mirror of
https://github.com/nix-community/raspberry-pi-nix.git
synced 2025-11-08 19:46:03 +01:00
populate firmware partition via systemd service
Only copy files from modified packages.
This commit is contained in:
Travis Staton
parent
3ca8c6898a
commit
a1b4cadb53
2 changed files with 93 additions and 39 deletions
15
README.md
15
README.md
|
|
@ -87,8 +87,8 @@ the aarch64 installation media from nixpkgs: There is a firmware
|
||||||
partition that contains necessary firmware, u-boot, and
|
partition that contains necessary firmware, u-boot, and
|
||||||
config.txt. Then there is another partition (labeled `NIXOS_SD`) that
|
config.txt. Then there is another partition (labeled `NIXOS_SD`) that
|
||||||
contains everything else. The firmware and `config.txt` file are
|
contains everything else. The firmware and `config.txt` file are
|
||||||
managed by NixOS modules defined in this package. Additionally, NixOS
|
managed by NixOS modules defined in this package. Additionally, a
|
||||||
system activation will update the firmware and `config.txt` in the
|
systemd service will update the firmware and `config.txt` in the
|
||||||
firmware partition __in place__. Linux kernels are stored in the
|
firmware partition __in place__. Linux kernels are stored in the
|
||||||
`NIXOS_SD` partition and will be booted by u-boot in the firmware
|
`NIXOS_SD` partition and will be booted by u-boot in the firmware
|
||||||
partition.
|
partition.
|
||||||
|
|
@ -96,7 +96,8 @@ partition.
|
||||||
## `config.txt` generation
|
## `config.txt` generation
|
||||||
|
|
||||||
As noted, the `config.txt` file is generated by the NixOS
|
As noted, the `config.txt` file is generated by the NixOS
|
||||||
configuration and automatically updated on system activation.
|
configuration and automatically updated on when the nix configuration
|
||||||
|
is modified.
|
||||||
|
|
||||||
The relevant nixos option is
|
The relevant nixos option is
|
||||||
`hardware.raspberry-pi.config`. Configuration is partitioned into
|
`hardware.raspberry-pi.config`. Configuration is partitioned into
|
||||||
|
|
@ -254,8 +255,8 @@ device tree configuration is controlled via the [config.txt
|
||||||
file](https://www.raspberrypi.com/documentation/computers/config_txt.html).
|
file](https://www.raspberrypi.com/documentation/computers/config_txt.html).
|
||||||
|
|
||||||
Additionally, the firmware, device trees, and overlays from the
|
Additionally, the firmware, device trees, and overlays from the
|
||||||
`raspberrypifw` package populate the firmware partition on system
|
`raspberrypifw` package populate the firmware partition. This package
|
||||||
activation. This package is kept up to date by the overlay applied by
|
is kept up to date by the overlay applied by this package, so you
|
||||||
this package, so you don't need configure this. However, if you want
|
don't need configure this. However, if you want to use different
|
||||||
to use different firmware you can override that package to do so.
|
firmware you can override that package to do so.
