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#include <linux/fsl_devices.h> 25 26#include <linux/usb/otg.h> 27 28#include <mach/common.h> 29#include <mach/hardware.h> 30#include <mach/imx-uart.h> 31#include <mach/iomux-mx3.h> 32#include <mach/mmc.h> 33#include <mach/mxc_ehci.h> 34#include <mach/ulpi.h> 35 36#include <media/soc_camera.h> 37 38#include "devices.h" 39 40static unsigned int marxbot_pins[] = { 41 /* SDHC2 */ 42 MX31_PIN_PC_PWRON__SD2_DATA3, MX31_PIN_PC_VS1__SD2_DATA2, 43 MX31_PIN_PC_READY__SD2_DATA1, MX31_PIN_PC_WAIT_B__SD2_DATA0, 44 MX31_PIN_PC_CD2_B__SD2_CLK, MX31_PIN_PC_CD1_B__SD2_CMD, 45 MX31_PIN_ATA_DIOR__GPIO3_28, MX31_PIN_ATA_DIOW__GPIO3_29, 46 /* CSI */ 47 MX31_PIN_CSI_D6__CSI_D6, MX31_PIN_CSI_D7__CSI_D7, 48 MX31_PIN_CSI_D8__CSI_D8, MX31_PIN_CSI_D9__CSI_D9, 49 MX31_PIN_CSI_D10__CSI_D10, MX31_PIN_CSI_D11__CSI_D11, 50 MX31_PIN_CSI_D12__CSI_D12, MX31_PIN_CSI_D13__CSI_D13, 51 MX31_PIN_CSI_D14__CSI_D14, MX31_PIN_CSI_D15__CSI_D15, 52 MX31_PIN_CSI_HSYNC__CSI_HSYNC, MX31_PIN_CSI_MCLK__CSI_MCLK, 53 MX31_PIN_CSI_PIXCLK__CSI_PIXCLK, MX31_PIN_CSI_VSYNC__CSI_VSYNC, 54 MX31_PIN_CSI_D4__GPIO3_4, MX31_PIN_CSI_D5__GPIO3_5, 55 MX31_PIN_GPIO3_0__GPIO3_0, MX31_PIN_GPIO3_1__GPIO3_1, 56 MX31_PIN_TXD2__GPIO1_28, 57 /* dsPIC resets */ 58 MX31_PIN_STXD5__GPIO1_21, MX31_PIN_SRXD5__GPIO1_22, 59 /*battery detection */ 60 MX31_PIN_LCS0__GPIO3_23, 61 /* USB H1 */ 62 MX31_PIN_CSPI1_MISO__USBH1_RXDP, MX31_PIN_CSPI1_MOSI__USBH1_RXDM, 63 MX31_PIN_CSPI1_SS0__USBH1_TXDM, MX31_PIN_CSPI1_SS1__USBH1_TXDP, 64 MX31_PIN_CSPI1_SS2__USBH1_RCV, MX31_PIN_CSPI1_SCLK__USBH1_OEB, 65 MX31_PIN_CSPI1_SPI_RDY__USBH1_FS, MX31_PIN_SFS6__USBH1_SUSPEND, 66 MX31_PIN_NFRE_B__GPIO1_11, MX31_PIN_NFALE__GPIO1_12, 67 /* SEL */ 68 MX31_PIN_DTR_DCE1__GPIO2_8, MX31_PIN_DSR_DCE1__GPIO2_9, 69 MX31_PIN_RI_DCE1__GPIO2_10, MX31_PIN_DCD_DCE1__GPIO2_11, 70}; 71 72#define SDHC2_CD IOMUX_TO_GPIO(MX31_PIN_ATA_DIOR) 73#define SDHC2_WP IOMUX_TO_GPIO(MX31_PIN_ATA_DIOW) 74 75static int marxbot_sdhc2_get_ro(struct device *dev) 76{ 77 return !gpio_get_value(SDHC2_WP); 78} 79 80static int marxbot_sdhc2_init(struct device *dev, irq_handler_t detect_irq, 81 void *data) 82{ 83 int ret; 84 85 ret = gpio_request(SDHC2_CD, "sdhc-detect"); 86 if (ret) 87 return ret; 88 89 gpio_direction_input(SDHC2_CD); 90 91 ret = gpio_request(SDHC2_WP, "sdhc-wp"); 92 if (ret) 93 goto err_gpio_free; 94 gpio_direction_input(SDHC2_WP); 95 96 ret = request_irq(gpio_to_irq(SDHC2_CD), detect_irq, 97 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, 98 "sdhc2-card-detect", data); 99 if (ret) 100 goto err_gpio_free_2; 101 102 return 0; 103 104err_gpio_free_2: 105 gpio_free(SDHC2_WP); 106err_gpio_free: 107 gpio_free(SDHC2_CD); 108 109 return ret; 110} 111 112static void marxbot_sdhc2_exit(struct device *dev, void *data) 113{ 114 free_irq(gpio_to_irq(SDHC2_CD), data); 115 gpio_free(SDHC2_WP); 116 gpio_free(SDHC2_CD); 117} 118 119static struct imxmmc_platform_data sdhc2_pdata = { 120 .get_ro = marxbot_sdhc2_get_ro, 121 .init = marxbot_sdhc2_init, 122 .exit = marxbot_sdhc2_exit, 123}; 124 125#define TRSLAT_RST_B IOMUX_TO_GPIO(MX31_PIN_STXD5) 126#define DSPICS_RST_B IOMUX_TO_GPIO(MX31_PIN_SRXD5) 127 128static void dspics_resets_init(void) 129{ 130 if (!gpio_request(TRSLAT_RST_B, "translator-rst")) { 131 gpio_direction_output(TRSLAT_RST_B, 0); 132 gpio_export(TRSLAT_RST_B, false); 133 } 134 135 if (!gpio_request(DSPICS_RST_B, "dspics-rst")) { 136 gpio_direction_output(DSPICS_RST_B, 0); 137 gpio_export(DSPICS_RST_B, false); 138 } 139} 140 141static struct spi_board_info marxbot_spi_board_info[] __initdata = { 142 { 143 .modalias = "spidev", 144 .max_speed_hz = 300000, 145 .bus_num = 1, 146 .chip_select = 1, /* according spi1_cs[] ! */ 147 }, 148}; 149 150#define TURRETCAM_POWER IOMUX_TO_GPIO(MX31_PIN_GPIO3_1) 151#define BASECAM_POWER IOMUX_TO_GPIO(MX31_PIN_CSI_D5) 152#define TURRETCAM_RST_B IOMUX_TO_GPIO(MX31_PIN_GPIO3_0) 153#define BASECAM_RST_B IOMUX_TO_GPIO(MX31_PIN_CSI_D4) 154#define CAM_CHOICE IOMUX_TO_GPIO(MX31_PIN_TXD2) 155 156static int marxbot_basecam_power(struct device *dev, int on) 157{ 158 gpio_set_value(BASECAM_POWER, !on); 159 return 0; 160} 161 162static int marxbot_basecam_reset(struct device *dev) 163{ 164 gpio_set_value(BASECAM_RST_B, 0); 165 udelay(100); 166 gpio_set_value(BASECAM_RST_B, 1); 167 return 0; 168} 169 170static struct i2c_board_info marxbot_i2c_devices[] = { 171 { 172 I2C_BOARD_INFO("mt9t031", 0x5d), 173 }, 174}; 175 176static struct soc_camera_link base_iclink = { 177 .bus_id = 0, /* Must match with the camera ID */ 178 .power = marxbot_basecam_power, 179 .reset = marxbot_basecam_reset, 180 .board_info = &marxbot_i2c_devices[0], 181 .i2c_adapter_id = 0, 182 .module_name = "mt9t031", 183}; 184 185static struct platform_device marxbot_camera[] = { 186 { 187 .name = "soc-camera-pdrv", 188 .id = 0, 189 .dev = { 190 .platform_data = &base_iclink, 191 }, 192 }, 193}; 194 195static struct platform_device *marxbot_cameras[] __initdata = { 196 &marxbot_camera[0], 197}; 198 199static int __init marxbot_cam_init(void) 200{ 201 int ret = gpio_request(CAM_CHOICE, "cam-choice"); 202 if (ret) 203 return ret; 204 gpio_direction_output(CAM_CHOICE, 0); 205 206 ret = gpio_request(BASECAM_RST_B, "basecam-reset"); 207 if (ret) 208 return ret; 209 gpio_direction_output(BASECAM_RST_B, 1); 210 ret = gpio_request(BASECAM_POWER, "basecam-standby"); 211 if (ret) 212 return ret; 213 gpio_direction_output(BASECAM_POWER, 0); 214 215 ret = gpio_request(TURRETCAM_RST_B, "turretcam-reset"); 216 if (ret) 217 return ret; 218 gpio_direction_output(TURRETCAM_RST_B, 1); 219 ret = gpio_request(TURRETCAM_POWER, "turretcam-standby"); 220 if (ret) 221 return ret; 222 gpio_direction_output(TURRETCAM_POWER, 0); 223 224 return 0; 225} 226 227#define SEL0 IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1) 228#define SEL1 IOMUX_TO_GPIO(MX31_PIN_DSR_DCE1) 229#define SEL2 IOMUX_TO_GPIO(MX31_PIN_RI_DCE1) 230#define