arch/arm/mach-imx/mach-imx27_visstrim_m10.c

   1 /*
   2  * mach-imx27_visstrim_m10.c
   3  *
   4  * Copyright 2010  Javier Martin <javier.martin@vista-silicon.com>
   5  *
   6  * Based on mach-pcm038.c, mach-pca100.c, mach-mx27ads.c and others.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  21  * MA 02110-1301, USA.
  22  */
  23
  24 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  25
  26 #include <linux/platform_device.h>
  27 #include <linux/mtd/physmap.h>
  28 #include <linux/i2c.h>
  29 #include <linux/i2c/pca953x.h>
  30 #include <linux/input.h>
  31 #include <linux/gpio.h>
  32 #include <linux/delay.h>
  33 #include <linux/dma-mapping.h>
  34 #include <linux/leds.h>
  35 #include <linux/memblock.h>
  36 #include <media/soc_camera.h>
  37 #include <sound/tlv320aic32x4.h>
  38 #include <asm/mach-types.h>
  39 #include <asm/mach/arch.h>
  40 #include <asm/mach/time.h>
  41 #include <asm/system.h>
  42 #include <mach/common.h>
  43 #include <mach/iomux-mx27.h>
  44
  45 #include "devices-imx27.h"
  46
  47 #define TVP5150_RSTN (GPIO_PORTC + 18)
  48 #define TVP5150_PWDN (GPIO_PORTC + 19)
  49 #define OTG_PHY_CS_GPIO (GPIO_PORTF + 17)
  50 #define SDHC1_IRQ IRQ_GPIOB(25)
  51
  52 #define MOTHERBOARD_BIT2        (GPIO_PORTD + 31)
  53 #define MOTHERBOARD_BIT1        (GPIO_PORTD + 30)
  54 #define MOTHERBOARD_BIT0        (GPIO_PORTD + 29)
  55
  56 #define EXPBOARD_BIT2           (GPIO_PORTD + 25)
  57 #define EXPBOARD_BIT1           (GPIO_PORTD + 27)
  58 #define EXPBOARD_BIT0           (GPIO_PORTD + 28)
  59
  60 static const int visstrim_m10_pins[] __initconst = {
  61         /* UART1 (console) */
  62         PE12_PF_UART1_TXD,
  63         PE13_PF_UART1_RXD,
  64         PE14_PF_UART1_CTS,
  65         PE15_PF_UART1_RTS,
  66         /* FEC */
  67         PD0_AIN_FEC_TXD0,
  68         PD1_AIN_FEC_TXD1,
  69         PD2_AIN_FEC_TXD2,
  70         PD3_AIN_FEC_TXD3,
  71         PD4_AOUT_FEC_RX_ER,
  72         PD5_AOUT_FEC_RXD1,
  73         PD6_AOUT_FEC_RXD2,
  74         PD7_AOUT_FEC_RXD3,
  75         PD8_AF_FEC_MDIO,
  76         PD9_AIN_FEC_MDC,
  77         PD10_AOUT_FEC_CRS,
  78         PD11_AOUT_FEC_TX_CLK,
  79         PD12_AOUT_FEC_RXD0,
  80         PD13_AOUT_FEC_RX_DV,
  81         PD14_AOUT_FEC_RX_CLK,
  82         PD15_AOUT_FEC_COL,
  83         PD16_AIN_FEC_TX_ER,
  84         PF23_AIN_FEC_TX_EN,
  85         /* SSI1 */
  86         PC20_PF_SSI1_FS,
  87         PC21_PF_SSI1_RXD,
  88         PC22_PF_SSI1_TXD,
  89         PC23_PF_SSI1_CLK,
  90         /* SDHC1 */
  91         PE18_PF_SD1_D0,
  92         PE19_PF_SD1_D1,
  93         PE20_PF_SD1_D2,
  94         PE21_PF_SD1_D3,
  95         PE22_PF_SD1_CMD,
  96         PE23_PF_SD1_CLK,
  97         /* Both I2Cs */
  98         PD17_PF_I2C_DATA,
  99         PD18_PF_I2C_CLK,
 100         PC5_PF_I2C2_SDA,
 101         PC6_PF_I2C2_SCL,
 102         /* USB OTG */
 103         OTG_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
 104         PC9_PF_USBOTG_DATA0,
 105         PC11_PF_USBOTG_DATA1,
 106         PC10_PF_USBOTG_DATA2,
 107         PC13_PF_USBOTG_DATA3,
 108         PC12_PF_USBOTG_DATA4,
 109         PC7_PF_USBOTG_DATA5,
 110         PC8_PF_USBOTG_DATA6,
 111         PE25_PF_USBOTG_DATA7,
 112         PE24_PF_USBOTG_CLK,
 113         PE2_PF_USBOTG_DIR,
