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
  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/spi/spi.h>
  21 #include <linux/slab.h>
  22 #include <linux/platform_device.h>
  23 #include <linux/types.h>
  24
  25 #include <linux/usb/otg.h>
  26
  27 #include <mach/common.h>
  28 #include <mach/hardware.h>
  29 #include <mach/imx-uart.h>
  30 #include <mach/iomux-mx3.h>
  31 #include <mach/ulpi.h>
  32
  33 #include <media/soc_camera.h>
  34
  35 #include "devices-imx31.h"
  36 #include "devices.h"
  37
  38 static unsigned int marxbot_pins[] = {
  39         /* SDHC2 */
  40         MX31_PIN_PC_PWRON__SD2_DATA3, MX31_PIN_PC_VS1__SD2_DATA2,
  41         MX31_PIN_PC_READY__SD2_DATA1, MX31_PIN_PC_WAIT_B__SD2_DATA0,
  42         MX31_PIN_PC_CD2_B__SD2_CLK, MX31_PIN_PC_CD1_B__SD2_CMD,
  43         MX31_PIN_ATA_DIOR__GPIO3_28, MX31_PIN_ATA_DIOW__GPIO3_29,
  44         /* CSI */
  45         MX31_PIN_CSI_D6__CSI_D6, MX31_PIN_CSI_D7__CSI_D7,
  46         MX31_PIN_CSI_D8__CSI_D8, MX31_PIN_CSI_D9__CSI_D9,
  47         MX31_PIN_CSI_D10__CSI_D10, MX31_PIN_CSI_D11__CSI_D11,
  48         MX31_PIN_CSI_D12__CSI_D12, MX31_PIN_CSI_D13__CSI_D13,
  49         MX31_PIN_CSI_D14__CSI_D14, MX31_PIN_CSI_D15__CSI_D15,
  50         MX31_PIN_CSI_HSYNC__CSI_HSYNC, MX31_PIN_CSI_MCLK__CSI_MCLK,
  51         MX31_PIN_CSI_PIXCLK__CSI_PIXCLK, MX31_PIN_CSI_VSYNC__CSI_VSYNC,
  52         MX31_PIN_CSI_D4__GPIO3_4, MX31_PIN_CSI_D5__GPIO3_5,
  53         MX31_PIN_GPIO3_0__GPIO3_0, MX31_PIN_GPIO3_1__GPIO3_1,
  54         MX31_PIN_TXD2__GPIO1_28,
  55         /* dsPIC resets */
  56         MX31_PIN_STXD5__GPIO1_21, MX31_PIN_SRXD5__GPIO1_22,
  57         /*battery detection */
  58         MX31_PIN_LCS0__GPIO3_23,
  59         /* USB H1 */
  60         MX31_PIN_CSPI1_MISO__USBH1_RXDP, MX31_PIN_CSPI1_MOSI__USBH1_RXDM,
  61         MX31_PIN_CSPI1_SS0__USBH1_TXDM, MX31_PIN_CSPI1_SS1__USBH1_TXDP,
  62         MX31_PIN_CSPI1_SS2__USBH1_RCV, MX31_PIN_CSPI1_SCLK__USBH1_OEB,
  63         MX31_PIN_CSPI1_SPI_RDY__USBH1_FS, MX31_PIN_SFS6__USBH1_SUSPEND,
  64         MX31_PIN_NFRE_B__GPIO1_11, MX31_PIN_NFALE__GPIO1_12,
  65         /* SEL */
  66         MX31_PIN_DTR_DCE1__GPIO2_8, MX31_PIN_DSR_DCE1__GPIO2_9,
  67         MX31_PIN_RI_DCE1__GPIO2_10, MX31_PIN_DCD_DCE1__GPIO2_11,
  68 };
  69
  70 #define SDHC2_CD IOMUX_TO_GPIO(MX31_PIN_ATA_DIOR)
  71 #define SDHC2_WP IOMUX_TO_GPIO(MX31_PIN_ATA_DIOW)
  72
  73 static int marxbot_sdhc2_get_ro(struct device *dev)
  74 {
  75         return !gpio_get_value(SDHC2_WP);
  76 }
  77
  78 static int marxbot_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
  79                 void *data)
  80 {
  81         int ret;
  82
  83         ret = gpio_request(SDHC2_CD, "sdhc-detect");
  84         if (ret)
  85                 return ret;
  86
  87         gpio_direction_input(SDHC2_CD);
  88
  89         ret = gpio_request(SDHC2_WP, "sdhc-wp");
  90         if (ret)
  91                 goto err_gpio_free;
  92         gpio_direction_input(SDHC2_WP);
  93
  94         ret = request_irq(gpio_to_irq(SDHC2_CD), detect_irq,
