Re: [PATCH v4] arm64: dts: mediatek: mt7988a-bananapi-bpi-r4: add ramoops region

[AngeloGioacchino Del Regno]

On Tue, 15 Sep 2026 13:57:22 +0200, Martino Dell'Ambrogio wrote:
> Reserve 1 MiB of RAM just below the ARM Trusted Firmware secmon region
> (0x42f00000-0x43000000) for persistent kernel log storage via pstore/ramoops,
> allowing post-panic console output and oops dumps to be recovered after a
> reboot. Without it, kernel crash logs on this board are lost when the SoC
> warm-resets and the on-chip console buffer is reinitialised.
> 
> With record-size=128 KiB, console-size=256 KiB, ftrace-size=64 KiB and
> pmsg-size=64 KiB, ramoops_probe() carves the post-console remainder
> (640 KiB) into five 128 KiB kmsg records, with the requested ecc-size=16
> reserving a small Reed-Solomon parity block from each zone's own
> allocation (per persistent_ram_new()). The ECC lets pstore recover dumps
> even when the panic path truncates writes mid-record.
> 
> [...]

Applied to v7.3-next/dts64, thanks!

[1/1] arm64: dts: mediatek: mt7988a-bananapi-bpi-r4: add ramoops region
      commit: b71dd71f0965358d33a4c5c93789e46795f0f49d

Cheers,
Angelo