BFE EngineeringandClaude Fable 5
3d3b35459e
Kernel-side captures for the flare-edge warden-bootimprovements work, photon-verified on warden-c8a3: - rockchip_drm_vop.c vop_initial(): when U-Boot left the VOP scanning the boot logo (window enabled, not in standby), skip the AHB/dclk resets and window disables, and hold clocks + a runtime-PM reference until the first real vop_enable() drops them. The logo now survives the DRM bind; the only remaining blank is ~1.3s at the splash's own first modeset. KNOWN LOOSE END: a deferred-probe rebind runs the takeover twice and the first bind's held references are never dropped (a clk/PM leak that keeps the VOP domain on -- harmless for an always-on HMI, should be released in unbind eventually). - rv1106-warden.dts: /reserved-memory/drm-logo@0 placeholder that U-Boot's fdt fixup stamps with the logo framebuffer (observed: addr=0xdf00000 size=0x71000, kernel reserves it 'map non-reusable'); chosen bootargs drop earlyprintk (with earlycon it doubled every console line at 115200). - Kernel config switched KERNEL_XZ -> KERNEL_GZIP: post-'Starting kernel' silence 4.2s -> 0.8s; the zImage grows past the old 11.95MB cap, which flare-edge sdk-patches 0007 removes (fdt_addr_r 12M -> 128M). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014L3eBF6wBXC55uJoZuUfS6
RV1106 6.18 devicetree
rv1106-warden.dts: our board DT.#includes the vendorrv1106.dtsi(the full SoC: pinctrl, gpiox5, dmac, cru+grf_cru, uart, emmc, i2c, saradc, watchdog, usb, vop, npu, rga, ...), then enables only what the wall-HMI needs. No camera/ISP/CSI. Grows one driver batch at a time (see../DRIVER-PARITY.md).rv1106-warden-m2.dts: the earlier standalone minimal DT used to bring up M2/M3 before the full-SoC transplant; kept for reference.
Transplanting the vendor SoC DT onto 6.18 (recipe)
Copy into arch/arm/boot/dts/rockchip/ of the 6.18 tree:
rv1106.dtsi, rv1106-pinctrl.dtsi, rockchip-pinconf.dtsi. Copy the
vendor-only dt-bindings headers into include/dt-bindings/:
soc/rockchip-system-status.h, suspend/rockchip-rv1106.h,
display/media-bus-format.h, and overwrite soc/rockchip,boot-mode.h
with the vendor's (it has extra BOOT_CHARGING/UMS/PANIC/WATCHDOG constants the
DT uses). Then the two hardware deltas:
- Delete the
pscinode fromrv1106.dtsi. RV1106 has no secure monitor in our boot chain, soarm,psci-1.0+method="smc"makes the SMC call fault ->Oops - bad mode->Attempted to kill the idle task. (Confirmed on c8a3.) - Enable the peripherals in the board DTS (
&uart2,&emmc, ...).
Verified on warden-c8a3: pinctrl, gpio0-4, pl330 DMA, uart1/2/4, i2c3, dw-wdt all probe; full WardenOS userspace boots.