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Add the RK3576 chip layer used by contest2026_290_dairoot on KickPi K7: boot and memory mappings, UART5, RPMsg/OpenAMP remote transport, and PDM/SAI microphone capture. Keep the GICv2 distributor under Linux ownership through the optional ARM64_GIC_SLAVE configuration. Includes the six published nuttx-side patches, including the IOC pull encoding correction and PDM clock/pinmux reassertion on capture start. The resulting source tree is unchanged from the development branch. Signed-off-by: dairoot <623815825@qq.com>
Correct source paths in file headers, add standard section headings, wrap long comments and expand resource-table reserved initializers. Preserve all C tokens and runtime behavior. Signed-off-by: dairoot <623815825@qq.com>
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Summary
Add the RK3576 chip support required by contest2026_290_dairoot on KickPi K7. openvela runs on Cortex-A53 cpu3 alongside a seven-core Linux host. This submits the project's six existing
nuttx-sidepatches to the public repository'sdev-ai-contest-2026branch.CONFIG_ARM64_GIC_SLAVEsupport so Linux retains ownership of the GICv2 distributor.Impact
The new chip is selected explicitly;
ARM64_GIC_SLAVEdefaults to off. Existing GIC initialization remains unchanged when this option is disabled. The AMP setup requires the matching Linux reserved-memory, interrupt-routing and peripheral-ownership configuration. Capture polls the FIFO because Linux owns the DMA controllers.Board configuration, Linux integration and build instructions are in the competition board README. Published firmware is available in the competition Release. Board/vendor code remains in the dedicated competition repository.
Testing
dd92bcf425738734d1b8aed09c2bd4dbe3f2e438. Before style cleanup, the resulting tree exactly matched the development server:e6e03a51cda52ee58a00dbbe97ad6fb9feac8544.git diff --checkpassed.tools/checkpatch.sh -g upstream/dev-ai-contest-2026..HEADpassed locally on macOS withcmake-formatavailable.