kernel/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
  27 const 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
  36 const 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
  45 const 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
  53 struct 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 }