arch/arm/mach-at91/board-sam9m10g45ek.c

   1 /*
   2  *  Board-specific setup code for the AT91SAM9M10G45 Evaluation Kit family
   3  *
   4  *  Covers: * AT91SAM9G45-EKES  board
   5  *          * AT91SAM9M10G45-EK board
   6  *
   7  *  Copyright (C) 2009 Atmel Corporation.
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  */
  15
  16 #include <linux/types.h>
  17 #include <linux/gpio.h>
  18 #include <linux/init.h>
  19 #include <linux/mm.h>
  20 #include <linux/module.h>
  21 #include <linux/platform_device.h>
  22 #include <linux/spi/spi.h>
  23 #include <linux/fb.h>
  24 #include <linux/gpio_keys.h>
  25 #include <linux/input.h>
  26 #include <linux/leds.h>
  27 #include <linux/atmel-mci.h>
  28 #include <linux/delay.h>
  29 #include <linux/pwm.h>
  30 #include <linux/leds_pwm.h>
  31
  32 #include <linux/platform_data/at91_adc.h>
  33
  34 #include <mach/hardware.h>
  35 #include <video/atmel_lcdc.h>
  36 #include <media/soc_camera.h>
  37 #include <media/atmel-isi.h>
  38
  39 #include <asm/setup.h>
  40 #include <asm/mach-types.h>
  41 #include <asm/irq.h>
  42
  43 #include <asm/mach/arch.h>
  44 #include <asm/mach/map.h>
  45 #include <asm/mach/irq.h>
  46
  47 #include <mach/at91sam9_smc.h>
  48 #include <mach/system_rev.h>
  49
  50 #include "at91_aic.h"
  51 #include "at91_shdwc.h"
  52 #include "board.h"
  53 #include "sam9_smc.h"
  54 #include "generic.h"
  55 #include "gpio.h"
  56
  57
  58 static void __init ek_init_early(void)
  59 {
  60         /* Initialize processor: 12.000 MHz crystal */
  61         at91_initialize(12000000);
  62 }
  63
  64 /*
  65  * USB HS Host port (common to OHCI & EHCI)
  66  */
  67 static struct at91_usbh_data __initdata ek_usbh_hs_data = {
  68         .ports          = 2,
  69         .vbus_pin       = {AT91_PIN_PD1, AT91_PIN_PD3},
  70         .vbus_pin_active_low = {1, 1},
  71         .overcurrent_pin= {-EINVAL, -EINVAL},
  72 };
  73
  74
  75 /*
  76  * USB HS Device port
  77  */
  78 static struct usba_platform_data __initdata ek_usba_udc_data = {
  79         .vbus_pin       = AT91_PIN_PB19,
  80 };
  81
  82
  83 /*
  84  * SPI devices.
  85  */
  86 static struct spi_board_info ek_spi_devices[] = {
  87         {       /* DataFlash chip */
  88                 .modalias       = "mtd_dataflash",
  89                 .chip_select    = 0,
  90                 .max_speed_hz   = 15 * 1000 * 1000,
  91                 .bus_num        = 0,
  92         },
  93 };
  94
  95
  96 /*
  97  * MCI (SD/MMC)
  98  */
  99 static struct mci_platform_data __initdata mci0_data = {
 100         .slot[0] = {
 101                 .bus_width      = 4,
 102                 .detect_pin     = AT91_PIN_PD10,
 103                 .wp_pin         = -EINVAL,
 104         },
 105 };
 106
 107 static struct mci_platform_data __initdata mci1_data = {
 108         .slot[0] = {
 109                 .bus_width      = 4,
 110                 .detect_pin     = AT91_PIN_PD11,
 111                 .wp_pin         = AT91_PIN_PD29,
 112         },
 113 };
 114
 115
 116 /*
 117  * MACB Ethernet device
 118  */
 119 static struct macb_platform_data __initdata ek_macb_data = {
 120         .phy_irq_pin    = AT91_PIN_PD5,
 121         .is_rmii        = 1,
 122 };
 123
 124
 125 /*
 126  * NAND flash
 127  */
 128 static struct mtd_partition __initdata ek_nand_partition[] = {
 129         {
 130                 .name   = "Partition 1",
 131                 .offset = 0,
 132                 .size   = SZ_64M,
 133         },
 134         {
 135                 .name   = "Partition 2",
 136                 .offset = MTDPART_OFS_NXTBLK,
 137                 .size   = MTDPART_SIZ_FULL,
 138         },
 139 };
 140
 141 /* det_pin is not connected */
 142 static struct atmel_nand_data __initdata ek_nand_data = {
 143         .ale            = 21,
 144         .cle            = 22,
 145         .rdy_pin        = AT91_PIN_PC8,
 146         .enable_pin     = AT91_PIN_PC14,
 147         .det_pin        = -EINVAL,
 148         .ecc_mode       = NAND_ECC_SOFT,
 149         .on_flash_bbt   = 1,
 150         .parts          = ek_nand_partition,
 151         .num_parts      = ARRAY_SIZE(ek_nand_partition),
 152 };
 153
 154 static struct sam9_smc_config __initdata ek_nand_smc_config = {
 155         .ncs_read_setup         = 0,
 156         .nrd_setup              = 2,
