f618c4703a
Add support for custom reserved memory drivers. Call their init() function for each reserved region and prepare for using operations provided by them with by the reserved_mem->ops array. 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>
54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
#ifndef __OF_RESERVED_MEM_H
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#define __OF_RESERVED_MEM_H
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struct device;
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struct of_phandle_args;
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struct reserved_mem_ops;
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struct reserved_mem {
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const char *name;
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unsigned long fdt_node;
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const struct reserved_mem_ops *ops;
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phys_addr_t base;
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phys_addr_t size;
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void *priv;
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};
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struct reserved_mem_ops {
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void (*device_init)(struct reserved_mem *rmem,
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struct device *dev);
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void (*device_release)(struct reserved_mem *rmem,
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struct device *dev);
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};
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typedef int (*reservedmem_of_init_fn)(struct reserved_mem *rmem,
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unsigned long node, const char *uname);
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#ifdef CONFIG_OF_RESERVED_MEM
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void fdt_init_reserved_mem(void);
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void fdt_reserved_mem_save_node(unsigned long node, const char *uname,
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phys_addr_t base, phys_addr_t size);
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#define RESERVEDMEM_OF_DECLARE(name, compat, init) \
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static const struct of_device_id __reservedmem_of_table_##name \
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__used __section(__reservedmem_of_table) \
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= { .compatible = compat, \
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.data = (init == (reservedmem_of_init_fn)NULL) ? \
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init : init }
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#else
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static inline void fdt_init_reserved_mem(void) { }
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static inline void fdt_reserved_mem_save_node(unsigned long node,
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const char *uname, phys_addr_t base, phys_addr_t size) { }
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#define RESERVEDMEM_OF_DECLARE(name, compat, init) \
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static const struct of_device_id __reservedmem_of_table_##name \
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__attribute__((unused)) \
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= { .compatible = compat, \
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.data = (init == (reservedmem_of_init_fn)NULL) ? \
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init : init }
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#endif
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#endif /* __OF_RESERVED_MEM_H */
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