|
||||||
|
|
||||||
|
|
|
||||||
117
rpi/default.nix
117
rpi/default.nix
|
|
@ -4,43 +4,96 @@
|
||||||
{
|
{
|
||||||
imports = [ ../sd-image ./config.nix ./i2c.nix ];
|
imports = [ ../sd-image ./config.nix ./i2c.nix ];
|
||||||
|
|
||||||
# On activation install u-boot, Raspberry Pi firmware, and our
|
systemd.services = {
|
||||||
# generated config.txt
|
"raspberry-pi-firmware-migrate" = {
|
||||||
system.activationScripts.raspberrypi = {
|
description = "update the firmware partition";
|
||||||
text = ''
|
wantedBy = [ "multi-user.target" ];
|
||||||
shopt -s nullglob
|
serviceConfig = let firmware-path = "/boot/firmware";
|
||||||
|
in {
|
||||||
|
Type = "oneshot";
|
||||||
|
MountImages =
|
||||||
|
"/dev/disk/by-label/${config.sdImage.firmwarePartitionName}:${firmware-path}";
|
||||||
|
StateDirectory = "raspberrypi-firmware";
|
||||||
|
ExecStart = pkgs.writeShellScript "migrate-rpi-firmware" ''
|
||||||
|
shopt -s nullglob
|
||||||
|
|
||||||
TARGET_FIRMWARE_DIR="/boot/firmware"
|
TARGET_FIRMWARE_DIR="${firmware-path}"
|
||||||
TARGET_OVERLAYS_DIR="$TARGET_FIRMWARE_DIR/overlays"
|
TARGET_OVERLAYS_DIR="$TARGET_FIRMWARE_DIR/overlays"
|
||||||
TMPFILE="$TARGET_FIRMWARE_DIR/tmp"
|
TMPFILE="$TARGET_FIRMWARE_DIR/tmp"
|
||||||
UBOOT="${pkgs.uboot_rpi_arm64}/u-boot.bin"
|
UBOOT="${pkgs.uboot_rpi_arm64}/u-boot.bin"
|
||||||
SRC_FIRMWARE_DIR="${pkgs.raspberrypifw}/share/raspberrypi/boot"
|
SRC_FIRMWARE_DIR="${pkgs.raspberrypifw}/share/raspberrypi/boot"
|
||||||
STARTFILES=("$SRC_FIRMWARE_DIR"/start*.elf)
|
STARTFILES=("$SRC_FIRMWARE_DIR"/start*.elf)
|
||||||
DTBS=("$SRC_FIRMWARE_DIR"/*.dtb)
|
DTBS=("$SRC_FIRMWARE_DIR"/*.dtb)
|
||||||
BOOTCODE="$SRC_FIRMWARE_DIR/bootcode.bin"
|
BOOTCODE="$SRC_FIRMWARE_DIR/bootcode.bin"
|
||||||
FIXUPS=("$SRC_FIRMWARE_DIR"/fixup*.dat)
|
FIXUPS=("$SRC_FIRMWARE_DIR"/fixup*.dat)
|
||||||
SRC_OVERLAYS_DIR="$SRC_FIRMWARE_DIR/overlays"
|
SRC_OVERLAYS_DIR="$SRC_FIRMWARE_DIR/overlays"
|
||||||
SRC_OVERLAYS=("$SRC_OVERLAYS_DIR"/*)
|
SRC_OVERLAYS=("$SRC_OVERLAYS_DIR"/*)
|
||||||
CONFIG="${config.hardware.raspberry-pi.config-output}"
|
CONFIG="${config.hardware.raspberry-pi.config-output}"
|
||||||
|
|
||||||
cp "$UBOOT" "$TMPFILE"
|
migrate_uboot() {
|
||||||
mv -T "$TMPFILE" "$TARGET_FIRMWARE_DIR/u-boot-rpi-arm64.bin"
|
echo "migrating uboot"
|
||||||
|
touch "$STATE_DIRECTORY/uboot-migration-in-progress"
|
||||||
|
cp "$UBOOT" "$TMPFILE"
|
||||||
|
mv -T "$TMPFILE" "$TARGET_FIRMWARE_DIR/u-boot-rpi-arm64.bin"
|
||||||
|
echo "${
|
||||||
|
builtins.toString pkgs.uboot_rpi_arm64
|
||||||
|
}" > "$STATE_DIRECTORY/uboot-version"
|
||||||
|
rm "$STATE_DIRECTORY/uboot-migration-in-progress"
|
||||||
|
}
|
||||||
|
|
||||||
cp "$CONFIG" "$TMPFILE"
|
migrate_config() {
|
||||||
