arch/arm/plat-mxc/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 #include <mach/hardware.h>
  11 #include <mach/devices-common.h>
  12
  13 #define imx_mxc_mmc_data_entry_single(soc, _id, _hwid, _size)           \
  14         {                                                               \
  15                 .id = _id,                                              \
  16                 .iobase = soc ## _SDHC ## _hwid ## _BASE_ADDR,          \
  17                 .iosize = _size,                                        \
  18                 .irq = soc ## _INT_SDHC ## _hwid,                       \
  19                 .dmareq = soc ## _DMA_REQ_SDHC ## _hwid,                \
  20         }
  21 #define imx_mxc_mmc_data_entry(soc, _id, _hwid, _size)                  \
  22         [_id] = imx_mxc_mmc_data_entry_single(soc, _id, _hwid, _size)
  23
  24 #ifdef CONFIG_SOC_IMX21
  25 const struct imx_mxc_mmc_data imx21_mxc_mmc_data[] __initconst = {
  26 #define imx21_mxc_mmc_data_entry(_id, _hwid)                            \
  27         imx_mxc_mmc_data_entry(MX21, _id, _hwid, SZ_4K)
  28         imx21_mxc_mmc_data_entry(0, 1),
  29         imx21_mxc_mmc_data_entry(1, 2),
  30 };
  31 #endif /* ifdef CONFIG_SOC_IMX21 */
  32
  33 #ifdef CONFIG_SOC_IMX27
  34 const struct imx_mxc_mmc_data imx27_mxc_mmc_data[] __initconst = {
  35 #define imx27_mxc_mmc_data_entry(_id, _hwid)                            \
  36         imx_mxc_mmc_data_entry(MX27, _id, _hwid, SZ_4K)
  37         imx27_mxc_mmc_data_entry(0, 1),
  38         imx27_mxc_mmc_data_entry(1, 2),
  39 };
  40 #endif /* ifdef CONFIG_SOC_IMX27 */
  41
  42 #ifdef CONFIG_SOC_IMX31
  43 const struct imx_mxc_mmc_data imx31_mxc_mmc_data[] __initconst = {
  44 #define imx31_mxc_mmc_data_entry(_id, _hwid)                            \
  45         imx_mxc_mmc_data_entry(MX31, _id, _hwid, SZ_16K)
  46         imx31_mxc_mmc_data_entry(0, 1),
  47         imx31_mxc_mmc_data_entry(1, 2),
  48 };
  49 #endif /* ifdef CONFIG_SOC_IMX31 */
  50
  51 struct platform_device *__init imx_add_mxc_mmc(
  52                 const struct imx_mxc_mmc_data *data,
  53                 const struct imxmmc_platform_data *pdata)
  54 {
  55         struct resource res[] = {
  56                 {
  57                         .start = data->iobase,
  58                         .end = data->iobase + SZ_4K - 1,
  59                         .flags = IORESOURCE_MEM,
  60                 }, {
  61                         .start = data->irq,
  62                         .end = data->irq,
  63                         .flags = IORESOURCE_IRQ,
  64                 }, {
  65                         .start = data->dmareq,
  66                         .end = data->dmareq,
  67                         .flags = IORESOURCE_DMA,
  68                 },
  69         };
  70         return imx_add_platform_device_dmamask("mxc-mmc", data->id,
  71                         res, ARRAY_SIZE(res),
  72                         pdata, sizeof(*pdata), DMA_BIT_MASK(32));
  73 }