ci: gate publish on u-boot fitting 256 KiB boot partition - #11
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Mirrors OpenIPC/firmware's CHECK_SIZE pattern (Makefile:155) for kernel/rootfs. mtdparts in include/configs/gk-common.h declares 256k(boot) across every NOR/NAND/UBI variant; if u-boot grows past that it overflows into env at offset 0x40000 and bricks devices on upgrade. Hard-fail at build time so an oversized binary never reaches firmware/latest. All current binaries fit well under (~120-247 KiB), so this lands as a preventive guard. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
Adds a
Check partition fitstep to the build job that fails CIif
u-boot-<soc>-universal.binexceeds 256 KiB — the size ofthe
(boot)partition declared ininclude/configs/gk-common.hacross every NOR/NAND/UBI mtdparts variant.
Mirrors
OpenIPC/firmware/MakefileCHECK_SIZEmacro (lines155–161) which already gates kernel/rootfs sizes against per-SoC
flash limits. Without this, a future feature merge could push
u-boot past 256 KiB, the publish job would happily upload it, and
the next user upgrade would overflow into env at offset 0x40000
and brick the device.
All current binaries fit well under the limit — this lands as
a preventive guard.
Test plan
Check partition fitstep runs green on every matrixentry with output like
- u-boot-<soc>-universal.bin: [<size>KB/256KB].🤖 Generated with Claude Code