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kernel/linux-rt-4.4.41/arch/arm/mach-imx/devices/platform-sdhci-esdhc-imx.c 2.18 KB
5113f6f70   김현기   kernel add
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  /*
   * Copyright (C) 2010 Pengutronix, Wolfram Sang <kernel@pengutronix.de>
   *
   * This program is free software; you can redistribute it and/or modify it under
   * the terms of the GNU General Public License version 2 as published by the
   * Free Software Foundation.
   */
  
  #include <linux/platform_data/mmc-esdhc-imx.h>
  
  #include "../hardware.h"
  #include "devices-common.h"
  
  #define imx_sdhci_esdhc_imx_data_entry_single(soc, _devid, _id, hwid) \
  	{								\
  		.devid = _devid,					\
  		.id = _id,						\
  		.iobase = soc ## _ESDHC ## hwid ## _BASE_ADDR,	\
  		.irq = soc ## _INT_ESDHC ## hwid,			\
  	}
  
  #define imx_sdhci_esdhc_imx_data_entry(soc, devid, id, hwid)	\
  	[id] = imx_sdhci_esdhc_imx_data_entry_single(soc, devid, id, hwid)
  
  #ifdef CONFIG_SOC_IMX25
  const struct imx_sdhci_esdhc_imx_data
  imx25_sdhci_esdhc_imx_data[] __initconst = {
  #define imx25_sdhci_esdhc_imx_data_entry(_id, _hwid)			\
  	imx_sdhci_esdhc_imx_data_entry(MX25, "sdhci-esdhc-imx25", _id, _hwid)
  	imx25_sdhci_esdhc_imx_data_entry(0, 1),
  	imx25_sdhci_esdhc_imx_data_entry(1, 2),
  };
  #endif /* ifdef CONFIG_SOC_IMX25 */
  
  #ifdef CONFIG_SOC_IMX35
  const struct imx_sdhci_esdhc_imx_data
  imx35_sdhci_esdhc_imx_data[] __initconst = {
  #define imx35_sdhci_esdhc_imx_data_entry(_id, _hwid)			\
  	imx_sdhci_esdhc_imx_data_entry(MX35, "sdhci-esdhc-imx35", _id, _hwid)
  	imx35_sdhci_esdhc_imx_data_entry(0, 1),
  	imx35_sdhci_esdhc_imx_data_entry(1, 2),
  	imx35_sdhci_esdhc_imx_data_entry(2, 3),
  };
  #endif /* ifdef CONFIG_SOC_IMX35 */
  
  static const struct esdhc_platform_data default_esdhc_pdata __initconst = {
  	.wp_type = ESDHC_WP_NONE,
  	.cd_type = ESDHC_CD_NONE,
  };
  
  struct platform_device *__init imx_add_sdhci_esdhc_imx(
  		const struct imx_sdhci_esdhc_imx_data *data,
  		const struct esdhc_platform_data *pdata)
  {
  	struct resource res[] = {
  		{
  			.start = data->iobase,
  			.end = data->iobase + SZ_16K - 1,
  			.flags = IORESOURCE_MEM,
  		}, {
  			.start = data->irq,
  			.end = data->irq,
  			.flags = IORESOURCE_IRQ,
  		},
  	};
  
  	/*
  	 * If machine does not provide pdata, use the default one
  	 * which means no WP/CD support
  	 */
  	if (!pdata)
  		pdata = &default_esdhc_pdata;
  
  	return imx_add_platform_device(data->devid, data->id, res,
  			ARRAY_SIZE(res), pdata, sizeof(*pdata));
  }