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 | 33c4d91 | 2009-11-23 19:16:36 +0100 | [diff] [blame] | 24 | #include <linux/spi/spi.h> |
Valentin Longchamp | e00f0b4 | 2009-02-16 12:47:51 +0100 | [diff] [blame] | 25 | #include <linux/platform_device.h> |
Valentin Longchamp | 220bbce | 2009-04-17 15:20:25 +0200 | [diff] [blame] | 26 | #include <linux/types.h> |
Valentin Longchamp | e00f0b4 | 2009-02-16 12:47:51 +0100 | [diff] [blame] | 27 | |
Valentin Longchamp | d67d107 | 2009-11-23 19:16:37 +0100 | [diff] [blame] | 28 | #include <linux/usb/otg.h> |
| 29 | |
Valentin Longchamp | e00f0b4 | 2009-02-16 12:47:51 +0100 | [diff] [blame] | 30 | #include <mach/common.h> |
Valentin Longchamp | 220bbce | 2009-04-17 15:20:25 +0200 | [diff] [blame] | 31 | #include <mach/hardware.h> |
Valentin Longchamp | e00f0b4 | 2009-02-16 12:47:51 +0100 | [diff] [blame] | 32 | #include <mach/imx-uart.h> |
| 33 | #include <mach/iomux-mx3.h> |
Valentin Longchamp | 45b131a | 2009-04-21 10:24:56 +0200 | [diff] [blame] | 34 | #include <mach/mmc.h> |
Valentin Longchamp | d67d107 | 2009-11-23 19:16:37 +0100 | [diff] [blame] | 35 | #include <mach/mxc_ehci.h> |
| 36 | #include <mach/ulpi.h> |
Valentin Longchamp | e00f0b4 | 2009-02-16 12:47:51 +0100 | [diff] [blame] | 37 | |
Valentin Longchamp | 04ea3c8 | 2009-11-03 18:09:51 +0100 | [diff] [blame] | 38 | #include <media/soc_camera.h> |
| 39 | |
Valentin Longchamp | e00f0b4 | 2009-02-16 12:47:51 +0100 | [diff] [blame] | 40 | #include "devices.h" |
| 41 | |
Valentin Longchamp | 56c7a45 | 2009-04-22 10:55:50 +0200 | [diff] [blame] | 42 | static unsigned int marxbot_pins[] = { |
| 43 | /* SDHC2 */ |
| 44 | MX31_PIN_PC_PWRON__SD2_DATA3, MX31_PIN_PC_VS1__SD2_DATA2, |
| 45 | MX31_PIN_PC_READY__SD2_DATA1, MX31_PIN_PC_WAIT_B__SD2_DATA0, |
| 46 | MX31_PIN_PC_CD2_B__SD2_CLK, MX31_PIN_PC_CD1_B__SD2_CMD, |
| 47 | MX31_PIN_ATA_DIOR__GPIO3_28, MX31_PIN_ATA_DIOW__GPIO3_29, |
| 48 | /* CSI */ |
Valentin Longchamp | 56c7a45 | 2009-04-22 10:55:50 +0200 | [diff] [blame] | 49 | MX31_PIN_CSI_D6__CSI_D6, MX31_PIN_CSI_D7__CSI_D7, |
| 50 | MX31_PIN_CSI_D8__CSI_D8, MX31_PIN_CSI_D9__CSI_D9, |
| 51 | MX31_PIN_CSI_D10__CSI_D10, MX31_PIN_CSI_D11__CSI_D11, |
| 52 | MX31_PIN_CSI_D12__CSI_D12, MX31_PIN_CSI_D13__CSI_D13, |
| 53 | MX31_PIN_CSI_D14__CSI_D14, MX31_PIN_CSI_D15__CSI_D15, |
| 54 | MX31_PIN_CSI_HSYNC__CSI_HSYNC, MX31_PIN_CSI_MCLK__CSI_MCLK, |
| 55 | MX31_PIN_CSI_PIXCLK__CSI_PIXCLK, MX31_PIN_CSI_VSYNC__CSI_VSYNC, |
Valentin Longchamp | 04ea3c8 | 2009-11-03 18:09:51 +0100 | [diff] [blame] | 56 | MX31_PIN_CSI_D4__GPIO3_4, MX31_PIN_CSI_D5__GPIO3_5, |
Valentin Longchamp | 56c7a45 | 2009-04-22 10:55:50 +0200 | [diff] [blame] | 57 | MX31_PIN_GPIO3_0__GPIO3_0, MX31_PIN_GPIO3_1__GPIO3_1, |
| 58 | MX31_PIN_TXD2__GPIO1_28, |
