Android Q10 for imx8mm

Prerequisites

repo

Make sure that the necessary packages have been installed.

sudo apt-get install xz-utils make flex lib32z1 zip curl

Install repo tool:

mkdir ~/Android/{bin,}
curl https://storage.googleapis.com/git-repo-downloads/repo > ~/Android/bin/repo
chmod a+x ~/Android/bin/repo
export PATH=~/Android/bin:${PATH}

GCC

Download the tool chain for the A-profile architecture from arm Developer GNU-A Downloads page and deploy it in a directory on your discretion (hereafter /opt)

Recommended tool chain is gcc-arm-8.3-2019.03-x86_64-arm-eabi

export AARCH64_GCC_CROSS_COMPILE=/opt/gcc-arm-8.3-2019.03-x86_64-aarch64-elf/bin/aarch64-elf-
export AARCH32_GCC_CROSS_COMPILE=/opt/gcc-arm-8.3-2019.03-x86_64-arm-eabi/bin/arm-eabi-

Getting Android source code

NXP sources

• Download the NXP Android sources from this location: imx-android-10.0.0_2.5.0.tar.gz

• Untar the image:

  tar -C ~/Android -xf imx-android-10.0.0_2.5.0.tar.gz

• Download and setup source:

  source ~/Android/imx-android-10.0.0_2.5.0/imx_android_setup.sh
  export A=$(pwd)

• Follow the instructions in the ~/imx-android-10.0.0_2.5.0/README and make sure that the build environment is ready.

For more details see the NXP Android User Guide

CompuLab sources

• Clone the repository

  git clone https://github.com/compulab-yokneam/imx8mm-android-q10.git
  export C=$(pwd)/imx8mm-android-q10

Apply the patches

• U-boot

  git -C ${A}/vendor/nxp-opensource/uboot-imx checkout -b compulab-imx8-android android-10.0.0_2.5.0
  git -C ${A}/vendor/nxp-opensource/uboot-imx am ${C}/vendor/nxp-opensource/uboot-imx/*.patch

• ATF

  git -C ${A}/vendor/nxp-opensource/arm-trusted-firmware/ checkout -b compulab-imx8-android android-10.0.0_2.5.0
  git -C ${A}/vendor/nxp-opensource/arm-trusted-firmware am ${C}/vendor/nxp-opensource/arm-trusted-firmware/*.patch

• Kernel

  git -C ${A}/vendor/nxp-opensource/kernel_imx checkout -b compulab-imx8-android android-10.0.0_2.5.0
  git -C ${A}/vendor/nxp-opensource/kernel_imx am ${C}/vendor/nxp-opensource/kernel_imx/*.patch
  

• Board

  git -C ${A}/device/fsl checkout -b compulab-imx8-android android-10.0.0_2.5.0
  git -C ${A}/device/fsl am ${C}/device/fsl/*.patch

• Peripherals

  git -C ${A}/hardware/broadcom/libbt checkout -b compulab-imx8-android android-10.0.0_2.5.0
  git -C ${A}/hardware/broadcom/libbt am ${C}/hardware/broadcom/libbt/*.patch

Set a desired machine configuration:

export MACHINE=ucm_imx8m_mini SOC=imx8mm

Build Android

• Go to Android build directory and issue:

  cd ${A}
  source build/envsetup.sh
  lunch ${MACHINE}-eng
  ./imx-make.sh -j16 2>&1 | tee build-log.txt

Create a bootable SD-card

• Use a uSD card reader and a uSD сard. Any commercially available micro-SD card of 16GB+ may be used for the installation.

• Plug the USB SD card reader into the host PC. Insert the micro-SD сard into the сard reader. From now we assume the device name of the MMC/SD card on your Linux PC is /dev/sdX.

• Prepare the uSD card:

  sudo dd if=/dev/zero bs=1M count=16 of=/dev/sdX
  sudo partprobe /dev/sdx

• In the Android build directory issue the following commands:

  export MACHINE=ucm_imx8m_mini SOC=imx8mm
  cd out/target/product/${MACHINE}
  sudo ./fsl-sdcard-partition.sh -f ${SOC} /dev/sdX

What's next?

Boot Android using the uSD card as described here Boot from the SD-card

Known issues:

• Wi-Fi interface is disabled in GUI