BGMAC_INT_STATUS
bcma_write32(bgmac->bcma.core, BGMAC_INT_STATUS, BGMAC_IS_MDIO);
if (bcma_read32(bgmac->bcma.core, BGMAC_INT_STATUS) & BGMAC_IS_MDIO)
bgmac_write(bgmac, BGMAC_INT_STATUS, ~0);
u32 int_status = bgmac_read(bgmac, BGMAC_INT_STATUS);
bgmac_write(bgmac, BGMAC_INT_STATUS, ~0);
if (bgmac_read(bgmac, BGMAC_INT_STATUS) & (BGMAC_IS_TX0 | BGMAC_IS_RX))