SPRZ436H October 2015 – July 2024 AM5706 , AM5708 , AM5716 , AM5718 , AM5718-HIREL
Unexpected USB Link State Value upon U3 Exit by USB3.0 Link
Low
When USB3.0 link is exiting U3 state (as result of link recovery request USB_DCTL[8:5] ULSTCHNGREQ = 0x8), the USB_DSTS[21:18] USBLNKST field is updated to 0xF (Reset/Resume State), which state is not a valid LTSSM state in this case.
Ignore the Reset/Resume State value (USB_DSTS[21:18] USBLNKST = 0xF).
AM571x SR 2.1, 2.0, 1.0
AM570x SR 2.1, 2.0
DRA79x: 2.1, 2.0
TDA2Ex (23mm): 2.0, 1.0
TDA2Ex (17mm): 2.1, 2.0
AM571x: 2.1, 2.0, 1.0
AM570x: 2.1, 2.0
DRA72x: 2.0, 1.0
DRA71x: 2.1, 2.0