  95                 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
  96                 "sdhc2-card-detect", data);
  97         if (ret)
  98                 goto err_gpio_free_2;
  99
 100         return 0;
 101
 102 err_gpio_free_2:
 103         gpio_free(SDHC2_WP);
 104 err_gpio_free:
 105         gpio_free(SDHC2_CD);
 106
 107         return ret;
 108 }
 109
 110 static void marxbot_sdhc2_exit(struct device *dev, void *data)
 111 {
 112         free_irq(gpio_to_irq(SDHC2_CD), data);
 113         gpio_free(SDHC2_WP);
 114         gpio_free(SDHC2_CD);
 115 }
 116
 117 static const struct imxmmc_platform_data sdhc2_pdata __initconst = {
 118         .get_ro = marxbot_sdhc2_get_ro,
 119         .init   = marxbot_sdhc2_init,
 120         .exit   = marxbot_sdhc2_exit,
 121 };
 122
 123 #define TRSLAT_RST_B    IOMUX_TO_GPIO(MX31_PIN_STXD5)
 124 #define DSPICS_RST_B    IOMUX_TO_GPIO(MX31_PIN_SRXD5)
 125
 126 static void dspics_resets_init(void)
 127 {
 128         if (!gpio_request(TRSLAT_RST_B, "translator-rst")) {
 129                 gpio_direction_output(TRSLAT_RST_B, 0);
 130                 gpio_export(TRSLAT_RST_B, false);
 131         }
 132
 133         if (!gpio_request(DSPICS_RST_B, "dspics-rst")) {
 134                 gpio_direction_output(DSPICS_RST_B, 0);
 135                 gpio_export(DSPICS_RST_B, false);
 136         }
 137 }
 138
 139 static struct spi_board_info marxbot_spi_board_info[] __initdata = {
 140         {
 141                 .modalias = "spidev",
 142                 .max_speed_hz = 300000,
 143                 .bus_num = 1,
 144                 .chip_select = 1, /* according spi1_cs[] ! */
 145         },
 146 };
 147
 148 #define TURRETCAM_POWER IOMUX_TO_GPIO(MX31_PIN_GPIO3_1)
 149 #define BASECAM_POWER   IOMUX_TO_GPIO(MX31_PIN_CSI_D5)
 150 #define TURRETCAM_RST_B IOMUX_TO_GPIO(MX31_PIN_GPIO3_0)
 151 #define BASECAM_RST_B   IOMUX_TO_GPIO(MX31_PIN_CSI_D4)
 152 #define CAM_CHOICE      IOMUX_TO_GPIO(MX31_PIN_TXD2)
 153
 154 static int marxbot_basecam_power(struct device *dev, int on)
 155 {
 156         gpio_set_value(BASECAM_POWER, !on);
 157         return 0;
 158 }
 159
 160 static int marxbot_basecam_reset(struct device *dev)
 161 {
 162         gpio_set_value(BASECAM_RST_B, 0);
 163         udelay(100);
 164         gpio_set_value(BASECAM_RST_B, 1);
 165         return 0;
 166 }
 167
 168 static struct i2c_board_info marxbot_i2c_devices[] = {
 169         {
 170                 I2C_BOARD_INFO("mt9t031", 0x5d),
 171         },
 172 };
 173
 174 static struct soc_camera_link base_iclink = {
 175         .bus_id         = 0,            /* Must match with the camera ID */
 176         .power          = marxbot_basecam_power,
 177         .reset          = marxbot_basecam_reset,
 178         .board_info     = &marxbot_i2c_devices[0],
 179         .i2c_adapter_id = 0,
 180 };
 181
 182 static struct platform_device marxbot_camera[] = {
 183         {
 184                 .name   = "soc-camera-pdrv",
 185                 .id     = 0,
 186                 .dev    = {
 187                         .platform_data = &base_iclink,
