Overview

There are already some efforts for mainlining:

• https://github.com/gemian/linux - 5.3
• https://github.com/Jasu/gemini-pda-buildroot - 4.19rc2
• https://github.com/freedomtan/X20-96-board/wiki/booting-mainline-kernel - v4.9-rc1
• https://github.com/NotKit/kernel-4.9-geminipda - 4.9
• https://github.com/hzy199411/linux-x20 - 4.19

Sources

There are already some Linux trees:

3.18 (original one)

• https://github.com/dguidipc/gemini-android-kernel-3.18 - from planet computers
• https://github.com/gemian/gemini-linux-kernel-3.18 - our branch with our fixes
• https://github.com/mdgem/kernel-3.18-geminipda - LED driver (now merged in our branch, driver needed some more fixes)
• https://github.com/ali1234/linux-gemini - with possible history attached

Resources

• https://mtk.bcnfs.org/doku.php?id=linux_mainline_effort - grid of mainline work for mediatek chips
• https://en.wikichip.org/wiki/mediatek/helio/mt6797x
• http://www.awinic.com.cn/download.php?id=upload/1525315520_.pdf (AW9120.pdf - LED controller)
• http://mtk.bcnfs.org - effort for mainlining MTK stuff
  • https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux.git/ - git repo thereof
  • https://mtk.bcnfs.org/doku.php?id=devices:mediatek_x20 - overview of the state of the x20
• Hardware Hacking - info found out about the hardware inside the gemini

Status of mainlining X27

• Core: 4.17: starts until reaching userspace! - https://bpaste.net/show/9867fac6f59b
• Watchdog:
• GPIO:
• UART: works - see link to output above.
• RTC:
• Power:
• USB:
• Storage:
• Display:
• GPU: https://rosenzweig.io/blog/ is a project for getting drivers for the Mali GPU.
• Video:
• WLAN:
• Bluetooth:
• Sound:
• LTE: