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Atsushi Nemoto5ddcb3c2007-06-26 01:14:01 +09001/*
2 * include/asm-mips/mach-tx49xx/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_TX49XX_IOREMAP_H
10#define __ASM_MACH_TX49XX_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 */
18static inline phys_t fixup_bigphys_addr(phys_t phys_addr, phys_t size)
19{
20 return phys_addr;
21}
22
23static inline void __iomem *plat_ioremap(phys_t offset, unsigned long size,
24 unsigned long flags)
25{
26#ifdef CONFIG_64BIT
27#define TXX9_DIRECTMAP_BASE 0xfff000000ul
28#else
29#define TXX9_DIRECTMAP_BASE 0xff000000ul
30#endif
31 if (offset >= TXX9_DIRECTMAP_BASE &&
32 offset < TXX9_DIRECTMAP_BASE + 0x400000)
33 return (void __iomem *)(unsigned long)(int)offset;
34 return NULL;
35}
36
37static inline int plat_iounmap(const volatile void __iomem *addr)
38{
Atsushi Nemotof24ae122007-07-14 00:06:44 +090039 return (unsigned long)addr >=
40 (unsigned long)(int)(TXX9_DIRECTMAP_BASE & 0xffffffff);
Atsushi Nemoto5ddcb3c2007-06-26 01:14:01 +090041}
42
43#endif /* __ASM_MACH_TX49XX_IOREMAP_H */