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

INCLUDED FROM

DEFINITIONS

1. fixup_bigphys_addr
2. plat_ioremap
3. plat_iounmap

   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 /*
  11  * Allow physical addresses to be fixed up to help peripherals located
  12  * outside the low 32-bit range -- generic pass-through version.
  13  */
  14 static inline phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
  15 {
  16         return phys_addr;
  17 }
  18 
  19 static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size,
  20         unsigned long flags)
  21 {
  22 #define TXX9_DIRECTMAP_BASE     0xff000000ul
  23         if (offset >= TXX9_DIRECTMAP_BASE &&
  24             offset < TXX9_DIRECTMAP_BASE + 0xff0000)
  25                 return (void __iomem *)offset;
  26         return NULL;
  27 }
  28 
  29 static inline int plat_iounmap(const volatile void __iomem *addr)
  30 {
  31         return (unsigned long)addr >= TXX9_DIRECTMAP_BASE;
  32 }
  33 
  34 #endif /* __ASM_MACH_TX39XX_IOREMAP_H */