[Acelogic]

J873 boots from aurora-wip without exposing its N1 radio. Add the T8152 PCIe reference-clock/PIPE-reset sequence and describe APCIE port 0, GPIO reset, MSI allocation and per-function DART streams in the existing J873 RAM-boot tree. The existing CPU park and RAM handoff remain in place.

The PCIe sequence adapts Thomas Glanzmann’s public linux-aurora commit d85dcbe23a28aa6db3629140510a64b2b046c2df, preserving authorship. Device-tree resources were checked against the physical J873g ADT. This depends on #998 for the native N1 Wi-Fi/Bluetooth drivers, including its AP-switching fix. It does not import the APIF driver from #828.

The previous merge hold is resolved by the tested #998 disconnect-budget fix. The native firmware starts, all three PCI functions appear, and Control/Alpha each receive 16 MSI vectors. Prior targeted validation of the three binding schemas and board DT passed; this revision adds no further device-tree changes.

Validation of the combined public-base + #998 + #1013 source tree on physical J813 and J873, using fresh guarded RAM boots:

• Kernel, 190 modules and both board DTBs built; 185/185 existing host-suite jobs passed locally. No hosted check run was available for this revision, so this is not a hosted-CI result.
• 16 AP changes on a TP-Link Deco mesh, including four cross-AP cases per board and shared-AP controls: 240/240 ping replies, immediate first replies, and 32 SHA-256-verified 8 MiB transfers. Wi-Fi power saving remained enabled.
• Ten-minute simultaneous bidirectional TCP: 30.00/30.00 Mbit/s received at a configured 30 Mbit/s cap, with concurrent Bluetooth LE discovery for 15 seconds per board. These are capped smoke tests, not peak-throughput measurements.
• J813 passes 16/16 initial GPU/health checks; J873 passes 23/23. Both repeat the GPU smoke after the radio soak with 12,288 exact pixels each, no kernel taint and no recorded kernel crash.

Earlier failed trials and packet captures are retained privately. Isolated packet loss also occurred without an AP change during control testing; this result qualifies the reproduced handoff stall, not loss-free RF operation. Bluetooth pairing/ACL/audio, suspend/resume and installed-rootfs stability remain outside this qualification. No firmware or internal-disk installation was performed.

Private firmware remains locally extracted and is not included. The full combined tree exactly matches the tree used for the hardware build; PMU guards, payload readback and CPU-park checks remain intact.

Attribution

• Original T8152 PCIe initialization sequence: Thomas Glanzmann (@sithglan), source d85dcbe23a28, retained with his authorship in commit 8bbc3ed23fb4.
• Current-tree PCIe/DART/GPIO bindings, J873 radio device-tree integration, ADT verification, and both-board qualification: @Acelogic, with Codex assistance.
• The Linux #998 dependency combines several authors' work: native Wi-Fi/Bluetooth foundations by @Acelogic (efa93c24e38d, a03e01fbb531); J873 board, per-function DMA, firmware scan/join, and Bluetooth adaptations by Joshua Warren (@joshuaswarren); and the real-MSI data path and Alpha MSI allocation by @sithglan (68d0acaba211, eb01c70f9380). The AP-switch disconnect-budget fix is @Acelogic's commit 298fee3294c6, developed and hardware-tested with Codex assistance.