MAC_WK_SRC
rb[ETH_WK_SRC] = lan743x_csr_read(adapter, MAC_WK_SRC);
lan743x_csr_write(adapter, MAC_WK_SRC, 0xFFFFFFFF);
ret = lan743x_csr_read(adapter, MAC_WK_SRC);
lan743x_csr_write(adapter, MAC_WK_SRC, data);