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_info.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         TVP5150_RSTN | GPIO_GPIO | GPIO_OUT,
 120         TVP5150_PWDN | GPIO_GPIO | GPIO_OUT,
 121         PB10_PF_CSI_D0,
 122         PB11_PF_CSI_D1,
 123         PB12_PF_CSI_D2,
 124         PB13_PF_CSI_D3,
 125         PB14_PF_CSI_D4,
 126         PB15_PF_CSI_MCLK,
 127         PB16_PF_CSI_PIXCLK,
 128         PB17_PF_CSI_D5,
 129         PB18_PF_CSI_D6,
 130         PB19_PF_CSI_D7,
 131         PB20_PF_CSI_VSYNC,
 132         PB21_PF_CSI_HSYNC,
 133         /* mother board version */
 134         MOTHERBOARD_BIT2 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
 135         MOTHERBOARD_BIT1 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
 136         MOTHERBOARD_BIT0 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
 137         /* expansion board version */
 138         EXPBOARD_BIT2 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
 139         EXPBOARD_BIT1 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
 140         EXPBOARD_BIT0 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
 141 };
 142
 143 static struct gpio visstrim_m10_version_gpios[] = {
 144         { EXPBOARD_BIT0, GPIOF_IN, "exp-version-0" },
 145         { EXPBOARD_BIT1, GPIOF_IN, "exp-version-1" },
 146         { EXPBOARD_BIT2, GPIOF_IN, "exp-version-2" },
 147         { MOTHERBOARD_BIT0, GPIOF_IN, "mother-version-0" },
 148         { MOTHERBOARD_BIT1, GPIOF_IN, "mother-version-1" },
 149         { MOTHERBOARD_BIT2, GPIOF_IN, "mother-version-2" },
 150 };
 151
 152 static const struct gpio visstrim_m10_gpios[] __initconst = {
 153         {
 154                 .gpio = TVP5150_RSTN,
 155                 .flags = GPIOF_DIR_OUT | GPIOF_INIT_HIGH,
 156                 .label = "tvp5150_rstn",
 157         },
 158         {
 159                 .gpio = TVP5150_PWDN,
 160                 .flags = GPIOF_DIR_OUT | GPIOF_INIT_LOW,
 161                 .label = "tvp5150_pwdn",
 162         },
 163         {
 164                 .gpio = OTG_PHY_CS_GPIO,
 165                 .flags = GPIOF_DIR_OUT | GPIOF_INIT_LOW,
 166                 .label = "usbotg_cs",
 167         },
 168 };
 169
 170 /* Camera */
 171 static int visstrim_camera_power(struct device *dev, int on)
 172 {
 173         gpio_set_value(TVP5150_PWDN, on);
 174
 175         return 0;
 176 };
 177
 178 static int visstrim_camera_reset(struct device *dev)
 179 {
 180         gpio_set_value(TVP5150_RSTN, 0);
 181         ndelay(500);
 182         gpio_set_value(TVP5150_RSTN, 1);
 183
 184         return 0;
 185 };
 186
 187 static struct i2c_board_info visstrim_i2c_camera =  {
 188         I2C_BOARD_INFO("tvp5150", 0x5d),
 189 };
 190
 191 static struct soc_camera_link iclink_tvp5150 = {
 192         .bus_id         = 0,
 193         .board_info     = &visstrim_i2c_camera,
 194         .i2c_adapter_id = 0,
 195         .power = visstrim_camera_power,
 196         .reset = visstrim_camera_reset,
 197 };
 198
 199 static struct mx2_camera_platform_data visstrim_camera = {
 200         .flags = MX2_CAMERA_CCIR | MX2_CAMERA_CCIR_INTERLACE |
 201                  MX2_CAMERA_PCLK_SAMPLE_RISING,
 202         .clk = 100000,
 203 };
 204
 205 static phys_addr_t mx2_camera_base __initdata;
 206 #define MX2_CAMERA_BUF_SIZE SZ_8M
 207
 208 static void __init visstrim_camera_init(void)
 209 {
 210         struct platform_device *pdev;
