Valentin Longchamp | e00f0b4 | 2009-02-16 12:47:51 +0100 | [diff] [blame] | 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. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write to the Free Software |
| 16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 17 | */ |
| 18 | |
Valentin Longchamp | 04ea3c8 | 2009-11-03 18:09:51 +0100 | [diff] [blame] | 19 | #include <linux/delay.h> |
Valentin Longchamp | 45b131a | 2009-04-21 10:24:56 +0200 | [diff] [blame] | 20 | #include <linux/gpio.h> |
Valentin Longchamp | e00f0b4 | 2009-02-16 12:47:51 +0100 | [diff] [blame] | 21 | #include <linux/init.h> |
Valentin Longchamp | 45b131a | 2009-04-21 10:24:56 +0200 | [diff] [blame] | 22 | #include <linux/interrupt.h> |
Valentin Longchamp | 04ea3c8 | 2009-11-03 18:09:51 +0100 | [diff] [blame] | 23 | #include <linux/i2c.h> |
Valentin Longchamp | e00f0b4 | 2009-02-16 12:47:51 +0100 | [diff] [blame] | 24 | #include <linux/platform_device.h> |
Valentin Longchamp | 220bbce | 2009-04-17 15:20:25 +0200 | [diff] [blame] | 25 | #include <linux/types.h> |
Valentin Longchamp | e00f0b4 | 2009-02-16 12:47:51 +0100 | [diff] [blame] | 26 | |
Valentin Longchamp | e00f0b4 | 2009-02-16 12:47:51 +0100 | [diff] [blame] | 27 | #include <mach/common.h> |
Valentin Longchamp | 220bbce | 2009-04-17 15:20:25 +0200 | [diff] [blame] | 28 | #include <mach/hardware.h> |
Valentin Longchamp | e00f0b4 | 2009-02-16 12:47:51 +0100 | [diff] [blame] | 29 | #include <mach/imx-uart.h> |
| 30 | #include <mach/iomux-mx3.h> |
Valentin Longchamp | 45b131a | 2009-04-21 10:24:56 +0200 | [diff] [blame] | 31 | #include <mach/mmc.h> |
Valentin Longchamp | e00f0b4 | 2009-02-16 12:47:51 +0100 | [diff] [blame] | 32 | |
Valentin Longchamp | 04ea3c8 | 2009-11-03 18:09:51 +0100 | [diff] [blame] | 33 | #include <media/soc_camera.h> |
| 34 | |
Valentin Longchamp | e00f0b4 | 2009-02-16 12:47:51 +0100 | [diff] [blame] | 35 | #include "devices.h" |
| 36 | |
Valentin Longchamp | 56c7a45 | 2009-04-22 10:55:50 +0200 | [diff] [blame] | 37 | static unsigned int marxbot_pins[] = { |
| 38 | /* SDHC2 */ |
| 39 | MX31_PIN_PC_PWRON__SD2_DATA3, MX31_PIN_PC_VS1__SD2_DATA2, |
| 40 | MX31_PIN_PC_READY__SD2_DATA1, MX31_PIN_PC_WAIT_B__SD2_DATA0, |
| 41 | MX31_PIN_PC_CD2_B__SD2_CLK, MX31_PIN_PC_CD1_B__SD2_CMD, |
| 42 | MX31_PIN_ATA_DIOR__GPIO3_28, MX31_PIN_ATA_DIOW__GPIO3_29, |
| 43 | /* CSI */ |
Valentin Longchamp | 56c7a45 | 2009-04-22 10:55:50 +0200 | [diff] [blame] | 44 | MX31_PIN_CSI_D6__CSI_D6, MX31_PIN_CSI_D7__CSI_D7, |
| 45 | MX31_PIN_CSI_D8__CSI_D8, MX31_PIN_CSI_D9__CSI_D9, |
| 46 | MX31_PIN_CSI_D10__CSI_D10, MX31_PIN_CSI_D11__CSI_D11, |