 114         PE0_PF_USBOTG_NXT,
 115         PE1_PF_USBOTG_STP,
 116         PB23_PF_USB_PWR,
 117         PB24_PF_USB_OC,
 118         /* CSI */
 119         PB10_PF_CSI_D0,
 120         PB11_PF_CSI_D1,
 121         PB12_PF_CSI_D2,
 122         PB13_PF_CSI_D3,
 123         PB14_PF_CSI_D4,
 124         PB15_PF_CSI_MCLK,
 125         PB16_PF_CSI_PIXCLK,
 126         PB17_PF_CSI_D5,
 127         PB18_PF_CSI_D6,
 128         PB19_PF_CSI_D7,
 129         PB20_PF_CSI_VSYNC,
 130         PB21_PF_CSI_HSYNC,
 131         /* mother board version */
 132         MOTHERBOARD_BIT2 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
 133         MOTHERBOARD_BIT1 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
 134         MOTHERBOARD_BIT0 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
 135         /* expansion board version */
 136         EXPBOARD_BIT2 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
 137         EXPBOARD_BIT1 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
 138         EXPBOARD_BIT0 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
 139 };
 140
 141 static struct gpio visstrim_m10_version_gpios[] = {
 142         { EXPBOARD_BIT0, GPIOF_IN, "exp-version-0" },
 143         { EXPBOARD_BIT1, GPIOF_IN, "exp-version-1" },
 144         { EXPBOARD_BIT2, GPIOF_IN, "exp-version-2" },
 145         { MOTHERBOARD_BIT0, GPIOF_IN, "mother-version-0" },
 146         { MOTHERBOARD_BIT1, GPIOF_IN, "mother-version-1" },
 147         { MOTHERBOARD_BIT2, GPIOF_IN, "mother-version-2" },
 148 };
 149
 150 /* Camera */
 151 static int visstrim_camera_power(struct device *dev, int on)
 152 {
 153         gpio_set_value(TVP5150_PWDN, on);
 154
 155         return 0;
 156 };
 157
 158 static int visstrim_camera_reset(struct device *dev)
 159 {
 160         gpio_set_value(TVP5150_RSTN, 0);
 161         ndelay(500);
 162         gpio_set_value(TVP5150_RSTN, 1);
 163
 164         return 0;
 165 };
 166
 167 static struct i2c_board_info visstrim_i2c_camera =  {
 168         I2C_BOARD_INFO("tvp5150", 0x5d),
 169 };
 170
 171 static struct soc_camera_link iclink_tvp5150 = {
 172         .bus_id         = 0,
 173         .board_info     = &visstrim_i2c_camera,
 174         .i2c_adapter_id = 0,
 175         .power = visstrim_camera_power,
 176         .reset = visstrim_camera_reset,
 177 };
 178
 179 static struct mx2_camera_platform_data visstrim_camera = {
 180         .flags = MX2_CAMERA_CCIR | MX2_CAMERA_CCIR_INTERLACE |
 181                  MX2_CAMERA_PCLK_SAMPLE_RISING,
 182         .clk = 100000,
 183 };
 184
 185 static phys_addr_t mx2_camera_base __initdata;
 186 #define MX2_CAMERA_BUF_SIZE SZ_8M
 187
 188 static void __init visstrim_camera_init(void)
 189 {
 190         struct platform_device *pdev;
 191         int dma;
 192
 193         /* Initialize tvp5150 gpios */
 194         mxc_gpio_mode(TVP5150_RSTN | GPIO_GPIO | GPIO_OUT);
 195         mxc_gpio_mode(TVP5150_PWDN | GPIO_GPIO | GPIO_OUT);
 196         gpio_set_value(TVP5150_RSTN, 1);
 197         gpio_set_value(TVP5150_PWDN, 0);
 198         ndelay(1);
 199
 200         gpio_set_value(TVP5150_PWDN, 1);
 201         ndelay(1);
 202         gpio_set_value(TVP5150_RSTN, 0);
 203         ndelay(500);
 204         gpio_set_value(TVP5150_RSTN, 1);
 205         ndelay(200000);
 206
