LXR linux/arch/arm/mach-imx/devices/platform-mxc-mmc.c

   1/*
   2 * Copyright (C) 2010 Pengutronix
   3 * Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
   4 *
   5 * This program is free software; you can redistribute it and/or modify it under
   6 * the terms of the GNU General Public License version 2 as published by the
   7 * Free Software Foundation.
   8 */
   9#include <linux/dma-mapping.h>
  10
  11#include "../hardware.h"
  12#include "devices-common.h"
  13
  14#define imx_mxc_mmc_data_entry_single(soc, _devid, _id, _hwid, _size)   \
  15        {                                                               \
  16                .devid = _devid,                                        \
  17                .id = _id,                                              \
  18                .iobase = soc ## _SDHC ## _hwid ## _BASE_ADDR,          \
  19                .iosize = _size,                                        \
  20                .irq = soc ## _INT_SDHC ## _hwid,                       \
  21                .dmareq = soc ## _DMA_REQ_SDHC ## _hwid,                \
  22        }
  23#define imx_mxc_mmc_data_entry(soc, _devid, _id, _hwid, _size)          \
  24        [_id] = imx_mxc_mmc_data_entry_single(soc, _devid, _id, _hwid, _size)
  25
  26#ifdef CONFIG_SOC_IMX21
  27const struct imx_mxc_mmc_data imx21_mxc_mmc_data[] __initconst = {
  28#define imx21_mxc_mmc_data_entry(_id, _hwid)                            \
  29        imx_mxc_mmc_data_entry(MX21, "imx21-mmc", _id, _hwid, SZ_4K)
  30        imx21_mxc_mmc_data_entry(0, 1),
  31        imx21_mxc_mmc_data_entry(1, 2),
  32};
  33#endif /* ifdef CONFIG_SOC_IMX21 */
  34
  35#ifdef CONFIG_SOC_IMX27
  36const struct imx_mxc_mmc_data imx27_mxc_mmc_data[] __initconst = {
  37#define imx27_mxc_mmc_data_entry(_id, _hwid)                            \
  38        imx_mxc_mmc_data_entry(MX27, "imx21-mmc", _id, _hwid, SZ_4K)
  39        imx27_mxc_mmc_data_entry(0, 1),
  40        imx27_mxc_mmc_data_entry(1, 2),
  41};
  42#endif /* ifdef CONFIG_SOC_IMX27 */
  43
  44#ifdef CONFIG_SOC_IMX31
  45const struct imx_mxc_mmc_data imx31_mxc_mmc_data[] __initconst = {
  46#define imx31_mxc_mmc_data_entry(_id, _hwid)                            \
  47        imx_mxc_mmc_data_entry(MX31, "imx31-mmc", _id, _hwid, SZ_16K)
  48        imx31_mxc_mmc_data_entry(0, 1),
  49        imx31_mxc_mmc_data_entry(1, 2),
  50};
  51#endif /* ifdef CONFIG_SOC_IMX31 */
  52
  53struct platform_device *__init imx_add_mxc_mmc(
  54                const struct imx_mxc_mmc_data *data,
  55                const struct imxmmc_platform_data *pdata)
  56{
  57        struct resource res[] = {
  58                {
  59                        .start = data->iobase,
  60                        .end = data->iobase + data->iosize - 1,
  61                        .flags = IORESOURCE_MEM,
  62                }, {
  63                        .start = data->irq,
  64                        .end = data->irq,
  65                        .flags = IORESOURCE_IRQ,
  66                }, {
  67                        .start = data->dmareq,
  68                        .end = data->dmareq,
  69                        .flags = IORESOURCE_DMA,
  70                },
  71        };
  72        return imx_add_platform_device_dmamask(data->devid, data->id,
  73                        res, ARRAY_SIZE(res),
  74                        pdata, sizeof(*pdata), DMA_BIT_MASK(32));
  75}
  76