Tried extcon = <&u2phy> for 5.10 parity (2026-09-01) and reverted the same
day: bench/router panels self-source VBUS on the OTG port, so bvalid is
always high and extcon locks the role to peripheral, overriding debugfs mode
writes and orphaning a plugged USB NIC. Role stays manual (dwc3 debugfs mode,
router=host / client=gadget), with the switch sequence living in flare-edge
S26usbhost. See the usb2phy power-on issue for the remaining probe-time gap.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014L3eBF6wBXC55uJoZuUfS6
Replace every em dash with real punctuation (rewrites, not hyphen swaps)
in docs, code comments, scripts, configs, and the port records; convert
en dashes, curly quotes, ellipsis glyphs, arrows, and section signs to
ASCII; drop machine-writing tell phrases from living docs. ADR titles
now use a colon. The M2 bring-up DTS model string carried an em dash
into the patch series and its record echoes; fixed at both, and the full
series re-verified to apply cleanly onto pristine 6.18.46. One comment
in freshness.h deliberately names the em dash glyph the UI renders as
the unknown mark; that is data, kept as prose naming it.
Verified: cargo tests (sim, config-lint, rs485-bridge), shellcheck,
both driver MC/DC harnesses, patches-apply.
The qemu/ device sim answered the first question off-board: the same
kernel family under -M virt gives musl vDSO rate ratio 0.99963 — the
generic 6.18 armv7 vDSO is correct, so the board symptom is RV1106
register state (CNTFRQ/CNTVOFF, firmware-owned, secure-world boot chain).
- qemu/tests/clockprobe: interval-based musl probe separating RATE error
(CNTFRQ) from boot OFFSET (CNTVOFF) — the original single absolute
sample cannot distinguish them.
- qemu/tests/clock-sanity.sh: VM regression guard asserting the vDSO rate
within 1% (PASSES: 1.00026); cross-builds the probe and stages it as
payload itself.
- kernel/rv1106-enablement/timer/PLAN.md: the DT fix
(arm,cpu-registers-not-fw-configured + measured clock-frequency on the
board dts) gated on the two bench measurements; c8a3 is currently
physically dark, needs hands at the bench.
- clockprobe joins the CI test loop.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018HUayid7W5w7jBdb9Rrj1K
- build-kernel.sh fragment assertion: survives a missing trailing newline
(the read footgun, reproduced) and treats an absent symbol on a disable
line as FATAL, symmetric with the enable arm.
- fetch-kernel-tarball.sh checks the pin before downloading; both fetchers
add --retry-connrefused.
- mkimage rejects '.'/'..' state keys.
- ui-shot: VM liveness checked before every QMP call, console.log preserved
as evidence on every failure path, repaint deadline widened to 90s with
the contended-runner rationale documented.
- rs485-bridge: overflow discards back off one gap and rate-limit their log
line, mirroring the accept-loop fix; clippy nit fixed.
- .gitignore ignores *.elf/*.map so the untracked artifacts cannot silently
return; CI shellcheck glob now covers build/ and the rootfs boot scripts
(directives added for the deliberate in-guest source paths).
- Docs: NPU parity row matches its sibling verification docs; line-pinned
audit cross-references unpinned; CROSS_COMPILE documented in the build
header; payload README lists warden-ui; ci-cd tense settled.
Verified: guards negative-tested (bad state keys, no-newline fragment);
boot smoke, portal scenario, ui-shot all PASS; 53 tests green; shellcheck
clean across the widened glob; clippy zero.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018HUayid7W5w7jBdb9Rrj1K
CI/pipeline:
- KERNEL_TARBALL passed as a YAML env literal '~' was never tilde-expanded
and would have failed every hosted kernel-build dispatch; the path is now
exported from the shell. Verified reproducible before the fix.
- Every job gets timeout-minutes; boot smoke uses timeout -k so a wedged
qemu is SIGKILLed instead of holding the job.
- Tarball fetch + fail-closed sha256 verification deduplicated into
build/fetch-kernel-tarball.sh (with curl retries), used by build-kernel.sh
and both CI jobs. busybox fetch gains retries too.
- ccache layer for kernel-build (cache keyed on defconfig+patches) recovers
the incremental-compile speed the ephemeral-runner move cost.
