aarch64: misc. graphical boot fixes#63147
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samueldr merged 3 commits intoNixOS:masterfrom Jun 24, 2019
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This will reduce the confusion at boot, where the only thing visible is the last message from u-boot; where it looks like the Raspberry Pi is hung, while in reality it's likely resizing partitions.
This will reduce the confusion at boot, where the only thing visible is the last message from u-boot; where it looks like the board is hung, while in reality it's likely resizing partitions.
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I don't really have anything else I know how to do this on, yet. |
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Motivation for this change
Two main changes
1. HDMI for Allwinner SoCs
The
SUN8I_DE2_CCUconfiguration has been enabled for the Allwinner Display Engine 2.0.This makes the HDMI output work for Allwinner boards I tried.
2.
availableKernelModulesfor early mode settingThis adds the required kernel modules to the initrd so they are available earlier, allowing the modesetting to happen as early as possible. It ends up, both for vc4 and de2 to be right at the tail end of stage-1, but definitely before stage-2 has mounted the filesystems.
This means that on initial boot, it is more obvious that the board isn't hanging during boot, and the user will see the messages from the partition resizing processes, among other boot messages.
Things done
Tested on:
sandboxinnix.confon non-NixOS)nix-shell -p nix-review --run "nix-review wip"./result/bin/)nix path-info -Sbefore and after)