On 06/11/2019 19:06, Heinrich Schuchardt wrote: > On 11/6/19 3:41 PM, [email protected] wrote: >> From: Matthias Brugger <[email protected]> >> >> Provide a defconfig which allows us to boot Raspberrry Pi 4 >> and Raspberry Pi 3 Model B/B+ >> Instead of using the embedded DTB as done in RPi3 we use the >> devicetree provided by the firmware. > > How different are the DTBs provided by different firmware releases? > > Could we run into problems because some elder or newer firmware releases > are not supported by U-Boot? - This prospect is what makes your patch a > bit scary to me. That could happen, but I suppose especially for older releases. Newer releases tend to change in the direction of upstream.
> > Which different firmware releases did you test against? > > Do you plan to keep the existing defconfigs and dtbs? > I didn't do any extensive testing to be honest. We are using the DTB from the firmware on RPi4 already, and I expect that newer firmwares won't break U-Boot. My idea is to keep the existing defconfigs. Apart from being a good fallback option if really something breaks, there might be some distros use U-Boot with this config files and I don't want to break the setup for them. Regards, Matthias _______________________________________________ U-Boot mailing list [email protected] https://lists.denx.de/listinfo/u-boot
