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remove boot-scr output, merge into tftpboot

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(1) it creates two things (script and dtb); (2) it's a bit pointless
without the tftpboot output it depends on
This commit is contained in:
Daniel Barlow 2023-12-22 21:37:15 +00:00
parent c7b2733bea
commit 44a0cf364b
1 changed files with 11 additions and 26 deletions
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37
modules/outputs/tftpboot.nix
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@ -35,40 +35,25 @@ in {
It uses the Linux `phram <https://github.com/torvalds/linux/blob/master/drivers/mtd/devices/phram.c>`_ driver to emulate a flash device using a segment of physical RAM.
'';
};
boot-scr = mkOption {
type = types.package;
internal = true;
description = ''
U-Boot commands to load and boot a kernel and rootfs over TFTP.
Copy-paste into the device boot monitor
'';
};
};
config = {
boot.ramdisk.enable = true;
system.outputs = rec {
tftpboot =
let o = config.system.outputs; in
pkgs.runCommand "tftpboot" {} ''
mkdir $out
cd $out
ln -s ${o.rootfs} rootfs
ln -s ${o.kernel} vmlinux
ln -s ${o.manifest} manifest
ln -s ${o.kernel.headers} build
ln -s ${o.uimage} uimage
ln -s ${o.boot-scr}/dtb dtb
ln -s ${o.boot-scr}/script boot.scr
'';
boot-scr =
let
inherit (pkgs.lib.trivial) toHexString;
o = config.system.outputs;
cmdline = concatStringsSep " " config.boot.commandLine;
in
pkgs.buildPackages.runCommand "boot-scr" { nativeBuildInputs = [ pkgs.pkgsBuildBuild.dtc ]; } ''
pkgs.runCommand "tftpboot" { nativeBuildInputs = [ pkgs.pkgsBuildBuild.dtc ]; } ''
mkdir $out
cd $out
ln -s ${o.rootfs} rootfs
ln -s ${o.kernel} vmlinux
ln -s ${o.manifest} manifest
ln -s ${o.kernel.headers} build
ln -s ${o.uimage} uimage
uimageSize=$(($(stat -L -c %s ${o.uimage}) + 0x1000 &(~0xfff)))
rootfsStart=$(printf %x $((${toString cfg.loadAddress} + 0x100000 + $uimageSize &(~0xfffff) )))
rootfsBytes=$(($(stat -L -c %s ${o.rootfs}) + 0x100000 &(~0xfffff)))
@ -78,7 +63,6 @@ in {
dtbStart=$(printf %x $((${toString cfg.loadAddress} + $rootfsBytes + 0x100000 + $uimageSize )))
mkdir $out
cat ${o.dtb} > $out/dtb
address_cells=$(fdtget $out/dtb / '#address-cells')
size_cells=$(fdtget $out/dtb / '#size-cells')
@ -94,14 +78,15 @@ in {
# dtc -I dtb -O dts -o /dev/stdout $out/dtb | grep -A10 reserved-mem ; exit 1
dtbBytes=$(($(stat -L -c %s $out/dtb) + 0x1000 &(~0xfff)))
cat > $out/script << EOF
cat > $out/boot.scr << EOF
setenv serverip ${cfg.serverip}
setenv ipaddr ${cfg.ipaddr}
setenv bootargs 'liminix ${cmdline} $cmd'
tftpboot 0x${lib.toHexString cfg.loadAddress} result/uimage ; tftpboot 0x$rootfsStart result/rootfs ; tftpboot 0x$dtbStart result/dtb
bootm 0x${lib.toHexString cfg.loadAddress} - 0x$dtbStart
EOF
'';
'';
};
};
}