- build-kernel.sh now asserts every fragment option survived olddefconfig —
merge_config -m pastes text and Kconfig silently drops unmet symbols.
rs485-bridge:
- pending-buffer cap (2x max RTU ADU) instead of unbounded growth;
explicit accept-loop error handling with backoff instead of .flatten();
per-arm inline bounds instead of the string-keyed lookup whose default
would have mis-bounded a future get-input; control-socket cleanup errors
surfaced; flag-shaped values rejected in arg parsing; doc example uses a
private mktemp dir. Test timing margins widened for contended runners
(gap 25->120ms, 60x margin on the split-frame test).
VM harness:
- stage-1/stage-2 boot scripts share one validated slot parser and one
by-name populator (qemu/rootfs/etc/warden-lib.sh) — the duplicated
parser had already diverged on validation; userdata/oem mount failures
now fail fast with a greppable sentinel; udhcpc fallback keys off the
interface actually having an address; switch_root applet guarded.
- boot-smoke delegates the qemu invocation to run.sh (machine shape lives
in ONE place); run.sh port 0 disables a hostfwd.
- mkimage: unknown partition names fail at build time; DISK_END is a max,
not last-entry; --state keys validated as filenames.
- portal-scenario: mock readiness is asserted (no silent fall-through),
hostfwd port collisions retried, mount-failure sentinel fails fast.
- ui-shot: fixed sleeps replaced with bounded screendump polling; the
repaint assertion is real and documented as such. qmp.py loses its
module-global and gains argv validation.
Docs/scrub: bench-host paths and the site AP name removed from six more
port docs and two evidence tables; path-bearing build artifacts (.elf,
.map) untracked (the 154-byte firmware .bin is path-free and stays);
ADR-0003 marked visibility-superseded by ADR-0007; stale section
cross-reference fixed; flare-edge noted as private for outside readers;
stale root-level review report removed per the new workspace rule.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018HUayid7W5w7jBdb9Rrj1K
Decision/directive lines keep their dates and content, drop the name;
hands-on confirmations become "confirmed by hand at the panel"; a dangling
CLAUDE.md reference becomes "repo policy". Upstream vendor author
attributions in the GPL kernel sources (MODULE_AUTHOR, copyright headers,
LKML citations) are third-party legal attributions and stay.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018HUayid7W5w7jBdb9Rrj1K
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
The .c/.dts/.frag files here are a point-in-time port-provenance snapshot (with
standalone test programs + instructional fragments the narrative docs reference),
not a maintained second copy of the kernel delta. Add a prominent canonical-source
note so the snapshots (which can lag the final series, e.g. the clk CLK_IGNORE_UNUSED
fix) are never mistaken for current code. patches/ + build/build-kernel.sh remain the
single source of truth.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
mailbox + NPU + pvtm all now show VERIFIED with accurate notes (the prior
reason cells still said 'unexercised'/'no userspace'/'deferred'). Only
crypto-accel (CPU crypto covers) and open-NPU-compute (person-year RE) remain,
both documented.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
MAILBOX (fully open A7<->RISC-V SCR1 round-trip, 5/5 exact echoes on c8a3):
- rockchip-mailbox.c: rv1106 has 1 shared IRQ, not 4/channel -> added
rv1106_drv_data{num_chans=1} + compatible (rk3368 fallback assumed 4 -> probe
failed 'IRQ index 1 not found').
- clk-rv1106.c: CLK_CORE_MCU (SCR1 core clock) marked CLK_IGNORE_UNUSED -
6.18's clk_disable_unused() was switching off the coprocessor clock so a
loaded firmware never ran (5.10 left it on).
- Open SCR1 echo firmware (scr1-echo/, 154B RV32IMC) + load/test scripts;
A2B_INTEN on the MCU side + CMD-then-DAT (DAT=doorbell) order. Loaded via the
proven hpmcu.rs SRAM path; do NOT kill warden-flared (dw-wdt). mailbox/VERIFIED.md.
NPU (open GPL rknpu 0.9.2 kernel driver on 6.18):
- DT fix: base npu node lacks interrupt-names, driver requests IRQ byname
'npu_irq' -> probe bailed -ENXIO. Added interrupt-names='npu_irq'.
- Verified: [drm] Initialized rknpu 0.9.2 on minor 1; /dev/dri/card1;
rknpu_version_test PASS (0.9.2 + hw version, full power/clock/reset path).
