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 BCM3368_CPU_ID:
  15                 if (offset >= 0xfff80000)
  16                         return 1;
  17                 break;
  18         case BCM6338_CPU_ID:
  19         case BCM6345_CPU_ID:
  20         case BCM6348_CPU_ID:
  21         case BCM6358_CPU_ID:
  22                 if (offset >= 0xfff00000)
  23                         return 1;
  24                 break;
  25         case BCM6328_CPU_ID:
  26         case BCM6362_CPU_ID:
  27         case BCM6368_CPU_ID:
  28                 if (offset >= 0xb0000000 && offset < 0xb1000000)
  29                         return 1;
  30                 break;
  31         }
  32         return 0;
  33 }
  34
  35 static inline void __iomem *plat_ioremap(phys_t offset, unsigned long size,
  36                                          unsigned long flags)
  37 {
  38         if (is_bcm63xx_internal_registers(offset))
  39                 return (void __iomem *)offset;
  40         return NULL;
  41 }
  42
  43 static inline int plat_iounmap(const volatile void __iomem *addr)
  44 {
  45         return is_bcm63xx_internal_registers((unsigned long)addr);
  46 }
  47
  48 #endif /* BCM63XX_IOREMAP_H_ */