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author | Sascha Hauer <s.hauer@pengutronix.de> | 2011-08-09 19:12:10 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2011-10-19 10:08:48 +0200 |
commit | 9135dd5f672e2805f8ad08a6535fc36b7eb8957c (patch) | |
tree | 4f61313dab3261f296a970b27e81b514d81e07d4 /include/fdt.h | |
parent | 4c6ac74566d80f3b0e9b01b340ea6819a40c829f (diff) | |
download | barebox-9135dd5f672e2805f8ad08a6535fc36b7eb8957c.tar.gz barebox-9135dd5f672e2805f8ad08a6535fc36b7eb8957c.tar.xz |
initial libfdt support
vanilla libfdt 1.3.0 from the dtc git:
git://git.jdl.com/software/dtc.git
Only small adjustments to compile with barebox
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'include/fdt.h')
-rw-r--r-- | include/fdt.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/include/fdt.h b/include/fdt.h new file mode 100644 index 0000000000..48ccfd9100 --- /dev/null +++ b/include/fdt.h @@ -0,0 +1,60 @@ +#ifndef _FDT_H +#define _FDT_H + +#ifndef __ASSEMBLY__ + +struct fdt_header { + uint32_t magic; /* magic word FDT_MAGIC */ + uint32_t totalsize; /* total size of DT block */ + uint32_t off_dt_struct; /* offset to structure */ + uint32_t off_dt_strings; /* offset to strings */ + uint32_t off_mem_rsvmap; /* offset to memory reserve map */ + uint32_t version; /* format version */ + uint32_t last_comp_version; /* last compatible version */ + + /* version 2 fields below */ + uint32_t boot_cpuid_phys; /* Which physical CPU id we're + booting on */ + /* version 3 fields below */ + uint32_t size_dt_strings; /* size of the strings block */ + + /* version 17 fields below */ + uint32_t size_dt_struct; /* size of the structure block */ +}; + +struct fdt_reserve_entry { + uint64_t address; + uint64_t size; +}; + +struct fdt_node_header { + uint32_t tag; + char name[0]; +}; + +struct fdt_property { + uint32_t tag; + uint32_t len; + uint32_t nameoff; + char data[0]; +}; + +#endif /* !__ASSEMBLY */ + +#define FDT_MAGIC 0xd00dfeed /* 4: version, 4: total size */ +#define FDT_TAGSIZE sizeof(uint32_t) + +#define FDT_BEGIN_NODE 0x1 /* Start node: full name */ +#define FDT_END_NODE 0x2 /* End node */ +#define FDT_PROP 0x3 /* Property: name off, + size, content */ +#define FDT_NOP 0x4 /* nop */ +#define FDT_END 0x9 + +#define FDT_V1_SIZE (7*sizeof(uint32_t)) +#define FDT_V2_SIZE (FDT_V1_SIZE + sizeof(uint32_t)) +#define FDT_V3_SIZE (FDT_V2_SIZE + sizeof(uint32_t)) +#define FDT_V16_SIZE FDT_V3_SIZE +#define FDT_V17_SIZE (FDT_V16_SIZE + sizeof(uint32_t)) + +#endif /* _FDT_H */ |