On Wed, Mar 23, 2022 at 2:28 AM Marcel Ziswiler <[email protected]> wrote: > > Hi Tim > > On Tue, 2022-03-22 at 17:04 -0700, Tim Harvey wrote: > > Greetings, > > > > I'm working on adding board support for an imx8mp SoC board which uses > > the EQoS MAC interface. I'm finding that eqos_start() fails with > > 'EQOS_DMA_MODE_SWR stuck'. I believe this is likely a clock issue but > > not clear what it could be that isn't properly defined in imx8mp.dtsi. > > > > Any ideas? > > I recall having seen this during my early bring-up of mainline U-Boot on our > i.MX 8M Plus based Verdin. > However, it turned out to be some configuration issue of sorts on my side. > Unfortunately, I do not remember the > exact details resp. after much debugging I then went back to the EVK > configuration changing only the console > UART and then piece by piece adopted it further to our hardware and haven't > seen it ever since. As I am > currently anyway working on U-Boot stuff I gave today's master a spin and can > assure you that EQOS works on our > Verdin iMX8M Plus without any issues. Sorry, that I can not give you any > better more specific answer. >
Marcel, Thanks - great advice on booting via evk code. I found I was simply missing the 'setup_eqos' function that set GPR bits and enabled the ENET_125MHz clock Best regards, Tim
