LXR linux/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
  30#include <linux/platform_data/at91_adc.h>
  31
  32#include <mach/hardware.h>
  33#include <video/atmel_lcdc.h>
  34#include <media/soc_camera.h>
  35#include <media/atmel-isi.h>
  36
  37#include <asm/setup.h>
  38#include <asm/mach-types.h>
  39#include <asm/irq.h>
  40
  41#include <asm/mach/arch.h>
  42#include <asm/mach/map.h>
  43#include <asm/mach/irq.h>
  44
  45#include <mach/at91sam9_smc.h>
  46#include <mach/system_rev.h>
  47
  48#include "at91_aic.h"
  49#include "at91_shdwc.h"
  50#include "board.h"
  51#include "sam9_smc.h"
  52#include "generic.h"
  53#include "gpio.h"
  54
  55
  56static void __init ek_init_early(void)
  57{
  58        /* Initialize processor: 12.000 MHz crystal */
  59        at91_initialize(12000000);
  60}
  61
  62/*
  63 * USB HS Host port (common to OHCI & EHCI)
  64 */
  65static struct at91_usbh_data __initdata ek_usbh_hs_data = {
  66        .ports          = 2,
  67        .vbus_pin       = {AT91_PIN_PD1, AT91_PIN_PD3},
  68        .vbus_pin_active_low = {1, 1},
  69        .overcurrent_pin= {-EINVAL, -EINVAL},
  70};
  71
  72
  73/*
  74 * USB HS Device port
  75 */
  76static struct usba_platform_data __initdata ek_usba_udc_data = {
  77        .vbus_pin       = AT91_PIN_PB19,
  78};
  79
  80
  81/*
  82 * SPI devices.
  83 */
  84static struct spi_board_info ek_spi_devices[] = {
  85        {       /* DataFlash chip */
  86                .modalias       = "mtd_dataflash",
  87                .chip_select    = 0,
  88                .max_speed_hz   = 15 * 1000 * 1000,
  89                .bus_num        = 0,
  90        },
  91};
  92
  93
  94/*
  95 * MCI (SD/MMC)
  96 */
  97static struct mci_platform_data __initdata mci0_data = {
  98        .slot[0] = {
  99                .bus_width      = 4,
 100                .detect_pin     = AT91_PIN_PD10,
 101                .wp_pin         = -EINVAL,
 102        },
 103};
 104
 105static struct mci_platform_data __initdata mci1_data = {
 106        .slot[0] = {
 107                .bus_width      = 4,
 108                .detect_pin     = AT91_PIN_PD11,
 109                .wp_pin         = AT91_PIN_PD29,
 110        },
 111};
 112
 113
 114/*
 115 * MACB Ethernet device
 116 */
 117static struct macb_platform_data __initdata ek_macb_data = {
 118        .phy_irq_pin    = AT91_PIN_PD5,
 119        .is_rmii        = 1,
 120};
 121
 122
 123/*
 124 * NAND flash
 125 */
 126static struct mtd_partition __initdata ek_nand_partition[] = {
 127        {
 128                .name   = "Partition 1",
 129                .offset = 0,
 130                .size   = SZ_64M,
 131        },
 132        {
 133                .name   = "Partition 2",
 134                .offset = MTDPART_OFS_NXTBLK,
 135                .size   = MTDPART_SIZ_FULL,
 136        },
 137};
 138
 139/* det_pin is not connected */
 140static struct atmel_nand_data __initdata ek_nand_data = {
 141        .ale            = 21,
 142        .cle            = 22,
 143        .rdy_pin        = AT91_PIN_PC8,
 144        .enable_pin     = AT91_PIN_PC14,
 145        .det_pin        = -EINVAL,
 146        .ecc_mode       = NAND_ECC_SOFT,
 147        .on_flash_bbt   = 1,
 148        .parts          = ek_nand_partition,
 149        .num_parts      = ARRAY_SIZE(ek_nand_partition),
 150};
 151
 152static struct sam9_smc_config __initdata ek_nand_smc_config = {
 153        .ncs_read_setup         = 0,
 154        .nrd_setup              = 2,
 155        .ncs_write_setup        = 0,
 156        .nwe_setup              = 2,
 157
 158        .ncs_read_pulse         = 4,
 159        .nrd_pulse              = 4,
 160        .ncs_write_pulse        = 4,
 161        .nwe_pulse              = 4,
 162
 163        .read_cycle             = 7,
 164        .write_cycle            = 7,
 165
 166        .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
 167        .tdf_cycles             = 3,