- Honest ceiling: open compute (regcmd compiler) is a from-scratch ~person-year
RE project, no RV1106 prior art; ship the driver, no blob. npu/VERIFIED.md.
DRIVER-PARITY + CAPABILITIES-AUDIT updated; dts snapshot refreshed.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
Six drivers verified on hardware this run (wifi, TRNG, OTP, GMAC, SARADC,
audio). Final honest ledger: mailbox (fallback-binds, no client), crypto-v3
(CPU crypto covers), NPU (no open userspace), pvtm (DVFS-only) all deferred
with reasons — no unexplored capability gap. Morning bench tasks documented
(display connector, audible audio, wifi boot-time auto-load).
OVERNIGHT-RESULTS.md added.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
Ported rv1106_codec.c (acodec) + rk_dsm.c (built, dsm disabled — panel uses
acodec) into 6.18 (6 ASoC API-delta fixes: gpiod, volsw unify, DAIFMT CBC/CBP
rename, remove->void, header swaps). simple-audio-card 'rv1106-acodec'.
Fixed the subagent's gap: cpu DAI SND_SOC_ROCKCHIP_I2S_TDM was left =m (module,
never loaded on bare _b boot) so the card stuck in 'asoc-simple-card: parse
error' deferred probe. Set it + SND_SOC_ROCKCHIP =y.
✅ VERIFIED on c8a3: /proc/asound/cards shows rv1106-acodec; aplay -l shows
card 0 device 0 ffae0000.i2s-rv1106-hifi; /dev/snd has pcmC0D0p + pcmC0D0c.
Audible speaker test deferred to the bench (with display).
Six drivers verified this run: wifi, TRNG, OTP, GMAC, SARADC, audio.
audio/PORT-PROGRESS.md; DRIVER-PARITY updated; dts snapshot refreshed.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
The saradc -22 was regulator_get_voltage on a dummy vref (no vref-supply in
DT), not the clk divider. Added vcc_1v8 fixed 1.8V regulator + vref-supply
(matching the vendor 86-panel). iio:device0 now reads both channels
(in_voltage0_raw=1023, in_voltage1_raw=246) — the adc-keys path works.
Five drivers verified this run: wifi, TRNG, OTP, GMAC, SARADC.
adc/SARADC-FIX.md; DRIVER-PARITY updated.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
GMAC ✅ eth0 Link Up 100Mbps/Full on c8a3: ported rv1106_ops into mainline
dwmac-rk.c (VOGRF RMII mode/speed + integrated FEPHY powerup via CON0;
mainline set_speed/powerup split; bandgap trim omitted — analog opt the PHY
runs without). &gmac enabled; uses the internal ethernet-phy@2. gmac/PORT-DONE.md.
OTP ✅ now reads real data (px30_otp_read): 5211 02fe 084d 5231 ('MR1' chip id),
no timeout. rng-otp/PORT-DONE.md updated.
Batch A + GMAC complete — TRNG, OTP, GMAC all verified on hardware.
DRIVER-PARITY updated.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
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
Capabilities audit — classify every RV1106 SoC block against a 6.18 driver:
GMAC (wired eth, enabled on-board), crypto-v3, trngv1 (hw RNG), OTP, mailbox,
NPU, audio codec/DSM, pvtm still to port; camera/ISP + SPI are N/A (no HW).
Provenance ledger — per [maintainer]'s openness directive extended to already-ported
drivers: every ported driver is GPL-2.0 kernel source (vendor-src or
mainline-sibling); the only binary in the whole path is on-device wifi-chip
firmware, which by construction cannot be host source. No vendor binary is
loaded into our kernel.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
RTC: ported the vendor rockchip,rv1106-rtc driver (rtc-rockchip.c) to 6.18 — one
API delta (rtc_register_device -> devm_rtc_register_device). Verified on
warden-c8a3: /dev/rtc0 registers and reads.
tsadc thermal: ported the rv1106 data + rk_tsadcv9_initialize + the TSADCV9/VOGRF
macros + code table from the vendor; adapted .chn_id[SENSOR_CPU] -> .chn_offset
for 6.18. Verified: thermal_zone0 "soc-thermal" reads 39.8 C.
i2s-tdm: rv1126 fallback compatible added (DAI builds; sound card needs the acodec
port next). saradc still -22 (clk-rv1106 SARADC divider — deferred).