 157         .ncs_write_setup        = 0,
 158         .nwe_setup              = 2,
 159
 160         .ncs_read_pulse         = 4,
 161         .nrd_pulse              = 4,
 162         .ncs_write_pulse        = 4,
 163         .nwe_pulse              = 4,
 164
 165         .read_cycle             = 7,
 166         .write_cycle            = 7,
 167
 168         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
 169         .tdf_cycles             = 3,
 170 };
 171
 172 static void __init ek_add_device_nand(void)
 173 {
 174         ek_nand_data.bus_width_16 = board_have_nand_16bit();
 175         /* setup bus-width (8 or 16) */
 176         if (ek_nand_data.bus_width_16)
 177                 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
 178         else
 179                 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
 180
 181         /* configure chip-select 3 (NAND) */
 182         sam9_smc_configure(0, 3, &ek_nand_smc_config);
 183
 184         at91_add_device_nand(&ek_nand_data);
 185 }
 186
 187
 188 /*
 189  *  ISI
 190  */
 191 static struct isi_platform_data __initdata isi_data = {
 192         .frate                  = ISI_CFG1_FRATE_CAPTURE_ALL,
 193         /* to use codec and preview path simultaneously */
 194         .full_mode              = 1,
 195         .data_width_flags       = ISI_DATAWIDTH_8 | ISI_DATAWIDTH_10,
 196         /* ISI_MCK is provided by programmable clock or external clock */
 197         .mck_hz                 = 25000000,
 198 };
 199
 200
 201 /*
 202  * soc-camera OV2640
 203  */
 204 #if defined(CONFIG_SOC_CAMERA_OV2640) || \
 205         defined(CONFIG_SOC_CAMERA_OV2640_MODULE)
 206 static unsigned long isi_camera_query_bus_param(struct soc_camera_link *link)
 207 {
 208         /* ISI board for ek using default 8-bits connection */
 209         return SOCAM_DATAWIDTH_8;
 210 }
 211
 212 static int i2c_camera_power(struct device *dev, int on)
 213 {
 214         /* enable or disable the camera */
 215         pr_debug("%s: %s the camera\n", __func__, on ? "ENABLE" : "DISABLE");
 216         at91_set_gpio_output(AT91_PIN_PD13, !on);
 217
 218         if (!on)
 219                 goto out;
 220
 221         /* If enabled, give a reset impulse */
 222         at91_set_gpio_output(AT91_PIN_PD12, 0);
 223         msleep(20);
 224         at91_set_gpio_output(AT91_PIN_PD12, 1);
 225         msleep(100);
 226
 227 out:
 228         return 0;
 229 }
 230
 231 static struct i2c_board_info i2c_camera = {
 232         I2C_BOARD_INFO("ov2640", 0x30),
 233 };
 234
 235 static struct soc_camera_link iclink_ov2640 = {
 236         .bus_id                 = 0,
 237         .board_info             = &i2c_camera,
 238         .i2c_adapter_id         = 0,
 239         .power                  = i2c_camera_power,
 240         .query_bus_param        = isi_camera_query_bus_param,
 241 };
 242
 243 static struct platform_device isi_ov2640 = {
 244         .name   = "soc-camera-pdrv",
 245         .id     = 0,
 246         .dev    = {
 247                 .platform_data = &iclink_ov2640,
 248         },
 249 };
 250 #endif
 251
 252
 253 /*
 254  * LCD Controller
 255  */
 256 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 257 static struct fb_videomode at91_tft_vga_modes[] = {
 258         {
 259                 .name           = "LG",
 260                 .refresh        = 60,
 261                 .xres           = 480,          .yres           = 272,
 262                 .pixclock       = KHZ2PICOS(9000),
 263
 264                 .left_margin    = 1,            .right_margin   = 1,
 265                 .upper_margin   = 40,           .lower_margin   = 1,
 266                 .hsync_len      = 45,           .vsync_len      = 1,
 267
 268                 .sync           = 0,
 269                 .vmode          = FB_VMODE_NONINTERLACED,
 270         },
 271 };
 272
 273 static struct fb_monspecs at91fb_default_monspecs = {
 274         .manufacturer   = "LG",
 275         .monitor        = "LB043WQ1",
 276
 277         .modedb         = at91_tft_vga_modes,
 278         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 279         .hfmin          = 15000,
 280         .hfmax          = 17640,
 281         .vfmin          = 57,
 282         .vfmax          = 67,
 283 };
 284
