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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 <media/soc_camera.h> |
27 | ||
3ed0bcb4 | 28 | #include "board-mx31moboard.h" |
e3372474 | 29 | #include "common.h" |
16cf5c41 | 30 | #include "devices-imx31.h" |
641dfe8b | 31 | #include "ehci.h" |
50f2de61 | 32 | #include "hardware.h" |
267dd34c | 33 | #include "iomux-mx3.h" |
39ef6340 | 34 | #include "ulpi.h" |
e335c75c VL |
35 | |
36 | static unsigned int smartbot_pins[] = { | |
37 | /* UART1 */ | |
38 | MX31_PIN_CTS2__CTS2, MX31_PIN_RTS2__RTS2, | |
39 | MX31_PIN_TXD2__TXD2, MX31_PIN_RXD2__RXD2, | |
40 | /* CSI */ | |
41 | MX31_PIN_CSI_D4__CSI_D4, MX31_PIN_CSI_D5__CSI_D5, | |
42 | MX31_PIN_CSI_D6__CSI_D6, MX31_PIN_CSI_D7__CSI_D7, | |
43 | MX31_PIN_CSI_D8__CSI_D8, MX31_PIN_CSI_D9__CSI_D9, | |
44 | MX31_PIN_CSI_D10__CSI_D10, MX31_PIN_CSI_D11__CSI_D11, | |
45 | MX31_PIN_CSI_D12__CSI_D12, MX31_PIN_CSI_D13__CSI_D13, | |
46 | MX31_PIN_CSI_D14__CSI_D14, MX31_PIN_CSI_D15__CSI_D15, | |
47 | MX31_PIN_CSI_HSYNC__CSI_HSYNC, MX31_PIN_CSI_MCLK__CSI_MCLK, | |
48 | MX31_PIN_CSI_PIXCLK__CSI_PIXCLK, MX31_PIN_CSI_VSYNC__CSI_VSYNC, | |
49 | MX31_PIN_GPIO3_0__GPIO3_0, MX31_PIN_GPIO3_1__GPIO3_1, | |
50 | /* ENABLES */ | |
51 | MX31_PIN_DTR_DCE1__GPIO2_8, MX31_PIN_DSR_DCE1__GPIO2_9, | |
52 | MX31_PIN_RI_DCE1__GPIO2_10, MX31_PIN_DCD_DCE1__GPIO2_11, | |
53 | }; | |
54 | ||
16cf5c41 | 55 | static const struct imxuart_platform_data uart_pdata __initconst = { |
e335c75c VL |
56 | .flags = IMXUART_HAVE_RTSCTS, |
57 | }; | |
58 | ||
59 | #define CAM_POWER IOMUX_TO_GPIO(MX31_PIN_GPIO3_1) | |
60 | #define CAM_RST_B IOMUX_TO_GPIO(MX31_PIN_GPIO3_0) | |
61 | ||
62 | static int smartbot_cam_power(struct device *dev, int on) | |
63 | { | |
64 | gpio_set_value(CAM_POWER, !on); | |
65 | return 0; | |
66 | } | |
67 | ||
68 | static int smartbot_cam_reset(struct device *dev) | |
69 | { | |
70 | gpio_set_value(CAM_RST_B, 0); | |
71 | udelay(100); | |
72 | gpio_set_value(CAM_RST_B, 1); | |
73 | return 0; | |
74 | } | |
75 | ||
76 | static struct i2c_board_info smartbot_i2c_devices[] = { | |
77 | { | |
78 | I2C_BOARD_INFO("mt9t031", 0x5d), | |
79 | }, | |
80 | }; | |
81 | ||
82 | static struct soc_camera_link base_iclink = { | |
83 | .bus_id = 0, /* Must match with the camera ID */ | |
84 | .power = smartbot_cam_power, | |
85 | .reset = smartbot_cam_reset, | |
86 | .board_info = &smartbot_i2c_devices[0], | |
87 | .i2c_adapter_id = 0, | |
e335c75c VL |
88 | }; |
89 | ||
90 | static struct platform_device smartbot_camera[] = { | |
91 | { | |
92 | .name = "soc-camera-pdrv", | |
93 | .id = 0, | |
94 | .dev = { | |
95 | .platform_data = &base_iclink, | |
96 | }, | |
97 | }, | |
98 | }; | |
99 | ||
100 | static struct platform_device *smartbot_cameras[] __initdata = { | |
101 | &smartbot_camera[0], | |
102 | }; | |
103 | ||
104 | static int __init smartbot_cam_init(void) | |
105 | { | |
106 | int ret = gpio_request(CAM_RST_B, "cam-reset"); | |
107 | if (ret) | |
108 | return ret; | |
109 | gpio_direction_output(CAM_RST_B, 1); | |
110 | ret = gpio_request(CAM_POWER, "cam-standby"); | |
111 | if (ret) | |
112 | return ret; | |
113 | gpio_direction_output(CAM_POWER, 0); | |
114 | ||
115 | return 0; | |
116 | } | |
117 | ||
9e1dde33 | 118 | static const struct fsl_usb2_platform_data usb_pdata __initconst = { |
66c202ad PR |
