Device specific configuration to build AOSP Android 12 for Raspberry Pi 4.

---

How to build:

1. Establish Android build environment and install repo.

2. Install additional packages:

sudo apt-get install bc coreutils dosfstools e2fsprogs fdisk kpartx mtools ninja-build pkg-config python3-pip
sudo pip3 install meson mako jinja2 ply pyyaml

3. Initialize repo:

repo init -u https://android.googlesource.com/platform/manifest -b android-12.1.0_r22
curl --create-dirs -L -o .repo/local_manifests/manifest_brcm_rpi4.xml -O -L https://raw.githubusercontent.com/raspberry-vanilla/android_local_manifest/android-12.1/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-12.1.0_r22 --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-12.1/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.

---

Issues:

• Android
• Linux kernel

---

Wiki:

• Audio
• DSI display
• HDMI display
• Interfaces
• USB boot
• Video decoding