Device specific configuration to build AOSP Android 13 for Raspberry Pi 4.

Wiki:

• TODO

Issues:

• Android
• Linux kernel

How to build:

1. Establish Android build environment and install repo.

2. Install additional packages (TODO: possibly non-exhaustive):

sudo apt-get install bc coreutils dosfstools e2fsprogs fdisk kpartx mtools ninja-build
sudo snap install meson
pip3 install ply

3. Initialize repo:

repo init -u https://android.googlesource.com/platform/manifest -b android-13.0.0_r6
curl --create-dirs -L -o .repo/local_manifests/manifest_brcm_rpi4.xml -O -L https://raw.githubusercontent.com/raspberry-vanilla/android_local_manifest/android-13.0/manifest_brcm_rpi4.xml

You can also reduce download size by creating a shallow clone and removing unneeded projects (optional):

repo init -u https://android.googlesource.com/platform/manifest -b android-13.0.0_r6 --depth=1
curl --create-dirs -L -o .repo/local_manifests/remove_projects.xml -O -L https://raw.githubusercontent.com/raspberry-vanilla/android_local_manifest/android-13.0/remove_projects.xml

4. Sync source code:

repo sync

5. Compile:

. build/envsetup.sh
lunch aosp_rpi4-userdebug
make bootimage systemimage vendorimage -j$(nproc)

6. Make flashable image:

./rpi4-mkimg.sh

Also look into Linux kernel build instructions.