42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
/*
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* include/asm-mips/mach-generic/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_LOONGSON_IOREMAP_H
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#define __ASM_MACH_LOONGSON_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_t fixup_bigphys_addr(phys_t phys_addr, phys_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_t offset, unsigned long size,
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unsigned long flags)
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{
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/*gsc3280 1c000000~1fffffff, On-chip peripheral*/
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if ((KSEGX(offset) == KSEG1) && (KSEGX(offset+size-1) == KSEG1) && (flags == _CACHE_UNCACHED))
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return (void *)offset;
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if ((KSEGX(offset) == KSEG0) && (KSEGX(offset+size-1) == KSEG0) && (flags == _CACHE_UNCACHED))
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return (void *)KSEG1ADDR(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 0;
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}
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#endif /* __ASM_MACH_LOONGSON_IOREMAP_H */
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