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

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __ASM_MACH_BMIPS_IOREMAP_H
   3 #define __ASM_MACH_BMIPS_IOREMAP_H
   4
   5 #include <linux/types.h>
   6
   7 static inline phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
   8 {
   9         return phys_addr;
  10 }
  11
  12 static inline int is_bmips_internal_registers(phys_addr_t offset)
  13 {
  14         if (offset >= 0xfff80000)
  15                 return 1;
  16
  17         return 0;
  18 }
  19
  20 static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size,
  21                                          unsigned long flags)
  22 {
  23         if (is_bmips_internal_registers(offset))
  24                 return (void __iomem *)offset;
  25
  26         return NULL;
  27 }
  28
  29 static inline int plat_iounmap(const volatile void __iomem *addr)
  30 {
  31         return is_bmips_internal_registers((unsigned long)addr);
  32 }
  33
  34 #endif /* __ASM_MACH_BMIPS_IOREMAP_H */