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 "board.h"
  52 #include "sam9_smc.h"
  53 #include "generic.h"
  54 #include "gpio.h"
  55
  56
  57 static void __init ek_init_early(void)
  58 {
  59         /* Initialize processor: 12.000 MHz crystal */
  60         at91_initialize(12000000);
  61 }
  62
  63 /*
  64  * USB HS Host port (common to OHCI & EHCI)
  65  */
  66 static struct at91_usbh_data __initdata ek_usbh_hs_data = {
  67         .ports          = 2,
  68         .vbus_pin       = {AT91_PIN_PD1, AT91_PIN_PD3},
  69         .vbus_pin_active_low = {1, 1},
  70         .overcurrent_pin= {-EINVAL, -EINVAL},
  71 };
  72
  73
  74 /*
  75  * USB HS Device port
  76  */
  77 static struct usba_platform_data __initdata ek_usba_udc_data = {
  78         .vbus_pin       = AT91_PIN_PB19,
  79 };
  80
  81
  82 /*
  83  * SPI devices.
  84  */
  85 static struct spi_board_info ek_spi_devices[] = {
  86         {       /* DataFlash chip */
  87                 .modalias       = "mtd_dataflash",
  88                 .chip_select    = 0,
  89                 .max_speed_hz   = 15 * 1000 * 1000,
  90                 .bus_num        = 0,
  91         },
  92 };
  93
  94
  95 /*
  96  * MCI (SD/MMC)
  97  */
  98 static struct mci_platform_data __initdata mci0_data = {
  99         .slot[0] = {
 100                 .bus_width      = 4,
 101                 .detect_pin     = AT91_PIN_PD10,
 102                 .wp_pin         = -EINVAL,
 103         },
 104 };
 105
 106 static struct mci_platform_data __initdata mci1_data = {
 107         .slot[0] = {
 108                 .bus_width      = 4,
 109                 .detect_pin     = AT91_PIN_PD11,
 110                 .wp_pin         = AT91_PIN_PD29,
 111         },
 112 };
 113
 114
 115 /*
 116  * MACB Ethernet device
 117  */
 118 static struct macb_platform_data __initdata ek_macb_data = {
 119         .phy_irq_pin    = AT91_PIN_PD5,
 120         .is_rmii        = 1,
 121 };
 122
 123
 124 /*
 125  * NAND flash
 126  */
 127 static struct mtd_partition __initdata ek_nand_partition[] = {
 128         {
 129                 .name   = "Partition 1",
 130                 .offset = 0,
 131                 .size   = SZ_64M,
 132         },
 133         {
 134                 .name   = "Partition 2",
 135                 .offset = MTDPART_OFS_NXTBLK,
 136                 .size   = MTDPART_SIZ_FULL,
 137         },
 138 };
 139
 140 /* det_pin is not connected */
 141 static struct atmel_nand_data __initdata ek_nand_data = {
 142         .ale            = 21,
 143         .cle            = 22,
 144         .rdy_pin        = AT91_PIN_PC8,
 145         .enable_pin     = AT91_PIN_PC14,
 146         .det_pin        = -EINVAL,
 147         .ecc_mode       = NAND_ECC_SOFT,
 148         .on_flash_bbt   = 1,
 149         .parts          = ek_nand_partition,
 150         .num_parts      = ARRAY_SIZE(ek_nand_partition),
 151 };
 152
 153 static struct sam9_smc_config __initdata ek_nand_smc_config = {
 154         .ncs_read_setup         = 0,
 155         .nrd_setup              = 2,
 156         .ncs_write_setup        = 0,
 157         .nwe_setup              = 2,
 158
 159         .ncs_read_pulse         = 4,
 160         .nrd_pulse              = 4,
 161         .ncs_write_pulse        = 4,
 162         .nwe_pulse              = 4,
 163
 164         .read_cycle             = 7,
 165         .write_cycle            = 7,
 166
 167         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
 168         .tdf_cycles             = 3,
 169 };
 170
 171 static void __init ek_add_device_nand(void)
 172 {
 173         ek_nand_data.bus_width_16 = board_have_nand_16bit();
 174         /* setup bus-width (8 or 16) */
 175         if (ek_nand_data.bus_width_16)
 176                 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
 177         else
 178                 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
 179
 180         /* configure chip-select 3 (NAND) */
 181         sam9_smc_configure(0, 3, &ek_nand_smc_config);
