67 lines
2.1 KiB
C
67 lines
2.1 KiB
C
/*
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* OF Flat tree builder
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*
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*/
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#ifndef FT_BUILD_H
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#define FT_BUILD_H
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#include <linux/types.h>
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#include <asm/u-boot.h>
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/* Definitions used by the flattened device tree */
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#define OF_DT_HEADER 0xd00dfeed /* marker */
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#define OF_DT_BEGIN_NODE 0x1 /* Start of node, full name */
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#define OF_DT_END_NODE 0x2 /* End node */
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#define OF_DT_PROP 0x3 /* Property: name off, size,
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* content */
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#define OF_DT_NOP 0x4 /* nop */
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#define OF_DT_END 0x9
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#define OF_DT_VERSION 0x10
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struct boot_param_header {
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u32 magic; /* magic word OF_DT_HEADER */
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u32 totalsize; /* total size of DT block */
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u32 off_dt_struct; /* offset to structure */
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u32 off_dt_strings; /* offset to strings */
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u32 off_mem_rsvmap; /* offset to memory reserve map */
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u32 version; /* format version */
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u32 last_comp_version; /* last compatible version */
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/* version 2 fields below */
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u32 boot_cpuid_phys; /* Physical CPU id we're booting on */
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/* version 3 fields below */
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u32 dt_strings_size; /* size of the DT strings block */
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};
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struct ft_cxt {
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struct boot_param_header *bph;
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int max_size; /* maximum size of tree */
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int overflow; /* set when this happens */
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u8 *p, *pstr, *pres; /* running pointers */
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u8 *p_begin, *pstr_begin, *pres_begin; /* starting pointers */
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u8 *p_anchor; /* start of constructed area */
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int struct_size, strings_size, res_size;
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};
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void ft_begin_node(struct ft_cxt *cxt, const char *name);
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void ft_end_node(struct ft_cxt *cxt);
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void ft_begin_tree(struct ft_cxt *cxt);
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int ft_end_tree(struct ft_cxt *cxt);
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void ft_nop(struct ft_cxt *cxt);
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void ft_prop(struct ft_cxt *cxt, const char *name, const void *data, int sz);
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void ft_prop_str(struct ft_cxt *cxt, const char *name, const char *str);
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void ft_prop_int(struct ft_cxt *cxt, const char *name, int val);
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void ft_begin(struct ft_cxt *cxt, void *blob, int max_size);
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void ft_add_rsvmap(struct ft_cxt *cxt, u64 physaddr, u64 size);
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void ft_setup(void *blob, int size, bd_t * bd);
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void ft_dump_blob(const void *bphp);
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void ft_merge_blob(struct ft_cxt *cxt, void *blob);
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void *ft_get_prop(void *bphp, const char *propname, int *szp);
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#endif
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