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kernel/linux-rt-4.4.41/arch/arm/mach-imx/devices/platform-mxc-mmc.c 2.25 KB
5113f6f70   김현기   kernel add
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  /*
   * Copyright (C) 2010 Pengutronix
   * Uwe Kleine-Koenig <u.kleine-koenig@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/dma-mapping.h>
  
  #include "../hardware.h"
  #include "devices-common.h"
  
  #define imx_mxc_mmc_data_entry_single(soc, _devid, _id, _hwid, _size)	\
  	{								\
  		.devid = _devid,					\
  		.id = _id,						\
  		.iobase = soc ## _SDHC ## _hwid ## _BASE_ADDR,		\
  		.iosize = _size,					\
  		.irq = soc ## _INT_SDHC ## _hwid,			\
  		.dmareq = soc ## _DMA_REQ_SDHC ## _hwid,		\
  	}
  #define imx_mxc_mmc_data_entry(soc, _devid, _id, _hwid, _size)		\
  	[_id] = imx_mxc_mmc_data_entry_single(soc, _devid, _id, _hwid, _size)
  
  #ifdef CONFIG_SOC_IMX21
  const struct imx_mxc_mmc_data imx21_mxc_mmc_data[] __initconst = {
  #define imx21_mxc_mmc_data_entry(_id, _hwid)				\
  	imx_mxc_mmc_data_entry(MX21, "imx21-mmc", _id, _hwid, SZ_4K)
  	imx21_mxc_mmc_data_entry(0, 1),
  	imx21_mxc_mmc_data_entry(1, 2),
  };
  #endif /* ifdef CONFIG_SOC_IMX21 */
  
  #ifdef CONFIG_SOC_IMX27
  const struct imx_mxc_mmc_data imx27_mxc_mmc_data[] __initconst = {
  #define imx27_mxc_mmc_data_entry(_id, _hwid)				\
  	imx_mxc_mmc_data_entry(MX27, "imx21-mmc", _id, _hwid, SZ_4K)
  	imx27_mxc_mmc_data_entry(0, 1),
  	imx27_mxc_mmc_data_entry(1, 2),
  };
  #endif /* ifdef CONFIG_SOC_IMX27 */
  
  #ifdef CONFIG_SOC_IMX31
  const struct imx_mxc_mmc_data imx31_mxc_mmc_data[] __initconst = {
  #define imx31_mxc_mmc_data_entry(_id, _hwid)				\
  	imx_mxc_mmc_data_entry(MX31, "imx31-mmc", _id, _hwid, SZ_16K)
  	imx31_mxc_mmc_data_entry(0, 1),
  	imx31_mxc_mmc_data_entry(1, 2),
  };
  #endif /* ifdef CONFIG_SOC_IMX31 */
  
  struct platform_device *__init imx_add_mxc_mmc(
  		const struct imx_mxc_mmc_data *data,
  		const struct imxmmc_platform_data *pdata)
  {
  	struct resource res[] = {
  		{
  			.start = data->iobase,
  			.end = data->iobase + data->iosize - 1,
  			.flags = IORESOURCE_MEM,
  		}, {
  			.start = data->irq,
  			.end = data->irq,
  			.flags = IORESOURCE_IRQ,
  		}, {
  			.start = data->dmareq,
  			.end = data->dmareq,
  			.flags = IORESOURCE_DMA,
  		},
  	};
  	return imx_add_platform_device_dmamask(data->devid, data->id,
  			res, ARRAY_SIZE(res),
  			pdata, sizeof(*pdata), DMA_BIT_MASK(32));
  }