Rock/Android Build
Contents
Before start
Building AOSP(Android Open Source Project) for radxa rock is a huge task, it takes a lot of time and disk space. You can read the detail requirement of the machine on AOSP requirement page. The recommend building OS is Ubuntu 12.04 64bit. It takes about 35 minutes and 30G disk space on a intel 4770 processor(i7, quad core, 3.4Ghz) machine with 16G ram and SSD.
Initializing a Build Environment
- Refer instructions from Google. Below is what we tested and set up the environment.
Install JDK
sudo add-apt-repository ppa:webupd8team/java sudo apt-get update sudo apt-get install oracle-java6-installer Note if the sdk is android5.x you should install java 7 as below sudo apt-get install openjdk-7-jdk
Install required packages - ubuntu 12.04
sudo apt-get install git gnupg flex bison gperf build-essential \ zip curl libc6-dev libncurses5-dev:i386 x11proto-core-dev \ libx11-dev:i386 libreadline6-dev:i386 libgl1-mesa-glx:i386 \ g++-multilib mingw32 tofrodos gcc-multilib ia32-libs\ python-markdown libxml2-utils xsltproc zlib1g-dev:i386
Install required packages - ubuntu 13.10 and 14.04
sudo apt-get install git-core gnupg flex bison gperf libsdl1.2-dev\ libesd0-dev libwxgtk2.8-dev squashfs-tools build-essential zip curl\ libncurses5-dev zlib1g-dev pngcrush schedtool libxml2 libxml2-utils\ xsltproc lzop libc6-dev schedtool g++-multilib lib32z1-dev lib32ncurses5-dev\ lib32readline-gplv2-dev gcc-multilib libswitch-perl
Install ARM toolchain and building kernel related pacakges
sudo apt-get install lzop libncurses5-dev
Install libraries for other tools
sudo apt-get install libssl1.0.0 libssl-dev
Get the source code
Git clone from the linux-rockchip mirror servers. (git.us.linux-rockchip.org is located at U.S.A.)
For android 4.2.2 Jelly Bean (rock)
git clone -b radxa/radxa-dev http://git.us.linux-rockchip.org/rk3188_r-box_android4.2.2_sdk
For android 4.2.2 Jelly Bean (rock pro)
git clone -b radxa/radxa-dev-rock_pro http://git.us.linux-rockchip.org/rk3188_r-box_android4.2.2_sdk
For android 4.4.2 KitKat (rock pro & rock lite)
Download from Mega radxa_rock_android4-4_141219.tar.gz
Note: After unzip the file please run git checkout . to get the code
Build the kernel
cd kernel make rk3188_radxa_rock_defconfig #Use this config If you build the android 4.2 JB image for radxa rock make rk3188_radxa_rock_kitkat_defconfig #Use this config If you build the android 4.4 KK image for radxa rock make rk3188_box_radxa_rock_pro_hdmi_defconfig #Use this config if you build the android 4.4 KK image for radxa rock pro make rk3188_box_radxa_rock_lite_hdmi_defconfig #Use this config if you build the android 4.4 KK image for radxa rock lite make kernel.img #kernel.img is the normal kernel image with rockchip crc cd ..
note: if you want to build android sdcard image for rock pro, you need to run make menuconfig and go to Device Drivers ---> MMC/SD/SDIO card support, and disable RK29 SDMMC0 controller support(sdmmc), for rock lite the sdmmc0 driver is already disabled in defconfig.
Build android source code
source build/envsetup.sh lunch rk31sdk-eng #Launch this config if you build android 4.2 JB for radxa rock lunch radxa_rock-eng #Launch this config if you build android 4.4.2 KK for radxa rock lunch radxa_rock_pro-eng #Launch this config if you build android 4.4.2 KK for radxa rock pro lunch radxa_rock_lite-eng #Launch this config if you build android 4.4.2 KK for radxa rock lite make -j8
Generate the image
./mkimage.sh ota
you will get boot.img recovery.img system.img under rockdev/Image, and update.img under rockdev
generate the image for sdcard(optional)
cd rockdev && ./mksdimge.sh
android_xx-xx-x_sdcard.img is the generated image for sd card.
Note： How to write the image on sdcard, you can refer to http://radxa.com/Rock/SD_images , You can't use SD_Firmware_Tool._v1.43.zip
Flash the image
Next, follow the flash to NAND flash to flash the image to NADN flash you just build. Or follow flash to sd card to write the image on sd card.