 168};
 169
 170static void __init ek_add_device_nand(void)
 171{
 172        ek_nand_data.bus_width_16 = board_have_nand_16bit();
 173        /* setup bus-width (8 or 16) */
 174        if (ek_nand_data.bus_width_16)
 175                ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
 176        else
 177                ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
 178
 179        /* configure chip-select 3 (NAND) */
 180        sam9_smc_configure(0, 3, &ek_nand_smc_config);
 181
 182        at91_add_device_nand(&ek_nand_data);
 183}
 184
 185
 186/*
 187 *  ISI
 188 */
 189static struct isi_platform_data __initdata isi_data = {
 190        .frate                  = ISI_CFG1_FRATE_CAPTURE_ALL,
 191        /* to use codec and preview path simultaneously */
 192        .full_mode              = 1,
 193        .data_width_flags       = ISI_DATAWIDTH_8 | ISI_DATAWIDTH_10,
 194        /* ISI_MCK is provided by programmable clock or external clock */
 195        .mck_hz                 = 25000000,
 196};
 197
 198
 199/*
 200 * soc-camera OV2640
 201 */
 202#if defined(CONFIG_SOC_CAMERA_OV2640) || \
 203        defined(CONFIG_SOC_CAMERA_OV2640_MODULE)
 204static unsigned long isi_camera_query_bus_param(struct soc_camera_link *link)
 205{
 206        /* ISI board for ek using default 8-bits connection */
 207        return SOCAM_DATAWIDTH_8;
 208}
 209
 210static int i2c_camera_power(struct device *dev, int on)
 211{
 212        /* enable or disable the camera */
 213        pr_debug("%s: %s the camera\n", __func__, on ? "ENABLE" : "DISABLE");
 214        at91_set_gpio_output(AT91_PIN_PD13, !on);
 215
 216        if (!on)
 217                goto out;
 218
 219        /* If enabled, give a reset impulse */
 220        at91_set_gpio_output(AT91_PIN_PD12, 0);
 221        msleep(20);
 222        at91_set_gpio_output(AT91_PIN_PD12, 1);
 223        msleep(100);
 224
 225out:
 226        return 0;
 227}
 228
 229static struct i2c_board_info i2c_camera = {
 230        I2C_BOARD_INFO("ov2640", 0x30),
 231};
 232
 233static struct soc_camera_link iclink_ov2640 = {
 234        .bus_id                 = 0,
 235        .board_info             = &i2c_camera,
 236        .i2c_adapter_id         = 0,
 237        .power                  = i2c_camera_power,
 238        .query_bus_param        = isi_camera_query_bus_param,
 239};
 240
 241static struct platform_device isi_ov2640 = {
 242        .name   = "soc-camera-pdrv",
 243        .id     = 0,
 244        .dev    = {
 245                .platform_data = &iclink_ov2640,
 246        },
 247};
 248#endif
 249
 250
 251/*
 252 * LCD Controller
 253 */
 254#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 255static struct fb_videomode at91_tft_vga_modes[] = {
 256        {
 257                .name           = "LG",
 258                .refresh        = 60,
 259                .xres           = 480,          .yres           = 272,
 260                .pixclock       = KHZ2PICOS(9000),
 261
 262                .left_margin    = 1,            .right_margin   = 1,
 263                .upper_margin   = 40,           .lower_margin   = 1,
 264                .hsync_len      = 45,           .vsync_len      = 1,
 265
 266                .sync           = 0,
 267                .vmode          = FB_VMODE_NONINTERLACED,
 268        },
 269};
 270
 271static struct fb_monspecs at91fb_default_monspecs = {
 272        .manufacturer   = "LG",
 273        .monitor        = "LB043WQ1",
 274
 275        .modedb         = at91_tft_vga_modes,
 276        .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 277        .hfmin          = 15000,
 278        .hfmax          = 17640,
 279        .vfmin          = 57,
 280        .vfmax          = 67,
 281};
 282
 283#define AT91SAM9G45_DEFAULT_LCDCON2     (ATMEL_LCDC_MEMOR_LITTLE \
 284                                        | ATMEL_LCDC_DISTYPE_TFT \
