u-boot/include/mapmem.h
Joe Hershberger 0eb25b6196 common: Make sure arch-specific map_sysmem() is defined
In the case where the arch defines a custom map_sysmem(), make sure that
including just mapmem.h is sufficient to have these functions as they
are when the arch does not override it.

Also split the non-arch specific functions out of common.h

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2015-04-18 11:11:09 -06:00

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/*
* Copyright (c) 2015 National Instruments
*
* (C) Copyright 2015
* Joe Hershberger <joe.hershberger@ni.com>
*
* SPDX-License-Identifier: GPL-2.0
*/
#ifndef __MAPMEM_H
#define __MAPMEM_H
/* Define a null map_sysmem() if the architecture doesn't use it */
# ifdef CONFIG_ARCH_MAP_SYSMEM
#include <asm/io.h>
# else
static inline void *map_sysmem(phys_addr_t paddr, unsigned long len)
{
return (void *)(uintptr_t)paddr;
}
static inline void unmap_sysmem(const void *vaddr)
{
}
static inline phys_addr_t map_to_sysmem(const void *ptr)
{
return (phys_addr_t)(uintptr_t)ptr;
}
# endif
#endif /* __MAPMEM_H */