BFE Engineering
42fb386f60
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.
27 lines
1.4 KiB
Markdown
27 lines
1.4 KiB
Markdown
# RV1106 6.18 devicetree
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- **`rv1106-warden.dts`**: our board DT. `#include`s the vendor `rv1106.dtsi`
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(the full SoC: pinctrl, gpiox5, dmac, cru+grf_cru, uart, emmc, i2c, saradc,
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watchdog, usb, vop, npu, rga, ...), then enables only what the wall-HMI needs.
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No camera/ISP/CSI. Grows one driver batch at a time (see `../DRIVER-PARITY.md`).
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- **`rv1106-warden-m2.dts`**: the earlier standalone minimal DT used to bring up
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M2/M3 before the full-SoC transplant; kept for reference.
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## Transplanting the vendor SoC DT onto 6.18 (recipe)
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Copy into `arch/arm/boot/dts/rockchip/` of the 6.18 tree:
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`rv1106.dtsi`, `rv1106-pinctrl.dtsi`, `rockchip-pinconf.dtsi`. Copy the
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vendor-only dt-bindings headers into `include/dt-bindings/`:
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`soc/rockchip-system-status.h`, `suspend/rockchip-rv1106.h`,
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`display/media-bus-format.h`, and **overwrite** `soc/rockchip,boot-mode.h`
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with the vendor's (it has extra BOOT_CHARGING/UMS/PANIC/WATCHDOG constants the
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DT uses). Then the two hardware deltas:
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1. **Delete the `psci` node** from `rv1106.dtsi`. RV1106 has no secure monitor in
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our boot chain, so `arm,psci-1.0` + `method="smc"` makes the SMC call fault ->
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`Oops - bad mode` -> `Attempted to kill the idle task`. (Confirmed on c8a3.)
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2. Enable the peripherals in the board DTS (`&uart2`, `&emmc`, ...).
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Verified on warden-c8a3: pinctrl, gpio0-4, pl330 DMA, uart1/2/4, i2c3, dw-wdt all
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probe; full WardenOS userspace boots.
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