 211         int dma;
 212
 213         gpio_set_value(TVP5150_PWDN, 1);
 214         ndelay(1);
 215         gpio_set_value(TVP5150_RSTN, 0);
 216         ndelay(500);
 217         gpio_set_value(TVP5150_RSTN, 1);
 218         ndelay(200000);
 219
 220         pdev = imx27_add_mx2_camera(&visstrim_camera);
 221         if (IS_ERR(pdev))
 222                 return;
 223
 224         dma = dma_declare_coherent_memory(&pdev->dev,
 225                                 mx2_camera_base, mx2_camera_base,
 226                                 MX2_CAMERA_BUF_SIZE,
 227                                 DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
 228         if (!(dma & DMA_MEMORY_MAP))
 229                 return;
 230 }
 231
 232 static void __init visstrim_reserve(void)
 233 {
 234         /* reserve 4 MiB for mx2-camera */
 235         mx2_camera_base = memblock_alloc(MX2_CAMERA_BUF_SIZE,
 236                         MX2_CAMERA_BUF_SIZE);
 237         memblock_free(mx2_camera_base, MX2_CAMERA_BUF_SIZE);
 238         memblock_remove(mx2_camera_base, MX2_CAMERA_BUF_SIZE);
 239 }
 240
 241 /* GPIOs used as events for applications */
 242 static struct gpio_keys_button visstrim_gpio_keys[] = {
 243         {
 244                 .type   = EV_KEY,
 245                 .code   = KEY_RESTART,
 246                 .gpio   = (GPIO_PORTC + 15),
 247                 .desc   = "Default config",
 248                 .active_low = 0,
 249                 .wakeup = 1,
 250         },
 251         {
 252                 .type   = EV_KEY,
 253                 .code   = KEY_RECORD,
 254                 .gpio   = (GPIO_PORTF + 14),
 255                 .desc   = "Record",
 256                 .active_low = 0,
 257                 .wakeup = 1,
 258         },
 259         {
 260                 .type   = EV_KEY,
 261                 .code   = KEY_STOP,
 262                 .gpio   = (GPIO_PORTF + 13),
 263                 .desc   = "Stop",
 264                 .active_low = 0,
 265                 .wakeup = 1,
 266         }
 267 };
 268
 269 static const struct gpio_keys_platform_data
 270                 visstrim_gpio_keys_platform_data __initconst = {
 271         .buttons        = visstrim_gpio_keys,
 272         .nbuttons       = ARRAY_SIZE(visstrim_gpio_keys),
 273 };
 274
 275 /* led */
 276 static const struct gpio_led visstrim_m10_leds[] __initconst = {
 277         {
 278                 .name = "visstrim:ld0",
 279                 .default_trigger = "nand-disk",
 280                 .gpio = (GPIO_PORTC + 29),
 281         },
 282         {
 283                 .name = "visstrim:ld1",
 284                 .default_trigger = "nand-disk",
 285                 .gpio = (GPIO_PORTC + 24),
 286         },
 287         {
 288                 .name = "visstrim:ld2",
 289                 .default_trigger = "nand-disk",
 290                 .gpio = (GPIO_PORTC + 28),
 291         },
 292         {
 293                 .name = "visstrim:ld3",
 294                 .default_trigger = "nand-disk",
 295                 .gpio = (GPIO_PORTC + 25),
 296         },
 297 };
 298
 299 static const struct gpio_led_platform_data visstrim_m10_led_data __initconst = {
 300         .leds = visstrim_m10_leds,
 301         .num_leds = ARRAY_SIZE(visstrim_m10_leds),
 302 };
 303
 304 /* Visstrim_SM10 has a microSD slot connected to sdhc1 */
 305 static int visstrim_m10_sdhc1_init(struct device *dev,
