forked from DGNum/liminix
turris omnia: switch to regular tftpboot output
now it does zimage and rootfs compression
This commit is contained in:
Daniel Barlow
parent
c931d84828
commit
1042be912c
2 changed files with 14 additions and 103 deletions
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@ -11,10 +11,11 @@
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};
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};
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module = {pkgs, config, lib, lim, ... }:
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module = {pkgs, config, lib, lim, ... }:
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let openwrt = pkgs.openwrt; in {
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let openwrt = pkgs.openwrt;
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in {
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imports = [
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imports = [
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../../modules/arch/arm.nix
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../../modules/arch/arm.nix
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../../modules/outputs/tftpbootlz.nix
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../../modules/outputs/tftpboot.nix
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../../modules/outputs/ext4fs.nix
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../../modules/outputs/ext4fs.nix
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../../modules/outputs/mbrimage.nix
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../../modules/outputs/mbrimage.nix
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../../modules/outputs/extlinux.nix
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../../modules/outputs/extlinux.nix
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@ -116,7 +117,11 @@
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};
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};
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};
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};
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boot.tftp.loadAddress = lim.parseInt "0x1000000";
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boot.tftp = {
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loadAddress = lim.parseInt "0x1000000";
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kernelFormat = "zimage";
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compressRoot = true;
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};
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hardware = let
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hardware = let
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mac80211 = pkgs.mac80211.override {
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mac80211 = pkgs.mac80211.override {
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@ -1,94 +0,0 @@
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{
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config
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, pkgs
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, lib
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, ...
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}:
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let
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inherit (lib) mkOption types concatStringsSep;
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inherit (pkgs.lib.trivial) toHexString;
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o = config.system.outputs;
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cmdline = concatStringsSep " " config.boot.commandLine;
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cfg = config.boot.tftp;
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tftpbootlz =
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pkgs.buildPackages.runCommand "tftpbootlz" {
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nativeBuildInputs = with pkgs.pkgsBuildBuild; [ lzma dtc ];
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} ''
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binsize() { local s=$(stat -L -c %s $1); echo $(($s + 0x1000 &(~0xfff))); }
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binsize64k() { local s=$(stat -L -c %s $1); echo $(($s + 0x10000 &(~0xffff))); }
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hex() { printf "0x%x" $1; }
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kernelStart=${toString cfg.loadAddress}
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kernelSize=$(binsize ${o.zimage})
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mkdir -p $out
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cat ${o.dtb} > $out/dtb
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fdtput -p -t lx $out/dtb /reserved-memory '#address-cells' 1
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fdtput -t lx $out/dtb /reserved-memory '#size-cells' 1
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fdtput $out/dtb /reserved-memory ranges
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fdtput -p -t s $out/dtb /reserved-memory/phram-rootfs compatible phram
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# can't calculate the actual address here until we know how
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# big the dtb will be
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fdtput -t lx $out/dtb /reserved-memory/phram-rootfs reg 0xdead 0xcafe
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cmd="liminix ${cmdline} mtdparts=phram0:999999999999(rootfs) phram.phram=phram0,999999999999,999999999999,${toString config.hardware.flash.eraseBlockSize} root=/dev/mtdblock0";
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fdtput -t s $out/dtb /chosen bootargs "$cmd"
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dtbStart=$(($kernelStart + $kernelSize))
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dtbSize=$(binsize $out/dtb)
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rootfsOrigSize=$(binsize64k ${o.rootfs})
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lzma -z9cv ${o.rootfs} > $out/rootfs.lz
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rootfsLzSize=$(binsize $out/rootfs.lz)
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rootfsLzStart=$(($dtbStart + $dtbSize))
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rootfsOrigStart=$(($rootfsLzStart + $rootfsLzSize))
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fdtput -t lx $out/dtb /reserved-memory/phram-rootfs reg $(printf "%x" $rootfsOrigStart) $(printf "%x" $rootfsOrigSize)
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cmd="liminix ${cmdline} mtdparts=phram0:''${rootfsOrigSize}(rootfs) phram.phram=phram0,''${rootfsOrigStart},''${rootfsOrigSize},${toString config.hardware.flash.eraseBlockSize} root=/dev/mtdblock0";
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fdtput -t s $out/dtb /chosen bootargs "$cmd"
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# dtc -I dtb -O dts -o /dev/stdout $out/dtb | grep -A10 reserved-memory; exit 1
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(cd $out;
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ln -s ${o.zimage} zImage
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ln -s ${o.manifest} manifest
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ln -s ${o.kernel.headers} build)
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cat > $out/boot.scr << EOF
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setenv serverip ${cfg.serverip}
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setenv ipaddr ${cfg.ipaddr}
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tftpboot $(hex $kernelStart) result/zImage; tftpboot $(hex $dtbStart) result/dtb ; tftpboot $(hex $rootfsLzStart) result/rootfs.lz
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lzmadec $(hex $rootfsLzStart) $(hex $rootfsOrigStart)
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bootz $(hex $kernelStart) - $(hex $dtbStart)
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EOF
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'';
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in {
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imports = [ ../ramdisk.nix ];
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options.boot.tftp.freeSpaceBytes = mkOption {
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type = types.int;
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default = 0;
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};
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options.system.outputs = {
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tftpbootlz = mkOption {
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type = types.package;
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description = ''
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tftpbootlz
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**********
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This is a variant of the tftpboot output intended for the
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Turris Omnia. It uses a zImage instead of a uimage, as a
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workaround for an awkwardly low CONFIG_SYS_BOOTM_LEN setting
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in the U-Boot build for the device which means it won't boot
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uimages unless they're teeny tiny.
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As a bonus, it also uses lzma compression on the rootfs,
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which reduces a 20MB ext4 image to around 4MB
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'';
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};
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};
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config = {
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boot.ramdisk.enable = true;
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system.outputs = {
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inherit tftpbootlz;
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};
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};
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}
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