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
  54
  55static void __init ek_init_early(void)
  56{
  57        /* Initialize processor: 12.000 MHz crystal */
  58        at91_initialize(12000000);
  59}
  60
  61/*
  62 * USB HS Host port (common to OHCI & EHCI)
  63 */
  64static struct at91_usbh_data __initdata ek_usbh_hs_data = {
  65        .ports          = 2,
  66        .vbus_pin       = {AT91_PIN_PD1, AT91_PIN_PD3},
  67        .vbus_pin_active_low = {1, 1},
  68        .overcurrent_pin= {-EINVAL, -EINVAL},
  69};
  70
  71
  72/*
  73 * USB HS Device port
  74 */
  75static struct usba_platform_data __initdata ek_usba_udc_data = {
  76        .vbus_pin       = AT91_PIN_PB19,
  77};
  78
  79
  80/*
  81 * SPI devices.
  82 */
  83static struct spi_board_info ek_spi_devices[] = {
  84        {       /* DataFlash chip */
  85                .modalias       = "mtd_dataflash",
  86                .chip_select    = 0,
  87                .max_speed_hz   = 15 * 1000 * 1000,
  88                .bus_num        = 0,
  89        },
  90};
  91
  92
  93/*
  94 * MCI (SD/MMC)
  95 */
  96static struct mci_platform_data __initdata mci0_data = {
  97        .slot[0] = {
  98                .bus_width      = 4,
  99                .detect_pin     = AT91_PIN_PD10,
 100                .wp_pin         = -EINVAL,
 101        },
 102};
 103
 104static struct mci_platform_data __initdata mci1_data = {
 105        .slot[0] = {
 106                .bus_width      = 4,
 107                .detect_pin     = AT91_PIN_PD11,
 108                .wp_pin         = AT91_PIN_PD29,
 109        },
 110};
 111
 112
 113/*
 114 * MACB Ethernet device
 115 */
 116static struct macb_platform_data __initdata ek_macb_data = {
 117        .phy_irq_pin    = AT91_PIN_PD5,
 118        .is_rmii        = 1,
 119};
 120
 121
 122/*
 123 * NAND flash
 124 */
 125static struct mtd_partition __initdata ek_nand_partition[] = {
 126        {
 127                .name   = "Partition 1",
 128                .offset = 0,
 129                .size   = SZ_64M,
 130        },
 131        {
 132                .name   = "Partition 2",
 133                .offset = MTDPART_OFS_NXTBLK,
 134                .size   = MTDPART_SIZ_FULL,
 135        },
 136};
 137
 138/* det_pin is not connected */
 139static struct atmel_nand_data __initdata ek_nand_data = {
 140        .ale            = 21,
 141        .cle            = 22,
 142        .rdy_pin        = AT91_PIN_PC8,
 143        .enable_pin     = AT91_PIN_PC14,
 144        .det_pin        = -EINVAL,
 145        .ecc_mode       = NAND_ECC_SOFT,
 146        .on_flash_bbt   = 1,
 147        .parts          = ek_nand_partition,
 148        .num_parts      = ARRAY_SIZE(ek_nand_partition),
 149};
 150
 151static struct sam9_smc_config __initdata ek_nand_smc_config = {
 152        .ncs_read_setup         = 0,
 153        .nrd_setup              = 2,
 154        .ncs_write_setup        = 0,
 155        .nwe_setup              = 2,
 156
 157        .ncs_read_pulse         = 4,
 158        .nrd_pulse              = 4,
 159        .ncs_write_pulse        = 4,
 160        .nwe_pulse              = 4,
 161
 162        .read_cycle             = 7,
 163        .write_cycle            = 7,
 164
 165        .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
 166        .tdf_cycles             = 3,
 167};
 168
 169static void __init ek_add_device_nand(void)
 170{
 171        ek_nand_data.bus_width_16 = board_have_nand_16bit();
 172        /* setup bus-width (8 or 16) */
 173        if (ek_nand_data.bus_width_16)
 174                ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
 175        else
 176                ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
 177
 178        /* configure chip-select 3 (NAND) */
 179        sam9_smc_configure(0, 3, &ek_nand_smc_config);
 180