SEL3 IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1) 231 232static void marxbot_init_sel_gpios(void) 233{ 234 if (!gpio_request(SEL0, "sel0")) { 235 gpio_direction_input(SEL0); 236 gpio_export(SEL0, true); 237 } 238 239 if (!gpio_request(SEL1, "sel1")) { 240 gpio_direction_input(SEL1); 241 gpio_export(SEL1, true); 242 } 243 244 if (!gpio_request(SEL2, "sel2")) { 245 gpio_direction_input(SEL2); 246 gpio_export(SEL2, true); 247 } 248 249 if (!gpio_request(SEL3, "sel3")) { 250 gpio_direction_input(SEL3); 251 gpio_export(SEL3, true); 252 } 253} 254 255#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \ 256 PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU) 257 258static int marxbot_usbh1_hw_init(struct platform_device *pdev) 259{ 260 mxc_iomux_set_gpr(MUX_PGP_USB_SUSPEND, true); 261 262 mxc_iomux_set_pad(MX31_PIN_CSPI1_MISO, USB_PAD_CFG); 263 mxc_iomux_set_pad(MX31_PIN_CSPI1_MOSI, USB_PAD_CFG); 264 mxc_iomux_set_pad(MX31_PIN_CSPI1_SS0, USB_PAD_CFG); 265 mxc_iomux_set_pad(MX31_PIN_CSPI1_SS1, USB_PAD_CFG); 266 mxc_iomux_set_pad(MX31_PIN_CSPI1_SS2, USB_PAD_CFG); 267 mxc_iomux_set_pad(MX31_PIN_CSPI1_SCLK, USB_PAD_CFG); 268 mxc_iomux_set_pad(MX31_PIN_CSPI1_SPI_RDY, USB_PAD_CFG); 269 mxc_iomux_set_pad(MX31_PIN_SFS6, USB_PAD_CFG); 270 271 return 0; 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 277static 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 296static 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 306static struct mxc_usbh_platform_data usbh1_pdata = { 307 .init = marxbot_usbh1_hw_init, 308 .portsc = MXC_EHCI_MODE_UTMI | MXC_EHCI_SERIAL, 309 .flags = MXC_EHCI_POWER_PINS_ENABLED | MXC_EHCI_INTERFACE_SINGLE_UNI, 310}; 311 312static int __init marxbot_usbh1_init(void) 313{ 314 struct otg_transceiver *otg; 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 return mxc_register_device(&mxc_usbh1, &usbh1_pdata); 327} 328 329static struct fsl_usb2_platform_data usb_pdata = { 330 .operating_mode = FSL_USB2_DR_DEVICE, 331 .phy_mode = FSL_USB2_PHY_ULPI, 332}; 333 334/* 335 * system init for baseboard usage. Will be called by mx31moboard init. 336 */ 337void __init mx31moboard_marxbot_init(void) 338{ 339 printk(KERN_INFO "Initializing mx31marxbot peripherals\n"); 340 341 mxc_iomux_setup_multiple_pins(marxbot_pins, ARRAY_SIZE(marxbot_pins), 342 "marxbot"); 343 344 marxbot_init_sel_gpios(); 345 346 dspics_resets_init(); 347 348 mxc_register_device(&mxcsdhc_device1, &sdhc2_pdata); 349 350 spi_register_board_info(marxbot_spi_board_info, 351 ARRAY_SIZE(marxbot_spi_board_info)); 352 353 marxbot_cam_init(); 354 platform_add_devices(marxbot_cameras, ARRAY_SIZE(marxbot_cameras)); 355 356 /* battery present pin */ 357 gpio_request(IOMUX_TO_GPIO(MX31_PIN_LCS0), "bat-present"); 358 gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_LCS0)); 359 gpio_export(IOMUX_TO_GPIO(MX31_PIN_LCS0), false); 360 361 mxc_register_device(&mxc_otg_udc_device, &usb_pdata); 362 363 marxbot_usbh1_init(); 364} 365