| 47 | MX31_PIN_CSI_D12__CSI_D12, MX31_PIN_CSI_D13__CSI_D13, |
| 48 | MX31_PIN_CSI_D14__CSI_D14, MX31_PIN_CSI_D15__CSI_D15, |
| 49 | MX31_PIN_CSI_HSYNC__CSI_HSYNC, MX31_PIN_CSI_MCLK__CSI_MCLK, |
| 50 | MX31_PIN_CSI_PIXCLK__CSI_PIXCLK, MX31_PIN_CSI_VSYNC__CSI_VSYNC, |
Valentin Longchamp | 04ea3c8 | 2009-11-03 18:09:51 +0100 | [diff] [blame] | 51 | MX31_PIN_CSI_D4__GPIO3_4, MX31_PIN_CSI_D5__GPIO3_5, |
Valentin Longchamp | 56c7a45 | 2009-04-22 10:55:50 +0200 | [diff] [blame] | 52 | MX31_PIN_GPIO3_0__GPIO3_0, MX31_PIN_GPIO3_1__GPIO3_1, |
| 53 | MX31_PIN_TXD2__GPIO1_28, |
Valentin Longchamp | 2718c15 | 2009-08-12 11:29:21 +0200 | [diff] [blame] | 54 | /* dsPIC resets */ |
| 55 | MX31_PIN_STXD5__GPIO1_21, MX31_PIN_SRXD5__GPIO1_22, |
Valentin Longchamp | 10949ff | 2009-11-03 18:09:48 +0100 | [diff] [blame] | 56 | /*battery detection */ |
| 57 | MX31_PIN_LCS0__GPIO3_23, |
Valentin Longchamp | 56c7a45 | 2009-04-22 10:55:50 +0200 | [diff] [blame] | 58 | }; |
| 59 | |
Valentin Longchamp | 45b131a | 2009-04-21 10:24:56 +0200 | [diff] [blame] | 60 | #define SDHC2_CD IOMUX_TO_GPIO(MX31_PIN_ATA_DIOR) |
| 61 | #define SDHC2_WP IOMUX_TO_GPIO(MX31_PIN_ATA_DIOW) |
| 62 | |
| 63 | static int marxbot_sdhc2_get_ro(struct device *dev) |
| 64 | { |
Valentin Longchamp | 563abb4 | 2009-08-11 17:29:21 +0200 | [diff] [blame] | 65 | return !gpio_get_value(SDHC2_WP); |
Valentin Longchamp | 45b131a | 2009-04-21 10:24:56 +0200 | [diff] [blame] | 66 | } |
| 67 | |
| 68 | static int marxbot_sdhc2_init(struct device *dev, irq_handler_t detect_irq, |
| 69 | void *data) |
| 70 | { |
Sascha Hauer | 4f163eb | 2009-05-06 12:55:50 +0200 | [diff] [blame] | 71 | int ret; |
| 72 | |
| 73 | ret = gpio_request(SDHC2_CD, "sdhc-detect"); |
| 74 | if (ret) |
| 75 | return ret; |
| 76 | |
| 77 | gpio_direction_input(SDHC2_CD); |
| 78 | |
| 79 | ret = gpio_request(SDHC2_WP, "sdhc-wp"); |
| 80 | if (ret) |
| 81 | goto err_gpio_free; |
| 82 | gpio_direction_input(SDHC2_WP); |
| 83 | |
| 84 | ret = request_irq(gpio_to_irq(SDHC2_CD), detect_irq, |
Valentin Longchamp | 45b131a | 2009-04-21 10:24:56 +0200 | [diff] [blame] | 85 | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, |
| 86 | "sdhc2-card-detect", data); |
Sascha Hauer | 4f163eb | 2009-05-06 12:55:50 +0200 | [diff] [blame] | 87 | if (ret) |
| 88 | goto err_gpio_free_2; |
| 89 | |
| 90 | return 0; |
| 91 | |
| 92 | err_gpio_free_2: |
| 93 | gpio_free(SDHC2_WP); |
| 94 | err_gpio_free: |
| 95 | gpio_free(SDHC2_CD); |
| 96 | |
| 97 | return ret; |
Valentin Longchamp | 45b131a | 2009-04-21 10:24:56 +0200 | [diff] [blame] | 98 | } |
| 99 | |
| 100 | static void marxbot_sdhc2_exit(struct device *dev, void *data) |
