LXR linux/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
   6static inline phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
   7{
   8        return phys_addr;
   9}
  10
  11static inline int is_bcm63xx_internal_registers(phys_addr_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
  35static inline void __iomem *plat_ioremap(phys_addr_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
  43static 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_ */
  49