 207         pdev = imx27_add_mx2_camera(&visstrim_camera);
 208         if (IS_ERR(pdev))
 209                 return;
 210
 211         dma = dma_declare_coherent_memory(&pdev->dev,
 212                                 mx2_camera_base, mx2_camera_base,
 213                                 MX2_CAMERA_BUF_SIZE,
 214                                 DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
 215         if (!(dma & DMA_MEMORY_MAP))
 216                 return;
 217 }
 218
 219 static void __init visstrim_reserve(void)
 220 {
 221         /* reserve 4 MiB for mx2-camera */
 222         mx2_camera_base = memblock_alloc(MX2_CAMERA_BUF_SIZE,
 223                         MX2_CAMERA_BUF_SIZE);
 224         memblock_free(mx2_camera_base, MX2_CAMERA_BUF_SIZE);
 225         memblock_remove(mx2_camera_base, MX2_CAMERA_BUF_SIZE);
 226 }
 227
 228 /* GPIOs used as events for applications */
 229 static struct gpio_keys_button visstrim_gpio_keys[] = {
 230         {
 231                 .type   = EV_KEY,
 232                 .code   = KEY_RESTART,
 233                 .gpio   = (GPIO_PORTC + 15),
 234                 .desc   = "Default config",
 235                 .active_low = 0,
 236                 .wakeup = 1,
 237         },
 238         {
 239                 .type   = EV_KEY,
 240                 .code   = KEY_RECORD,
 241                 .gpio   = (GPIO_PORTF + 14),
 242                 .desc   = "Record",
 243                 .active_low = 0,
 244                 .wakeup = 1,
 245         },
 246         {
 247                 .type   = EV_KEY,
 248                 .code   = KEY_STOP,
 249                 .gpio   = (GPIO_PORTF + 13),
 250                 .desc   = "Stop",
 251                 .active_low = 0,
 252                 .wakeup = 1,
 253         }
 254 };
 255
 256 static const struct gpio_keys_platform_data
 257                 visstrim_gpio_keys_platform_data __initconst = {
 258         .buttons        = visstrim_gpio_keys,
 259         .nbuttons       = ARRAY_SIZE(visstrim_gpio_keys),
 260 };
 261
 262 /* led */
 263 static const struct gpio_led visstrim_m10_leds[] __initconst = {
 264         {
 265                 .name = "visstrim:ld0",
 266                 .default_trigger = "nand-disk",
 267                 .gpio = (GPIO_PORTC + 29),
 268         },
 269         {
 270                 .name = "visstrim:ld1",
 271                 .default_trigger = "nand-disk",
 272                 .gpio = (GPIO_PORTC + 24),
 273         },
 274         {
 275                 .name = "visstrim:ld2",
 276                 .default_trigger = "nand-disk",
 277                 .gpio = (GPIO_PORTC + 28),
 278         },
 279         {
 280                 .name = "visstrim:ld3",
 281                 .default_trigger = "nand-disk",
 282                 .gpio = (GPIO_PORTC + 25),
 283         },
 284 };
 285
 286 static const struct gpio_led_platform_data visstrim_m10_led_data __initconst = {
 287         .leds = visstrim_m10_leds,
 288         .num_leds = ARRAY_SIZE(visstrim_m10_leds),
 289 };
 290
 291 /* Visstrim_SM10 has a microSD slot connected to sdhc1 */
 292 static int visstrim_m10_sdhc1_init(struct device *dev,
 293                 irq_handler_t detect_irq, void *data)
 294 {
 295         int ret;
 296
 297         ret = request_irq(SDHC1_IRQ, detect_irq, IRQF_TRIGGER_FALLING,
