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board-sam9m10g45ek.c

/*
 *  Board-specific setup code for the AT91SAM9M10G45 Evaluation Kit family
 *
 *  Covers: * AT91SAM9G45-EKES  board
 *          * AT91SAM9M10G45-EK board
 *
 *  Copyright (C) 2009 Atmel Corporation.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 */

#include <linux/types.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/spi/spi.h>
#include <linux/fb.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/leds.h>
#include <linux/clk.h>
#include <linux/atmel-mci.h>

#include <mach/hardware.h>
#include <video/atmel_lcdc.h>

#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/irq.h>

#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>

#include <mach/board.h>
#include <mach/gpio.h>
#include <mach/at91sam9_smc.h>
#include <mach/at91_shdwc.h>

#include "sam9_smc.h"
#include "generic.h"


static void __init ek_map_io(void)
{
      /* Initialize processor: 12.000 MHz crystal */
      at91sam9g45_initialize(12000000);

      /* DGBU on ttyS0. (Rx & Tx only) */
      at91_register_uart(0, 0, 0);

      /* USART0 not connected on the -EK board */
      /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
      at91_register_uart(AT91SAM9G45_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);

      /* set serial console to ttyS0 (ie, DBGU) */
      at91_set_serial_console(0);
}

static void __init ek_init_irq(void)
{
      at91sam9g45_init_interrupts(NULL);
}


/*
 * USB HS Host port (common to OHCI & EHCI)
 */
static struct at91_usbh_data __initdata ek_usbh_hs_data = {
      .ports            = 2,
      .vbus_pin   = {AT91_PIN_PD1, AT91_PIN_PD3},
};


/*
 * USB HS Device port
 */
static struct usba_platform_data __initdata ek_usba_udc_data = {
      .vbus_pin   = AT91_PIN_PB19,
};


/*
 * SPI devices.
 */
static struct spi_board_info ek_spi_devices[] = {
      {     /* DataFlash chip */
            .modalias   = "mtd_dataflash",
            .chip_select      = 0,
            .max_speed_hz     = 15 * 1000 * 1000,
            .bus_num    = 0,
      },
};


/*
 * MCI (SD/MMC)
 */
static struct mci_platform_data __initdata mci0_data = {
      .slot[0] = {
            .bus_width  = 4,
            .detect_pin = AT91_PIN_PD10,
      },
};

static struct mci_platform_data __initdata mci1_data = {
      .slot[0] = {
            .bus_width  = 4,
            .detect_pin = AT91_PIN_PD11,
            .wp_pin           = AT91_PIN_PD29,
      },
};


/*
 * MACB Ethernet device
 */
static struct at91_eth_data __initdata ek_macb_data = {
      .phy_irq_pin      = AT91_PIN_PD5,
      .is_rmii    = 1,
};


/*
 * NAND flash
 */
static struct mtd_partition __initdata ek_nand_partition[] = {
      {
            .name = "Partition 1",
            .offset     = 0,
            .size = SZ_64M,
      },
      {
            .name = "Partition 2",
            .offset     = MTDPART_OFS_NXTBLK,
            .size = MTDPART_SIZ_FULL,
      },
};

static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
{
      *num_partitions = ARRAY_SIZE(ek_nand_partition);
      return ek_nand_partition;
}

/* det_pin is not connected */
static struct atmel_nand_data __initdata ek_nand_data = {
      .ale        = 21,
      .cle        = 22,
      .rdy_pin    = AT91_PIN_PC8,
      .enable_pin = AT91_PIN_PC14,
      .partition_info   = nand_partitions,
#if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16)
      .bus_width_16     = 1,
#else
      .bus_width_16     = 0,
#endif
};

static struct sam9_smc_config __initdata ek_nand_smc_config = {
      .ncs_read_setup         = 0,
      .nrd_setup        = 2,
      .ncs_write_setup  = 0,
      .nwe_setup        = 2,

