arch/mips/include/asm/mach-bcm63xx/ioremap.h

   1 #ifndef BCM63XX_IOREMAP_H_
   2 #define BCM63XX_IOREMAP_H_
   3
   4 #include <bcm63xx_cpu.h>
   5
   6 static inline phys_t fixup_bigphys_addr(phys_t phys_addr, phys_t size)
   7 {
   8         return phys_addr;
   9 }
  10
  11 static inline int is_bcm63xx_internal_registers(phys_t offset)
  12 {
  13         switch (bcm63xx_get_cpu_id()) {
  14         case BCM6338_CPU_ID:
  15         case BCM6345_CPU_ID:
  16         case BCM6348_CPU_ID:
  17         case BCM6358_CPU_ID:
  18                 if (offset >= 0xfff00000)
  19                         return 1;
  20                 break;
  21         case BCM6368_CPU_ID:
  22                 if (offset >= 0xb0000000 && offset < 0xb1000000)
  23                         return 1;
  24                 break;
  25         }
  26         return 0;
  27 }
  28
  29 static inline void __iomem *plat_ioremap(phys_t offset, unsigned long size,
  30                                          unsigned long flags)
  31 {
  32         if (is_bcm63xx_internal_registers(offset))
  33                 return (void __iomem *)offset;
  34         return NULL;
  35 }
  36
  37 static inline int plat_iounmap(const volatile void __iomem *addr)
  38 {
  39         return is_bcm63xx_internal_registers((unsigned long)addr);
  40 }
  41
  42 #endif /* BCM63XX_IOREMAP_H_ */