Robert Foss
May 02, 2019
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Let's get Android running next to Wayland on an i.MX6 based Nitrogen6_MAX board.
A previous post introduced the SPURV Android compatibility layer for Wayland based Linux environment.
In this post, we're going to dig into how you can run an Android application on the very common i.MX6 based Nitrogen6_MAX board from Boundary Devices.
sudo apt install \
apt-transport-https \
bmap-tools \
ca-certificates \
curl \
git \
gnupg2 \
repo \
software-properties-common \
u-boot-tools \
qemu-kvm
Docker is needed for generating the Debian root filesystem later on.
# Install Docker
curl -fsSL https://download.docker.com/linux/debian/gpg | sudo apt-key add -
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/debian $(lsb_release -cs) stable"
sudo apt update
sudo apt install docker-ce
# Set up privileges for Docker
sudo usermod -aG docker ${USER}
su - ${USER}
# Fetch Docker image
docker pull godebos/debos:latest
For building Android we've chosen to target version 9.0.0_r10, but this is mostly in order to ensure that these instructions remain correct going forward. This work should all be viable for later versions of Android too.
mkdir android; cd android repo init -u https://android.googlesource.com/platform/manifest -b android-9.0.0_r10 git clone https://gitlab.collabora.com/spurv/android_manifest.git .repo/local_manifests/ repo sync -j15 . build/envsetup.sh lunch spurv-eng make -j12 cd ..
We're using a kernel branch which is very close to upstream modulo one or two patches. The kernel we're going to build will be targeting i.MX 6 & 7 series SOCs.
git clone https://gitlab.collabora.com/spurv/linux.git -b android-container_v5.1-rc5 cd linux sh ../android/device/freedesktop/spurv/build-kernel.sh cd ..
Just a kernel does not make an OS, so we're using Debian as a base. The way we're going to create the root filesystem is using debos, which is a tool for creating Debian based OS images. You can learn more about it here.
Now we're ready to integrate all of the above into one coherent image. This is where the Nitrogen6_MAX devboard targeting comes in.
git clone https://gitlab.collabora.com/spurv/debos.git sudo debos/build_image.sh -b /dev/mmcblk0
The platform specific parts are contained in uboot_nitrogen6qp-max.scr and build_image.sh.
Pop the flashed SD-card into your device and restart it, and then log in as root/root.
In order to start Android, run one of these two commands:
# Launch Weston and an Android application /home/aosp/run.sh
Starting the Android application might take a minute or two, but Weston should start immediately.
A lot of different contributors enabled this work, both directly and indirectly.
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Comments (11)
piec:
May 05, 2019 at 12:14 PM
Great work
Typo: I think the git url should be "https://gitlab.collabora.com/spurv/debos/" in the "Create & flash root filesystem" paragraph
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Robert Foss:
May 06, 2019 at 04:07 PM
Hey piec,
You are very right, fixing it now!
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Andy KIm:
Jul 08, 2019 at 07:12 AM
I want to know why 2 drm driver is needed?
Does both imx-drm and etnaviv need for what?
Eg. imx-drm is for Android and etnaviv is for weston.
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Andy Kim:
Jul 10, 2019 at 03:33 AM
I want to know why 2 drm drivers(imx-drm and etnaviv) is needed?
Is only etnaviv not enough?
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Robert Foss:
Jul 16, 2019 at 03:49 PM
Hey Andy,
Those are drivers for two different things. imx-drm is the display controller, and etnaviv the gpu.
Those are different parts and are not always shipped together.
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Chris:
Dec 01, 2019 at 11:47 AM
What's the viability of running this on a Jetson nano. Se ems like that would be a good platform considering it's basically a slimmed down Nvidia shield.
Also is opengl an option?
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Robert Foss:
Dec 02, 2019 at 03:00 PM
Hey Chris,
I'm not an expert on the NVidia proprietary driver, but I would think that it's possible to run SPURV on top of a Jetson board.
Thanks for the Question.
/Rob.
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Chris:
Dec 02, 2019 at 07:20 PM
Thank you,
The Jetson nano has decent support for wayland.
The build instructions and sources you have provided seem very specific to the imx6 platform.
Is there any way you could provide basic instructions on what would be required to add support for a different platform.
For example kernel configuration setting's that are required. I know that with Anbox, Ashmem and binder need to be enabled in the kernel.
Would the aosp build need to be modified in any way or does most of the platform specific configuration rest in the linux rootfs and the kernel.
And Is it possible to only build aosp and the container on top of a standard stock arm64 based ubuntu / debian installation.
a generic guide to port spurv to other arm/arm64 based platforms would be a lovely thing to have.
Thanks for your help.
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Robert Foss:
Dec 02, 2019 at 08:13 PM
> The build instructions and sources you have provided seem very specific to the imx6 platform.
Yeah, that's the platform we were targeting.
> Is there any way you could provide basic instructions on what would be required to add support for a different platform.
Not really at this point.
> For example kernel configuration setting's that are required. I know that with Anbox, Ashmem and binder need to be enabled in the kernel.
The kernel should probably use the android-base defconfig: https://source.android.com/devices/architecture/kernel/config
>Would the aosp build need to be modified in any way or does most of the platform specific configuration rest in the linux rootfs and the kernel.
The AOSP repos we've used and published in the posts have some modifications and need to be used.
> And Is it possible to only build aosp and the container on top of a standard stock arm64 based ubuntu / debian installation.
Yes, but it won't run. You need the appropriate kconfig options for the kernel, and AOSP from the repos we published to work around some issues.
> a generic guide to port spurv to other arm/arm64 based platforms would be a lovely thing to have.
I agree, at this moment it isn't something that we're working on.
> Thanks for your help.
You are welcome ;)
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Sachio Horie:
Apr 11, 2020 at 02:53 AM
Nitrogen6_MAX has a UART, Can this case use UART and other connectivity ports?, so my app uses UART.
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Daniel Stone:
Apr 13, 2020 at 01:00 PM
Yes, all the UARTs are available as userspace devices.
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