Sky1-Linux/linux

Full Linux kernel source with Sky1 SoC patches applied as commits on top of upstream tags.

This is the development repo where patches are written, tested, and rebased. Exported patches are published to linux-sky1 for distribution.

Branches

Branch	Base	Patches	Purpose
main	Latest 6.18.x stable tag	24	LTS — production kernel
rc	Latest 6.19-rcN tag	24	RC — pre-release testing
latest	Latest 6.19.x stable tag	—	Latest stable (when 6.19 releases)
next	Linus's master	—	Bleeding edge development
original-patches	v6.18.7	78	Archived — pre-consolidation history
master	—	0	Mirror of Linus upstream

Each track branch carries the same Sky1 patch set rebased onto its respective upstream base.

Patch structure

The first 13 patches are subsystem-grouped (consolidated from 78 original bringup commits). Subsequent patches are individual fixes and features.

Subsystem patches (1–13):

1. Device trees — SoC base + board DTS (O6, O6N)
2. PCIe — Cadence host controller, ATU, MSI, hotplug, I/O windows
3. Infrastructure — SCMI, mailbox, pinctrl, clock, reset, hwspinlock, eFuse, SoC info
4. USB / PHY — CDNSP, Type-C PD (RTS5453), USBDP PHYs
5. Display — linlon-dp, trilin-dpsub
6. GPU — Panthor Mali-G720 support
7. Audio — HDA, DMA-350, DSP
8. Networking — RTL8126 5GbE, RTL8125 2.5GbE
9. NPU — ArmChina Zhouyi (30 TOPS)
10. VPU — Linlon MVE video codec (H.264, HEVC, AV1, VP9)
11. IRQ / IOMMU / perf — PDC, SMMU boot-active streams, ARM SPE
12. Misc platform — Thermal, PWM, watchdog, DDR LP, bus DVFS, cpufreq
13. Dev scripts — build-install, update-dev-boot, kernel-track-status

Individual patches (14+):

14. RTL8125/8126 shutdown panic fix
15. Panthor SCMI perf domain DVFS
16. GPU OPP table
17. Panthor SCMI DVFS virtual device fix
18. WiFi RFKill GPIO fix (O6, O6N)
19. GPIO LEDs and pinctrl fixes (O6, O6N)
20. Orange Pi 6 Plus device tree
21. DPTX display driver warning fixes
22. DRM bridge chain for OPi6+ DP-to-HDMI
23. Panthor DVFS SCMI rate limiting
24. OPi6+ board-specific compatible string

Remotes

Remote	URL	Purpose
origin	git.kernel.org/.../torvalds/linux.git	Linus's tree (fetch tags, mirror master)
stable	git.kernel.org/.../stable/linux.git	Stable releases (fetch specific tags)
sky1	github.com/Sky1-Linux/linux.git	Our fork (push branches here)

Workflow

Rebasing to a new stable tag

git fetch stable tag v6.18.Y --no-tags
git rebase --onto v6.18.Y v6.18.X    # X = previous version
# resolve conflicts, verify patch count
git push --force sky1 HEAD:main

Exporting patches to linux-sky1

# Auto-detects output dir from branch (main → patches/, rc → patches-rc/, etc.)
~/sky1-linux-distro/sky1-linux-build/scripts/export-patches.sh

Building for local testing

./scripts/build-install.py        # build + install to EFI
./scripts/update-dev-boot.py      # regenerate GRUB entries

Related

• linux-sky1 — Exported patches + configs (what users consume)
• sky1-linux-build — Debian package build scripts
• Sky1 Linux — Full project