||
187 | mxc_iomux_setup_multiple_pins(smartbot_pins, ARRAY_SIZE(smartbot_pins), | |
188 | "smartbot"); | |
189 | ||
16cf5c41 | 190 | imx31_add_imx_uart1(&uart_pdata); |
3a47b1a4 PR |
191 | |
192 | switch (board) { | |
193 | case MX31SMARTBOT: | |
9e1dde33 | 194 | imx31_add_fsl_usb2_udc(&usb_pdata); |
3a47b1a4 PR |
195 | break; |
196 | case MX31EYEBOT: | |
197 | smartbot_otg_host_init(); | |
198 | break; | |
199 | default: | |
200 | printk(KERN_WARNING "Unknown board %d, USB OTG not initialized", | |
201 | board); | |
202 | } | |
66c202ad | 203 | |
e335c75c VL |
204 | smartbot_resets_init(); |
205 | ||
206 | smartbot_cam_init(); | |
207 | platform_add_devices(smartbot_cameras, ARRAY_SIZE(smartbot_cameras)); | |
208 | } |