https://bugs.freedesktop.org/show_bug.cgi?id=90777
--- Comment #2 from Alex Deucher alexdeucher@gmail.com --- Created attachment 116221 --> https://bugs.freedesktop.org/attachment.cgi?id=116221&action=edit proper fix
The CRC registers don't need to be programmed. The driver was just updating the wrong register when setting up the ACR packet control.