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board-sam9rlek.c

/*
 *  Copyright (C) 2005 SAN People
 *  Copyright (C) 2007 Atmel Corporation
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file COPYING in the main directory of this archive for
 * more details.
 */

#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/clk.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/hardware.h>
#include <mach/board.h>
#include <mach/gpio.h>
#include <mach/at91sam9_smc.h>

#include "generic.h"


static void __init ek_map_io(void)
{
      /* Initialize processor: 12.000 MHz crystal */
      at91sam9rl_initialize(12000000);

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

      /* USART0 on ttyS1. (Rx, Tx, CTS, RTS) */
      at91_register_uart(AT91SAM9RL_ID_US0, 1, 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)
{
      at91sam9rl_init_interrupts(NULL);
}


/*
 * USB HS Device port
 */
static struct usba_platform_data __initdata ek_usba_udc_data = {
      .vbus_pin   = AT91_PIN_PA8,
};


/*
 * MCI (SD/MMC)
 */
static struct at91_mmc_data __initdata ek_mmc_data = {
      .wire4            = 1,
      .det_pin    = AT91_PIN_PA15,
//    .wp_pin           = ... not connected
//    .vcc_pin    = ... not connected
};


/*
 * NAND flash
 */
static struct mtd_partition __initdata ek_nand_partition[] = {
      {
            .name = "Partition 1",
            .offset     = 0,
            .size = SZ_256K,
      },
      {
            .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;
}

static struct atmel_nand_data __initdata ek_nand_data = {
      .ale        = 21,
      .cle        = 22,
//    .det_pin    = ... not connected
      .rdy_pin    = AT91_PIN_PD17,
      .enable_pin = AT91_PIN_PB6,
      .partition_info   = nand_partitions,
      .bus_width_16     = 0,
};


/*
 * 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,
      },
};


/*
 * LCD Controller
 */
#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
static struct fb_videomode at91_tft_vga_modes[] = {
      {
            .name       = "TX09D50VM1CCA @ 60",
            .refresh    = 60,
            .xres       = 240,            .yres       = 320,
            .pixclock   = KHZ2PICOS(4965),

            .left_margin      = 1,        .right_margin     = 33,
            .upper_margin     = 1,        .lower_margin     = 0,
            .hsync_len  = 5,        .vsync_len  = 1,

            .sync       = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
            .vmode            = FB_VMODE_NONINTERLACED,
      },
};

static struct fb_monspecs at91fb_default_monspecs = {
      .manufacturer     = "HIT",
      .monitor    = "TX09D50VM1CCA",

      .modedb           = at91_tft_vga_modes,
      .modedb_len = ARRAY_SIZE(at91_tft_vga_modes),
      .hfmin            = 15000,
      .hfmax            = 64000,
      .vfmin            = 50,
      .vfmax            = 150,
};

#define AT91SAM9RL_DEFAULT_LCDCON2  (ATMEL_LCDC_MEMOR_LITTLE \
                              | ATMEL_LCDC_DISTYPE_TFT \
                              | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)

static void at91_lcdc_power_control(int on)
{
      if (on)
            at91_set_gpio_value(AT91_PIN_PA30, 0);    /* power up */
      else
            at91_set_gpio_value(AT91_PIN_PA30, 1);    /* power down */
}

/* Driver datas */
static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
      .default_bpp                  = 16,
      .default_dmacon               = ATMEL_LCDC_DMAEN,
      .default_lcdcon2        = AT91SAM9RL_DEFAULT_LCDCON2,
      .default_monspecs       = &at91fb_default_monspecs,
      .atmel_lcdfb_power_control    = at91_lcdc_power_control,
      .guard_time             = 1,
};

#else
static struct atmel_lcdfb_info __initdata ek_lcdc_data;
#endif


static void __init ek_board_init(void)
{
      /* Serial */
      at91_add_device_serial();
      /* USB HS */
      at91_add_device_usba(&ek_usba_udc_data);
      /* I2C */
      at91_add_device_i2c(NULL, 0);
      /* NAND */
      at91_add_device_nand(&ek_nand_data);
      /* SPI */
      at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
      /* MMC */
      at91_add_device_mmc(0, &ek_mmc_data);
      /* LCD Controller */
      at91_add_device_lcdc(&ek_lcdc_data);
      /* Touch Screen Controller */
      at91_add_device_tsadcc();
}

MACHINE_START(AT91SAM9RLEK, "Atmel AT91SAM9RL-EK")
      /* Maintainer: Atmel */
      .phys_io    = AT91_BASE_SYS,
      .io_pg_offst      = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
      .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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