}
if (ah->ah_config.serialize_regmode == SER_REG_MODE_AUTO) {
- if (ah->ah_macVersion == AR_SREV_VERSION_5416_PCI) {
+ if (ah->ah_macVersion == AR_SREV_VERSION_5416_PCI ||
+ (AR_SREV_9280(ah) && !ah->ah_isPciExpress)) {
ah->ah_config.serialize_regmode =
SER_REG_MODE_ON;
} else {