 181        at91_add_device_nand(&ek_nand_data);
 182}
 183
 184
 185/*
 186 *  ISI
 187 */
 188static struct isi_platform_data __initdata isi_data = {
 189        .frate                  = ISI_CFG1_FRATE_CAPTURE_ALL,
 190        /* to use codec and preview path simultaneously */
 191        .full_mode              = 1,
 192        .data_width_flags       = ISI_DATAWIDTH_8 | ISI_DATAWIDTH_10,
 193        /* ISI_MCK is provided by programmable clock or external clock */
 194        .mck_hz                 = 25000000,
 195};
 196
 197
 198/*
 199 * soc-camera OV2640
 200 */
 201#if defined(CONFIG_SOC_CAMERA_OV2640) || \
 202        defined(CONFIG_SOC_CAMERA_OV2640_MODULE)
 203static unsigned long isi_camera_query_bus_param(struct soc_camera_link *link)
 204{
 205        /* ISI board for ek using default 8-bits connection */
 206        return SOCAM_DATAWIDTH_8;
 207}
 208
 209static int i2c_camera_power(struct device *dev, int on)
 210{
 211        /* enable or disable the camera */
 212        pr_debug("%s: %s the camera\n", __func__, on ? "ENABLE" : "DISABLE");
 213        at91_set_gpio_output(AT91_PIN_PD13, !on);
 214
 215        if (!on)
 216                goto out;
 217
 218        /* If enabled, give a reset impulse */
 219        at91_set_gpio_output(AT91_PIN_PD12, 0);
 220        msleep(20);
 221        at91_set_gpio_output(AT91_PIN_PD12, 1);
 222        msleep(100);
 223
 224out:
 225        return 0;
 226}
 227
 228static struct i2c_board_info i2c_camera = {
 229        I2C_BOARD_INFO("ov2640", 0x30),
 230};
 231
 232static struct soc_camera_link iclink_ov2640 = {
 233        .bus_id                 = 0,
 234        .board_info             = &i2c_camera,
 235        .i2c_adapter_id         = 0,
 236        .power                  = i2c_camera_power,
 237        .query_bus_param        = isi_camera_query_bus_param,
 238};
 239
 240static struct platform_device isi_ov2640 = {
 241        .name   = "soc-camera-pdrv",
 242        .id     = 0,
 243        .dev    = {
 244                .platform_data = &iclink_ov2640,
 245        },
 246};
 247#endif
 248
 249
 250/*
 251 * LCD Controller
 252 */
 253#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 254static struct fb_videomode at91_tft_vga_modes[] = {
 255        {
 256                .name           = "LG",
 257                .refresh        = 60,
 258                .xres           = 480,          .yres           = 272,
 259                .pixclock       = KHZ2PICOS(9000),
 260
 261                .left_margin    = 1,            .right_margin   = 1,
 262                .upper_margin   = 40,           .lower_margin   = 1,
 263                .hsync_len      = 45,           .vsync_len      = 1,
 264
 265                .sync           = 0,
 266                .vmode          = FB_VMODE_NONINTERLACED,
 267        },
 268};
 269
 270static struct fb_monspecs at91fb_default_monspecs = {
 271        .manufacturer   = "LG",
 272        .monitor        = "LB043WQ1",
 273
 274        .modedb         = at91_tft_vga_modes,
 275        .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 276        .hfmin          = 15000,
 277        .hfmax          = 17640,
 278        .vfmin          = 57,
 279        .vfmax          = 67,
 280};
 281
 282#define AT91SAM9G45_DEFAULT_LCDCON2     (ATMEL_LCDC_MEMOR_LITTLE \
 283                                        | ATMEL_LCDC_DISTYPE_TFT \
 284                                        | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 285
 286/* Driver datas */
 287static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 288        .lcdcon_is_backlight            = true,
 289        .default_bpp                    = 32,
 290        .default_dmacon                 = ATMEL_LCDC_DMAEN,
 291        .default_lcdcon2                = AT91SAM9G45_DEFAULT_LCDCON2,
