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fdt: Add fdt_translate_address to convert reg node to cpu phys addr

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This code is extracted out of the Linux Kernel code from
arch/powerpc/kernel/prom_parse.c.

We maintain some of the same structure to support multiple bus types even
though we only have one in the current code.  In the future we might want
to translate across a PCI bus and thus it will be easier to add that
functionality back in.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
This commit is contained in:
Kumar Gala 2010-06-16 14:27:38 -05:00
parent 46f3e3851d
commit a0342c0804
2 changed files with 265 additions and 0 deletions
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include/fdt_support.h
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@ -83,6 +83,7 @@ int fdt_fixup_nor_flash_size(void *blob, int cs, u32 size);
void fdt_fixup_mtdparts(void *fdt, void *node_info, int node_info_size);
void fdt_del_node_and_alias(void *blob, const char *alias);
u64 fdt_translate_address(void *blob, int node_offset, const u32 *in_addr);
#endif /* ifdef CONFIG_OF_LIBFDT */
#endif /* ifndef __FDT_SUPPORT_H */