 182
 183         at91_add_device_nand(&ek_nand_data);
 184 }
 185
 186
 187 /*
 188  *  ISI
 189  */
 190 static struct isi_platform_data __initdata isi_data = {
 191         .frate                  = ISI_CFG1_FRATE_CAPTURE_ALL,
 192         /* to use codec and preview path simultaneously */
 193         .full_mode              = 1,
 194         .data_width_flags       = ISI_DATAWIDTH_8 | ISI_DATAWIDTH_10,
 195         /* ISI_MCK is provided by programmable clock or external clock */
 196         .mck_hz                 = 25000000,
 197 };
 198
 199
 200 /*
 201  * soc-camera OV2640
 202  */
 203 #if defined(CONFIG_SOC_CAMERA_OV2640) || \
 204         defined(CONFIG_SOC_CAMERA_OV2640_MODULE)
 205 static unsigned long isi_camera_query_bus_param(struct soc_camera_link *link)
 206 {
 207         /* ISI board for ek using default 8-bits connection */
 208         return SOCAM_DATAWIDTH_8;
 209 }
 210
 211 static int i2c_camera_power(struct device *dev, int on)
 212 {
 213         /* enable or disable the camera */
 214         pr_debug("%s: %s the camera\n", __func__, on ? "ENABLE" : "DISABLE");
 215         at91_set_gpio_output(AT91_PIN_PD13, !on);
 216
 217         if (!on)
 218                 goto out;
 219
 220         /* If enabled, give a reset impulse */
 221         at91_set_gpio_output(AT91_PIN_PD12, 0);
 222         msleep(20);
 223         at91_set_gpio_output(AT91_PIN_PD12, 1);
 224         msleep(100);
 225
 226 out:
 227         return 0;
 228 }
 229
 230 static struct i2c_board_info i2c_camera = {
 231         I2C_BOARD_INFO("ov2640", 0x30),
 232 };
 233
 234 static struct soc_camera_link iclink_ov2640 = {
 235         .bus_id                 = 0,
 236         .board_info             = &i2c_camera,
 237         .i2c_adapter_id         = 0,
 238         .power                  = i2c_camera_power,
 239         .query_bus_param        = isi_camera_query_bus_param,
 240 };
 241
 242 static struct platform_device isi_ov2640 = {
 243         .name   = "soc-camera-pdrv",
 244         .id     = 0,
 245         .dev    = {
 246                 .platform_data = &iclink_ov2640,
 247         },
 248 };
 249 #endif
 250
 251
 252 /*
 253  * LCD Controller
 254  */
 255 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 256 static struct fb_videomode at91_tft_vga_modes[] = {
 257         {
 258                 .name           = "LG",
 259                 .refresh        = 60,
 260                 .xres           = 480,          .yres           = 272,
 261                 .pixclock       = KHZ2PICOS(9000),
 262
 263                 .left_margin    = 1,            .right_margin   = 1,
 264                 .upper_margin   = 40,           .lower_margin   = 1,
 265                 .hsync_len      = 45,           .vsync_len      = 1,
 266
 267                 .sync           = 0,
 268                 .vmode          = FB_VMODE_NONINTERLACED,
 269         },
 270 };
 271
 272 static struct fb_monspecs at91fb_default_monspecs = {
 273         .manufacturer   = "LG",
 274         .monitor        = "LB043WQ1",
 275
 276         .modedb         = at91_tft_vga_modes,
 277         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 278         .hfmin          = 15000,
 279         .hfmax          = 17640,
 280         .vfmin          = 57,
 281         .vfmax          = 67,
 282 };
 283
 284 #define AT91SAM9G45_DEFAULT_LCDCON2     (ATMEL_LCDC_MEMOR_LITTLE \
 285                                         | ATMEL_LCDC_DISTYPE_TFT \
 286                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 287
 288 /* Driver datas */
 289 static struct atmel_lcdfb_pdata __initdata ek_lcdc_data = {
 290         .lcdcon_is_backlight            = true,
 291         .default_bpp                    = 32,
 292         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 293         .default_lcdcon2                = AT91SAM9G45_DEFAULT_LCDCON2,
 294         .default_monspecs               = &at91fb_default_monspecs,
 295         .guard_time                     = 9,