 285 #define AT91SAM9G45_DEFAULT_LCDCON2     (ATMEL_LCDC_MEMOR_LITTLE \
 286                                         | ATMEL_LCDC_DISTYPE_TFT \
 287                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 288
 289 /* Driver datas */
 290 static struct atmel_lcdfb_pdata __initdata ek_lcdc_data = {
 291         .lcdcon_is_backlight            = true,
 292         .default_bpp                    = 32,
 293         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 294         .default_lcdcon2                = AT91SAM9G45_DEFAULT_LCDCON2,
 295         .default_monspecs               = &at91fb_default_monspecs,
 296         .guard_time                     = 9,
 297         .lcd_wiring_mode                = ATMEL_LCDC_WIRING_RGB,
 298 };
 299
 300 #else
 301 static struct atmel_lcdfb_pdata __initdata ek_lcdc_data;
 302 #endif
 303
 304
 305 /*
 306  * ADCs and touchscreen
 307  */
 308 static struct at91_adc_data ek_adc_data = {
 309         .channels_used = BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6) | BIT(7),
 310         .use_external_triggers = true,
 311         .vref = 3300,
 312         .touchscreen_type = ATMEL_ADC_TOUCHSCREEN_4WIRE,
 313 };
 314
 315 /*
 316  * GPIO Buttons
 317  */
 318 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 319 static struct gpio_keys_button ek_buttons[] = {
 320         {       /* BP1, "leftclic" */
 321                 .code           = BTN_LEFT,
 322                 .gpio           = AT91_PIN_PB6,
 323                 .active_low     = 1,
 324                 .desc           = "left_click",
 325                 .wakeup         = 1,
 326         },
 327         {       /* BP2, "rightclic" */
 328                 .code           = BTN_RIGHT,
 329                 .gpio           = AT91_PIN_PB7,
 330                 .active_low     = 1,
 331                 .desc           = "right_click",
 332                 .wakeup         = 1,
 333         },
 334                 /* BP3, "joystick" */
 335         {
 336                 .code           = KEY_LEFT,
 337                 .gpio           = AT91_PIN_PB14,
 338                 .active_low     = 1,
 339                 .desc           = "Joystick Left",
 340         },
 341         {
 342                 .code           = KEY_RIGHT,
 343                 .gpio           = AT91_PIN_PB15,
 344                 .active_low     = 1,
 345                 .desc           = "Joystick Right",
 346         },
 347         {
 348                 .code           = KEY_UP,
 349                 .gpio           = AT91_PIN_PB16,
 350                 .active_low     = 1,
 351                 .desc           = "Joystick Up",
 352         },
 353         {
 354                 .code           = KEY_DOWN,
 355                 .gpio           = AT91_PIN_PB17,
 356                 .active_low     = 1,
 357                 .desc           = "Joystick Down",
 358         },
 359         {
 360                 .code           = KEY_ENTER,
 361                 .gpio           = AT91_PIN_PB18,
 362                 .active_low     = 1,
 363                 .desc           = "Joystick Press",
 364         },
 365 };
 366
 367 static struct gpio_keys_platform_data ek_button_data = {
 368         .buttons        = ek_buttons,
 369         .nbuttons       = ARRAY_SIZE(ek_buttons),
 370 };
 371
 372 static struct platform_device ek_button_device = {
 373         .name           = "gpio-keys",
 374         .id             = -1,
 375         .num_resources  = 0,
 376         .dev            = {
 377                 .platform_data  = &ek_button_data,
 378         }
 379 };
 380
 381 static void __init ek_add_device_buttons(void)
 382 {
 383         int i;
 384
 385         for (i = 0; i < ARRAY_SIZE(ek_buttons); i++) {
 386                 at91_set_GPIO_periph(ek_buttons[i].gpio, 1);
 387                 at91_set_deglitch(ek_buttons[i].gpio, 1);
 388         }
 389
 390         platform_device_register(&ek_button_device);
 391 }
 392 #else
 393 static void __init ek_add_device_buttons(void) {}
 394 #endif
 395
 396
 397 /*
 398  * AC97
 399  * reset_pin is not connected: NRST
 400  */
 401 static struct ac97c_platform_data ek_ac97_data = {
 402         .reset_pin      = -EINVAL,
 403 };
 404
 405
 406 /*
 407  * LEDs ... these could all be PWM-driven, for variable brightness
 408  */
 409 static struct gpio_led ek_leds[] = {
