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kernel/rv1106: M5 wifi VERIFIED on c8a3 — wlan0 scan works (module build)

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On-hardware proof (self-built 6.18.46, _b slot): aic8800 modules load,
download firmware, wlan0 up ([device-mac]), iw scan finds real APs
incl. SSID BlueFlare @ -43dBm. RF path fully functional. See
wifi/VERIFIED-on-c8a3.md.

Two changes from the initial built-in attempt:
- Built-in =y DEADLOCKS: aicbsp_init's eager SDIO bring-up (device_initcall,
  sequential) blocks the dw_mmc controller probe that would enumerate the
  card it waits for (aicsdio.c:597 2s down_timeout -> unregister). Converted
  to modules (=m): AIC_WLAN_SUPPORT bool->tristate; loaded late, after the
  mmc-pwrseq enumerates the card — the vendor-proven flow.
- Restored fdrv's own md5.o (each .ko needs its own MD5; bsp doesn't export
  it). Refreshed kbuild snapshot accordingly.

Kernel-size fix (CONFIG_KERNEL_GZIP -> XZ): the wifi kernel's 12.12MB gzip
zImage overran U-Boot's DTB-at-0xc00000 load boundary (Sysmem Error, FLARE-AB
fell back to _a). XZ -> 8.15MB, ~4MB headroom; also correct for a firmware
kernel. Uncompressed Image ~30MB but the ARM decompressor relocates the FDT
at runtime, so only the U-Boot load-time overlap mattered.

DRIVER-PARITY: wifi ✅ M5; BT 🔨 (module built, HCI not yet exercised).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
This commit is contained in:
BFE Engineering
2026-08-25 00:34:25 -06:00
co-authored by Claude Opus 4.8
parent 6897c9f93e
commit 92905bf4d4
4 changed files with 66 additions and 13 deletions
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kernel/rv1106-enablement/DRIVER-PARITY.md
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@@ -33,8 +33,8 @@ c8a3, not just compiled.
| RGB666 720×720 panel | — | panel-dpi | 🔨 probes; bus_format + connector WIP |
| GT911 touch (goodix) | goodix, gt911 | mainline | ⬜ M4 (needs GPIO_SYSFS ✅ + node) |
| GPIO_SYSFS / crypto / CFG80211 | — | mainline (config) | ✅ =y (batch2) |
| AIC8800 wifi (bsp/fdrv) | aic8800_* | **out-of-tree** | ⬜ M5 |
| AIC8800 BT (btlpm) | aic8800_btlpm | **out-of-tree** | ⬜ M5 |
| AIC8800 wifi (bsp/fdrv) | aic8800_* | **out-of-tree** | ✅ M5 — wlan0 up, scanned the site AP at −43dBm (modules, `wifi/VERIFIED-on-c8a3.md`) |
| AIC8800 BT (btlpm) | aic8800_btlpm | **out-of-tree** | 🔨 module built (6.18 vermagic); HCI bring-up not yet exercised |
| NPU (rknpu, ff660000) | rknpu, ff660000.npu | **out-of-tree** | ⬜ M6 — plan: `npu/PORT-PLAN.md` |
| RGA 2D (rga2) | rga2 | ported (vendor char-dev) | ✅ /dev/rga, hw 3.3.87975 |
| I2S audio (i2s-tdm) | i2s | rv1126 fallback | 🔨 DAI built; needs acodec+card |