board-2430sdp.c

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/*
 * 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/mtd/physmap.h>
#include <linux/mmc/host.h>
#include <linux/delay.h>
#include <linux/i2c/twl.h>
#include <linux/regulator/machine.h>
#include <linux/err.h>
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/gpio.h>

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

#include "common.h"
#include <plat/gpmc.h>
#include <plat/usb.h>
#include "gpmc-smc91x.h"

#include <video/omapdss.h>
#include <video/omap-panel-generic-dpi.h>

#include "mux.h"
#include "hsmmc.h"
#include "common-board-devices.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 physmap_flash_data sdp2430_flash_data = {
    .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       = "physmap-flash",
    .id     = 0,
    .dev = {
        .platform_data  = &sdp2430_flash_data,
    },
    .num_resources  = 1,
    .resource   = &sdp2430_flash_resource,
};

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

/* LCD */
#define SDP2430_LCD_PANEL_BACKLIGHT_GPIO    91
#define SDP2430_LCD_PANEL_ENABLE_GPIO       154

static int sdp2430_panel_enable_lcd(struct omap_dss_device *dssdev)
{
    gpio_direction_output(SDP2430_LCD_PANEL_ENABLE_GPIO, 1);
    gpio_direction_output(SDP2430_LCD_PANEL_BACKLIGHT_GPIO, 1);

    return 0;
}

static void sdp2430_panel_disable_lcd(struct omap_dss_device *dssdev)
{
    gpio_direction_output(SDP2430_LCD_PANEL_ENABLE_GPIO, 0);
    gpio_direction_output(SDP2430_LCD_PANEL_BACKLIGHT_GPIO, 0);
}

static struct panel_generic_dpi_data sdp2430_panel_data = {
    .name           = "nec_nl2432dr22-11b",
    .platform_enable    = sdp2430_panel_enable_lcd,
    .platform_disable   = sdp2430_panel_disable_lcd,
};

static struct omap_dss_device sdp2430_lcd_device = {
    .name           = "lcd",
    .driver_name        = "generic_dpi_panel",
    .type           = OMAP_DISPLAY_TYPE_DPI,
    .phy.dpi.data_lines = 16,
    .data           = &sdp2430_panel_data,
};

static struct omap_dss_device *sdp2430_dss_devices[] = {
    &sdp2430_lcd_device,
};

static struct omap_dss_board_info sdp2430_dss_data = {
    .num_devices    = ARRAY_SIZE(sdp2430_dss_devices),
    .devices    = sdp2430_dss_devices,
    .default_device = &sdp2430_lcd_device,
};

static void __init sdp2430_display_init(void)
{
    int r;

    static struct gpio gpios[] __initdata = {
        { SDP2430_LCD_PANEL_ENABLE_GPIO, GPIOF_OUT_INIT_LOW,
            "LCD reset" },
        { SDP2430_LCD_PANEL_BACKLIGHT_GPIO, GPIOF_OUT_INIT_LOW,
            "LCD Backlight" },
    };

    r = gpio_request_array(gpios, ARRAY_SIZE(gpios));
    if (r) {
        pr_err("Cannot request LCD GPIOs, error %d\n", r);
        return;
    }

    omap_display_init(&sdp2430_dss_data);
}

#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)
{
    omap_mux_init_gpio(149, OMAP_PIN_INPUT);
    gpmc_smc91x_init(&board_smc91x_data);
}

#else

static inline void board_smc91x_init(void)
{
}

#endif

static struct regulator_consumer_supply sdp2430_vmmc1_supplies[] = {
    REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
};

/* VMMC1 for OMAP VDD_MMC1 (i/o) and MMC1 card */
static struct regulator_init_data sdp2430_vmmc1 = {
    .constraints = {
        .min_uV         = 1850000,
        .max_uV         = 3150000,
        .valid_modes_mask   = REGULATOR_MODE_NORMAL
                    | REGULATOR_MODE_STANDBY,
        .valid_ops_mask     = REGULATOR_CHANGE_VOLTAGE
                    | REGULATOR_CHANGE_MODE
                    | REGULATOR_CHANGE_STATUS,
    },
    .num_consumer_supplies  = ARRAY_SIZE(sdp2430_vmmc1_supplies),
    .consumer_supplies  = &sdp2430_vmmc1_supplies[0],
};

static struct twl4030_gpio_platform_data sdp2430_gpio_data = {
};

static struct twl4030_platform_data sdp2430_twldata = {
    /* platform_data for children goes here */
    .gpio       = &sdp2430_gpio_data,
    .vmmc1      = &sdp2430_vmmc1,
};

static struct i2c_board_info __initdata sdp2430_i2c1_boardinfo[] = {
    {
        I2C_BOARD_INFO("isp1301_omap", 0x2D),
        .flags = I2C_CLIENT_WAKE,
    },
};

static int __init omap2430_i2c_init(void)
{
    sdp2430_i2c1_boardinfo[0].irq = gpio_to_irq(78);
    omap_register_i2c_bus(1, 100, sdp2430_i2c1_boardinfo,
            ARRAY_SIZE(sdp2430_i2c1_boardinfo));
    omap_pmic_init(2, 100, "twl4030", 7 + OMAP_INTC_START,
            &sdp2430_twldata);
    return 0;
}

static struct omap2_hsmmc_info mmc[] __initdata = {
    {
        .mmc        = 1,
        .caps       = MMC_CAP_4_BIT_DATA,
        .gpio_cd    = -EINVAL,
        .gpio_wp    = -EINVAL,
        .ext_clock  = 1,
    },
    {}  /* Terminator */
};

#ifdef CONFIG_OMAP_MUX
static struct omap_board_mux board_mux[] __initdata = {
    { .reg_offset = OMAP_MUX_TERMINATOR },
};
#endif

static void __init omap_2430sdp_init(void)
{
    omap2430_mux_init(board_mux, OMAP_PACKAGE_ZAC);

    omap2430_i2c_init();

    platform_add_devices(sdp2430_devices, ARRAY_SIZE(sdp2430_devices));
    omap_serial_init();
    omap_sdrc_init(NULL, NULL);
    omap_hsmmc_init(mmc);

    omap_mux_init_signal("usb0hs_stp", OMAP_PULL_ENA | OMAP_PULL_UP);
    usb_musb_init(NULL);

    board_smc91x_init();

    /* Turn off secondary LCD backlight */
    gpio_request_one(SECONDARY_LCD_GPIO, GPIOF_OUT_INIT_LOW,
             "Secondary LCD backlight");

    sdp2430_display_init();
}

MACHINE_START(OMAP_2430SDP, "OMAP2430 sdp2430 board")
    /* Maintainer: Syed Khasim - Texas Instruments Inc */
    .atag_offset    = 0x100,
    .reserve    = omap_reserve,
    .map_io     = omap243x_map_io,
    .init_early = omap2430_init_early,
    .init_irq   = omap2_init_irq,
    .handle_irq = omap2_intc_handle_irq,
    .init_machine   = omap_2430sdp_init,
    .init_late  = omap2430_init_late,
    .timer      = &omap2_timer,
    .restart    = omap_prcm_restart,
MACHINE_END