feat: add support for radxa rock 4c+

Build a Talos overlay for the Radxa ROCK 4C+ SBC.

Signed-off-by: Damià Poquet Femenia <[email protected]>

README.md

@@ -10,3 +10,4 @@ This repo provides the overlay for RockChip based Talos image.
 | rock64       | Pine64 Rock64         | Overlay for Pine64 Rock64                     |
 | rockpi4      | Rock Pi 4A,Rock Pi 4B | Generic overlay for Rock Pi 4A and Rock Pi 4B |
 | rockpi4c     | Rock Pi 4C            | Overlay for Rock Pi 4C                        |
+| rock4cplus   | Radxa ROCK 4C+        | Overlay for Radxa ROCK 4C+                    |

artifacts/rock4cplus/u-boot/pkg.yaml

@@ -0,0 +1,39 @@
+# References:
+#   U-Boot:
+#     - https://u-boot.readthedocs.io/en/latest
+name: u-boot-rock4cplus
+variant: scratch
+shell: /toolchain/bin/bash
+dependencies:
+  - stage: base
+  - stage: arm-trusted-firmware-rk3399
+steps:
+  - sources:
+      - url: https://ftp.denx.de/pub/u-boot/u-boot-{{ .uboot_version }}.tar.bz2
+        destination: u-boot.tar.bz2
+        sha256: "{{ .uboot_sha256 }}"
+        sha512: "{{ .uboot_sha512 }}"
+    env:
+      SOURCE_DATE_EPOCH: {{ .BUILD_ARG_SOURCE_DATE_EPOCH }}
+    prepare:
+      # rock-4c-plus-rk3399
+      - |
+        mkdir -p /usr/bin \
+          && ln -sf /toolchain/bin/env /usr/bin/env \
+          && ln -sf /toolchain/bin/python3 /toolchain/bin/python
+
+        pip3 install pyelftools
+
+        tar xf u-boot.tar.bz2 --strip-components=1
+      - |
+        make rock-4c-plus-rk3399_defconfig
+    build:
+      - |
+        make -j $(nproc) HOSTLDLIBS_mkimage="-lssl -lcrypto" BL31=/libs/arm-trusted-firmware/rk3399/bl31.elf
+    install:
+      - |
+        mkdir -p /rootfs/artifacts/arm64/u-boot/rock4cplus
+        cp u-boot-rockchip.bin /rootfs/artifacts/arm64/u-boot/rock4cplus
+finalize:
+  - from: /rootfs
+    to: /rootfs

go.work

@@ -5,4 +5,5 @@ use (
 	./installers/rock64/src
 	./installers/rockpi4/src
 	./installers/rockpi4c/src
+	./installers/rock4cplus/src
 )

installers/pkg.yaml

@@ -15,6 +15,8 @@ dependencies:
     platform: linux/arm64
   - stage: u-boot-rockpi4c
     platform: linux/arm64
+  - stage: u-boot-rock4cplus
+    platform: linux/arm64
   - image: "{{ .BUILD_ARG_PKGS_PREFIX }}/kernel:{{ .BUILD_ARG_PKGS }}"
     platform: linux/arm64
     from: /dtb/rockchip/rk3399-nanopi-r4s.dtb
@@ -31,6 +33,10 @@ dependencies:
     platform: linux/arm64
     from: /dtb/rockchip/rk3399-rock-pi-4c.dtb
     to: /rootfs/artifacts/arm64/dtb/rockchip/rk3399-rock-pi-4c.dtb
+  - image: "{{ .BUILD_ARG_PKGS_PREFIX }}/kernel:{{ .BUILD_ARG_PKGS }}"
+    platform: linux/arm64
+    from: /dtb/rockchip/rk3399-rock-4c-plus.dtb
+    to: /rootfs/artifacts/arm64/dtb/rockchip/rk3399-rock-4c-plus.dtb
 finalize:
   - from: /rootfs
     to: /

installers/rock4cplus/pkg.yaml

@@ -0,0 +1,25 @@
+name: rock4cplus
+variant: scratch
+shell: /toolchain/bin/bash
+dependencies:
+  - stage: base
+steps:
+  - env:
+      GOPATH: /go
+    cachePaths:
+      - /.cache/go-build
+      - /go/pkg
+    build:
+      - |
+        export PATH=${PATH}:${TOOLCHAIN}/go/bin
+
+        cd /pkg/src
+        CGO_ENABLED=0 go build -o ./rock4cplus .
+    install:
+      - |
+        mkdir -p /rootfs/installers/
+
+        cp /pkg/src/rock4cplus /rootfs/installers/rock4cplus
+finalize:
+  - from: /rootfs
+    to: /rootfs