      .ncs_read_pulse         = 4,
      .nrd_pulse        = 4,
      .ncs_write_pulse  = 4,
      .nwe_pulse        = 4,

      .read_cycle       = 7,
      .write_cycle            = 7,

      .mode             = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
      .tdf_cycles       = 3,
};

static void __init ek_add_device_nand(void)
{
      /* setup bus-width (8 or 16) */
      if (ek_nand_data.bus_width_16)
            ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
      else
            ek_nand_smc_config.mode |= AT91_SMC_DBW_8;

      /* configure chip-select 3 (NAND) */
      sam9_smc_configure(3, &ek_nand_smc_config);

      at91_add_device_nand(&ek_nand_data);
}


/*
 * LCD Controller
 */
#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
static struct fb_videomode at91_tft_vga_modes[] = {
      {
            .name           = "LG",
            .refresh    = 60,
            .xres       = 480,            .yres       = 272,
            .pixclock   = KHZ2PICOS(9000),

            .left_margin      = 1,        .right_margin     = 1,
            .upper_margin     = 40,       .lower_margin     = 1,
            .hsync_len  = 45,       .vsync_len  = 1,

            .sync       = 0,
            .vmode            = FB_VMODE_NONINTERLACED,
      },
};

static struct fb_monspecs at91fb_default_monspecs = {
      .manufacturer     = "LG",
      .monitor        = "LB043WQ1",

      .modedb           = at91_tft_vga_modes,
      .modedb_len = ARRAY_SIZE(at91_tft_vga_modes),
      .hfmin            = 15000,
      .hfmax            = 17640,
      .vfmin            = 57,
      .vfmax            = 67,
};

#define AT91SAM9G45_DEFAULT_LCDCON2       (ATMEL_LCDC_MEMOR_LITTLE \
                              | ATMEL_LCDC_DISTYPE_TFT \
                              | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)

/* Driver datas */
static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
      .lcdcon_is_backlight          = true,
      .default_bpp                  = 32,
      .default_dmacon               = ATMEL_LCDC_DMAEN,
      .default_lcdcon2        = AT91SAM9G45_DEFAULT_LCDCON2,
      .default_monspecs       = &at91fb_default_monspecs,
      .guard_time             = 9,
      .lcd_wiring_mode        = ATMEL_LCDC_WIRING_RGB,
};

#else
static struct atmel_lcdfb_info __initdata ek_lcdc_data;
#endif


/*
 * Touchscreen
 */
static struct at91_tsadcc_data ek_tsadcc_data = {
      .adc_clock        = 300000,
      .pendet_debounce  = 0x0d,
      .ts_sample_hold_time    = 0x0a,
};


/*
 * GPIO Buttons
 */
#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
static struct gpio_keys_button ek_buttons[] = {
      {     /* BP1, "leftclic" */
            .code       = BTN_LEFT,
            .gpio       = AT91_PIN_PB6,
            .active_low = 1,
            .desc       = "left_click",
            .wakeup           = 1,
      },
      {     /* BP2, "rightclic" */
            .code       = BTN_RIGHT,
            .gpio       = AT91_PIN_PB7,
            .active_low = 1,
            .desc       = "right_click",
            .wakeup           = 1,
      },
            /* BP3, "joystick" */
      {
            .code       = KEY_LEFT,
            .gpio       = AT91_PIN_PB14,
            .active_low = 1,
            .desc       = "Joystick Left",
      },
      {
            .code       = KEY_RIGHT,
            .gpio       = AT91_PIN_PB15,
            .active_low = 1,
            .desc       = "Joystick Right",
      },
      {
            .code       = KEY_UP,
            .gpio       = AT91_PIN_PB16,
            .active_low = 1,
            .desc       = "Joystick Up",
      },
      {
            .code       = KEY_DOWN,
            .gpio       = AT91_PIN_PB17,
            .active_low = 1,
            .desc       = "Joystick Down",
      },
      {
            .code       = KEY_ENTER,
            .gpio       = AT91_PIN_PB18,
            .active_low = 1,
            .desc       = "Joystick Press",
      },
};

