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kernel add
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/*
* include/asm-mips/mach-tx49xx/ioremap.h
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#ifndef __ASM_MACH_TX49XX_IOREMAP_H
#define __ASM_MACH_TX49XX_IOREMAP_H
#include <linux/types.h>
/*
* Allow physical addresses to be fixed up to help peripherals located
* outside the low 32-bit range -- generic pass-through version.
*/
static inline phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
{
return phys_addr;
}
static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size,
unsigned long flags)
{
#ifdef CONFIG_64BIT
#define TXX9_DIRECTMAP_BASE 0xfff000000ul
#else
#define TXX9_DIRECTMAP_BASE 0xff000000ul
#endif
if (offset >= TXX9_DIRECTMAP_BASE &&
offset < TXX9_DIRECTMAP_BASE + 0x400000)
return (void __iomem *)(unsigned long)(int)offset;
return NULL;
}
static inline int plat_iounmap(const volatile void __iomem *addr)
{
return (unsigned long)addr >=
(unsigned long)(int)(TXX9_DIRECTMAP_BASE & 0xffffffff);
}
#endif /* __ASM_MACH_TX49XX_IOREMAP_H */
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