Valentin Longchamp | 2718c15 | 2009-08-12 11:29:21 +0200 | [diff] [blame] | 59 | /* dsPIC resets */ |
| 60 | MX31_PIN_STXD5__GPIO1_21, MX31_PIN_SRXD5__GPIO1_22, |
Valentin Longchamp | 10949ff | 2009-11-03 18:09:48 +0100 | [diff] [blame] | 61 | /*battery detection */ |
| 62 | MX31_PIN_LCS0__GPIO3_23, |
Valentin Longchamp | d67d107 | 2009-11-23 19:16:37 +0100 | [diff] [blame] | 63 | /* USB H1 */ |
| 64 | MX31_PIN_CSPI1_MISO__USBH1_RXDP, MX31_PIN_CSPI1_MOSI__USBH1_RXDM, |
| 65 | MX31_PIN_CSPI1_SS0__USBH1_TXDM, MX31_PIN_CSPI1_SS1__USBH1_TXDP, |
| 66 | MX31_PIN_CSPI1_SS2__USBH1_RCV, MX31_PIN_CSPI1_SCLK__USBH1_OEB, |
| 67 | MX31_PIN_CSPI1_SPI_RDY__USBH1_FS, MX31_PIN_SFS6__USBH1_SUSPEND, |
| 68 | MX31_PIN_NFRE_B__GPIO1_11, MX31_PIN_NFALE__GPIO1_12, |
Valentin Longchamp | 56c7a45 | 2009-04-22 10:55:50 +0200 | [diff] [blame] | 69 | }; |
| 70 | |
Valentin Longchamp | 45b131a | 2009-04-21 10:24:56 +0200 | [diff] [blame] | 71 | #define SDHC2_CD IOMUX_TO_GPIO(MX31_PIN_ATA_DIOR) |
| 72 | #define SDHC2_WP IOMUX_TO_GPIO(MX31_PIN_ATA_DIOW) |
| 73 | |
| 74 | static int marxbot_sdhc2_get_ro(struct device *dev) |
| 75 | { |
Valentin Longchamp | 563abb4 | 2009-08-11 17:29:21 +0200 | [diff] [blame] | 76 | return !gpio_get_value(SDHC2_WP); |
Valentin Longchamp | 45b131a | 2009-04-21 10:24:56 +0200 | [diff] [blame] | 77 | } |
| 78 | |
| 79 | static int marxbot_sdhc2_init(struct device *dev, irq_handler_t detect_irq, |
| 80 | void *data) |
| 81 | { |
Sascha Hauer | 4f163eb | 2009-05-06 12:55:50 +0200 | [diff] [blame] | 82 | int ret; |
| 83 | |
| 84 | ret = gpio_request(SDHC2_CD, "sdhc-detect"); |
| 85 | if (ret) |
| 86 | return ret; |
| 87 | |
| 88 | gpio_direction_input(SDHC2_CD); |
| 89 | |
| 90 | ret = gpio_request(SDHC2_WP, "sdhc-wp"); |
| 91 | if (ret) |
| 92 | goto err_gpio_free; |
| 93 | gpio_direction_input(SDHC2_WP); |
| 94 | |
| 95 | ret = request_irq(gpio_to_irq(SDHC2_CD), detect_irq, |
Valentin Longchamp | 45b131a | 2009-04-21 10:24:56 +0200 | [diff] [blame] | 96 | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, |
| 97 | "sdhc2-card-detect", data); |
Sascha Hauer | 4f163eb | 2009-05-06 12:55:50 +0200 | [diff] [blame] | 98 | if (ret) |
| 99 | goto err_gpio_free_2; |
| 100 | |
| 101 | return 0; |
| 102 | |
| 103 | err_gpio_free_2: |
| 104 | gpio_free(SDHC2_WP); |
| 105 | err_gpio_free: |
| 106 | gpio_free(SDHC2_CD); |
| 107 | |
| 108 | return ret; |
Valentin Longchamp | 45b131a | 2009-04-21 10:24:56 +0200 | [diff] [blame] | 109 | } |
| 110 | |
| 111 | static void marxbot_sdhc2_exit(struct device *dev, void *data) |
| 112 | { |
| 113 | free_irq(gpio_to_irq(SDHC2_CD), data); |
Sascha Hauer | 4f163eb | 2009-05-06 12:55:50 +0200 | [diff] [blame] | 114 | gpio_free(SDHC2_WP); |
| 115 | gpio_free(SDHC2_CD); |
Valentin Longchamp | 45b131a | 2009-04-21 10:24:56 +0200 | [diff] [blame] | 116 | } |
