arch/arm/mach-imx/devices/platform-sdhci-esdhc-imx.c

   1 /*
   2  * Copyright (C) 2010 Pengutronix, Wolfram Sang <kernel@pengutronix.de>
   3  *
   4  * This program is free software; you can redistribute it and/or modify it under
   5  * the terms of the GNU General Public License version 2 as published by the
   6  * Free Software Foundation.
   7  */
   8
   9 #include <linux/platform_data/mmc-esdhc-imx.h>
  10
  11 #include "../hardware.h"
  12 #include "devices-common.h"
  13
  14 #define imx_sdhci_esdhc_imx_data_entry_single(soc, _devid, _id, hwid) \
  15         {                                                               \
  16                 .devid = _devid,                                        \
  17                 .id = _id,                                              \
  18                 .iobase = soc ## _ESDHC ## hwid ## _BASE_ADDR,  \
  19                 .irq = soc ## _INT_ESDHC ## hwid,                       \
  20         }
  21
  22 #define imx_sdhci_esdhc_imx_data_entry(soc, devid, id, hwid)    \
  23         [id] = imx_sdhci_esdhc_imx_data_entry_single(soc, devid, id, hwid)
  24
  25 #ifdef CONFIG_SOC_IMX35
  26 const struct imx_sdhci_esdhc_imx_data
  27 imx35_sdhci_esdhc_imx_data[] __initconst = {
  28 #define imx35_sdhci_esdhc_imx_data_entry(_id, _hwid)                    \
  29         imx_sdhci_esdhc_imx_data_entry(MX35, "sdhci-esdhc-imx35", _id, _hwid)
  30         imx35_sdhci_esdhc_imx_data_entry(0, 1),
  31         imx35_sdhci_esdhc_imx_data_entry(1, 2),
  32         imx35_sdhci_esdhc_imx_data_entry(2, 3),
  33 };
  34 #endif /* ifdef CONFIG_SOC_IMX35 */
  35
  36 static const struct esdhc_platform_data default_esdhc_pdata __initconst = {
  37         .wp_type = ESDHC_WP_NONE,
  38         .cd_type = ESDHC_CD_NONE,
  39 };
  40
  41 struct platform_device *__init imx_add_sdhci_esdhc_imx(
  42                 const struct imx_sdhci_esdhc_imx_data *data,
  43                 const struct esdhc_platform_data *pdata)
  44 {
  45         struct resource res[] = {
  46                 {
  47                         .start = data->iobase,
  48                         .end = data->iobase + SZ_16K - 1,
  49                         .flags = IORESOURCE_MEM,
  50                 }, {
  51                         .start = data->irq,
  52                         .end = data->irq,
  53                         .flags = IORESOURCE_IRQ,
  54                 },
  55         };
  56
  57         /*
  58          * If machine does not provide pdata, use the default one
  59          * which means no WP/CD support
  60          */
  61         if (!pdata)
  62                 pdata = &default_esdhc_pdata;
  63
  64         return imx_add_platform_device_dmamask(data->devid, data->id, res,
  65                         ARRAY_SIZE(res), pdata, sizeof(*pdata),
  66                         DMA_BIT_MASK(32));
  67 }