 285                                        | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 286
 287/* Driver datas */
 288static struct atmel_lcdfb_pdata __initdata ek_lcdc_data = {
 289        .lcdcon_is_backlight            = true,
 290        .default_bpp                    = 32,
 291        .default_dmacon                 = ATMEL_LCDC_DMAEN,
 292        .default_lcdcon2                = AT91SAM9G45_DEFAULT_LCDCON2,
 293        .default_monspecs               = &at91fb_default_monspecs,
 294        .guard_time                     = 9,
 295        .lcd_wiring_mode                = ATMEL_LCDC_WIRING_RGB,
 296};
 297
 298#else
 299static struct atmel_lcdfb_pdata __initdata ek_lcdc_data;
 300#endif
 301
 302
 303/*
 304 * ADCs and touchscreen
 305 */
 306static struct at91_adc_data ek_adc_data = {
 307        .channels_used = BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6) | BIT(7),
 308        .use_external_triggers = true,
 309        .vref = 3300,
 310        .touchscreen_type = ATMEL_ADC_TOUCHSCREEN_4WIRE,
 311};
 312
 313/*
 314 * GPIO Buttons
 315 */
 316#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 317static struct gpio_keys_button ek_buttons[] = {
 318        {       /* BP1, "leftclic" */
 319                .code           = BTN_LEFT,
 320                .gpio           = AT91_PIN_PB6,
 321                .active_low     = 1,
 322                .desc           = "left_click",
 323                .wakeup         = 1,
 324        },
 325        {       /* BP2, "rightclic" */
 326                .code           = BTN_RIGHT,
 327                .gpio           = AT91_PIN_PB7,
 328                .active_low     = 1,
 329                .desc           = "right_click",
 330                .wakeup         = 1,
 331        },
 332                /* BP3, "joystick" */
 333        {
 334                .code           = KEY_LEFT,
 335                .gpio           = AT91_PIN_PB14,
 336                .active_low     = 1,
 337                .desc           = "Joystick Left",
 338        },
 339        {
 340                .code           = KEY_RIGHT,
 341                .gpio           = AT91_PIN_PB15,
 342                .active_low     = 1,
 343                .desc           = "Joystick Right",
 344        },
 345        {
 346                .code           = KEY_UP,
 347                .gpio           = AT91_PIN_PB16,
 348                .active_low     = 1,
 349                .desc           = "Joystick Up",
 350        },
 351        {
 352                .code           = KEY_DOWN,
 353                .gpio           = AT91_PIN_PB17,
 354                .active_low     = 1,
 355                .desc           = "Joystick Down",
 356        },
 357        {
 358                .code           = KEY_ENTER,
 359                .gpio           = AT91_PIN_PB18,
 360                .active_low     = 1,
 361                .desc           = "Joystick Press",
 362        },
 363};
 364
 365static struct gpio_keys_platform_data ek_button_data = {
 366        .buttons        = ek_buttons,
 367        .nbuttons       = ARRAY_SIZE(ek_buttons),
 368};
 369
 370static struct platform_device ek_button_device = {
 371        .name           = "gpio-keys",
 372        .id             = -1,
 373        .num_resources  = 0,
 374        .dev            = {
 375                .platform_data  = &ek_button_data,
 376        }
 377};
 378
 379static void __init ek_add_device_buttons(void)
 380{
 381        int i;
 382
 383        for (i = 0; i < ARRAY_SIZE(ek_buttons); i++) {
 384                at91_set_GPIO_periph(ek_buttons[i].gpio, 1);
 385                at91_set_deglitch(ek_buttons[i].gpio, 1);
 386        }
 387
 388        platform_device_register(&ek_button_device);
 389}
 390#else
 391static void __init ek_add_device_buttons(void) {}
 392#endif
 393
 394
 395/*
 396 * AC97
 397 * reset_pin is not connected: NRST
 398 */
 399static struct ac97c_platform_data ek_ac97_data = {
 400        .reset_pin      = -EINVAL,