 306                 irq_handler_t detect_irq, void *data)
 307 {
 308         int ret;
 309
 310         ret = request_irq(SDHC1_IRQ, detect_irq, IRQF_TRIGGER_FALLING,
 311                                 "mmc-detect", data);
 312         return ret;
 313 }
 314
 315 static void visstrim_m10_sdhc1_exit(struct device *dev, void *data)
 316 {
 317         free_irq(SDHC1_IRQ, data);
 318 }
 319
 320 static const struct imxmmc_platform_data visstrim_m10_sdhc_pdata __initconst = {
 321         .init = visstrim_m10_sdhc1_init,
 322         .exit = visstrim_m10_sdhc1_exit,
 323 };
 324
 325 /* Visstrim_SM10 NOR flash */
 326 static struct physmap_flash_data visstrim_m10_flash_data = {
 327         .width = 2,
 328 };
 329
 330 static struct resource visstrim_m10_flash_resource = {
 331         .start = 0xc0000000,
 332         .end = 0xc0000000 + SZ_64M - 1,
 333         .flags = IORESOURCE_MEM,
 334 };
 335
 336 static struct platform_device visstrim_m10_nor_mtd_device = {
 337         .name = "physmap-flash",
 338         .id = 0,
 339         .dev = {
 340                 .platform_data = &visstrim_m10_flash_data,
 341         },
 342         .num_resources = 1,
 343         .resource = &visstrim_m10_flash_resource,
 344 };
 345
 346 static struct platform_device *platform_devices[] __initdata = {
 347         &visstrim_m10_nor_mtd_device,
 348 };
 349
 350 /* Visstrim_M10 uses UART0 as console */
 351 static const struct imxuart_platform_data uart_pdata __initconst = {
 352         .flags = IMXUART_HAVE_RTSCTS,
 353 };
 354
 355 /* I2C */
 356 static const struct imxi2c_platform_data visstrim_m10_i2c_data __initconst = {
 357         .bitrate = 100000,
 358 };
 359
 360 static struct pca953x_platform_data visstrim_m10_pca9555_pdata = {
 361         .gpio_base = 240, /* After MX27 internal GPIOs */
 362         .invert = 0,
 363 };
 364
 365 static struct aic32x4_pdata visstrim_m10_aic32x4_pdata = {
 366         .power_cfg = AIC32X4_PWR_MICBIAS_2075_LDOIN |
 367                      AIC32X4_PWR_AVDD_DVDD_WEAK_DISABLE |
 368                      AIC32X4_PWR_AIC32X4_LDO_ENABLE |
 369                      AIC32X4_PWR_CMMODE_LDOIN_RANGE_18_36 |
 370                      AIC32X4_PWR_CMMODE_HP_LDOIN_POWERED,
 371         .micpga_routing = AIC32X4_MICPGA_ROUTE_LMIC_IN2R_10K |
 372                          AIC32X4_MICPGA_ROUTE_RMIC_IN1L_10K,
 373         .swapdacs = false,
 374 };
 375
 376 static struct i2c_board_info visstrim_m10_i2c_devices[] = {
 377         {
 378                 I2C_BOARD_INFO("pca9555", 0x20),
 379                 .platform_data = &visstrim_m10_pca9555_pdata,
 380         },
 381         {
 382                 I2C_BOARD_INFO("tlv320aic32x4", 0x18),
 383                 .platform_data = &visstrim_m10_aic32x4_pdata,
 384         },
 385         {
 386                  I2C_BOARD_INFO("m41t00", 0x68),
 387         }
 388 };
 389
 390 /* USB OTG */
 391 static int otg_phy_init(struct platform_device *pdev)
 392 {
 393         return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
 394 }
 395
 396 static const struct mxc_usbh_platform_data
 397 visstrim_m10_usbotg_pdata __initconst = {
 398         .init = otg_phy_init,
 399         .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
 400 };
 401
 402 /* SSI */
 403 static const struct imx_ssi_platform_data visstrim_m10_ssi_pdata __initconst = {
 404         .flags                  = IMX_SSI_DMA | IMX_SSI_SYN,
 405 };
 406
