44 строки
1.2 KiB
C
44 строки
1.2 KiB
C
/*
|
|
* 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_t fixup_bigphys_addr(phys_t phys_addr, phys_t size)
|
|
{
|
|
return phys_addr;
|
|
}
|
|
|
|
static inline void __iomem *plat_ioremap(phys_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 */
|