 296         .lcd_wiring_mode                = ATMEL_LCDC_WIRING_RGB,
 297 };
 298
 299 #else
 300 static struct atmel_lcdfb_pdata __initdata ek_lcdc_data;
 301 #endif
 302
 303
 304 /*
 305  * ADCs and touchscreen
 306  */
 307 static struct at91_adc_data ek_adc_data = {
 308         .channels_used = BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6) | BIT(7),
 309         .use_external_triggers = true,
 310         .vref = 3300,
 311         .touchscreen_type = ATMEL_ADC_TOUCHSCREEN_4WIRE,
 312 };
 313
 314 /*
 315  * GPIO Buttons
 316  */
 317 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 318 static struct gpio_keys_button ek_buttons[] = {
 319         {       /* BP1, "leftclic" */
 320                 .code           = BTN_LEFT,
 321                 .gpio           = AT91_PIN_PB6,
 322                 .active_low     = 1,
 323                 .desc           = "left_click",
 324                 .wakeup         = 1,
 325         },
 326         {       /* BP2, "rightclic" */
 327                 .code           = BTN_RIGHT,
 328                 .gpio           = AT91_PIN_PB7,
 329                 .active_low     = 1,
 330                 .desc           = "right_click",
 331                 .wakeup         = 1,
 332         },
 333                 /* BP3, "joystick" */
 334         {
 335                 .code           = KEY_LEFT,
 336                 .gpio           = AT91_PIN_PB14,
 337                 .active_low     = 1,
 338                 .desc           = "Joystick Left",
 339         },
 340         {
 341                 .code           = KEY_RIGHT,
 342                 .gpio           = AT91_PIN_PB15,
 343                 .active_low     = 1,
 344                 .desc           = "Joystick Right",
 345         },
 346         {
 347                 .code           = KEY_UP,
 348                 .gpio           = AT91_PIN_PB16,
 349                 .active_low     = 1,
 350                 .desc           = "Joystick Up",
 351         },
 352         {
 353                 .code           = KEY_DOWN,
 354                 .gpio           = AT91_PIN_PB17,
 355                 .active_low     = 1,
 356                 .desc           = "Joystick Down",
 357         },
 358         {
 359                 .code           = KEY_ENTER,
 360                 .gpio           = AT91_PIN_PB18,
 361                 .active_low     = 1,
 362                 .desc           = "Joystick Press",
 363         },
 364 };
 365
 366 static struct gpio_keys_platform_data ek_button_data = {
 367         .buttons        = ek_buttons,
 368         .nbuttons       = ARRAY_SIZE(ek_buttons),
 369 };
 370
 371 static struct platform_device ek_button_device = {
 372         .name           = "gpio-keys",
 373         .id             = -1,
 374         .num_resources  = 0,
 375         .dev            = {
 376                 .platform_data  = &ek_button_data,
 377         }
 378 };
 379
 380 static void __init ek_add_device_buttons(void)
 381 {
 382         int i;
 383
 384         for (i = 0; i < ARRAY_SIZE(ek_buttons); i++) {
 385                 at91_set_GPIO_periph(ek_buttons[i].gpio, 1);
 386                 at91_set_deglitch(ek_buttons[i].gpio, 1);
 387         }
 388
 389         platform_device_register(&ek_button_device);
 390 }
 391 #else
 392 static void __init ek_add_device_buttons(void) {}
 393 #endif
 394
 395
 396 /*
 397  * AC97
 398  * reset_pin is not connected: NRST
 399  */
 400 static struct ac97c_platform_data ek_ac97_data = {
 401         .reset_pin      = -EINVAL,
 402 };
 403
 404
 405 /*
 406  * LEDs ... these could all be PWM-driven, for variable brightness
 407  */
 408 static struct gpio_led ek_leds[] = {
 409         {       /* "top" led, red, powerled */
 410                 .name                   = "d8",
 411                 .gpio                   = AT91_PIN_PD30,
 412                 .default_trigger        = "heartbeat",
 413         },
 414         {       /* "left" led, green, userled2, pwm3 */
 415                 .name                   = "d6",