installers/rock4cplus/src/go.mod

@@ -0,0 +1,11 @@
+module rock4cplus
+
+go 1.22.1
+
+require (
+	github.com/siderolabs/go-copy v0.1.0
+	github.com/siderolabs/talos/pkg/machinery v1.7.0-alpha.1
+	golang.org/x/sys v0.16.0
+)
+
+require gopkg.in/yaml.v3 v3.0.1 // indirect

installers/rock4cplus/src/go.sum

@@ -0,0 +1,10 @@
+github.com/siderolabs/go-copy v0.1.0 h1:OIWCtSg+rhOtnIZTpT31Gfpn17rv5kwJqQHG+QUEgC8=
+github.com/siderolabs/go-copy v0.1.0/go.mod h1:4bF2rZOZAR/ags/U4AVSpjFE5RPGdEeSkOq6yR9YOkU=
+github.com/siderolabs/talos/pkg/machinery v1.7.0-alpha.1 h1:0pURmnbzsu19reku8OjN1DkeAxgkmuxmKgDgbFT3228=
+github.com/siderolabs/talos/pkg/machinery v1.7.0-alpha.1/go.mod h1:H2+5QeGXYi2Q7RhBNUAD6dhc9LmdJ2AUXtiAWRXtWBc=
+golang.org/x/sys v0.16.0 h1:xWw16ngr6ZMtmxDyKyIgsE93KNKz5HKmMa3b8ALHidU=
+golang.org/x/sys v0.16.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

installers/rock4cplus/src/main.go

@@ -0,0 +1,84 @@
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+package main
+
+import (
+	_ "embed"
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"github.com/siderolabs/go-copy/copy"
+	"github.com/siderolabs/talos/pkg/machinery/overlay"
+	"github.com/siderolabs/talos/pkg/machinery/overlay/adapter"
+	"golang.org/x/sys/unix"
+)
+
+const (
+	off int64 = 512 * 64
+	// https://github.com/u-boot/u-boot/blob/abd4fb5ac13215733569925a06991e0a182ede14/configs/rock-4c-plus-rk3399_defconfig#L22
+	dtb = "rockchip/rk3399-rock-4c-plus.dtb"
+)
+
+func main() {
+	adapter.Execute(&rock4cplus{})
+}
+
+type rock4cplus struct{}
+
+type rock4cplusExtraOptions struct{}
+
+func (i *rock4cplus) GetOptions(extra rock4cplusExtraOptions) (overlay.Options, error) {
+	return overlay.Options{
+		Name: "rock4cplus",
+		KernelArgs: []string{
+			"console=tty0",
+			"console=ttyS2,1500000n8",
+			"sysctl.kernel.kexec_load_disabled=1",
+			"talos.dashboard.disabled=1",
+		},
+		PartitionOptions: overlay.PartitionOptions{
+			Offset: 2048 * 10,
+		},
+	}, nil
+}
+
+func (i *rock4cplus) Install(options overlay.InstallOptions[rockPi4cExtraOptions]) error {
+	var f *os.File
+
+	f, err := os.OpenFile(options.InstallDisk, os.O_RDWR|unix.O_CLOEXEC, 0o666)
+	if err != nil {
+		return fmt.Errorf("failed to open %s: %w", options.InstallDisk, err)
+	}
+
+	defer f.Close() //nolint:errcheck
+
+	uboot, err := os.ReadFile(filepath.Join(options.ArtifactsPath, "arm64/u-boot/rock4cplus/u-boot-rockchip.bin"))
+	if err != nil {
+		return err
+	}
+
+	if _, err = f.WriteAt(uboot, off); err != nil {
+		return err
+	}
+
+	// NB: In the case that the block device is a loopback device, we sync here
+	// to esure that the file is written before the loopback device is
+	// unmounted.
+	err = f.Sync()
+	if err != nil {
+		return err
+	}
+
+	src := filepath.Join(options.ArtifactsPath, "arm64/dtb", dtb)
+	dst := filepath.Join(options.MountPrefix, "/boot/EFI/dtb", dtb)
+
+	err = os.MkdirAll(filepath.Dir(dst), 0o600)
+	if err != nil {
+		return err
+	}
+
+	return copy.File(src, dst)
+}

profiles/pkg.yaml

@@ -9,3 +9,5 @@ finalize:
     to: /rootfs/profiles
   - from: /pkg/rockpi4c
     to: /rootfs/profiles
+  - from: /pkg/rock4cplus
+    to: /rootfs/profiles

profiles/rock4cplus/rockpi4c.yaml

@@ -0,0 +1,9 @@
+arch: arm64
+platform: metal
+secureboot: false
+output:
+  kind: image
+  outFormat: .xz
+  imageOptions:
+    diskSize: 1306525696
+    diskFormat: raw