common/fdt.c


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#include <libfdt.h>

struct cell_info get_cellinfo(const void *fdt, const int offset)
{
	return (struct cell_info){
		fdt_size_cells(fdt, offset),
		fdt_address_cells(fdt, offset)
	};
}

/* how "reg" is interpreted depends on the parent node */
struct cell_info get_reginfo(const void *fdt, const char *path)
{
	const char *i = strrchr(path, '/');
	if(!i)
		return (struct cell_info){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));
}