254cc7743e84(5.5) 4f912b898dc2(5.4) b4d0aac23e35(5.4)
UART testing is passed. seems no more commits needed.
254cc7743e84(5.5) 4f912b898dc2(5.4) b4d0aac23e35(5.4)
UART testing is passed. seems no more commits needed.