fdtbus_get_cells
cba = fdtbus_get_cells(buf, addr_cells);
pba = fdtbus_get_cells(buf, paddr_cells);
cl = fdtbus_get_cells(buf, size_cells);
addr = fdtbus_get_cells(buf, addr_cells);
size = fdtbus_get_cells(buf, size_cells);
const uint64_t cba = fdtbus_get_cells(data, addr_cells);
const uint64_t pba = fdtbus_get_cells(data, paddr_cells);
const uint64_t cl = fdtbus_get_cells(data, size_cells);
uint64_t fdtbus_get_cells(const uint8_t *, int);