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sd-image-raspberrypi4: Use u-boot for booting

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This includes setting up everything for the mainline Raspberry Pi 4
image.

In fact, the only difference left in the Raspberry Pi 4-specific image
is the kernel from the vendor.
This commit is contained in:
Samuel Dionne-Riel 2020-09-12 22:48:05 -04:00 committed by Milan
parent 95cd8c8d7b
commit f9d5de05d2
2 changed files with 25 additions and 34 deletions
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27
nixos/modules/installer/cd-dvd/sd-image-aarch64.nix
View File

@ -30,13 +30,25 @@
sdImage = {
populateFirmwareCommands = let
configTxt = pkgs.writeText "config.txt" ''
[pi3]
kernel=u-boot-rpi3.bin
[pi4]
kernel=u-boot-rpi4.bin
enable_gic=1
armstub=armstub8-gic.bin
# Otherwise the resolution will be weird in most cases, compared to
# what the pi3 firmware does by default.
disable_overscan=1
[all]
# Boot in 64-bit mode.
arm_64bit=1
# U-Boot used to need this to work, regardless of whether UART is actually used or not.
# TODO: check when/if this can be removed.
# U-Boot needs this to work, regardless of whether UART is actually used or not.
# Look in arch/arm/mach-bcm283x/Kconfig in the U-Boot tree to see if this is still
# a requirement in the future.
enable_uart=1
# Prevent the firmware from smashing the framebuffer setup done by the mainline kernel
@ -45,8 +57,17 @@
'';
in ''
(cd ${pkgs.raspberrypifw}/share/raspberrypi/boot && cp bootcode.bin fixup*.dat start*.elf $NIX_BUILD_TOP/firmware/)
cp ${pkgs.ubootRaspberryPi3_64bit}/u-boot.bin firmware/u-boot-rpi3.bin
# Add the config
cp ${configTxt} firmware/config.txt
# Add pi3 specific files
cp ${pkgs.ubootRaspberryPi3_64bit}/u-boot.bin firmware/u-boot-rpi3.bin
# Add pi4 specific files
cp ${pkgs.ubootRaspberryPi4_64bit}/u-boot.bin firmware/u-boot-rpi4.bin
cp ${pkgs.raspberrypi-armstubs}/armstub8-gic.bin firmware/armstub8-gic.bin
cp ${pkgs.raspberrypifw}/share/raspberrypi/boot/bcm2711-rpi-4-b.dtb firmware/
'';
populateRootCommands = ''
mkdir -p ./files/boot

32
nixos/modules/installer/cd-dvd/sd-image-raspberrypi4.nix
View File

@ -3,36 +3,6 @@
{ config, lib, pkgs, ... }:
{
imports = [
../../profiles/base.nix
../../profiles/installation-device.nix
./sd-image.nix
];
boot.loader.grub.enable = false;
boot.loader.raspberryPi.enable = true;
boot.loader.raspberryPi.version = 4;
imports = [ ./sd-image-aarch64.nix ];
boot.kernelPackages = pkgs.linuxPackages_rpi4;
boot.consoleLogLevel = lib.mkDefault 7;
sdImage = {
firmwareSize = 128;
firmwarePartitionName = "NIXOS_BOOT";
# This is a hack to avoid replicating config.txt from boot.loader.raspberryPi
populateFirmwareCommands =
"${config.system.build.installBootLoader} ${config.system.build.toplevel} -d ./firmware";
# As the boot process is done entirely in the firmware partition.
populateRootCommands = "";
};
fileSystems."/boot/firmware" = {
# This effectively "renames" the attrsOf entry set in sd-image.nix
mountPoint = "/boot";
neededForBoot = true;
};
# the installation media is also the installation target,
# so we don't want to provide the installation configuration.nix.
installer.cloneConfig = false;
}