| 101 | { |
| 102 | free_irq(gpio_to_irq(SDHC2_CD), data); |
Sascha Hauer | 4f163eb | 2009-05-06 12:55:50 +0200 | [diff] [blame] | 103 | gpio_free(SDHC2_WP); |
| 104 | gpio_free(SDHC2_CD); |
Valentin Longchamp | 45b131a | 2009-04-21 10:24:56 +0200 | [diff] [blame] | 105 | } |
| 106 | |
| 107 | static struct imxmmc_platform_data sdhc2_pdata = { |
| 108 | .get_ro = marxbot_sdhc2_get_ro, |
| 109 | .init = marxbot_sdhc2_init, |
| 110 | .exit = marxbot_sdhc2_exit, |
| 111 | }; |
| 112 | |
Valentin Longchamp | 2718c15 | 2009-08-12 11:29:21 +0200 | [diff] [blame] | 113 | #define TRSLAT_RST_B IOMUX_TO_GPIO(MX31_PIN_STXD5) |
| 114 | #define DSPICS_RST_B IOMUX_TO_GPIO(MX31_PIN_SRXD5) |
| 115 | |
| 116 | static void dspics_resets_init(void) |
| 117 | { |
| 118 | if (!gpio_request(TRSLAT_RST_B, "translator-rst")) { |
| 119 | gpio_direction_output(TRSLAT_RST_B, 1); |
| 120 | gpio_export(TRSLAT_RST_B, false); |
| 121 | } |
| 122 | |
| 123 | if (!gpio_request(DSPICS_RST_B, "dspics-rst")) { |
| 124 | gpio_direction_output(DSPICS_RST_B, 1); |
| 125 | gpio_export(DSPICS_RST_B, false); |
| 126 | } |
| 127 | } |
| 128 | |
Valentin Longchamp | 04ea3c8 | 2009-11-03 18:09:51 +0100 | [diff] [blame] | 129 | #define TURRETCAM_POWER IOMUX_TO_GPIO(MX31_PIN_GPIO3_1) |
| 130 | #define BASECAM_POWER IOMUX_TO_GPIO(MX31_PIN_CSI_D5) |
| 131 | #define TURRETCAM_RST_B IOMUX_TO_GPIO(MX31_PIN_GPIO3_0) |
| 132 | #define BASECAM_RST_B IOMUX_TO_GPIO(MX31_PIN_CSI_D4) |
| 133 | #define CAM_CHOICE IOMUX_TO_GPIO(MX31_PIN_TXD2) |
| 134 | |
| 135 | static int marxbot_basecam_power(struct device *dev, int on) |
| 136 | { |
| 137 | gpio_set_value(BASECAM_POWER, !on); |
| 138 | return 0; |
| 139 | } |
| 140 | |
| 141 | static int marxbot_basecam_reset(struct device *dev) |
| 142 | { |
| 143 | gpio_set_value(BASECAM_RST_B, 0); |
| 144 | udelay(100); |
| 145 | gpio_set_value(BASECAM_RST_B, 1); |
| 146 | return 0; |
| 147 | } |
| 148 | |
| 149 | static struct i2c_board_info marxbot_i2c_devices[] = { |
| 150 | { |
| 151 | I2C_BOARD_INFO("mt9t031", 0x5d), |
| 152 | }, |
| 153 | }; |
| 154 | |
| 155 | static struct soc_camera_link base_iclink = { |
| 156 | .bus_id = 0, /* Must match with the camera ID */ |
| 157 | .power = marxbot_basecam_power, |
| 158 | .reset = marxbot_basecam_reset, |
| 159 | .board_info = &marxbot_i2c_devices[0], |
| 160 | .i2c_adapter_id = 0, |
| 161 | .module_name = "mt9t031", |
| 162 | }; |
| 163 | |
| 164 | static struct platform_device marxbot_camera[] = { |
| 165 | { |
| 166 | .name = "soc-camera-pdrv", |
| 167 | .id = 0, |
| 168 | .dev = { |
| 169 | .platform_data = &base_iclink, |
