dev-dwmci.c

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/*
 * linux/arch/arm/mach-exynos4/dev-dwmci.c
 *
 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
 *      http://www.samsung.com
 *
 * Platform device for Synopsys DesignWare Mobile Storage IP
 *
 * 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/kernel.h>
#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/mmc/dw_mmc.h>

#include <plat/devs.h>

#include <mach/map.h>

static int exynos4_dwmci_get_bus_wd(u32 slot_id)
{
    return 4;
}

static int exynos4_dwmci_init(u32 slot_id, irq_handler_t handler, void *data)
{
    return 0;
}

static struct resource exynos4_dwmci_resource[] = {
    [0] = DEFINE_RES_MEM(EXYNOS4_PA_DWMCI, SZ_4K),
    [1] = DEFINE_RES_IRQ(EXYNOS4_IRQ_DWMCI),
};

static struct dw_mci_board exynos4_dwci_pdata = {
    .num_slots          = 1,
    .quirks             = DW_MCI_QUIRK_BROKEN_CARD_DETECTION,
    .bus_hz             = 80 * 1000 * 1000,
    .detect_delay_ms    = 200,
    .init               = exynos4_dwmci_init,
    .get_bus_wd         = exynos4_dwmci_get_bus_wd,
};

static u64 exynos4_dwmci_dmamask = DMA_BIT_MASK(32);

struct platform_device exynos4_device_dwmci = {
    .name       = "dw_mmc",
    .id     = -1,
    .num_resources  = ARRAY_SIZE(exynos4_dwmci_resource),
    .resource   = exynos4_dwmci_resource,
    .dev        = {
        .dma_mask       = &exynos4_dwmci_dmamask,
        .coherent_dma_mask  = DMA_BIT_MASK(32),
        .platform_data  = &exynos4_dwci_pdata,
    },
};

void __init exynos4_dwmci_set_platdata(struct dw_mci_board *pd)
{
    struct dw_mci_board *npd;

    npd = s3c_set_platdata(pd, sizeof(struct dw_mci_board),
            &exynos4_device_dwmci);

    if (!npd->init)
        npd->init = exynos4_dwmci_init;
    if (!npd->get_bus_wd)
        npd->get_bus_wd = exynos4_dwmci_get_bus_wd;
}