Hi, On 2024/05/10 7:41, Luiz Augusto von Dentz wrote: <snip> > If I print the actual value then we got: > > Primary PHY: Reserved (0x81) > > I guess one needs to disregard the reserved range, well until they are > no longer reserved then it will no longer work. Perhaps we should talk > to broadcom to know what is up with using reserved values and if that > is an apple thing then perhaps we could ask them to provide firmware > that acts according to the spec. Apple and Broadcom do not support Linux on this platform. The kernel has to work with the existing firmware (which is the firmware macOS uses), we don't get to request changes. If the firmware has quirks the kernel has to deal with it, that's how it goes. It would be great if we had vendor support, but that is not something we can control. This is common (Linux is full of quirks to support noncompliant hardware/firmware). - Hector