Use with care!

Please, do not use kernel with these patches on a board without proper cooling!

I'm not responsible for any damage.

Please, review the code before use.

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Description

This is set of scripts for OpenBSD kernel development (huge words for just some humble attempts) for Pine A64+ arm64 boards.

Please note, some things may also work for other Sunxi boards but it was never tested.

With u-boot from this repository: https://github.com/elewarr/openbsd-ports-u-boot, A64 is able to:

1. read CPU/GPU temperature properly
2. adjust CPU speed (review u-boot patches for details) using apm, please note throttling is not supported at the moment, set desired value using apm manually

Environment

1. env - setup basic environment (review before use)
2. bin/ - scripts
3. build_cross_tools - build toolset necessary to crosscompile kernel
4. build_kernel - build GENERIC.MP
5. deploy - copy new kernel over ssh and install it, also write u-boot SPL
6. checkout - repo from cvs
7. cross_env - environment used by build_kernel
8. patch - apply all *.patches from patches/
9. update - repo from cvs
10. update-patches - diff all modified files with their *.orig counterparts and put to patches/
11. patches/ - A64 patches

Prerequisites

1. build the port from https://github.com/elewarr/openbsd-ports-u-boot

Setup

1. git clone git@github.com:elewarr/openbsd-arm64-src-dev.git
2. cd openbsd-arm64-src-dev
3. . ./env
4. ./bin/checkout
5. ./bin/build_cross_tools

Apply patches

1. ./bin/patch

Build kernel

1. ./bin/build_kernel

Deploy

Review and edit ./env before use.

1. ./bin/deploy

Generate new patches - one per file (will overwrite existing ones)

1. ./bin/update-patches