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board-2430sdp.c

/*
 * linux/arch/arm/mach-omap2/board-2430sdp.c
 *
 * Copyright (C) 2006 Texas Instruments
 *
 * Modified from mach-omap2/board-generic.c
 *
 * Initial Code : Based on a patch from Komal Shah and Richard Woodruff
 * Updated the Code for 2430 SDP : Syed Mohammed Khasim
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/delay.h>
#include <linux/i2c/twl4030.h>
#include <linux/err.h>
#include <linux/clk.h>
#include <linux/io.h>

#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/flash.h>

#include <mach/gpio.h>
#include <mach/mux.h>
#include <mach/board.h>
#include <mach/common.h>
#include <mach/gpmc.h>
#include <mach/usb.h>
#include <mach/gpmc-smc91x.h>

#include "mmc-twl4030.h"

#define SDP2430_CS0_BASE      0x04000000
#define SECONDARY_LCD_GPIO          147

static struct mtd_partition sdp2430_partitions[] = {
      /* bootloader (U-Boot, etc) in first sector */
      {
            .name       = "bootloader",
            .offset           = 0,
            .size       = SZ_256K,
            .mask_flags = MTD_WRITEABLE,  /* force read-only */
       },
      /* bootloader params in the next sector */
      {
            .name       = "params",
            .offset           = MTDPART_OFS_APPEND,
            .size       = SZ_128K,
            .mask_flags = 0,
       },
      /* kernel */
      {
            .name       = "kernel",
            .offset           = MTDPART_OFS_APPEND,
            .size       = SZ_2M,
            .mask_flags = 0
      },
      /* file system */
      {
            .name       = "filesystem",
            .offset           = MTDPART_OFS_APPEND,
            .size       = MTDPART_SIZ_FULL,
            .mask_flags = 0
      }
};

static struct flash_platform_data sdp2430_flash_data = {
      .map_name   = "cfi_probe",
      .width            = 2,
      .parts            = sdp2430_partitions,
      .nr_parts   = ARRAY_SIZE(sdp2430_partitions),
};

static struct resource sdp2430_flash_resource = {
      .start            = SDP2430_CS0_BASE,
      .end        = SDP2430_CS0_BASE + SZ_64M - 1,
      .flags            = IORESOURCE_MEM,
};

static struct platform_device sdp2430_flash_device = {
      .name       = "omapflash",
      .id         = 0,
      .dev = {
            .platform_data    = &sdp2430_flash_data,
      },
      .num_resources    = 1,
      .resource   = &sdp2430_flash_resource,
};

static struct platform_device sdp2430_lcd_device = {
      .name       = "sdp2430_lcd",
      .id         = -1,
};

static struct platform_device *sdp2430_devices[] __initdata = {
      &sdp2430_flash_device,
      &sdp2430_lcd_device,
};

static struct omap_lcd_config sdp2430_lcd_config __initdata = {
      .ctrl_name  = "internal",
};

#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91x_MODULE)

static struct omap_smc91x_platform_data board_smc91x_data = {
      .cs         = 5,
      .gpio_irq   = 149,
      .flags            = GPMC_MUX_ADD_DATA | GPMC_TIMINGS_SMC91C96 |
                        IORESOURCE_IRQ_LOWLEVEL,

};

static void __init board_smc91x_init(void)
{
      if (omap_rev() > OMAP3430_REV_ES1_0)
            board_smc91x_data.gpio_irq = 6;
      else
            board_smc91x_data.gpio_irq = 29;

      gpmc_smc91x_init(&board_smc91x_data);
}

#else

static inline void board_smc91x_init(void)
{
}

#endif

static struct omap_board_config_kernel sdp2430_config[] = {
      {OMAP_TAG_LCD, &sdp2430_lcd_config},
};

static void __init omap_2430sdp_init_irq(void)
{
      omap_board_config = sdp2430_config;
      omap_board_config_size = ARRAY_SIZE(sdp2430_config);
      omap2_init_common_hw(NULL, NULL);
      omap_init_irq();
      omap_gpio_init();
}

static struct twl4030_gpio_platform_data sdp2430_gpio_data = {
      .gpio_base  = OMAP_MAX_GPIO_LINES,
      .irq_base   = TWL4030_GPIO_IRQ_BASE,
      .irq_end    = TWL4030_GPIO_IRQ_END,
};

static struct twl4030_platform_data sdp2430_twldata = {
      .irq_base   = TWL4030_IRQ_BASE,
      .irq_end    = TWL4030_IRQ_END,

      /* platform_data for children goes here */
      .gpio       = &sdp2430_gpio_data,
};

static struct i2c_board_info __initdata sdp2430_i2c_boardinfo[] = {
      {
            I2C_BOARD_INFO("twl4030", 0x48),
            .flags = I2C_CLIENT_WAKE,
            .irq = INT_24XX_SYS_NIRQ,
            .platform_data = &sdp2430_twldata,
      },
};

static int __init omap2430_i2c_init(void)
{
      omap_register_i2c_bus(1, 400, NULL, 0);
      omap_register_i2c_bus(2, 2600, sdp2430_i2c_boardinfo,
                  ARRAY_SIZE(sdp2430_i2c_boardinfo));
      return 0;
}

static struct twl4030_hsmmc_info mmc[] __initdata = {
      {
            .mmc        = 1,
            .wires            = 4,
            .gpio_cd    = -EINVAL,
            .gpio_wp    = -EINVAL,
            .ext_clock  = 1,
      },
      {}    /* Terminator */
};

static void __init omap_2430sdp_init(void)
{
      int ret;

      omap2430_i2c_init();

      platform_add_devices(sdp2430_devices, ARRAY_SIZE(sdp2430_devices));
      omap_serial_init();
      twl4030_mmc_init(mmc);
      usb_musb_init();
      board_smc91x_init();

      /* Turn off secondary LCD backlight */
      ret = gpio_request(SECONDARY_LCD_GPIO, "Secondary LCD backlight");
      if (ret == 0)
            gpio_direction_output(SECONDARY_LCD_GPIO, 0);
}

static void __init omap_2430sdp_map_io(void)
{
      omap2_set_globals_243x();
      omap2_map_common_io();
}

MACHINE_START(OMAP_2430SDP, "OMAP2430 sdp2430 board")
      /* Maintainer: Syed Khasim - Texas Instruments Inc */
      .phys_io    = 0x48000000,
      .io_pg_offst      = ((0xd8000000) >> 18) & 0xfffc,
      .boot_params      = 0x80000100,
      .map_io           = omap_2430sdp_map_io,
      .init_irq   = omap_2430sdp_init_irq,
      .init_machine     = omap_2430sdp_init,
      .timer            = &omap_timer,
MACHINE_END

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