 410         {       /* "top" led, red, powerled */
 411                 .name                   = "d8",
 412                 .gpio                   = AT91_PIN_PD30,
 413                 .default_trigger        = "heartbeat",
 414         },
 415         {       /* "left" led, green, userled2, pwm3 */
 416                 .name                   = "d6",
 417                 .gpio                   = AT91_PIN_PD0,
 418                 .active_low             = 1,
 419                 .default_trigger        = "nand-disk",
 420         },
 421 #if !IS_ENABLED(CONFIG_LEDS_PWM)
 422         {       /* "right" led, green, userled1, pwm1 */
 423                 .name                   = "d7",
 424                 .gpio                   = AT91_PIN_PD31,
 425                 .active_low             = 1,
 426                 .default_trigger        = "mmc0",
 427         },
 428 #endif
 429 };
 430
 431
 432 /*
 433  * PWM Leds
 434  */
 435 static struct pwm_lookup pwm_lookup[] = {
 436         PWM_LOOKUP("at91sam9rl-pwm", 1, "leds_pwm", "d7",
 437                    5000, PWM_POLARITY_INVERSED),
 438 };
 439
 440 #if IS_ENABLED(CONFIG_LEDS_PWM)
 441 static struct led_pwm pwm_leds[] = {
 442         {       /* "right" led, green, userled1, pwm1 */
 443                 .name = "d7",
 444                 .max_brightness = 255,
 445         },
 446 };
 447
 448 static struct led_pwm_platform_data pwm_data = {
 449         .num_leds       = ARRAY_SIZE(pwm_leds),
 450         .leds           = pwm_leds,
 451 };
 452
 453 static struct platform_device leds_pwm = {
 454         .name   = "leds_pwm",
 455         .id     = -1,
 456         .dev    = {
 457                 .platform_data = &pwm_data,
 458         },
 459 };
 460 #endif
 461
 462 static struct platform_device *devices[] __initdata = {
 463 #if defined(CONFIG_SOC_CAMERA_OV2640) || \
 464         defined(CONFIG_SOC_CAMERA_OV2640_MODULE)
 465         &isi_ov2640,
 466 #endif
 467 #if IS_ENABLED(CONFIG_LEDS_PWM)
 468         &leds_pwm,
 469 #endif
 470 };
 471
 472 static void __init ek_board_init(void)
 473 {
 474         /* Serial */
 475         /* DGBU on ttyS0. (Rx & Tx only) */
 476         at91_register_uart(0, 0, 0);
 477
 478         /* USART0 not connected on the -EK board */
 479         /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
 480         at91_register_uart(AT91SAM9G45_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
 481         at91_add_device_serial();
 482         /* USB HS Host */
 483         at91_add_device_usbh_ohci(&ek_usbh_hs_data);
 484         at91_add_device_usbh_ehci(&ek_usbh_hs_data);
 485         /* USB HS Device */
 486         at91_add_device_usba(&ek_usba_udc_data);
 487         /* SPI */
 488         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 489         /* MMC */
 490         at91_add_device_mci(0, &mci0_data);
 491         at91_add_device_mci(1, &mci1_data);
 492         /* Ethernet */
 493         at91_add_device_eth(&ek_macb_data);
 494         /* NAND */
 495         ek_add_device_nand();
 496         /* I2C */
 497         at91_add_device_i2c(0, NULL, 0);
 498         /* ISI, using programmable clock as ISI_MCK */
 499         at91_add_device_isi(&isi_data, true);
 500         /* LCD Controller */
 501         at91_add_device_lcdc(&ek_lcdc_data);
 502         /* ADC and touchscreen */
 503         at91_add_device_adc(&ek_adc_data);
 504         /* Push Buttons */
 505         ek_add_device_buttons();
 506         /* AC97 */
 507         at91_add_device_ac97(&ek_ac97_data);
 508         /* LEDs */
 509         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 510         pwm_add_table(pwm_lookup, ARRAY_SIZE(pwm_lookup));
 511 #if IS_ENABLED(CONFIG_LEDS_PWM)
 512         at91_add_device_pwm(1 << AT91_PWM1);
 513 #endif
 514         /* Other platform devices */
 515         platform_add_devices(devices, ARRAY_SIZE(devices));
 516 }
 517
 518 MACHINE_START(AT91SAM9M10G45EK, "Atmel AT91SAM9M10G45-EK")
 519         /* Maintainer: Atmel */
 520         .init_time      = at91sam926x_pit_init,
 521         .map_io         = at91_map_io,
 522         .handle_irq     = at91_aic_handle_irq,
 523         .init_early     = ek_init_early,
 524         .init_irq       = at91_init_irq_default,
 525         .init_machine   = ek_board_init,
 526 MACHINE_END