BFE_ENET_DISABLE
CSR_WRITE_4(sc, BFE_ENET_CTRL, BFE_ENET_DISABLE);
bfe_wait_bit(sc, BFE_ENET_CTRL, BFE_ENET_DISABLE, 200, 1);
CSR_WRITE_4(sc, BFE_ENET_CTRL, BFE_ENET_DISABLE);
bfe_wait_bit(sc, BFE_ENET_CTRL, BFE_ENET_DISABLE, 100, 1);