| 170 | }, |
| 171 | }, |
| 172 | }; |
| 173 | |
| 174 | static struct platform_device *marxbot_cameras[] __initdata = { |
| 175 | &marxbot_camera[0], |
| 176 | }; |
| 177 | |
| 178 | static int __init marxbot_cam_init(void) |
| 179 | { |
| 180 | int ret = gpio_request(CAM_CHOICE, "cam-choice"); |
| 181 | if (ret) |
| 182 | return ret; |
| 183 | gpio_direction_output(CAM_CHOICE, 1); |
| 184 | |
| 185 | ret = gpio_request(BASECAM_RST_B, "basecam-reset"); |
| 186 | if (ret) |
| 187 | return ret; |
| 188 | gpio_direction_output(BASECAM_RST_B, 1); |
| 189 | ret = gpio_request(BASECAM_POWER, "basecam-standby"); |
| 190 | if (ret) |
| 191 | return ret; |
| 192 | gpio_direction_output(BASECAM_POWER, 0); |
| 193 | |
| 194 | ret = gpio_request(TURRETCAM_RST_B, "turretcam-reset"); |
| 195 | if (ret) |
| 196 | return ret; |
| 197 | gpio_direction_output(TURRETCAM_RST_B, 1); |
| 198 | ret = gpio_request(TURRETCAM_POWER, "turretcam-standby"); |
| 199 | if (ret) |
| 200 | return ret; |
| 201 | gpio_direction_output(TURRETCAM_POWER, 0); |
| 202 | |
| 203 | return 0; |
| 204 | } |
| 205 | |
Valentin Longchamp | e00f0b4 | 2009-02-16 12:47:51 +0100 | [diff] [blame] | 206 | /* |
| 207 | * system init for baseboard usage. Will be called by mx31moboard init. |
| 208 | */ |
| 209 | void __init mx31moboard_marxbot_init(void) |
| 210 | { |
| 211 | printk(KERN_INFO "Initializing mx31marxbot peripherals\n"); |
Valentin Longchamp | 56c7a45 | 2009-04-22 10:55:50 +0200 | [diff] [blame] | 212 | |
| 213 | mxc_iomux_setup_multiple_pins(marxbot_pins, ARRAY_SIZE(marxbot_pins), |
| 214 | "marxbot"); |
Valentin Longchamp | 45b131a | 2009-04-21 10:24:56 +0200 | [diff] [blame] | 215 | |
Valentin Longchamp | 2718c15 | 2009-08-12 11:29:21 +0200 | [diff] [blame] | 216 | dspics_resets_init(); |
| 217 | |
Valentin Longchamp | 45b131a | 2009-04-21 10:24:56 +0200 | [diff] [blame] | 218 | mxc_register_device(&mxcsdhc_device1, &sdhc2_pdata); |
Valentin Longchamp | 10949ff | 2009-11-03 18:09:48 +0100 | [diff] [blame] | 219 | |
Valentin Longchamp | 04ea3c8 | 2009-11-03 18:09:51 +0100 | [diff] [blame] | 220 | marxbot_cam_init(); |
| 221 | platform_add_devices(marxbot_cameras, ARRAY_SIZE(marxbot_cameras)); |
| 222 | |
Valentin Longchamp | 10949ff | 2009-11-03 18:09:48 +0100 | [diff] [blame] | 223 | /* battery present pin */ |
| 224 | gpio_request(IOMUX_TO_GPIO(MX31_PIN_LCS0), "bat-present"); |
| 225 | gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_LCS0)); |
| 226 | gpio_export(IOMUX_TO_GPIO(MX31_PIN_LCS0), false); |
Valentin Longchamp | e00f0b4 | 2009-02-16 12:47:51 +0100 | [diff] [blame] | 227 | } |