 298                                 "mmc-detect", data);
 299         return ret;
 300 }
 301
 302 static void visstrim_m10_sdhc1_exit(struct device *dev, void *data)
 303 {
 304         free_irq(SDHC1_IRQ, data);
 305 }
 306
 307 static const struct imxmmc_platform_data visstrim_m10_sdhc_pdata __initconst = {
 308         .init = visstrim_m10_sdhc1_init,
 309         .exit = visstrim_m10_sdhc1_exit,
 310 };
 311
 312 /* Visstrim_SM10 NOR flash */
 313 static struct physmap_flash_data visstrim_m10_flash_data = {
 314         .width = 2,
 315 };
 316
 317 static struct resource visstrim_m10_flash_resource = {
 318         .start = 0xc0000000,
 319         .end = 0xc0000000 + SZ_64M - 1,
 320         .flags = IORESOURCE_MEM,
 321 };
 322
 323 static struct platform_device visstrim_m10_nor_mtd_device = {
 324         .name = "physmap-flash",
 325         .id = 0,
 326         .dev = {
 327                 .platform_data = &visstrim_m10_flash_data,
 328         },
 329         .num_resources = 1,
 330         .resource = &visstrim_m10_flash_resource,
 331 };
 332
 333 static struct platform_device *platform_devices[] __initdata = {
 334         &visstrim_m10_nor_mtd_device,
 335 };
 336
 337 /* Visstrim_M10 uses UART0 as console */
 338 static const struct imxuart_platform_data uart_pdata __initconst = {
 339         .flags = IMXUART_HAVE_RTSCTS,
 340 };
 341
 342 /* I2C */
 343 static const struct imxi2c_platform_data visstrim_m10_i2c_data __initconst = {
 344         .bitrate = 100000,
 345 };
 346
 347 static struct pca953x_platform_data visstrim_m10_pca9555_pdata = {
 348         .gpio_base = 240, /* After MX27 internal GPIOs */
 349         .invert = 0,
 350 };
 351
 352 static struct aic32x4_pdata visstrim_m10_aic32x4_pdata = {
 353         .power_cfg = AIC32X4_PWR_MICBIAS_2075_LDOIN |
 354                      AIC32X4_PWR_AVDD_DVDD_WEAK_DISABLE |
 355                      AIC32X4_PWR_AIC32X4_LDO_ENABLE |
 356                      AIC32X4_PWR_CMMODE_LDOIN_RANGE_18_36 |
 357                      AIC32X4_PWR_CMMODE_HP_LDOIN_POWERED,
 358         .micpga_routing = AIC32X4_MICPGA_ROUTE_LMIC_IN2R_10K |
 359                          AIC32X4_MICPGA_ROUTE_RMIC_IN1L_10K,
 360         .swapdacs = false,
 361 };
 362
 363 static struct i2c_board_info visstrim_m10_i2c_devices[] = {
 364         {
 365                 I2C_BOARD_INFO("pca9555", 0x20),
 366                 .platform_data = &visstrim_m10_pca9555_pdata,
 367         },
 368         {
 369                 I2C_BOARD_INFO("tlv320aic32x4", 0x18),
 370                 .platform_data = &visstrim_m10_aic32x4_pdata,
 371         },
 372         {
 373                  I2C_BOARD_INFO("m41t00", 0x68),
 374         }
 375 };
 376
 377 /* USB OTG */
 378 static int otg_phy_init(struct platform_device *pdev)
 379 {
 380         gpio_set_value(OTG_PHY_CS_GPIO, 0);
 381
 382         mdelay(10);
 383
 384         return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
 385 }
 386
 387 static const struct mxc_usbh_platform_data
 388 visstrim_m10_usbotg_pdata __initconst = {
 389         .init = otg_phy_init,
 390         .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
 391 };
 392
 393 /* SSI */
 394 static const struct imx_ssi_platform_data visstrim_m10_ssi_pdata __initconst = {
