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