Difference between revisions of "RockpiN10/dev/kernel-4.4"

Latest revision as of 03:27, 21 March 2020

    ROCK Pi N10 >  Development >  Build vendor kernel(Rockchip 4.4)

The vendor kernel is based on the Rockchip 4.4 kernel with hardware support for ROCK Pi N10. Below is how to build it on a X86 Linux host PC.

Get the kernel source

   git clone -b rk3399pro-toybrick-stable https://github.com/radxa/kernel.git
   cd kernel

Install toolchain from Linaro

   wget https://releases.linaro.org/components/toolchain/binaries/7.3-2018.05/aarch64-linux-gnu/gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu.tar.xz
   sudo tar xvf gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu.tar.xz  -C /usr/local/
   export ARCH=arm64
   export CROSS_COMPILE=/usr/local/gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-

Build kernel

   make rockchip_linux_defconfig

If you need to build kernel modules that are not in the default config, you can select it in menu config

   make menuconfig    #(optional)

Now build it

   make -j8

The built targets we are interested are arch/arm64/boot/Image and dtb file arch/arm64/boot/dts/rockchip/rk3399pro-rockpi-n10-linux.dtb and all the dtbo files in arch/arm64/boot/dts/rockchip/overlay

Build kernel deb package

The kernel package build can pack the kernel, device tree, modules and firmware into Debian packages, which makes it easier to install on the ROCK Pi N10.

First, setup the version number, make sure the format is right.

   export build_id="999"             # make sure it's big enough so that our kernel is the newest.
   export lv="-$build_id-rockchip"
   export kv=$(make kernelversion)
   export debv="$kv$lv"

   make  bindeb-pkg -j8    LOCALVERSION=$lv    KDEB_PKGVERSION=$debv

The generated packages are(the kernel revision name maybe different):

ls ../*.deb

../linux-firmware-image-4.4.167-999-rockchip-g8b7b311_4.4.167-999-rockchip_arm64.deb
../linux-headers-4.4.167-999-rockchip-g8b7b311_4.4.167-999-rockchip_arm64.deb
../linux-image-4.4.167-999-rockchip-g8b7b311_4.4.167-999-rockchip_arm64.deb
../linux-image-4.4.167-999-rockchip-g8b7b311-dbg_4.4.167-999-rockchip_arm64.deb
../linux-libc-dev_4.4.167-999-rockchip_arm64.deb

copy linux-image-4.4.167-999-rockchip-*_arm64.deb and linux-firmware-image-4.4.167-999-rockchip-*_arm64.deb to your ROCK Pi N10.

Install it on ROCK Pi N10.

   rockpiN10# dpkg -i linux-image-4.4.167-999-rockchip-*_arm64.deb linux-firmware-image-4.4.167-999-rockchip-*_arm64.deb

Reboot you will have the new kernel booting.