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kernel/linux-rt-4.4.41/arch/arm/mach-imx/devices/platform-mxc_nand.c 2.11 KB
5113f6f70   김현기   kernel add
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  /*
   * Copyright (C) 2009-2010 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 <asm/sizes.h>
  
  #include "../hardware.h"
  #include "devices-common.h"
  
  #define imx_mxc_nand_data_entry_single(soc, _devid, _size)		\
  	{								\
  		.devid = _devid,					\
  		.iobase = soc ## _NFC_BASE_ADDR,			\
  		.iosize = _size,					\
  		.irq = soc ## _INT_NFC					\
  	}
  
  #define imx_mxc_nandv3_data_entry_single(soc, _devid, _size)		\
  	{								\
  		.devid = _devid,					\
  		.id = -1,						\
  		.iobase = soc ## _NFC_BASE_ADDR,			\
  		.iosize = _size,					\
  		.axibase = soc ## _NFC_AXI_BASE_ADDR,			\
  		.irq = soc ## _INT_NFC					\
  	}
  
  #ifdef CONFIG_SOC_IMX21
  const struct imx_mxc_nand_data imx21_mxc_nand_data __initconst =
  	imx_mxc_nand_data_entry_single(MX21, "imx21-nand", SZ_4K);
  #endif /* ifdef CONFIG_SOC_IMX21 */
  
  #ifdef CONFIG_SOC_IMX27
  const struct imx_mxc_nand_data imx27_mxc_nand_data __initconst =
  	imx_mxc_nand_data_entry_single(MX27, "imx27-nand", SZ_4K);
  #endif /* ifdef CONFIG_SOC_IMX27 */
  
  #ifdef CONFIG_SOC_IMX31
  const struct imx_mxc_nand_data imx31_mxc_nand_data __initconst =
  	imx_mxc_nand_data_entry_single(MX31, "imx27-nand", SZ_4K);
  #endif
  
  #ifdef CONFIG_SOC_IMX35
  const struct imx_mxc_nand_data imx35_mxc_nand_data __initconst =
  	imx_mxc_nand_data_entry_single(MX35, "imx25-nand", SZ_8K);
  #endif
  
  struct platform_device *__init imx_add_mxc_nand(
  		const struct imx_mxc_nand_data *data,
  		const struct mxc_nand_platform_data *pdata)
  {
  	/* AXI has to come first, that's how the mxc_nand driver expect it */
  	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->axibase,
  			.end = data->axibase + SZ_16K - 1,
  			.flags = IORESOURCE_MEM,
  		},
  	};
  	return imx_add_platform_device(data->devid, data->id,
  			res, ARRAY_SIZE(res) - !data->axibase,
  			pdata, sizeof(*pdata));
  }