 401};
 402
 403
 404/*
 405 * LEDs ... these could all be PWM-driven, for variable brightness
 406 */
 407static struct gpio_led ek_leds[] = {
 408        {       /* "top" led, red, powerled */
 409                .name                   = "d8",
 410                .gpio                   = AT91_PIN_PD30,
 411                .default_trigger        = "heartbeat",
 412        },
 413        {       /* "left" led, green, userled2, pwm3 */
 414                .name                   = "d6",
 415                .gpio                   = AT91_PIN_PD0,
 416                .active_low             = 1,
 417                .default_trigger        = "nand-disk",
 418        },
 419#if !(defined(CONFIG_LEDS_ATMEL_PWM) || defined(CONFIG_LEDS_ATMEL_PWM_MODULE))
 420        {       /* "right" led, green, userled1, pwm1 */
 421                .name                   = "d7",
 422                .gpio                   = AT91_PIN_PD31,
 423                .active_low             = 1,
 424                .default_trigger        = "mmc0",
 425        },
 426#endif
 427};
 428
 429
 430/*
 431 * PWM Leds
 432 */
 433static struct gpio_led ek_pwm_led[] = {
 434#if defined(CONFIG_LEDS_ATMEL_PWM) || defined(CONFIG_LEDS_ATMEL_PWM_MODULE)
 435        {       /* "right" led, green, userled1, pwm1 */
 436                .name                   = "d7",
 437                .gpio                   = 1,    /* is PWM channel number */
 438                .active_low             = 1,
 439                .default_trigger        = "none",
 440        },
 441#endif
 442};
 443
 444static struct platform_device *devices[] __initdata = {
 445#if defined(CONFIG_SOC_CAMERA_OV2640) || \
 446        defined(CONFIG_SOC_CAMERA_OV2640_MODULE)
 447        &isi_ov2640,
 448#endif
 449};
 450
 451static void __init ek_board_init(void)
 452{
 453        /* Serial */
 454        /* DGBU on ttyS0. (Rx & Tx only) */
 455        at91_register_uart(0, 0, 0);
 456
 457        /* USART0 not connected on the -EK board */
 458        /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
 459        at91_register_uart(AT91SAM9G45_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
 460        at91_add_device_serial();
 461        /* USB HS Host */
 462        at91_add_device_usbh_ohci(&ek_usbh_hs_data);
 463        at91_add_device_usbh_ehci(&ek_usbh_hs_data);
 464        /* USB HS Device */
 465        at91_add_device_usba(&ek_usba_udc_data);
 466        /* SPI */
 467        at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 468        /* MMC */
 469        at91_add_device_mci(0, &mci0_data);
 470        at91_add_device_mci(1, &mci1_data);
 471        /* Ethernet */
 472        at91_add_device_eth(&ek_macb_data);
 473        /* NAND */
 474        ek_add_device_nand();
 475        /* I2C */
 476        at91_add_device_i2c(0, NULL, 0);
 477        /* ISI, using programmable clock as ISI_MCK */
 478        at91_add_device_isi(&isi_data, true);
 479        /* LCD Controller */
 480        at91_add_device_lcdc(&ek_lcdc_data);
 481        /* ADC and touchscreen */
 482        at91_add_device_adc(&ek_adc_data);
 483        /* Push Buttons */
 484        ek_add_device_buttons();
 485        /* AC97 */
 486        at91_add_device_ac97(&ek_ac97_data);
 487        /* LEDs */
 488        at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 489        at91_pwm_leds(ek_pwm_led, ARRAY_SIZE(ek_pwm_led));
 490        /* Other platform devices */
 491        platform_add_devices(devices, ARRAY_SIZE(devices));
 492}
 493
 494MACHINE_START(AT91SAM9M10G45EK, "Atmel AT91SAM9M10G45-EK")
 495        /* Maintainer: Atmel */
 496        .init_time      = at91sam926x_pit_init,
 497        .map_io         = at91_map_io,
 498        .handle_irq     = at91_aic_handle_irq,
 499        .init_early     = ek_init_early,
 500        .init_irq       = at91_init_irq_default,
 501        .init_machine   = ek_board_init,
 502MACHINE_END
 503