 292        .default_monspecs               = &at91fb_default_monspecs,
 293        .guard_time                     = 9,
 294        .lcd_wiring_mode                = ATMEL_LCDC_WIRING_RGB,
 295};
 296
 297#else
 298static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 299#endif
 300
 301
 302/*
 303 * Touchscreen
 304 */
 305static struct at91_tsadcc_data ek_tsadcc_data = {
 306        .adc_clock              = 300000,
 307        .pendet_debounce        = 0x0d,
 308        .ts_sample_hold_time    = 0x0a,
 309};
 310
 311/*
 312 * ADCs
 313 */
 314static struct at91_adc_data ek_adc_data = {
 315        .channels_used = BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6) | BIT(7),
 316        .use_external_triggers = true,
 317        .vref = 3300,
 318};
 319
 320/*
 321 * GPIO Buttons
 322 */
 323#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 324static struct gpio_keys_button ek_buttons[] = {
 325        {       /* BP1, "leftclic" */
 326                .code           = BTN_LEFT,
 327                .gpio           = AT91_PIN_PB6,
 328                .active_low     = 1,
 329                .desc           = "left_click",
 330                .wakeup         = 1,
 331        },
 332        {       /* BP2, "rightclic" */
 333                .code           = BTN_RIGHT,
 334                .gpio           = AT91_PIN_PB7,
 335                .active_low     = 1,
 336                .desc           = "right_click",
 337                .wakeup         = 1,
 338        },
 339                /* BP3, "joystick" */
 340        {
 341                .code           = KEY_LEFT,
 342                .gpio           = AT91_PIN_PB14,
 343                .active_low     = 1,
 344                .desc           = "Joystick Left",
 345        },
 346        {
 347                .code           = KEY_RIGHT,
 348                .gpio           = AT91_PIN_PB15,
 349                .active_low     = 1,
 350                .desc           = "Joystick Right",
 351        },
 352        {
 353                .code           = KEY_UP,
 354                .gpio           = AT91_PIN_PB16,
 355                .active_low     = 1,
 356                .desc           = "Joystick Up",
 357        },
 358        {
 359                .code           = KEY_DOWN,
 360                .gpio           = AT91_PIN_PB17,
 361                .active_low     = 1,
 362                .desc           = "Joystick Down",
 363        },
 364        {
 365                .code           = KEY_ENTER,
 366                .gpio           = AT91_PIN_PB18,
 367                .active_low     = 1,
 368                .desc           = "Joystick Press",
 369        },
 370};
 371
 372static struct gpio_keys_platform_data ek_button_data = {
 373        .buttons        = ek_buttons,
 374        .nbuttons       = ARRAY_SIZE(ek_buttons),
 375};
 376
 377static struct platform_device ek_button_device = {
 378        .name           = "gpio-keys",
 379        .id             = -1,
 380        .num_resources  = 0,
 381        .dev            = {
 382                .platform_data  = &ek_button_data,
 383        }
 384};
 385
 386static void __init ek_add_device_buttons(void)
 387{
 388        int i;
 389
 390        for (i = 0; i < ARRAY_SIZE(ek_buttons); i++) {
 391                at91_set_GPIO_periph(ek_buttons[i].gpio, 1);
 392                at91_set_deglitch(ek_buttons[i].gpio, 1);
 393        }
 394
 395        platform_device_register(&ek_button_device);
 396}
 397#else
 398static void __init ek_add_device_buttons(void) {}
 399#endif
 400
 401
 402/*
 403 * AC97
 404 * reset_pin is not connected: NRST
 405 */
 406static struct ac97c_platform_data ek_ac97_data = {
 407        .reset_pin      = -EINVAL,
 408};
 409
 410
 411/*
 412 * LEDs ... these could all be PWM-driven, for variable brightness
 413 */
 414static struct gpio_led ek_leds[] = {
