First commit (WIP)

src/make_kernel.sh

@@ -0,0 +1,73 @@
+#!/bin/bash
+
+set -e
+
+function usage {
+
+    cat <<EOF
+
+Compile Kernel for MNT Reform
+---
+This script compile Linux kernel for the MNT Reform2 laptop.
+
+USAGE:
+make_kernel.sh <version>
+
+<version> : kernel version to compile. This argument is not require if you
+define KERNEL_VERSION environment variable.
+EOF
+
+}
+
+function error {
+    >&2 printf "\e[31mE\e[0m %s\n" "$1"
+}
+
+export ARCH=arm64
+#export LOADADDR=0x40480000
+export CROSS_COMPILE=aarch64-linux-gnu-
+GIT_URL="https://github.com/torvalds/linux/"
+
+if [ ! -z $1 ]
+then
+    KERNEL_VERSION="$1"
+fi
+
+if [ -z "$KERNEL_VERSION" ]
+then
+    error "You need to define KERNEL_VERSION env variable"
+    usage
+    exit 10
+fi
+
+if [ ! -d linux ]
+then
+    printf "Cloning Linux...\n"
+    # temporary linux 5.11rc7 commit
+    if ! git clone --depth 1 --branch=v${KERNEL_VERSION} $GIT_URL
+    then
+        error "Can't clone Linux, check version"
+        exit 11
+    fi
+fi
+
+cp ./dts/*.dts ./linux/arch/arm64/boot/dts/freescale/
+cp ./kernel-config ./linux/.config
+
+cd linux
+
+for PATCHFILE in ../patches/*.patch
+do
+    printf "Apply patch %s\n" $PATCHFILE
+    if git apply --check $PATCHFILE
+    then
+        git apply $PATCHFILE
+    else
+        error "Kernel patch already applied or cannot apply: $PATCHFILE"
+    fi
+done
+
+make -j$(nproc) Image freescale/imx8mq-mnt-reform2.dtb freescale/imx8mq-mnt-reform2-hdmi.dtb
+cd ..
+
+exit 0