SPRZ447E July 2017 – July 2024 AM5746 , AM5748 , AM5749
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).
AM574x SR 1.0
AM576x SR 1.0
AM574x: 1.0
DRA75xP, DRA74xP, DRA77xP, DRA76xP: 1.0
TDA2Px: 1.0
AM576x: 1.0