| 117 | |
| 118 | static struct imxmmc_platform_data sdhc2_pdata = { |
| 119 | .get_ro = marxbot_sdhc2_get_ro, |
| 120 | .init = marxbot_sdhc2_init, |
| 121 | .exit = marxbot_sdhc2_exit, |
| 122 | }; |
| 123 | |
Valentin Longchamp | 2718c15 | 2009-08-12 11:29:21 +0200 | [diff] [blame] | 124 | #define TRSLAT_RST_B IOMUX_TO_GPIO(MX31_PIN_STXD5) |
| 125 | #define DSPICS_RST_B IOMUX_TO_GPIO(MX31_PIN_SRXD5) |
| 126 | |
| 127 | static void dspics_resets_init(void) |
| 128 | { |
| 129 | if (!gpio_request(TRSLAT_RST_B, "translator-rst")) { |
| 130 | gpio_direction_output(TRSLAT_RST_B, 1); |
| 131 | gpio_export(TRSLAT_RST_B, false); |
| 132 | } |
| 133 | |
| 134 | if (!gpio_request(DSPICS_RST_B, "dspics-rst")) { |
| 135 | gpio_direction_output(DSPICS_RST_B, 1); |
| 136 | gpio_export(DSPICS_RST_B, false); |
| 137 | } |
| 138 | } |
| 139 | |
Valentin Longchamp | 33c4d91 | 2009-11-23 19:16:36 +0100 | [diff] [blame] | 140 | static struct spi_board_info marxbot_spi_board_info[] __initdata = { |
| 141 | { |
| 142 | .modalias = "spidev", |
| 143 | .max_speed_hz = 300000, |
| 144 | .bus_num = 1, |
| 145 | .chip_select = 1, /* according spi1_cs[] ! */ |
| 146 | }, |
| 147 | }; |
| 148 | |
Valentin Longchamp | 04ea3c8 | 2009-11-03 18:09:51 +0100 | [diff] [blame] | 149 | #define TURRETCAM_POWER IOMUX_TO_GPIO(MX31_PIN_GPIO3_1) |
| 150 | #define BASECAM_POWER IOMUX_TO_GPIO(MX31_PIN_CSI_D5) |
| 151 | #define TURRETCAM_RST_B IOMUX_TO_GPIO(MX31_PIN_GPIO3_0) |
| 152 | #define BASECAM_RST_B IOMUX_TO_GPIO(MX31_PIN_CSI_D4) |
| 153 | #define CAM_CHOICE IOMUX_TO_GPIO(MX31_PIN_TXD2) |
| 154 | |
| 155 | static int marxbot_basecam_power(struct device *dev, int on) |
| 156 | { |
| 157 | gpio_set_value(BASECAM_POWER, !on); |
| 158 | return 0; |
| 159 | } |
| 160 | |
| 161 | static int marxbot_basecam_reset(struct device *dev) |
| 162 | { |
| 163 | gpio_set_value(BASECAM_RST_B, 0); |
| 164 | udelay(100); |
| 165 | gpio_set_value(BASECAM_RST_B, 1); |
| 166 | return 0; |
| 167 | } |
| 168 | |
| 169 | static struct i2c_board_info marxbot_i2c_devices[] = { |
| 170 | { |
| 171 | I2C_BOARD_INFO("mt9t031", 0x5d), |
| 172 | }, |
| 173 | }; |
| 174 | |
| 175 | static struct soc_camera_link base_iclink = { |
| 176 | .bus_id = 0, /* Must match with the camera ID */ |
| 177 | .power = marxbot_basecam_power, |
| 178 | .reset = marxbot_basecam_reset, |
| 179 | .board_info = &marxbot_i2c_devices[0], |
| 180 | .i2c_adapter_id = 0, |
| 181 | .module_name = "mt9t031", |
| 182 | }; |
| 183 | |
| 184 | static struct platform_device marxbot_camera[] = { |
| 185 | { |
| 186 | .name = "soc-camera-pdrv", |
| 187 | .id = 0, |
| 188 | .dev = { |
| 189 | .platform_data = &base_iclink, |
| 190 | }, |
| 191 | }, |
| 192 | }; |
| 193 | |
| 194 | static struct platform_device *marxbot_cameras[] __initdata = { |
