Hi there, I'm working on certain feature to be added to ONIE that is running on Broadcom's Helix4 -based network switch. Part of the task is to add FIT signature signing to U-boot versions supported by ONIE. ONIE as part of the build process uses uboot snapshots, and applies platform patches on top of it.
The list of U-boot snapshots to pick from is as follows: 2012.10, 2013.01.01, 2015.10, 2018.03 My platform by default, uses the oldest, 2012.10 and this version does not support FIT signatures. I was thinking how to address that, and came up with two solutions, neither being better (in my mind): 1) Create patch set based on the difference between more recent U-boot versions and 2012 that would be focused around fit image signatures, 2) Pick 2018.03 as code base. Problems I see: Ad 1) I can't find any repository that would contain commits from that far away history-wise. Did U-boot project even use any public repository in 2012 ? General problem here is how to prepare patchset, Ad 2) The problem is that platform code patches don't apply on more recent U-boot versions. Some of the files no longer exist, some code has been refactored, etc. Could you guys offer me any sort of advise on how to approach this ? Best regards
