SMSC_MII_ADDR
if (smsc_wait_for_bits(un, SMSC_MII_ADDR, SMSC_MII_BUSY) != 0) {
smsc_writereg(un, SMSC_MII_ADDR, addr);
if (smsc_wait_for_bits(un, SMSC_MII_ADDR, SMSC_MII_BUSY) != 0) {
if (smsc_wait_for_bits(un, SMSC_MII_ADDR, SMSC_MII_BUSY) != 0) {
smsc_writereg(un, SMSC_MII_ADDR, addr);
if (smsc_wait_for_bits(un, SMSC_MII_ADDR, SMSC_MII_BUSY) != 0) {