arch/mips/include/asm/mach-tx39xx/ioremap.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  *      include/asm-mips/mach-tx39xx/ioremap.h
   4  */
   5 #ifndef __ASM_MACH_TX39XX_IOREMAP_H
   6 #define __ASM_MACH_TX39XX_IOREMAP_H
   7
   8 #include <linux/types.h>
   9
  10 static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size,
  11         unsigned long flags)
  12 {
  13 #define TXX9_DIRECTMAP_BASE     0xff000000ul
  14         if (offset >= TXX9_DIRECTMAP_BASE &&
  15             offset < TXX9_DIRECTMAP_BASE + 0xff0000)
  16                 return (void __iomem *)offset;
  17         return NULL;
  18 }
  19
  20 static inline int plat_iounmap(const volatile void __iomem *addr)
  21 {
  22         return (unsigned long)addr >= TXX9_DIRECTMAP_BASE;
  23 }
  24
  25 #endif /* __ASM_MACH_TX39XX_IOREMAP_H */