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kernel/linux-imx6_3.14.28/arch/arm/mach-gemini/mm.c 2.41 KB
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  /*
   *  Static mappings for Gemini
   *
   *  Copyright (C) 2001-2006 Storlink, Corp.
   *  Copyright (C) 2008-2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 2 of the License, or
   * (at your option) any later version.
   */
  #include <linux/mm.h>
  #include <linux/init.h>
  
  #include <asm/mach/map.h>
  
  #include <mach/hardware.h>
  
  /* Page table mapping for I/O region */
  static struct map_desc gemini_io_desc[] __initdata = {
  	{
  		.virtual	= (unsigned long)IO_ADDRESS(GEMINI_GLOBAL_BASE),
  		.pfn		=__phys_to_pfn(GEMINI_GLOBAL_BASE),
  		.length		= SZ_512K,
  		.type 		= MT_DEVICE,
  	}, {
  		.virtual	= (unsigned long)IO_ADDRESS(GEMINI_UART_BASE),
  		.pfn		= __phys_to_pfn(GEMINI_UART_BASE),
  		.length		= SZ_512K,
  		.type 		= MT_DEVICE,
  	}, {
  		.virtual	= (unsigned long)IO_ADDRESS(GEMINI_TIMER_BASE),
  		.pfn		= __phys_to_pfn(GEMINI_TIMER_BASE),
  		.length		= SZ_512K,
  		.type 		= MT_DEVICE,
  	}, {
  		.virtual	= (unsigned long)IO_ADDRESS(GEMINI_INTERRUPT_BASE),
  		.pfn		= __phys_to_pfn(GEMINI_INTERRUPT_BASE),
  		.length		= SZ_512K,
  		.type 		= MT_DEVICE,
  	}, {
  		.virtual	= (unsigned long)IO_ADDRESS(GEMINI_POWER_CTRL_BASE),
  		.pfn		= __phys_to_pfn(GEMINI_POWER_CTRL_BASE),
  		.length		= SZ_512K,
  		.type 		= MT_DEVICE,
  	}, {
  		.virtual	= (unsigned long)IO_ADDRESS(GEMINI_GPIO_BASE(0)),
  		.pfn		= __phys_to_pfn(GEMINI_GPIO_BASE(0)),
  		.length		= SZ_512K,
  		.type 		= MT_DEVICE,
  	}, {
  		.virtual	= (unsigned long)IO_ADDRESS(GEMINI_GPIO_BASE(1)),
  		.pfn		= __phys_to_pfn(GEMINI_GPIO_BASE(1)),
  		.length		= SZ_512K,
  		.type 		= MT_DEVICE,
  	}, {
  		.virtual	= (unsigned long)IO_ADDRESS(GEMINI_GPIO_BASE(2)),
  		.pfn		= __phys_to_pfn(GEMINI_GPIO_BASE(2)),
  		.length		= SZ_512K,
  		.type 		= MT_DEVICE,
  	}, {
  		.virtual	= (unsigned long)IO_ADDRESS(GEMINI_FLASH_CTRL_BASE),
  		.pfn		= __phys_to_pfn(GEMINI_FLASH_CTRL_BASE),
  		.length		= SZ_512K,
  		.type 		= MT_DEVICE,
  	}, {
  		.virtual	= (unsigned long)IO_ADDRESS(GEMINI_DRAM_CTRL_BASE),
  		.pfn		= __phys_to_pfn(GEMINI_DRAM_CTRL_BASE),
  		.length		= SZ_512K,
  		.type 		= MT_DEVICE,
  	}, {
  		.virtual	= (unsigned long)IO_ADDRESS(GEMINI_GENERAL_DMA_BASE),
  		.pfn		= __phys_to_pfn(GEMINI_GENERAL_DMA_BASE),
  		.length		= SZ_512K,
  		.type 		= MT_DEVICE,
  	},
  };
  
  void __init gemini_map_io(void)
  {
  	iotable_init(gemini_io_desc, ARRAY_SIZE(gemini_io_desc));
  }