board-rx51.c

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/*
 * linux/arch/arm/mach-omap2/board-rx51.c
 *
 * Copyright (C) 2007, 2008 Nokia
 *
 * 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/delay.h>
#include <linux/err.h>
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <linux/leds.h>
#include <linux/platform_data/spi-omap2-mcspi.h>

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

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

#include "mux.h"
#include "pm.h"
#include "sdram-nokia.h"

#define RX51_GPIO_SLEEP_IND 162

extern void rx51_video_mem_init(void);

static struct gpio_led gpio_leds[] = {
    {
        .name   = "sleep_ind",
        .gpio   = RX51_GPIO_SLEEP_IND,
    },
};

static struct gpio_led_platform_data gpio_led_info = {
    .leds       = gpio_leds,
    .num_leds   = ARRAY_SIZE(gpio_leds),
};

static struct platform_device leds_gpio = {
    .name   = "leds-gpio",
    .id = -1,
    .dev    = {
        .platform_data  = &gpio_led_info,
    },
};

/*
 * cpuidle C-states definition for rx51.
 *
 * The 'exit_latency' field is the sum of sleep
 * and wake-up latencies.

    ---------------------------------------------
   | state |  exit_latency  |  target_residency  |
    ---------------------------------------------
   |  C1   |    110 + 162   |            5       |
   |  C2   |    106 + 180   |          309       |
   |  C3   |    107 + 410   |        46057       |
   |  C4   |    121 + 3374  |        46057       |
   |  C5   |    855 + 1146  |        46057       |
   |  C6   |   7580 + 4134  |       484329       |
   |  C7   |   7505 + 15274 |       484329       |
    ---------------------------------------------

*/

extern void __init rx51_peripherals_init(void);

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

static struct omap_musb_board_data musb_board_data = {
    .interface_type     = MUSB_INTERFACE_ULPI,
    .mode           = MUSB_PERIPHERAL,
    .power          = 0,
};

static void __init rx51_init(void)
{
    struct omap_sdrc_params *sdrc_params;

    omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
    omap_serial_init();

    sdrc_params = nokia_get_sdram_timings();
    omap_sdrc_init(sdrc_params, sdrc_params);

    usb_musb_init(&musb_board_data);
    rx51_peripherals_init();

    /* Ensure SDRC pins are mux'd for self-refresh */
    omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
    omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);

    platform_device_register(&leds_gpio);
}

static void __init rx51_reserve(void)
{
    rx51_video_mem_init();
    omap_reserve();
}

MACHINE_START(NOKIA_RX51, "Nokia RX-51 board")
    /* Maintainer: Lauri Leukkunen <[email protected]> */
    .atag_offset    = 0x100,
    .reserve    = rx51_reserve,
    .map_io     = omap3_map_io,
    .init_early = omap3430_init_early,
    .init_irq   = omap3_init_irq,
    .handle_irq = omap3_intc_handle_irq,
    .init_machine   = rx51_init,
    .init_late  = omap3430_init_late,
    .timer      = &omap3_timer,
    .restart    = omap_prcm_restart,
MACHINE_END