SMSC_HW_CFG
smsc_writereg(un, SMSC_HW_CFG, SMSC_HW_CFG_LRST);
if ((err = smsc_wait_for_bits(un, SMSC_HW_CFG,
if ((err = smsc_readreg(un, SMSC_HW_CFG, ®_val)) != 0) {
smsc_writereg(un, SMSC_HW_CFG, reg_val);
if ((err = smsc_readreg(un, SMSC_HW_CFG, ®_val)) < 0) {
smsc_writereg(un, SMSC_HW_CFG, reg_val);