static struct gpio_keys_platform_data ek_button_data = {
      .buttons    = ek_buttons,
      .nbuttons   = ARRAY_SIZE(ek_buttons),
};

static struct platform_device ek_button_device = {
      .name       = "gpio-keys",
      .id         = -1,
      .num_resources    = 0,
      .dev        = {
            .platform_data    = &ek_button_data,
      }
};

static void __init ek_add_device_buttons(void)
{
      int i;

      for (i = 0; i < ARRAY_SIZE(ek_buttons); i++) {
            at91_set_GPIO_periph(ek_buttons[i].gpio, 1);
            at91_set_deglitch(ek_buttons[i].gpio, 1);
      }

      platform_device_register(&ek_button_device);
}
#else
static void __init ek_add_device_buttons(void) {}
#endif


/*
 * AC97
 * reset_pin is not connected: NRST
 */
static struct ac97c_platform_data ek_ac97_data = {
};


/*
 * LEDs ... these could all be PWM-driven, for variable brightness
 */
static struct gpio_led ek_leds[] = {
      {     /* "top" led, red, powerled */
            .name             = "d8",
            .gpio             = AT91_PIN_PD30,
            .default_trigger  = "heartbeat",
      },
      {     /* "left" led, green, userled2, pwm3 */
            .name             = "d6",
            .gpio             = AT91_PIN_PD0,
            .active_low       = 1,
            .default_trigger  = "nand-disk",
      },
#if !(defined(CONFIG_LEDS_ATMEL_PWM) || defined(CONFIG_LEDS_ATMEL_PWM_MODULE))
      {     /* "right" led, green, userled1, pwm1 */
            .name             = "d7",
            .gpio             = AT91_PIN_PD31,
            .active_low       = 1,
            .default_trigger  = "mmc0",
      },
#endif
};


/*
 * PWM Leds
 */
static struct gpio_led ek_pwm_led[] = {
#if defined(CONFIG_LEDS_ATMEL_PWM) || defined(CONFIG_LEDS_ATMEL_PWM_MODULE)
      {     /* "right" led, green, userled1, pwm1 */
            .name             = "d7",
            .gpio             = 1,  /* is PWM channel number */
            .active_low       = 1,
            .default_trigger  = "none",
      },
#endif
};



static void __init ek_board_init(void)
{
      /* Serial */
      at91_add_device_serial();
      /* USB HS Host */
      at91_add_device_usbh_ohci(&ek_usbh_hs_data);
      at91_add_device_usbh_ehci(&ek_usbh_hs_data);
      /* USB HS Device */
      at91_add_device_usba(&ek_usba_udc_data);
      /* SPI */
      at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
      /* MMC */
      at91_add_device_mci(0, &mci0_data);
      at91_add_device_mci(1, &mci1_data);
      /* Ethernet */
      at91_add_device_eth(&ek_macb_data);
      /* NAND */
      ek_add_device_nand();
      /* I2C */
      at91_add_device_i2c(0, NULL, 0);
      /* LCD Controller */
      at91_add_device_lcdc(&ek_lcdc_data);
      /* Touch Screen */
      at91_add_device_tsadcc(&ek_tsadcc_data);
      /* Push Buttons */
      ek_add_device_buttons();
      /* AC97 */
      at91_add_device_ac97(&ek_ac97_data);
      /* LEDs */
      at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
      at91_pwm_leds(ek_pwm_led, ARRAY_SIZE(ek_pwm_led));
}

MACHINE_START(AT91SAM9M10G45EK, "Atmel AT91SAM9M10G45-EK")
      /* Maintainer: Atmel */
      .boot_params      = AT91_SDRAM_BASE + 0x100,
      .timer            = &at91sam926x_timer,
      .map_io           = ek_map_io,
      .init_irq   = ek_init_irq,
      .init_machine     = ek_board_init,
MACHINE_END

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