mv -T "$TMPFILE" "$TARGET_FIRMWARE_DIR/config.txt"
|
echo "migrating config.txt"
|
||||||
|
touch "$STATE_DIRECTORY/config-migration-in-progress"
|
||||||
|
cp "$CONFIG" "$TMPFILE"
|
||||||
|
mv -T "$TMPFILE" "$TARGET_FIRMWARE_DIR/config.txt"
|
||||||
|
echo "${config.hardware.raspberry-pi.config-output}" > "$STATE_DIRECTORY/config-version"
|
||||||
|
rm "$STATE_DIRECTORY/config-migration-in-progress"
|
||||||
|
}
|
||||||
|
|
||||||
for SRC in "''${STARTFILES[@]}" "''${DTBS[@]}" "$BOOTCODE" "''${FIXUPS[@]}"
|
migrate_firmware() {
|
||||||
do
|
echo "migrating raspberrypi firmware"
|
||||||
cp "$SRC" "$TMPFILE"
|
touch "$STATE_DIRECTORY/firmware-migration-in-progress"
|
||||||
mv -T "$TMPFILE" "$TARGET_FIRMWARE_DIR/$(basename "$SRC")"
|
for SRC in "''${STARTFILES[@]}" "''${DTBS[@]}" "$BOOTCODE" "''${FIXUPS[@]}"
|
||||||
done
|
do
|
||||||
|
cp "$SRC" "$TMPFILE"
|
||||||
|
mv -T "$TMPFILE" "$TARGET_FIRMWARE_DIR/$(basename "$SRC")"
|
||||||
|
done
|
||||||
|
|
||||||
for SRC in "''${SRC_OVERLAYS[@]}"
|
if [[ ! -d "$TARGET_OVERLAYS_DIR" ]]; then
|
||||||
do
|
mkdir "$TARGET_OVERLAYS_DIR"
|
||||||
cp "$SRC" "$TMPFILE"
|
fi
|
||||||
mv -T "$TMPFILE" "$TARGET_OVERLAYS_DIR/$(basename "$SRC")"
|
|
||||||
done
|
for SRC in "''${SRC_OVERLAYS[@]}"
|
||||||
'';
|
do
|
||||||
|
cp "$SRC" "$TMPFILE"
|
||||||
|
mv -T "$TMPFILE" "$TARGET_OVERLAYS_DIR/$(basename "$SRC")"
|
||||||
|
done
|
||||||
|
echo "${
|
||||||
|
builtins.toString pkgs.raspberrypifw
|
||||||
|
}" > "$STATE_DIRECTORY/firmware-version"
|
||||||
|
rm "$STATE_DIRECTORY/firmware-migration-in-progress"
|
||||||
|
}
|
||||||
|
|
||||||
|
if [[ -f "$STATE_DIRECTORY/uboot-migration-in-progress" || ! -f "$STATE_DIRECTORY/uboot-version" || $(< "$STATE_DIRECTORY/uboot-version") != ${
|
||||||
|
builtins.toString pkgs.uboot_rpi_arm64
|
||||||
|
} ]]; then
|
||||||
|
migrate_uboot
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [[ -f "$STATE_DIRECTORY/config-migration-in-progress" || ! -f "$STATE_DIRECTORY/config-version" || $(< "$STATE_DIRECTORY/config-version") != ${
|
||||||
|
builtins.toString config.hardware.raspberry-pi.config-output
|
||||||
|
} ]]; then
|
||||||
|
migrate_config
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [[ -f "$STATE_DIRECTORY/firmware-migration-in-progress" || ! -f "$STATE_DIRECTORY/firmware-version" || $(< "$STATE_DIRECTORY/firmware-version") != ${
|
||||||
|
builtins.toString pkgs.raspberrypifw
|
||||||
|
} ]]; then
|
||||||
|
migrate_firmware
|
||||||
|
fi
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
};
|
||||||
};
|
};
|
||||||
|
|
||||||
# Default config.txt on Raspberry Pi OS:
|
# Default config.txt on Raspberry Pi OS:
|
||||||
|
|
|
||||||
Loading…
Add table
Add a link
Reference in a new issue