First commit

Dockerfile

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+FROM debian:bullseye-slim
+
+RUN apt update \
+    && apt install -y --no-install-recommends \
+                      gcc-aarch64-linux-gnu \
+                      device-tree-compiler \
+                      make \
+                      bc \
+                      build-essential \
+                      bison \
+                      flex \
+                      bash \
+                      git \
+                      ca-certificates
+
+COPY docker/entrypoint.sh /tmp
+COPY src/ /tmp
+WORKDIR /tmp
+CMD /tmp/entrypoint.sh

README.md

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+u-boot for MNT Reform build script
+----------------------------------
+
+Work in progress script for building uboot for the MNT Refom 2 computer.
+
+## Howto
+
+To compile the script, you'll need to install some packages. On Debian :
+
+```
+apt install -y --no-install-recommends gcc-aarch64-linux-gnu \
+                      device-tree-compiler \ 
+                      make \
+                      bc \
+                      build-essential \
+                      bison \
+                      flex \
+                      bash \
+                      git \
+                      ca-certificates
+```
+
+You just need to launch `make_uboot.sh`. By default, script build uboot with
+sdcard support. to build it with emmc support you need to pass the `emmc`
+argument:
+
+```
+./make_uboot.sh emmc
+```
+
+You can also define `UBOOT_BUILD` environment variable with `emmc` or `sdcard`
+variable.
+
+The `flash.bin` is located in the `u-boot/` directory.
+
+## Build with docker
+
+Build the image :
+
+```
+docker build -t reform_kernel_build .
+```
+
+Then run the container with  with a directory mapped to `/output`:
+
+```
+docker run -v /home/docker/output:/output --env UBOOT_BUILD=sdcard --rm reform_kernel_build
+```
+
+You could pass the  `UBOOT_BUILD` environment variable to your container do tell
+`make_uboot.sh` which version to compile :
+
+ * `sdcard` or not defined if you'll install to the SDCard
+ * `emmc` for the internal memomry of the IMX card
+
+Flash.bin file will be in the directory mapped to `/output` in the
+container.
+
+## Licence
+
+This work is derivated from MNT script found [here][l_mnt_image] and licenced
+under the GPLv3 Licence
+
+[l_mnt_image]:https://source.mnt.re/reform/reform-system-image/

docker/entrypoint.sh

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+#!/bin/bash
+
+# Entrypoint for reform-build-kernel docker image
+
+if [ -f /output/flash.bin ]
+then
+    printf "Kernel image exist in destination aborting compilation.\n"
+    exit 0
+fi
+
+if ./make_uboot.sh
+then
+    cp u-boot/flash.bin /output/flash.bin
+else
+    printf "Error when building uBoot\n" >&2
+    exit 10
+fi
+exit 0

src/make_uboot.sh

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+#!/bin/bash
+
+set -e
+
+function usage {
+
+    cat <<EOF
+
+Compile uboot for MNT Reform
+---
+This script compile uboot for the MNT Reform2 laptop.
+
+USAGE:
+make_uboot.sh <target>
+
+where <target> can be:
+
+ sdcard: build uboot for sdcard (default)
+ emmc: build uboot for emmc
+
+The <target> arguments can be replaced by UBOOT_BUILD environment variable
+
+EOF
+
+}
+
+function error {
+    >&2 printf "\e[31mE\e[0m %s\n" "$1"
+}
+
+export ARCH=arm64
+export CROSS_COMPILE=aarch64-linux-gnu-
+GIT_URL="https://source.mnt.re/reform/reform-boundary-uboot"
+
+
+
+if [ -n "$1" ]
+then
+    UBOOT_BUILD="$1"
+fi
+
+if [ -z "$UBOOT_BUILD" ]
+then
+    UBOOT_BUILD="sdcard"
+fi
+
+if [ ! -d u-boot ]
+then
+    printf "Cloning uboot form MNTMN repo...\n"
+    if ! git clone --depth 1  "$GIT_URL" u-boot
+    then
+        error "Can't clone uboot from MNT, check version"
+        exit 11
+    fi
+fi
+
+cp u-boot/mntreform-config u-boot/.config
+
+cd u-boot
+
+case $UBOOT_BUILD in
+    " emmc")
+        make -j$(nproc) flash.bin KCPPFLAGS='-DMNTREFORM_BOOT_EMMC'
+         ;;
+    "sdcard")
+        make -j$(nproc) flash.bin
+         ;;
+    *)
+        error "${UBOOT_BUILD} is not a valid option"
+esac
+cd ..
+
+exit 0