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 int is_bmips_internal_registers(phys_addr_t offset)
   8 {
   9         if (offset >= 0xfff80000)
  10                 return 1;
  11
  12         return 0;
  13 }
  14
  15 static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size,
  16                                          unsigned long flags)
  17 {
  18         if (is_bmips_internal_registers(offset))
  19                 return (void __iomem *)offset;
  20
  21         return NULL;
  22 }
  23
  24 static inline int plat_iounmap(const volatile void __iomem *addr)
  25 {
  26         return is_bmips_internal_registers((unsigned long)addr);
  27 }
  28
  29 #endif /* __ASM_MACH_BMIPS_IOREMAP_H */