fdt_get_phandle
uint32_t fdt_get_phandle(const void *fdt, int nodeoffset);
phandle = fdt_get_phandle(fdt, symbol_off);
value = fdt_get_phandle(fdt, offset);
if (fdt_get_phandle(fdt, offset) == phandle)
info->phandle = fdt_get_phandle(fdt, subNode);