From 091463c1057f50b47156a138d7d1dbd09494a6d5 Mon Sep 17 00:00:00 2001 From: Kimplul Date: Mon, 11 Oct 2021 13:58:11 +0300 Subject: Moved some functions to common/ --- common/fdt.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 common/fdt.c (limited to 'common/fdt.c') diff --git a/common/fdt.c b/common/fdt.c new file mode 100644 index 0000000..c554b25 --- /dev/null +++ b/common/fdt.c @@ -0,0 +1,24 @@ +#include + +struct cell_info_t get_cellinfo(void *fdt, int offset) +{ + return (struct cell_info_t){ + fdt_size_cells(fdt, offset), + fdt_address_cells(fdt, offset) + }; +} + +/* how "reg" is interpreted depends on the parent node */ +struct cell_info_t get_reginfo(void *fdt, const char *path) +{ + const char *i = strrchr(path, '/'); + if(!i) + return (struct cell_info_t){0, 0}; + + size_t baselen = i - path; + if(i == 0) + /* root node */ + baselen = 1; + + return get_cellinfo(fdt, fdt_path_offset_namelen(fdt, path, baselen)); +} -- cgit v1.3