119 | .operating_mode = FSL_USB2_DR_DEVICE, |
120 | .phy_mode = FSL_USB2_PHY_ULPI, | |
121 | }; | |
122 | ||
3a47b1a4 PR |
123 | #if defined(CONFIG_USB_ULPI) |
124 | ||
4bd597b6 SH |
125 | static int smartbot_otg_init(struct platform_device *pdev) |
126 | { | |
127 | return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED); | |
128 | } | |
129 | ||
2d58de28 | 130 | static struct mxc_usbh_platform_data otg_host_pdata __initdata = { |
4bd597b6 | 131 | .init = smartbot_otg_init, |
3a47b1a4 | 132 | .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT, |
3a47b1a4 PR |
133 | }; |
134 | ||
135 | static int __init smartbot_otg_host_init(void) | |
136 | { | |
2d58de28 UKK |
137 | struct platform_device *pdev; |
138 | ||
48f6b099 SH |
139 | otg_host_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS | |
140 | ULPI_OTG_DRVVBUS_EXT); | |
141 | if (!otg_host_pdata.otg) | |
142 | return -ENODEV; | |
3a47b1a4 | 143 | |
2d58de28 | 144 | pdev = imx31_add_mxc_ehci_otg(&otg_host_pdata); |
2d58de28 | 145 | |
d3a22442 | 146 | return PTR_ERR_OR_ZERO(pdev); |
3a47b1a4 PR |
147 | } |
148 | #else | |
149 | static inline int smartbot_otg_host_init(void) { return 0; } | |
150 | #endif | |
151 | ||
e335c75c VL |
152 | #define POWER_EN IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1) |
153 | #define DSPIC_RST_B IOMUX_TO_GPIO(MX31_PIN_DSR_DCE1) | |
154 | #define TRSLAT_RST_B IOMUX_TO_GPIO(MX31_PIN_RI_DCE1) | |
7176441b | 155 | #define TRSLAT_SRC_CHOICE IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1) |
e335c75c VL |
156 | |
157 | static void smartbot_resets_init(void) | |
158 | { | |
159 | if (!gpio_request(POWER_EN, "power-enable")) { | |
160 | gpio_direction_output(POWER_EN, 0); | |
161 | gpio_export(POWER_EN, false); | |
162 | } | |
163 | ||
164 | if (!gpio_request(DSPIC_RST_B, "dspic-rst")) { | |
165 | gpio_direction_output(DSPIC_RST_B, 0); | |
166 | gpio_export(DSPIC_RST_B, false); | |
167 | } | |
168 | ||
169 | if (!gpio_request(TRSLAT_RST_B, "translator-rst")) { | |
170 | gpio_direction_output(TRSLAT_RST_B, 0); | |
171 | gpio_export(TRSLAT_RST_B, false); | |
172 | } | |
173 | ||
7176441b VL |
174 | if (!gpio_request(TRSLAT_SRC_CHOICE, "translator-src-choice")) { |
175 | gpio_direction_output(TRSLAT_SRC_CHOICE, 0); | |
176 | gpio_export(TRSLAT_SRC_CHOICE, false); | |
e335c75c VL |
177 | } |
178 | } | |
179 | /* | |
180 | * system init for baseboard usage. Will be called by mx31moboard init. | |
181 | */ | |
3a47b1a4 | 182 | void __init mx31moboard_smartbot_init(int board) |
e335c75c VL |
183 | { |
184 | printk(KERN_INFO "Initializing mx31smartbot peripherals\n"); | |
185 | ||
186 | mxc_iomux_setup_multiple_pins(smartbot_pins, ARRAY_SIZE(smartbot_pins), | |
187 | "smartbot"); | |
188 | ||
16cf5c41 | 189 | imx31_add_imx_uart1(&uart_pdata); |
3a47b1a4 PR |
190 | |
191 | switch (board) { | |
192 | case MX31SMARTBOT: | |
9e1dde33 | 193 | imx31_add_fsl_usb2_udc(&usb_pdata); |
3a47b1a4 PR |
194 | break; |
195 | case MX31EYEBOT: | |
196 | smartbot_otg_host_init(); | |
197 | break; | |
198 | default: | |
199 | printk(KERN_WARNING "Unknown board %d, USB OTG not initialized", | |
200 | board); | |
201 | } | |
66c202ad | 202 | |
e335c75c VL |
203 | smartbot_resets_init(); |
204 | ||
205 | smartbot_cam_init(); | |
206 | platform_add_devices(smartbot_cameras, ARRAY_SIZE(smartbot_cameras)); | |
207 | } |