 415        {       /* "top" led, red, powerled */
 416                .name                   = "d8",
 417                .gpio                   = AT91_PIN_PD30,
 418                .default_trigger        = "heartbeat",
 419        },
 420        {       /* "left" led, green, userled2, pwm3 */
 421                .name                   = "d6",
 422                .gpio                   = AT91_PIN_PD0,
 423                .active_low             = 1,
 424                .default_trigger        = "nand-disk",
 425        },
 426#if !(defined(CONFIG_LEDS_ATMEL_PWM) || defined(CONFIG_LEDS_ATMEL_PWM_MODULE))
 427        {       /* "right" led, green, userled1, pwm1 */
 428                .name                   = "d7",
 429                .gpio                   = AT91_PIN_PD31,
 430                .active_low             = 1,
 431                .default_trigger        = "mmc0",
 432        },
 433#endif
 434};
 435
 436
 437/*
 438 * PWM Leds
 439 */
 440static struct gpio_led ek_pwm_led[] = {
 441#if defined(CONFIG_LEDS_ATMEL_PWM) || defined(CONFIG_LEDS_ATMEL_PWM_MODULE)
 442        {       /* "right" led, green, userled1, pwm1 */
 443                .name                   = "d7",
 444                .gpio                   = 1,    /* is PWM channel number */
 445                .active_low             = 1,
 446                .default_trigger        = "none",
 447        },
 448#endif
 449};
 450
 451static struct platform_device *devices[] __initdata = {
 452#if defined(CONFIG_SOC_CAMERA_OV2640) || \
 453        defined(CONFIG_SOC_CAMERA_OV2640_MODULE)
 454        &isi_ov2640,
 455#endif
 456};
 457
 458static void __init ek_board_init(void)
 459{
 460        /* Serial */
 461        /* DGBU on ttyS0. (Rx & Tx only) */
 462        at91_register_uart(0, 0, 0);
 463
 464        /* USART0 not connected on the -EK board */
 465        /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
 466        at91_register_uart(AT91SAM9G45_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
 467        at91_add_device_serial();
 468        /* USB HS Host */
 469        at91_add_device_usbh_ohci(&ek_usbh_hs_data);
 470        at91_add_device_usbh_ehci(&ek_usbh_hs_data);
 471        /* USB HS Device */
 472        at91_add_device_usba(&ek_usba_udc_data);
 473        /* SPI */
 474        at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 475        /* MMC */
 476        at91_add_device_mci(0, &mci0_data);
 477        at91_add_device_mci(1, &mci1_data);
 478        /* Ethernet */
 479        at91_add_device_eth(&ek_macb_data);
 480        /* NAND */
 481        ek_add_device_nand();
 482        /* I2C */
 483        at91_add_device_i2c(0, NULL, 0);
 484        /* ISI, using programmable clock as ISI_MCK */
 485        at91_add_device_isi(&isi_data, true);
 486        /* LCD Controller */
 487        at91_add_device_lcdc(&ek_lcdc_data);
 488        /* Touch Screen */
 489        at91_add_device_tsadcc(&ek_tsadcc_data);
 490        /* ADC */
 491        at91_add_device_adc(&ek_adc_data);
 492        /* Push Buttons */
 493        ek_add_device_buttons();
 494        /* AC97 */
 495        at91_add_device_ac97(&ek_ac97_data);
 496        /* LEDs */
 497        at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 498        at91_pwm_leds(ek_pwm_led, ARRAY_SIZE(ek_pwm_led));
 499        /* Other platform devices */
 500        platform_add_devices(devices, ARRAY_SIZE(devices));
 501}
 502
 503MACHINE_START(AT91SAM9M10G45EK, "Atmel AT91SAM9M10G45-EK")
 504        /* Maintainer: Atmel */
 505        .init_time      = at91sam926x_pit_init,
 506        .map_io         = at91_map_io,
 507        .handle_irq     = at91_aic_handle_irq,
 508        .init_early     = ek_init_early,
 509        .init_irq       = at91_init_irq_default,
 510        .init_machine   = ek_board_init,
 511MACHINE_END
 512