1/*
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_addr_t fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
19{
20	return phys_addr;
21}
22
23static inline void __iomem *plat_ioremap(phys_addr_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{
39	return (unsigned long)addr >=
40		(unsigned long)(int)(TXX9_DIRECTMAP_BASE & 0xffffffff);
41}
42
43#endif /* __ASM_MACH_TX49XX_IOREMAP_H */
44