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TOMOYO Linux Cross Reference
Linux/arch/mips/include/asm/mach-tx39xx/ioremap.h

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  1 /*
  2  *      include/asm-mips/mach-tx39xx/ioremap.h
  3  *
  4  *      This program is free software; you can redistribute it and/or
  5  *      modify it under the terms of the GNU General Public License
  6  *      as published by the Free Software Foundation; either version
  7  *      2 of the License, or (at your option) any later version.
  8  */
  9 #ifndef __ASM_MACH_TX39XX_IOREMAP_H
 10 #define __ASM_MACH_TX39XX_IOREMAP_H
 11 
 12 #include <linux/types.h>
 13 
 14 /*
 15  * Allow physical addresses to be fixed up to help peripherals located
 16  * outside the low 32-bit range -- generic pass-through version.
 17  */
 18 static inline phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
 19 {
 20         return phys_addr;
 21 }
 22 
 23 static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size,
 24         unsigned long flags)
 25 {
 26 #define TXX9_DIRECTMAP_BASE     0xff000000ul
 27         if (offset >= TXX9_DIRECTMAP_BASE &&
 28             offset < TXX9_DIRECTMAP_BASE + 0xff0000)
 29                 return (void __iomem *)offset;
 30         return NULL;
 31 }
 32 
 33 static inline int plat_iounmap(const volatile void __iomem *addr)
 34 {
 35         return (unsigned long)addr >= TXX9_DIRECTMAP_BASE;
 36 }
 37 
 38 #endif /* __ASM_MACH_TX39XX_IOREMAP_H */
 39 

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