| 195 | &marxbot_camera[0], |
| 196 | }; |
| 197 | |
| 198 | static int __init marxbot_cam_init(void) |
| 199 | { |
| 200 | int ret = gpio_request(CAM_CHOICE, "cam-choice"); |
| 201 | if (ret) |
| 202 | return ret; |
| 203 | gpio_direction_output(CAM_CHOICE, 1); |
| 204 | |
| 205 | ret = gpio_request(BASECAM_RST_B, "basecam-reset"); |
| 206 | if (ret) |
| 207 | return ret; |
| 208 | gpio_direction_output(BASECAM_RST_B, 1); |
| 209 | ret = gpio_request(BASECAM_POWER, "basecam-standby"); |
| 210 | if (ret) |
| 211 | return ret; |
| 212 | gpio_direction_output(BASECAM_POWER, 0); |
| 213 | |
| 214 | ret = gpio_request(TURRETCAM_RST_B, "turretcam-reset"); |
| 215 | if (ret) |
| 216 | return ret; |
| 217 | gpio_direction_output(TURRETCAM_RST_B, 1); |
| 218 | ret = gpio_request(TURRETCAM_POWER, "turretcam-standby"); |
| 219 | if (ret) |
| 220 | return ret; |
| 221 | gpio_direction_output(TURRETCAM_POWER, 0); |
| 222 | |
| 223 | return 0; |
| 224 | } |
| 225 | |
Valentin Longchamp | d67d107 | 2009-11-23 19:16:37 +0100 | [diff] [blame] | 226 | #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \ |
| 227 | PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU) |
| 228 | |
| 229 | static int marxbot_usbh1_hw_init(struct platform_device *pdev) |
| 230 | { |
| 231 | mxc_iomux_set_gpr(MUX_PGP_USB_SUSPEND, true); |
| 232 | |
| 233 | mxc_iomux_set_pad(MX31_PIN_CSPI1_MISO, USB_PAD_CFG); |
| 234 | mxc_iomux_set_pad(MX31_PIN_CSPI1_MOSI, USB_PAD_CFG); |
| 235 | mxc_iomux_set_pad(MX31_PIN_CSPI1_SS0, USB_PAD_CFG); |
| 236 | mxc_iomux_set_pad(MX31_PIN_CSPI1_SS1, USB_PAD_CFG); |
| 237 | mxc_iomux_set_pad(MX31_PIN_CSPI1_SS2, USB_PAD_CFG); |
| 238 | mxc_iomux_set_pad(MX31_PIN_CSPI1_SCLK, USB_PAD_CFG); |
| 239 | mxc_iomux_set_pad(MX31_PIN_CSPI1_SPI_RDY, USB_PAD_CFG); |
| 240 | mxc_iomux_set_pad(MX31_PIN_SFS6, USB_PAD_CFG); |
| 241 | |
| 242 | return 0; |
| 243 | } |
| 244 | |
| 245 | #define USBH1_VBUSEN_B IOMUX_TO_GPIO(MX31_PIN_NFRE_B) |
| 246 | #define USBH1_MODE IOMUX_TO_GPIO(MX31_PIN_NFALE) |
| 247 | |
| 248 | static int marxbot_isp1105_init(struct otg_transceiver *otg) |
| 249 | { |
| 250 | int ret = gpio_request(USBH1_MODE, "usbh1-mode"); |
| 251 | if (ret) |
| 252 | return ret; |
| 253 | /* single ended */ |
| 254 | gpio_direction_output(USBH1_MODE, 0); |
| 255 | |
| 256 | ret = gpio_request(USBH1_VBUSEN_B, "usbh1-vbusen"); |
| 257 | if (ret) { |
| 258 | gpio_free(USBH1_MODE); |
| 259 | return ret; |
| 260 | } |
| 261 | gpio_direction_output(USBH1_VBUSEN_B, 1); |
| 262 | |
| 263 | return 0; |
| 264 | } |
| 265 | |
| 266 | |
| 267 | static int marxbot_isp1105_set_vbus(struct otg_transceiver *otg, bool on) |
| 268 | { |
| 269 | if (on) |
| 270 | gpio_set_value(USBH1_VBUSEN_B, 0); |
| 271 | else |
| 272 | gpio_set_value(USBH1_VBUSEN_B, 1); |
