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kernel/linux-imx6_3.14.28/arch/arm/mm/iomap.c 859 Bytes
6b13f685e   김민수   BSP 최초 추가
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  /*
   *  linux/arch/arm/mm/iomap.c
   *
   * Map IO port and PCI memory spaces so that {read,write}[bwl] can
   * be used to access this memory.
   */
  #include <linux/module.h>
  #include <linux/pci.h>
  #include <linux/ioport.h>
  #include <linux/io.h>
  
  unsigned long vga_base;
  EXPORT_SYMBOL(vga_base);
  
  #ifdef __io
  void __iomem *ioport_map(unsigned long port, unsigned int nr)
  {
  	return __io(port);
  }
  EXPORT_SYMBOL(ioport_map);
  
  void ioport_unmap(void __iomem *addr)
  {
  }
  EXPORT_SYMBOL(ioport_unmap);
  #endif
  
  #ifdef CONFIG_PCI
  unsigned long pcibios_min_io = 0x1000;
  EXPORT_SYMBOL(pcibios_min_io);
  
  unsigned long pcibios_min_mem = 0x01000000;
  EXPORT_SYMBOL(pcibios_min_mem);
  
  void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
  {
  	if ((unsigned long)addr >= VMALLOC_START &&
  	    (unsigned long)addr < VMALLOC_END)
  		iounmap(addr);
  }
  EXPORT_SYMBOL(pci_iounmap);
  #endif