 407 static void __init visstrim_m10_revision(void)
 408 {
 409         int exp_version = 0;
 410         int mo_version = 0;
 411         int ret;
 412
 413         ret = gpio_request_array(visstrim_m10_version_gpios,
 414                                  ARRAY_SIZE(visstrim_m10_version_gpios));
 415         if (ret) {
 416                 pr_err("Failed to request version gpios");
 417                 return;
 418         }
 419
 420         /* Get expansion board version (negative logic) */
 421         exp_version |= !gpio_get_value(EXPBOARD_BIT2) << 2;
 422         exp_version |= !gpio_get_value(EXPBOARD_BIT1) << 1;
 423         exp_version |= !gpio_get_value(EXPBOARD_BIT0);
 424
 425         /* Get mother board version (negative logic) */
 426         mo_version |= !gpio_get_value(MOTHERBOARD_BIT2) << 2;
 427         mo_version |= !gpio_get_value(MOTHERBOARD_BIT1) << 1;
 428         mo_version |= !gpio_get_value(MOTHERBOARD_BIT0);
 429
 430         system_rev = 0x27000;
 431         system_rev |= (mo_version << 4);
 432         system_rev |= exp_version;
 433 }
 434
 435 static void __init visstrim_m10_board_init(void)
 436 {
 437         int ret;
 438
 439         imx27_soc_init();
 440         visstrim_m10_revision();
 441
 442         ret = mxc_gpio_setup_multiple_pins(visstrim_m10_pins,
 443                         ARRAY_SIZE(visstrim_m10_pins), "VISSTRIM_M10");
 444         if (ret)
 445                 pr_err("Failed to setup pins (%d)\n", ret);
 446
 447         ret = gpio_request_array(visstrim_m10_gpios,
 448                                 ARRAY_SIZE(visstrim_m10_gpios));
 449         if (ret)
 450                 pr_err("Failed to request gpios (%d)\n", ret);
 451
 452         imx27_add_imx_ssi(0, &visstrim_m10_ssi_pdata);
 453         imx27_add_imx_uart0(&uart_pdata);
 454
 455         imx27_add_imx_i2c(0, &visstrim_m10_i2c_data);
 456         imx27_add_imx_i2c(1, &visstrim_m10_i2c_data);
 457         i2c_register_board_info(0, visstrim_m10_i2c_devices,
 458                                 ARRAY_SIZE(visstrim_m10_i2c_devices));
 459
 460         imx27_add_mxc_mmc(0, &visstrim_m10_sdhc_pdata);
 461         imx27_add_mxc_ehci_otg(&visstrim_m10_usbotg_pdata);
 462         imx27_add_fec(NULL);
 463         imx_add_gpio_keys(&visstrim_gpio_keys_platform_data);
 464         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 465         imx_add_platform_device("mx27vis", 0, NULL, 0, NULL, 0);
 466         platform_device_register_resndata(NULL, "soc-camera-pdrv", 0, NULL, 0,
 467                                       &iclink_tvp5150, sizeof(iclink_tvp5150));
 468         gpio_led_register_device(0, &visstrim_m10_led_data);
 469         visstrim_camera_init();
 470 }
 471
 472 static void __init visstrim_m10_timer_init(void)
 473 {
 474         mx27_clocks_init((unsigned long)25000000);
 475 }
 476
 477 static struct sys_timer visstrim_m10_timer = {
 478         .init   = visstrim_m10_timer_init,
 479 };
 480
 481 MACHINE_START(IMX27_VISSTRIM_M10, "Vista Silicon Visstrim_M10")
 482         .atag_offset = 0x100,
 483         .reserve = visstrim_reserve,
 484         .map_io = mx27_map_io,
 485         .init_early = imx27_init_early,
 486         .init_irq = mx27_init_irq,
 487         .handle_irq = imx27_handle_irq,
 488         .timer = &visstrim_m10_timer,
 489         .init_machine = visstrim_m10_board_init,
 490         .restart        = mxc_restart,
 491 MACHINE_END