 395         .flags                  = IMX_SSI_DMA | IMX_SSI_SYN,
 396 };
 397
 398 static void __init visstrim_m10_revision(void)
 399 {
 400         int exp_version = 0;
 401         int mo_version = 0;
 402         int ret;
 403
 404         ret = gpio_request_array(visstrim_m10_version_gpios,
 405                                  ARRAY_SIZE(visstrim_m10_version_gpios));
 406         if (ret) {
 407                 pr_err("Failed to request version gpios");
 408                 return;
 409         }
 410
 411         /* Get expansion board version (negative logic) */
 412         exp_version |= !gpio_get_value(EXPBOARD_BIT2) << 2;
 413         exp_version |= !gpio_get_value(EXPBOARD_BIT1) << 1;
 414         exp_version |= !gpio_get_value(EXPBOARD_BIT0);
 415
 416         /* Get mother board version (negative logic) */
 417         mo_version |= !gpio_get_value(MOTHERBOARD_BIT2) << 2;
 418         mo_version |= !gpio_get_value(MOTHERBOARD_BIT1) << 1;
 419         mo_version |= !gpio_get_value(MOTHERBOARD_BIT0);
 420
 421         system_rev = 0x27000;
 422         system_rev |= (mo_version << 4);
 423         system_rev |= exp_version;
 424 }
 425
 426 static void __init visstrim_m10_board_init(void)
 427 {
 428         int ret;
 429
 430         imx27_soc_init();
 431         visstrim_m10_revision();
 432
 433         ret = mxc_gpio_setup_multiple_pins(visstrim_m10_pins,
 434                         ARRAY_SIZE(visstrim_m10_pins), "VISSTRIM_M10");
 435         if (ret)
 436                 pr_err("Failed to setup pins (%d)\n", ret);
 437
 438         imx27_add_imx_ssi(0, &visstrim_m10_ssi_pdata);
 439         imx27_add_imx_uart0(&uart_pdata);
 440
 441         imx27_add_imx_i2c(0, &visstrim_m10_i2c_data);
 442         imx27_add_imx_i2c(1, &visstrim_m10_i2c_data);
 443         i2c_register_board_info(0, visstrim_m10_i2c_devices,
 444                                 ARRAY_SIZE(visstrim_m10_i2c_devices));
 445
 446         imx27_add_mxc_mmc(0, &visstrim_m10_sdhc_pdata);
 447         imx27_add_mxc_ehci_otg(&visstrim_m10_usbotg_pdata);
 448         imx27_add_fec(NULL);
 449         imx_add_gpio_keys(&visstrim_gpio_keys_platform_data);
 450         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 451         imx_add_platform_device("mx27vis", 0, NULL, 0, NULL, 0);
 452         platform_device_register_resndata(NULL, "soc-camera-pdrv", 0, NULL, 0,
 453                                       &iclink_tvp5150, sizeof(iclink_tvp5150));
 454         gpio_led_register_device(0, &visstrim_m10_led_data);
 455         visstrim_camera_init();
 456 }
 457
 458 static void __init visstrim_m10_timer_init(void)
 459 {
 460         mx27_clocks_init((unsigned long)25000000);
 461 }
 462
 463 static struct sys_timer visstrim_m10_timer = {
 464         .init   = visstrim_m10_timer_init,
 465 };
 466
 467 MACHINE_START(IMX27_VISSTRIM_M10, "Vista Silicon Visstrim_M10")
 468         .atag_offset = 0x100,
 469         .reserve = visstrim_reserve,
 470         .map_io = mx27_map_io,
 471         .init_early = imx27_init_early,
 472         .init_irq = mx27_init_irq,
 473         .handle_irq = imx27_handle_irq,
 474         .timer = &visstrim_m10_timer,
 475         .init_machine = visstrim_m10_board_init,
 476         .restart        = mxc_restart,
 477 MACHINE_END