On Mon, 17 Jun 2019, Alistair Francis wrote: > > The legacy M-mode U-boot handles the phy reset already, and I’ve been > > able to load upstream S-mode uboot as a payload via TFTP, and then > > load and boot a 4.19 kernel. > > > > It would be nice to get this all working with 5.x, however there are > > still > > several missing pieces to really have it work well. > > Let me know what is still missing/doesn't work and I can add it. At the > moment the only known issue I know of is a missing SD card driver in U- > Boot. The DT data has changed between the non-upstream data that people developed against previously, vs. the DT data that just went upstream here: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=72296bde4f4207566872ee355950a59cbc29f852 and https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c35f1b87fc595807ff15d2834d241f9771497205 So Upstream U-Boot is going to need several patches to get things working again. Clock identifiers and Ethernet are two known areas. - Paul