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| author | Joe Hershberger <joe.hershberger@ni.com> | 2015-03-22 17:08:59 -0500 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-04-18 11:11:09 -0600 |
| commit | 0eb25b619699270a8af95c2f76791fd6c4b52972 (patch) | |
| tree | bb85868e6f9403bb59928feccb08662553e93c25 /include/mapmem.h | |
| parent | eb374221ecac57a85009b801110249e5a0d09ad1 (diff) | |
| download | u-boot-0eb25b619699270a8af95c2f76791fd6c4b52972.tar.gz | |
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>
Diffstat (limited to 'include/mapmem.h')
| -rw-r--r-- | include/mapmem.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/include/mapmem.h b/include/mapmem.h new file mode 100644 index 0000000000..42ef3e8c2a --- /dev/null +++ b/include/mapmem.h @@ -0,0 +1,32 @@ +/* + * 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 */ |