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BFE EngineeringandClaude Fable 5 5155224594 public-readiness: scrub internal details, split licensing, hosted kernel-build

Preparing the repo to go public (ADR-0007):

- CI: kernel-build moves from the self-hosted runner to ubuntu-latest
  (installs its own cross toolchain + qemu, caches the pristine tarball).
  On a public repo a registered self-hosted runner is reachable from
  approved fork-PR workflows — i.e. arbitrary code on private
  infrastructure — and the build never actually needed the SDK host.
  ADR-0004 marked superseded-in-part; docs/ci-cd.md rewritten (site
  specifics now live only in the private deployment log).
- Licensing: LICENSE gains the GPL-2.0 carve-out for patches/ and the
  kernel source excerpts (Linux derivatives; per-driver provenance was
  already tracked in PROVENANCE.md); patches/README.md states it too.
- Scrubbed from the tip: bench-unit dev credentials and its gadget IP
  (m2-boot notes), the site AP SSID+BSSID and a neighboring AP's BSSID
  and the device WLAN MAC (wifi bring-up evidence — BSSIDs are
  geolocatable), the runner mesh IP. NOTE: these remain in git history;
  decision on a pre-publication history rewrite is separate.
- Emoji cleanup across 21 tracked files (kernel port docs, review report,
  enforce-mcdc.sh) per repo text conventions: status marks became
  [x]/[wip]/[ ]/OK plain text.
- "[maintainer]-gated" process phrasing normalized to "maintainer-gated"
  (attributions in dated evidence docs kept).

Verified: zero emojis tracked; scrub grep clean; patches carry no internal
references; ci.yml parses; shellcheck unchanged.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018HUayid7W5w7jBdb9Rrj1K

2026-08-30 07:25:57 -06:00

2.4 KiB

Raw Blame History

Overnight kernel-enablement run — results (2026-08-24 night → 08-25)

Goal ([maintainer]): port/enable every remaining RV1106 hardware capability on the self-built Linux 6.18.46, open-source-first, verify on hardware, so the display's last mile can start in the morning. Runs on warden-c8a3 (_b slot = our 6.18).

Verified on hardware this run

Driver	Evidence
AIC8800 wifi (M5)	wlan0 up, `iw scan` found the site AP at −43 dBm + others. Modules (built-in deadlocks the two-stage SDIO bring-up).
TRNG	`/dev/hwrng`, `rng_current=rockchip-rng`, real entropy.
OTP/nvmem	`rockchip-otp0` reads chip id ("MR1").
GMAC (wired eth)	`eth0: Link is Up - 100 Mbps/Full`.
SARADC	`iio:device0` reads 2 channels (adc-keys).
Audio	card `rv1106-acodec`, `/dev/snd/pcmC0D0p`+`pcmC0D0c`. Audible test → bench.

(These join the earlier-verified set: clk, pinctrl, GIC, timer, DMA, eMMC, uart×3, i2c, wdt, RTC, tsadc, RGA, USB host, PWM backlight. VOP display binds — connector is the morning task.)

Cross-cutting fixes made this run

XZ compression (CONFIG_KERNEL_XZ): the growing kernel overran U-Boot's DTB-at-0xc00000 load boundary (Sysmem Error, FLARE-AB fell to _a). zImage 12.1→8.3 MB, ~4 MB headroom. See kernel-618-btest-cycle memory + wifi doc.
Module vs built-in: wifi must be modules (SDIO two-stage bring-up races the mmc probe when built-in — sequential initcall deadlock). Audio/GMAC/etc. are built-in and fine.
Hardened the c8a3 _b-test → _a-recover cycle (compact-hex AVB serial write + readback while stable; Pi golden-env fallback for bootcount→loader).

Not done — deferred with reasons (see CAPABILITIES-AUDIT.md)

mailbox (binds via rk3368 fallback but no client to exercise), crypto-v3 (CPU crypto extensions already cover it; 100 KB port), NPU (no open userspace), pvtm (DVFS-only). Camera/ISP/SPI: no hardware. No unexplored capability gap.

Morning (needs [maintainer] at the bench)

Display connector — VOP binds + DRM card0 + panel probes, but no connector link yet; needs eyes on the panel (pixels can't be verified over serial).
Audible audio — speaker-test/aplay through the acodec.
Wifi boot-time auto-load (modules currently insmod'd by hand) — a loader that inserts aic8800_bsp→fdrv(→btlpm) from the rootfs.

Provenance: every ported driver is GPL-2.0 kernel source (PROVENANCE.md).

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