Includes the NPU + RGA open-source port plans (research): rknpu kernel driver is a
small port (RV1106 config already in the vendor driver; 4 dead-code headers need
compat stubs) but no open userspace exists for this NPU gen; RGA = port the vendor
char-dev rga3 driver (WardenOS's librga uses /dev/rga, not V4L2), + a cma pool +
hrtimer_setup. All ports are open source (vendor C source / mainline siblings).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
The brief: port/enable every remaining RV1106 hardware capability on 6.18,
open-source-first (source we own + can harden, never blobs), new drivers if
needed, zero capabilities left on the table. Priority: AIC8800 wifi/BT, RGA,
rknpu, RTC, tsadc, i2s, saradc-fix, eth0-gadget, then a full capabilities audit.
Display deferred to tomorrow (needs eyes on the panel). Pipelined: research
subagents ∥ port/build/verify on c8a3; krecover-hardened for resilience.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
usb2phy: ported the RV1106 inno-usb2 phy config to 6.18 (rv1106_usb2phy_cfg;
fields map 1:1 except utmi_iddig->utmi_id and chg_mode->opmode; 5.10-only
iddig_output/en/bvalid_grf_sel dropped; phy_tuning left off, guarded so safe).
With PHY_ROCKCHIP_INNO_USB2=y + the u2phy/usbdrd/dwc3 DT enabled, verified on
warden-c8a3: the DWC3 comes up as xhci-hcd @ 0xffb00000 — USB host works. eth0
gadget just needs dr_mode=peripheral.
saradc: added rv1106_saradc_data (2-ch v2, matches the vendor) + the native
compatible. Driver now matches; probe still returns -22 (a clk-rate/setup detail,
not the data) — TODO.
Also captured: the growing board dts (USB nodes), the port fragments under usb/
and adc/. DRIVER-PARITY.md updated: ~14 drivers now at parity on 6.18.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
The RV1106 VOP is the RV-series "lite" VOP (rockchip,rv1106-vop, VOP_VERSION 2.0xc),
mainline's VOP1 driver. Its sibling rv1126 is already in 6.18, so rv1106_vop reuses
rv1126's register sub-structs + VOP_FEATURE_INTERNAL_RGB + the smaller raster.
Verified on warden-c8a3: with the driver delta + DT (vop enabled with named
"ahb"/"dclk" resets, vop_out repointed to a panel-dpi 720x720 node, pwm-backlight
on pwm1), the VOP BINDS and DRM initialises (/dev/dri/card0), and the PWM backlight
comes up. The register data / version / feature / resets are validated.
Open: /sys/class/drm/card0 has no connector yet — rockchip_rgb_init isn't producing
one ("Cannot find any crtc"). Last mile of M4; needs a debug print in rgb_init + the
panel bus_format, and the pixels must be verified on the physical panel (can't be
checked over serial/ssh). Full recipe + next steps in display/README.md.
Also batch-2 config: GPIO_SYSFS, PWM_ROCKCHIP, crypto (aes/ccm/ctr/arc4), CFG80211,
DRM_ROCKCHIP/ROCKCHIP_VOP all =y; PSCI-style SMC removed via the psci-node deletion.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
Move from the hand-built minimal DT to the vendor rv1106.dtsi (full SoC:
pinctrl, gpio×5, dmac, cru+grf_cru, all peripherals), with our lean board DTS
(rv1106-warden.dts) enabling only the wall-HMI's needs — no camera/ISP/CSI.
Two deltas made it boot on 6.18: overwrite boot-mode.h with the vendor's (extra
BOOT_* constants) and DELETE the psci node (no secure monitor → SMC fault →
"Attempted to kill the idle task"). Recipe in dts/README.md.
Verified on warden-c8a3 (uname 6.18.46, full WardenOS userspace): pinctrl,
gpio0-4, pl330 DMA, uart1/2/4 (ttyS1/2/4), i2c3, dw-wdt (watchdog0) all probe.
