int len = 0; int na, ns; //在fdt_blob是parent设备的偏移 //获取address_cells数量 na = fdt_address_cells(gd->fdt_blob, dev_of_offset(dev->parent)); if (na < 1) { debug("bad #address-cells\n"); return FDT_ADDR_T_NONE; } //获取size_cells数量 ns = fdt_size_cells(gd->fd...