Android

Building Android

Fetching the code

Fetch the code using repo:

For Android 14 :

mkdir ~/src/ti-aosp-14 && cd $_
repo init -u https://gitlab.baylibre.com/baylibre/ti/android/aosp/manifest.git -b ti-android-14
repo sync

For Android master :

mkdir ~/src/ti-aosp-master && cd $_
repo init -u https://gitlab.baylibre.com/baylibre/ti/android/aosp/manifest.git -b ti-android-master
repo sync

For more information about repo, visit Android’s official documentation

Note

To save same disk space, pass the --clone-depth=1 option to repo init:

repo init -u https://gitlab.baylibre.com/baylibre/ti/android/aosp/manifest.git -b ti-android-14 --clone-depth=1

Setup

Refer to:

Build

For Android 14 :

cd ~/src/ti-aosp-14
source build/envsetup.sh
lunch LUNCH-TARGET
m

For Android master :

cd ~/src/ti-aosp-master
source build/envsetup.sh
# only am62x-userdebug is supported on master
lunch am62x-userdebug
m

Supported Lunch target:

Android lunch target	Android Variant
`am62x-userdebug`	Tablet Debug (AM62X)
`am62p-userdebug`	Tablet Debug (AM62P)
`am62x-user`	Tablet Release (AM62X)
`am62p-user`	Tablet Release (AM62P)
`am62x_car-userdebug`	Car Debug (AM62X)
`am62p_car-userdebug`	Car Debug (AM62P)
`am62x_car-user`	Car Release (AM62X)
`am62p_car-user`	Car Release (AM62P)

Build flags

It’s possible to customize the standard build (m), by passing build flags. For example, the following enables AVB on userdebug builds:

TARGET_AVB_ENABLE=true m

The following build flags are available. Default values are highlighted.

Flag	Possible values	Description
`TARGET_AVB_ENABLE`	false/true	Forces AVB feature on userdebug
`TARGET_ADB_USER_ENABLE`	false/true	Forces enable ADB on user builds (NOT for production builds)
`TARGET_SDCARD_BOOT`	false/true	Boot from SD card instead of eMMC
`TARGET_KERNEL_USE`	6.1/6.6	Pick kernel version. 6.6 is experimental
`TARGET_BOOTLOADER_VERSION`	unset/2024.04	Pick U-Boot version (default: `2023.04`). 2024.04 is experimental

Initial Flashing instructions

Initial flashing instructions differ per board.

For Beagle Play, see Beagle Play
For AM62x SK EVM and AM62x LP SK EVM, see AM62x SK EVM
For AM62p SK EVM, see: AM62p SK EVM

Flashing instructions

To reflash on a device which already has Android installed, run:

Reboot to U-Boot
```
adb reboot bootloader
```

Flash using the script: in a different terminal, change directory to out/target/product/am62x and run the flashall.sh script:

# for AM62x SK EVM (GP)
sudo ./flashall.sh --board am62x-sk

# for AM62x SK EVM (HS-FS)
sudo ./flashall.sh --board am62x-sk --hsfs

# for AM62x LP SK EVM (GP)
sudo ./flashall.sh --board am62x-lp-sk

# for AM62x LP SK EVM (HS-FS)
sudo ./flashall.sh --board am62x-lp-sk --hsfs

# for Beagle Play
sudo ./flashall.sh --board am625-beagleplay

# For AM62P SK EVM (HS-FS only: by default)
sudo ./flashall.sh --board am62px-sk

Note

You need to do this command in U-Boot console when TARGET_AVB_ENABLE=true:

setenv force_avb "1"; saveenv;

Reboot the board
```
fastboot reboot
```

Warning

If a SD card is present in the port, make sure to eject it before booting.