DRIVER-PARITY.md tracks the remaining ports (VOP display, AIC8800 wifi, rknpu,
usb2phy, saradc-compat, RGA) toward full parity with the 5.10 kernel.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
Adding the eMMC dw_mmc node (mmc@ffa90000, clocks from cru + grf_cru) was all M3
needed. On warden-c8a3 the 6.18 kernel enumerates the eMMC at HS200
(mmcblk0 8GTF4R 7.28 GiB), mounts the ext4 rootfs, runs /sbin/init, and starts
every WardenOS daemon. Serial root login confirms:
Linux warden-c8a3 6.18.46 armv7l
ps: warden-flared warden-modbus warden-mikrotik warden-asic warden-ui warden-flight
Expected M4/M5 gaps are clean failures: the 5.10 aic8800 wifi/BT .ko won't load on
6.18 (vermagic), and no backlight/framebuffer yet (no VOP node). Next: M4 display,
M5 AIC8800 SDIO port, M6 the rest; plus a lean defconfig + Buildroot-on-6.18.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
The Linux 6.18.46 forward-port boots on the panel through our ported drivers,
verified on the serial console: earlycon, arch timer (BogoMIPS calibrated), our
clk-rv1106 CRU, pinctrl, and the mainline 8250 bound to uart2 clocked by our CRU
(ttyS2 16550A), then rootfs mount.
Two DT fixes got it past "Starting kernel":
- fdt placed high (load=0x08000000) so the bloated multi_v7 zImage (~20 MiB
decompressed) stops overrunning the DTB at 0xc00000 (was: r2=0, "invalid dtb").
- added the rockchip,rv1106-grf-cru node (grf-clock-controller child of grf) so
clk-rv1106's grf_ctx isn't NULL (was: panic in rockchip_clk_register_branches).
Console pinned to 115200 (readable on the CP2102 bench adapter; prod uses 1.5M).
The boot-image format and the A/B _b-slot safe-test method (which auto-reverted to
_a on every failed attempt) are in docs/m2-boot-on-c8a3.md. M3 next: lean defconfig
+ dw_mmc DT + our Buildroot userspace rebuilt on 6.18.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
M1 is complete (clk + pinctrl + mach compile clean); this reaches M2's build
milestone. multi_v7_defconfig + configs/m2-earlycon.fragment builds an 11.8 MB
zImage with clk-rv1106.o and pinctrl-rockchip.o (our rv1106 data) compiled into
the full tree — no rv1106 warnings. dts/rv1106-warden-m2.dts (CPU, GIC-400, arch
timer, 256 MiB RAM, GRF, the CRU, uart2 as snps,dw-apb-uart) compiles clean at
W=1 with earlycon=uart8250,mmio32,0xff4c0000. Reproducible via build-m2.sh.
Boot is the next step and is on-hardware/attended: package zImage + dtb, load on
a bench unit with a recovery net, watch for the earlycon "it's alive". PORT-VERIFY
before trusting a boot: DDR size/base, the CPU clock mux, console baud.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
2-line DT-compat add to rockchip_board_dt_compat[] (rv1103 + rv1106), per the
breadth survey. Did NOT recreate the dropped CPU_RV1106 symbol (mainline IDs the
SoC purely via DT compat at runtime). clk + pinctrl + mach = the 3 core compile
components; DT + defconfig + full build remain for M2 (console boot).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
M1 pinctrl ported from vendor 5.10 (effort S, no API drift): enum, DRV/PULL/SMT
macros + 3 calc fns, case RV1106 in the 3 pull fns + RK3568 drive group, pin_banks
+ pin_ctrl, of_device_id (dropped CPU_RV1106 guard). pinctrl-rockchip.o 173KB, no
errors. iomux DRV/PULL/SMT offsets cross-validated against the upstream Simon Glass
v3 patch (match with the 0x10000 per-bank IOC base) -> the boot-critical iomux
PORT-VERIFY is retired via a 3rd independent source, no hardware. Upstream tracked
as a correctness oracle (doesn't apply to 6.18 cleanly; unmerged).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
Per [maintainer]: forward-port the RV1106 SoC enablement from the vendor 5.10 tree to
6.18 LTS ourselves (no plan44), on our Buildroot. Verified mainline has ZERO
RV1106 support, so this is a whole-BSP port. docs/bringup.md = the console-first
milestone plan + method (sibling-delta from rv1126/rv1108, which exist in both
trees). M1 (clk driver) underway: gcc-8.3 builds 6.18; wired CLK_RV1106; ported
55 CRU macros + the panic_notifier header split + the armclk signature change
(flagged PORT-VERIFY for the CPU-mux, TRM-check needed). Captured in
rv1106-enablement/. Honest: first of ~120 files; multi-month effort.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
