BFE EngineeringandClaude Opus 4.8
7e76553bd7
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
15 lines
763 B
Bash
Executable File
15 lines
763 B
Bash
Executable File
#!/bin/sh
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# Prove the A7<->HPMCU mailbox round-trip on channel 0. Write A2B_CMD first, then
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# A2B_DAT — the A2B_DAT write is the doorbell (raises A2B_STATUS on the MCU side,
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# whose echo firmware has enabled A2B_INTEN), so both CMD and DAT are current when
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# the SCR1 reads them. The SCR1 echoes {cmd,dat} verbatim into B2A_CMD/B2A_DAT.
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CMD=${1:-0x00001234}
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DAT=${2:-0xcafef00d}
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echo "liveness: DBG_STATE=$(devmem 0xff6fff08 32) (want 0x584F424D 'MBOX') echoes_before=$(devmem 0xff6fff10 32)"
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devmem 0xff5c0008 32 "$CMD" # A2B_CMD(0)
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devmem 0xff5c000c 32 "$DAT" # A2B_DAT(0) -- doorbell
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sleep 1
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echo "sent CMD=$CMD DAT=$DAT"
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echo "echoed B2A_CMD=$(devmem 0xff5c0030 32) B2A_DAT=$(devmem 0xff5c0034 32)"
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echo "echoes_after=$(devmem 0xff6fff10 32)"
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