fdt_get_range
return fdt_get_range(node, 0, pa, size);
error = fdt_get_range(OF_parent(node), 0, &phys, &size);
if ((r = fdt_get_range(node, 0, &base, &size)) == 0) {
int fdt_get_range(phandle_t, int, u_long *, u_long *);