memrelay/MemRelay
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
6a6a895eafcca6052e81a14fca103a42635dd1c2
MemRelay/projects/d0abaf3f-da04-4dd4-a228-bacf68f44e8f/curated/development/Architecture Overview of the BDYG18Pro Armbian Build System.md
T

4.6 KiB
Raw Blame History

title, type, permalink, stable_id, scope, project_id, workspace_type, usage_profile_id, preference_context, document_type, revision, source_memory_ids, source_checkpoint_ids, source_file_ids, source_git_commit, source_git_commits, source_agent_sync_ids, model_connection, model_name, source_count, source_revisions, source_dispositions, cited_source_ids, job_cited_source_ids, conflicts, supersedes, preferences, source_cursor, source_hash, prompt_version, schema_version, curation_job_id, created_at, updated_at, tags
title type permalink stable_id scope project_id workspace_type usage_profile_id preference_context document_type revision source_memory_ids source_checkpoint_ids source_file_ids source_git_commit source_git_commits source_agent_sync_ids model_connection model_name source_count source_revisions source_dispositions cited_source_ids job_cited_source_ids conflicts supersedes preferences source_cursor source_hash prompt_version schema_version curation_job_id created_at updated_at tags
Architecture Overview of the BDYG18Pro Armbian Build System curated main/projects/d0abaf3f-da04-4dd4-a228-bacf68f44e8f/curated/development/architecture-overview-of-the-bdyg18-pro-armbian-build-system adb3722a-51e7-4ec5-88cc-a95dc399a7a1 project d0abaf3f-da04-4dd4-a228-bacf68f44e8f development null development architecture 8
36234e0082845515a053c10ee552ce35a03415f0
36234e0082845515a053c10ee552ce35a03415f0
Sub2API openai/gpt-oss-120b 125
memory:11052d10-1adf-4d39-800a-08f9ae708758 memory:7cf6c014-d2fa-4f99-9ed9-c070b108d3c7 memory:bea4a5ba-4685-4869-a02e-f0f1c7f733ea memory:340af5e9-b3e5-423a-9971-b370992738ce memory:d5cbbc04-5929-4583-90b4-bd6c8295db25
1 1 1 1 1
processed unchanged unsupported skipped
78 0 47 0
memory:11052d10-1adf-4d39-800a-08f9ae708758
memory:7cf6c014-d2fa-4f99-9ed9-c070b108d3c7
memory:bea4a5ba-4685-4869-a02e-f0f1c7f733ea
memory:340af5e9-b3e5-423a-9971-b370992738ce
memory:d5cbbc04-5929-4583-90b4-bd6c8295db25
0 5fe39ad3a37421f812566dd39f89d4c28fc6078c8d39031dff10eb6eb8d72e00 2026-08-12.3 3 75339546-fef5-4656-8969-ba806e3ea6f0 2026-08-08T10:02:33.012303+00:00 2026-08-16T18:45:05.147636+00:00
hardware
boot
docker
repo

Architecture Overview

1. Hardware Platform

Component Specification
SoC Rockchip RK3568 – quad‑core Cortex‑A55 @ 2 GHz, Mali‑G710 GPU, VPU, RGA, HDMI, PCIe, USB 3.0.
Memory 8 GB DDR4 HS200 (2.5 V).
Storage 256 GB eMMC (boot + rootfs) + 32 MB Winbond W25Q256JW SPI‑NOR (blank).
Switch Realtek RTL8367S 5‑port DSA (GMAC1 active, GMAC0 disabled).
Network Ethernet MAC‑1 (end0), TSO disabled, TCP congestion = Cubic.
UART console serial@fe660000 → ttyS2 @ 1 500 000 baud (pins RX/D0, TX/D1).

Source: evidence/dtb/rk3568-bdy-g18-pro.fixed.dts, evidence/dtb/rk3568-bdy-g18-pro.orig.dts.

2. Boot Flow

  1. MaskROM reads SPL from DDR (address 0x08000) after power‑on.
  2. SPL (Rockchip rk356x_spl_loader_v1.25.114.bin preferred) initialises DDR and loads U‑Boot (mainline 2026.04) from the SPL payload.
  3. U‑Boot loads a FIT image (uboot‑fit‑rk3568‑bdy‑g18‑pro.dts) containing BL31, kernel, and DTB.
  4. Kernel Linux 6.18.40‑current‑rockchip64 boots with DTB rk3568‑bdy‑g18‑pro.dtb.

All steps are verified by flashing the SPL to SPI‑NOR, reading back SHA‑256, and confirming boot success (see evidence/selfbuilt-uboot-brideup.txt).

3. Repository Layout & Build Infrastructure

Directory Purpose
arm64‑custom/ Custom board scripts & patches (tracked).
evidence/ Raw logs, screenshots, serial captures (tracked).
aidocs/ Additional documentation (tracked).
outputs/armbian-g18pro/ Final artefacts – compressed image, SHA‑256 manifest, verification report.
armbian‑g18pro‑cache (Docker volume) Persistent cache (~19 GB) for U‑Boot, kernel, ccache.

Build orchestrator: Python script armbian‑custom/build_g18pro.py + PowerShell wrapper build_g18pro.ps1. Docker image ghcr.io/armbian/docker-armbian-build:armbian-ubuntu-noble-latest is used; shallow Git clones (--depth 1) minimise download size.

4. Runtime System State (as of 16 Aug 2026)

  • Kernel: 6.18.40‑current‑rockchip64
  • U‑Boot: Mainline v2026.04 on SPI‑NOR; vendor U‑Boot remains on eMMC as fallback.
  • Network: tso off, cubic congestion, throughput ≈ 30 Mbps.
  • Power‑off: systemctl poweroff hangs (requires manual power‑cycle); syscon‑reboot‑mode DTB node restores clean reboot.
  • Docker cache: volume present, speeds up incremental builds.

Source: abe4221f-b290-4384-ad8f-1f72c360b893.

References

  • c650c1e4-18ee-44ad-af42-b7632fbdcf5c
  • dd496c6d-1619-457d-86a9-da57f5b866d7
  • S-1
  • aa3057ab-54c5-4ffc-ba85-c2f2396ee60c
  • bf88c265-4749-4c50-85bc-4bae25298cd5
  • ff34c6eb-6bba-41e5-9e43-ff80941fa823
  • adb3722a-51e7-4ec5-88cc-a95dc399a7a1
  • abe4221f-b290-4384-ad8f-1f72c360b893
Reference in New Issue View Git Blame Copy Permalink