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| author | Marek Szyprowski <m.szyprowski@samsung.com> | 2014-02-28 14:42:48 +0100 |
|---|---|---|
| committer | Grant Likely <grant.likely@linaro.org> | 2014-03-11 17:26:58 +0000 |
| commit | 3f0c8206644836e4f10a6b9fc47cda6a9a372f9b (patch) | |
| tree | c85e72e465074dd94761f8a685a2110a3b7f8db9 /include/linux/of_reserved_mem.h | |
| parent | e8d9d1f5485b52ec3c4d7af839e6914438f6c285 (diff) | |
| download | lwn-3f0c8206644836e4f10a6b9fc47cda6a9a372f9b.tar.gz lwn-3f0c8206644836e4f10a6b9fc47cda6a9a372f9b.zip | |
drivers: of: add initialization code for dynamic reserved memory
This patch adds support for dynamically allocated reserved memory regions
declared in device tree. Such regions are defined by 'size', 'alignment'
and 'alloc-ranges' properties.
Based on previous code provided by Josh Cartwright <joshc@codeaurora.org>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Diffstat (limited to 'include/linux/of_reserved_mem.h')
| -rw-r--r-- | include/linux/of_reserved_mem.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/linux/of_reserved_mem.h b/include/linux/of_reserved_mem.h new file mode 100644 index 000000000000..89226ed7d954 --- /dev/null +++ b/include/linux/of_reserved_mem.h @@ -0,0 +1,21 @@ +#ifndef __OF_RESERVED_MEM_H +#define __OF_RESERVED_MEM_H + +struct reserved_mem { + const char *name; + unsigned long fdt_node; + phys_addr_t base; + phys_addr_t size; +}; + +#ifdef CONFIG_OF_RESERVED_MEM +void fdt_init_reserved_mem(void); +void fdt_reserved_mem_save_node(unsigned long node, const char *uname, + phys_addr_t base, phys_addr_t size); +#else +static inline void fdt_init_reserved_mem(void) { } +static inline void fdt_reserved_mem_save_node(unsigned long node, + const char *uname, phys_addr_t base, phys_addr_t size) { } +#endif + +#endif /* __OF_RESERVED_MEM_H */ |