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No rationale was given for the 512-byte > >choice; every subsequent FSL_LSCH2 and FSL_LSCH3 common header > >(ls1043a, ls1046a, ls1088a, lx2160a, ...) inherited it by convention. > > > >When CONFIG_SYS_CBSIZE was moved to Kconfig in commit d31466b382dd > >("Convert CONFIG_SYS_CBSIZE to Kconfig"), the existing 512-byte values > >were transcribed mechanically into Kconfig defaults, cementing the > >limit without re-examining its validity. > > > >The practical consequence is that environment variables holding > >multi-step boot scripts are silently truncated at 510 usable characters > >on all Layerscape boards, making it impossible to store commands such > >as combined TFTP+flash sequences in a single variable. > > > >The same problem was already identified and fixed for i.MX6 and i.MX7 > >in commit f7b237b81e5a ("MLK-24380 imx6: Enlarge the console I/O buffer > nit: > > This is a downstream commit. > > Regards > Peng Correct, I failed to update the commit message when rebasing. Would you prefer replacing the commit sha1sum reference with just "downstream", or just remove the justification altogether?