 188                 },
 189         },
 190 };
 191
 192 static struct platform_device *marxbot_cameras[] __initdata = {
 193         &marxbot_camera[0],
 194 };
 195
 196 static int __init marxbot_cam_init(void)
 197 {
 198         int ret = gpio_request(CAM_CHOICE, "cam-choice");
 199         if (ret)
 200                 return ret;
 201         gpio_direction_output(CAM_CHOICE, 0);
 202
 203         ret = gpio_request(BASECAM_RST_B, "basecam-reset");
 204         if (ret)
 205                 return ret;
 206         gpio_direction_output(BASECAM_RST_B, 1);
 207         ret = gpio_request(BASECAM_POWER, "basecam-standby");
 208         if (ret)
 209                 return ret;
 210         gpio_direction_output(BASECAM_POWER, 0);
 211
 212         ret = gpio_request(TURRETCAM_RST_B, "turretcam-reset");
 213         if (ret)
 214                 return ret;
 215         gpio_direction_output(TURRETCAM_RST_B, 1);
 216         ret = gpio_request(TURRETCAM_POWER, "turretcam-standby");
 217         if (ret)
 218                 return ret;
 219         gpio_direction_output(TURRETCAM_POWER, 0);
 220
 221         return 0;
 222 }
 223
 224 #define SEL0 IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1)
 225 #define SEL1 IOMUX_TO_GPIO(MX31_PIN_DSR_DCE1)
 226 #define SEL2 IOMUX_TO_GPIO(MX31_PIN_RI_DCE1)
 227 #define SEL3 IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1)
 228
 229 static void marxbot_init_sel_gpios(void)
 230 {
 231         if (!gpio_request(SEL0, "sel0")) {
 232                 gpio_direction_input(SEL0);
 233                 gpio_export(SEL0, true);
 234         }
 235
 236         if (!gpio_request(SEL1, "sel1")) {
 237                 gpio_direction_input(SEL1);
 238                 gpio_export(SEL1, true);
 239         }
 240
 241         if (!gpio_request(SEL2, "sel2")) {
 242                 gpio_direction_input(SEL2);
 243                 gpio_export(SEL2, true);
 244         }
 245
 246         if (!gpio_request(SEL3, "sel3")) {
 247                 gpio_direction_input(SEL3);
 248                 gpio_export(SEL3, true);
 249         }
 250 }
 251
 252 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
 253                         PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
 254
 255 static int marxbot_usbh1_hw_init(struct platform_device *pdev)
 256 {
 257         mxc_iomux_set_gpr(MUX_PGP_USB_SUSPEND, true);
 258
 259         mxc_iomux_set_pad(MX31_PIN_CSPI1_MISO, USB_PAD_CFG);
 260         mxc_iomux_set_pad(MX31_PIN_CSPI1_MOSI, USB_PAD_CFG);
 261         mxc_iomux_set_pad(MX31_PIN_CSPI1_SS0, USB_PAD_CFG);
 262         mxc_iomux_set_pad(MX31_PIN_CSPI1_SS1, USB_PAD_CFG);
 263         mxc_iomux_set_pad(MX31_PIN_CSPI1_SS2, USB_PAD_CFG);
 264         mxc_iomux_set_pad(MX31_PIN_CSPI1_SCLK, USB_PAD_CFG);
 265         mxc_iomux_set_pad(MX31_PIN_CSPI1_SPI_RDY, USB_PAD_CFG);
 266         mxc_iomux_set_pad(MX31_PIN_SFS6, USB_PAD_CFG);
 267
 268         mdelay(10);
 269
 270         return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED |
 271                         MXC_EHCI_INTERFACE_SINGLE_UNI);
