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kernel/linux-rt-4.4.41/arch/mips/include/asm/mach-bcm63xx/ioremap.h 1 KB
5113f6f70   김현기   kernel add
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  #ifndef BCM63XX_IOREMAP_H_
  #define BCM63XX_IOREMAP_H_
  
  #include <bcm63xx_cpu.h>
  
  static inline phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
  {
  	return phys_addr;
  }
  
  static inline int is_bcm63xx_internal_registers(phys_addr_t offset)
  {
  	switch (bcm63xx_get_cpu_id()) {
  	case BCM3368_CPU_ID:
  		if (offset >= 0xfff80000)
  			return 1;
  		break;
  	case BCM6338_CPU_ID:
  	case BCM6345_CPU_ID:
  	case BCM6348_CPU_ID:
  	case BCM6358_CPU_ID:
  		if (offset >= 0xfff00000)
  			return 1;
  		break;
  	case BCM6328_CPU_ID:
  	case BCM6362_CPU_ID:
  	case BCM6368_CPU_ID:
  		if (offset >= 0xb0000000 && offset < 0xb1000000)
  			return 1;
  		break;
  	}
  	return 0;
  }
  
  static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size,
  					 unsigned long flags)
  {
  	if (is_bcm63xx_internal_registers(offset))
  		return (void __iomem *)offset;
  	return NULL;
  }
  
  static inline int plat_iounmap(const volatile void __iomem *addr)
  {
  	return is_bcm63xx_internal_registers((unsigned long)addr);
  }
  
  #endif /* BCM63XX_IOREMAP_H_ */