| 273 | |
| 274 | return 0; |
| 275 | } |
| 276 | |
| 277 | static struct mxc_usbh_platform_data usbh1_pdata = { |
| 278 | .init = marxbot_usbh1_hw_init, |
| 279 | .portsc = MXC_EHCI_MODE_UTMI | MXC_EHCI_SERIAL, |
| 280 | .flags = MXC_EHCI_POWER_PINS_ENABLED | MXC_EHCI_INTERFACE_SINGLE_UNI, |
| 281 | }; |
| 282 | |
| 283 | static int __init marxbot_usbh1_init(void) |
| 284 | { |
| 285 | struct otg_transceiver *otg; |
| 286 | |
| 287 | otg = kzalloc(sizeof(*otg), GFP_KERNEL); |
| 288 | if (!otg) |
| 289 | return -ENOMEM; |
| 290 | |
| 291 | otg->label = "ISP1105"; |
| 292 | otg->init = marxbot_isp1105_init; |
| 293 | otg->set_vbus = marxbot_isp1105_set_vbus; |
| 294 | |
| 295 | usbh1_pdata.otg = otg; |
| 296 | |
Valentin Longchamp | 4c21186 | 2009-12-04 16:50:29 +0100 | [diff] [blame] | 297 | return mxc_register_device(&mxc_usbh1, &usbh1_pdata); |
Valentin Longchamp | d67d107 | 2009-11-23 19:16:37 +0100 | [diff] [blame] | 298 | } |
| 299 | |
Valentin Longchamp | e00f0b4 | 2009-02-16 12:47:51 +0100 | [diff] [blame] | 300 | /* |
| 301 | * system init for baseboard usage. Will be called by mx31moboard init. |
| 302 | */ |
| 303 | void __init mx31moboard_marxbot_init(void) |
| 304 | { |
| 305 | printk(KERN_INFO "Initializing mx31marxbot peripherals\n"); |
Valentin Longchamp | 56c7a45 | 2009-04-22 10:55:50 +0200 | [diff] [blame] | 306 | |
| 307 | mxc_iomux_setup_multiple_pins(marxbot_pins, ARRAY_SIZE(marxbot_pins), |
| 308 | "marxbot"); |
Valentin Longchamp | 45b131a | 2009-04-21 10:24:56 +0200 | [diff] [blame] | 309 | |
Valentin Longchamp | 2718c15 | 2009-08-12 11:29:21 +0200 | [diff] [blame] | 310 | dspics_resets_init(); |
| 311 | |
Valentin Longchamp | 45b131a | 2009-04-21 10:24:56 +0200 | [diff] [blame] | 312 | mxc_register_device(&mxcsdhc_device1, &sdhc2_pdata); |
Valentin Longchamp | 10949ff | 2009-11-03 18:09:48 +0100 | [diff] [blame] | 313 | |
Valentin Longchamp | 33c4d91 | 2009-11-23 19:16:36 +0100 | [diff] [blame] | 314 | spi_register_board_info(marxbot_spi_board_info, |
| 315 | ARRAY_SIZE(marxbot_spi_board_info)); |
| 316 | |
Valentin Longchamp | 04ea3c8 | 2009-11-03 18:09:51 +0100 | [diff] [blame] | 317 | marxbot_cam_init(); |
| 318 | platform_add_devices(marxbot_cameras, ARRAY_SIZE(marxbot_cameras)); |
| 319 | |
Valentin Longchamp | 10949ff | 2009-11-03 18:09:48 +0100 | [diff] [blame] | 320 | /* battery present pin */ |
| 321 | gpio_request(IOMUX_TO_GPIO(MX31_PIN_LCS0), "bat-present"); |
| 322 | gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_LCS0)); |
| 323 | gpio_export(IOMUX_TO_GPIO(MX31_PIN_LCS0), false); |
Valentin Longchamp | d67d107 | 2009-11-23 19:16:37 +0100 | [diff] [blame] | 324 | |
| 325 | marxbot_usbh1_init(); |
Valentin Longchamp | e00f0b4 | 2009-02-16 12:47:51 +0100 | [diff] [blame] | 326 | } |