 272 }
 273
 274 #define USBH1_VBUSEN_B  IOMUX_TO_GPIO(MX31_PIN_NFRE_B)
 275 #define USBH1_MODE      IOMUX_TO_GPIO(MX31_PIN_NFALE)
 276
 277 static int marxbot_isp1105_init(struct otg_transceiver *otg)
 278 {
 279         int ret = gpio_request(USBH1_MODE, "usbh1-mode");
 280         if (ret)
 281                 return ret;
 282         /* single ended */
 283         gpio_direction_output(USBH1_MODE, 0);
 284
 285         ret = gpio_request(USBH1_VBUSEN_B, "usbh1-vbusen");
 286         if (ret) {
 287                 gpio_free(USBH1_MODE);
 288                 return ret;
 289         }
 290         gpio_direction_output(USBH1_VBUSEN_B, 1);
 291
 292         return 0;
 293 }
 294
 295
 296 static int marxbot_isp1105_set_vbus(struct otg_transceiver *otg, bool on)
 297 {
 298         if (on)
 299                 gpio_set_value(USBH1_VBUSEN_B, 0);
 300         else
 301                 gpio_set_value(USBH1_VBUSEN_B, 1);
 302
 303         return 0;
 304 }
 305
 306 static struct mxc_usbh_platform_data usbh1_pdata __initdata = {
 307         .init   = marxbot_usbh1_hw_init,
 308         .portsc = MXC_EHCI_MODE_UTMI | MXC_EHCI_SERIAL,
 309 };
 310
 311 static int __init marxbot_usbh1_init(void)
 312 {
 313         struct otg_transceiver *otg;
 314         struct platform_device *pdev;
 315
 316         otg = kzalloc(sizeof(*otg), GFP_KERNEL);
 317         if (!otg)
 318                 return -ENOMEM;
 319
 320         otg->label      = "ISP1105";
 321         otg->init       = marxbot_isp1105_init;
 322         otg->set_vbus   = marxbot_isp1105_set_vbus;
 323
 324         usbh1_pdata.otg = otg;
 325
 326         pdev = imx31_add_mxc_ehci_hs(1, &usbh1_pdata);
 327         if (IS_ERR(pdev))
 328                 return PTR_ERR(pdev);
 329
 330         return 0;
 331 }
 332
 333 static const struct fsl_usb2_platform_data usb_pdata __initconst = {
 334         .operating_mode = FSL_USB2_DR_DEVICE,
 335         .phy_mode       = FSL_USB2_PHY_ULPI,
 336 };
 337
 338 /*
 339  * system init for baseboard usage. Will be called by mx31moboard init.
 340  */
 341 void __init mx31moboard_marxbot_init(void)
 342 {
 343         printk(KERN_INFO "Initializing mx31marxbot peripherals\n");
 344
 345         mxc_iomux_setup_multiple_pins(marxbot_pins, ARRAY_SIZE(marxbot_pins),
 346                 "marxbot");
 347
 348         marxbot_init_sel_gpios();
 349
 350         dspics_resets_init();
 351
 352         imx31_add_mxc_mmc(1, &sdhc2_pdata);
 353
 354         spi_register_board_info(marxbot_spi_board_info,
 355                 ARRAY_SIZE(marxbot_spi_board_info));
 356
 357         marxbot_cam_init();
 358         platform_add_devices(marxbot_cameras, ARRAY_SIZE(marxbot_cameras));
 359
 360         /* battery present pin */
 361         gpio_request(IOMUX_TO_GPIO(MX31_PIN_LCS0), "bat-present");
 362         gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_LCS0));
 363         gpio_export(IOMUX_TO_GPIO(MX31_PIN_LCS0), false);
 364
 365         imx31_add_fsl_usb2_udc(&usb_pdata);
 366
 367         marxbot_usbh1_init();
 368 }