arch/arm/mach-mx3/mx31moboard-marxbot.c

   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
  19 #include <linux/delay.h>
  20 #include <linux/gpio.h>
  21 #include <linux/init.h>
  22 #include <linux/interrupt.h>
  23 #include <linux/i2c.h>
  24 #include <linux/spi/spi.h>
  25 #include <linux/platform_device.h>
  26 #include <linux/types.h>
  27
  28 #include <linux/usb/otg.h>
  29
  30 #include <mach/common.h>
  31 #include <mach/hardware.h>
  32 #include <mach/imx-uart.h>
  33 #include <mach/iomux-mx3.h>
  34 #include <mach/mmc.h>
  35 #include <mach/mxc_ehci.h>
  36 #include <mach/ulpi.h>
  37
  38 #include <media/soc_camera.h>
  39
  40 #include "devices.h"
  41
  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 */
  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,
  56         MX31_PIN_CSI_D4__GPIO3_4, MX31_PIN_CSI_D5__GPIO3_5,
  57         MX31_PIN_GPIO3_0__GPIO3_0, MX31_PIN_GPIO3_1__GPIO3_1,
  58         MX31_PIN_TXD2__GPIO1_28,
  59         /* dsPIC resets */
  60         MX31_PIN_STXD5__GPIO1_21, MX31_PIN_SRXD5__GPIO1_22,
  61         /*battery detection */
  62         MX31_PIN_LCS0__GPIO3_23,
  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,
  69 };
  70
  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 {
  76         return !gpio_get_value(SDHC2_WP);
  77 }
  78
  79 static int marxbot_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
  80                 void *data)
  81 {
  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,
  96                 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
  97                 "sdhc2-card-detect", data);
  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;
 109 }
 110
 111 static void marxbot_sdhc2_exit(struct device *dev, void *data)
 112 {
 113         free_irq(gpio_to_irq(SDHC2_CD), data);
 114         gpio_free(SDHC2_WP);
 115         gpio_free(SDHC2_CD);
 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
 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, 0);
 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, 0);
 136                 gpio_export(DSPICS_RST_B, false);
 137         }
 138 }
 139
 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
 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, 0);
 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
 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
 297         return mxc_register_device(&mxc_usbh1, &usbh1_pdata);
 298 }
 299
 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");
 306
 307         mxc_iomux_setup_multiple_pins(marxbot_pins, ARRAY_SIZE(marxbot_pins),
 308                 "marxbot");
 309
 310         dspics_resets_init();
 311
 312         mxc_register_device(&mxcsdhc_device1, &sdhc2_pdata);
 313
 314         spi_register_board_info(marxbot_spi_board_info,
 315                 ARRAY_SIZE(marxbot_spi_board_info));
 316
 317         marxbot_cam_init();
 318         platform_add_devices(marxbot_cameras, ARRAY_SIZE(marxbot_cameras));
 319
 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);
 324
 325         marxbot_usbh1_init();
 326 }