 416                 .gpio                   = AT91_PIN_PD0,
 417                 .active_low             = 1,
 418                 .default_trigger        = "nand-disk",
 419         },
 420 #if !IS_ENABLED(CONFIG_LEDS_PWM)
 421         {       /* "right" led, green, userled1, pwm1 */
 422                 .name                   = "d7",
 423                 .gpio                   = AT91_PIN_PD31,
 424                 .active_low             = 1,
 425                 .default_trigger        = "mmc0",
 426         },
 427 #endif
 428 };
 429
 430
 431 /*
 432  * PWM Leds
 433  */
 434 static struct pwm_lookup pwm_lookup[] = {
 435         PWM_LOOKUP("at91sam9rl-pwm", 1, "leds_pwm", "d7",
 436                    5000, PWM_POLARITY_INVERSED),
 437 };
 438
 439 #if IS_ENABLED(CONFIG_LEDS_PWM)
 440 static struct led_pwm pwm_leds[] = {
 441         {       /* "right" led, green, userled1, pwm1 */
 442                 .name = "d7",
 443                 .max_brightness = 255,
 444         },
 445 };
 446
 447 static struct led_pwm_platform_data pwm_data = {
 448         .num_leds       = ARRAY_SIZE(pwm_leds),
 449         .leds           = pwm_leds,
 450 };
 451
 452 static struct platform_device leds_pwm = {
 453         .name   = "leds_pwm",
 454         .id     = -1,
 455         .dev    = {
 456                 .platform_data = &pwm_data,
 457         },
 458 };
 459 #endif
 460
 461 static struct platform_device *devices[] __initdata = {
 462 #if defined(CONFIG_SOC_CAMERA_OV2640) || \
 463         defined(CONFIG_SOC_CAMERA_OV2640_MODULE)
 464         &isi_ov2640,
 465 #endif
 466 #if IS_ENABLED(CONFIG_LEDS_PWM)
 467         &leds_pwm,
 468 #endif
 469 };
 470
 471 static void __init ek_board_init(void)
 472 {
 473         at91_register_devices();
 474
 475         /* Serial */
 476         /* DGBU on ttyS0. (Rx & Tx only) */
 477         at91_register_uart(0, 0, 0);
 478
 479         /* USART0 not connected on the -EK board */
 480         /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
 481         at91_register_uart(AT91SAM9G45_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
 482         at91_add_device_serial();
 483         /* USB HS Host */
 484         at91_add_device_usbh_ohci(&ek_usbh_hs_data);
 485         at91_add_device_usbh_ehci(&ek_usbh_hs_data);
 486         /* USB HS Device */
 487         at91_add_device_usba(&ek_usba_udc_data);
 488         /* SPI */
 489         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 490         /* MMC */
 491         at91_add_device_mci(0, &mci0_data);
 492         at91_add_device_mci(1, &mci1_data);
 493         /* Ethernet */
 494         at91_add_device_eth(&ek_macb_data);
 495         /* NAND */
 496         ek_add_device_nand();
 497         /* I2C */
 498         at91_add_device_i2c(0, NULL, 0);
 499         /* ISI, using programmable clock as ISI_MCK */
 500         at91_add_device_isi(&isi_data, true);
 501         /* LCD Controller */
 502         at91_add_device_lcdc(&ek_lcdc_data);
 503         /* ADC and touchscreen */
 504         at91_add_device_adc(&ek_adc_data);
 505         /* Push Buttons */
 506         ek_add_device_buttons();
 507         /* AC97 */
 508         at91_add_device_ac97(&ek_ac97_data);
 509         /* LEDs */
 510         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 511         pwm_add_table(pwm_lookup, ARRAY_SIZE(pwm_lookup));
 512 #if IS_ENABLED(CONFIG_LEDS_PWM)
 513         at91_add_device_pwm(1 << AT91_PWM1);
 514 #endif
 515         /* Other platform devices */
 516         platform_add_devices(devices, ARRAY_SIZE(devices));
 517 }
 518
 519 MACHINE_START(AT91SAM9M10G45EK, "Atmel AT91SAM9M10G45-EK")
 520         /* Maintainer: Atmel */
 521         .init_time      = at91_init_time,
 522         .map_io         = at91_map_io,
 523         .handle_irq     = at91_aic_handle_irq,
 524         .init_early     = ek_init_early,
 525         .init_irq       = at91_init_irq_default,
 526         .init_machine   = ek_board_init,
 527 MACHINE_END