ioremap.h

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/*
 *  include/asm-mips/mach-tx39xx/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_TX39XX_IOREMAP_H
#define __ASM_MACH_TX39XX_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)
{
#define TXX9_DIRECTMAP_BASE 0xff000000ul
    if (offset >= TXX9_DIRECTMAP_BASE &&
        offset < TXX9_DIRECTMAP_BASE + 0xff0000)
        return (void __iomem *)offset;
    return NULL;
}

static inline int plat_iounmap(const volatile void __iomem *addr)
{
    return (unsigned long)addr >= TXX9_DIRECTMAP_BASE;
}

#endif /* __ASM_MACH_TX39XX_IOREMAP_H */