mirror of
https://github.com/samueldr/wip-pinebook-pro.git
synced 2024-06-02 11:03:34 +02:00
42 lines
1.3 KiB
Markdown
42 lines
1.3 KiB
Markdown
WIP stuff to get started on the pinebook pro.
|
|
|
|
## `u-boot`
|
|
|
|
Assuming `/dev/mmcblk0` is an SD card.
|
|
|
|
```
|
|
$ nix-build -A pkgs.uBootPinebookPro
|
|
$ lsblk /dev/mmcblk0 && sudo dd if=result/idbloader.img of=/dev/mmcblk0 bs=512 seek=64 oflag=direct,sync && sudo dd if=result/u-boot.itb of=/dev/mmcblk0 bs=512 seek=16384 oflag=direct,sync
|
|
```
|
|
|
|
The eMMC has to be zeroed (in the relevant sectors) or else the RK3399 will use
|
|
the eMMC as a boot device first.
|
|
|
|
Alternatively, this u-boot can be installed to the eMMC.
|
|
|
|
Installing to SPI has yet to be investigated.
|
|
|
|
## Image build
|
|
|
|
```
|
|
$ ./build.sh
|
|
$ lsblk /dev/mmcblk0 && sudo dd if=$(echo result/sd-image/*.img) of=/dev/mmcblk0 bs=8M oflag=direct status=progress
|
|
```
|
|
|
|
The `build.sh` script transmits parameters to `nix-build`, so e.g. `-j0` can
|
|
be used.
|
|
|
|
Once built, this image is self-sufficient, meaning that it should already be
|
|
booting, no need burn u-boot to it.
|
|
|
|
The required modules (and maybe a bit more) are present in stage-1 so the
|
|
display should start early enough in the boot process.
|
|
|
|
## Note about cross-compilation
|
|
|
|
This will automatically detect the need for cross-compiling or not.
|
|
|
|
When cross-compiled, all caveats apply. Here this mainly means that the kernel
|
|
will need to be re-compiled on the device on the first nixos-rebuild switch,
|
|
while most other packages can be fetched from the cache.
|