GM_SMI_CTRL
GMAC_WRITE_2(sc, sc_if->msk_port, GM_SMI_CTRL,
val = GMAC_READ_2(sc, sc_if->msk_port, GM_SMI_CTRL);
GMAC_WRITE_2(sc, sc_if->msk_port, GM_SMI_CTRL,
if ((GMAC_READ_2(sc, sc_if->msk_port, GM_SMI_CTRL) &