DART-SD410 Android LL 1 1

DART-SD410 Android-LL-5.1.1 Developers Guide

Introduction

This WIKI describes how to build and deploy Android Lollipop Lollipop-5-1-1 on the DART-SD410. It is based on Qualcomm Android-LL-5.1.1.

Overview

The objective of this document is to guide DART-SD410 Android developers to obtain Android Lollipop sources, setting up host environment, compilation and deployment.

This document contains instructions for:

• Hardware and software requirements.
• Setup the hardware.
• Setup the toolchain.
• Download & build the sources.
• Install the binaries on the DART-SD410 SOM.

Document Reference

This release is based on Qualcomm APQ8016_410C_LA.BR.1.2.4-01810-8x16.0_5.1.1_Lollipop_P2 release. Please refer to Qualcomm Developer Network before you start building.

Supported hardware and features

Feature	Description
SOM support	DART-SD410
Carrier Board support	VAR-DT410CustomBoard
CPU	Qualcomm - Snapdragon 410
Resque Image	Resque Images set can be downloaded from FTP
eMMC	up to 16GB
DDR size support configuration	Up to 2G LPDDR3
SD-Card	+
Wired Network	10/100 Mbps Ethernet
Wireless Network	802.11abg AP, & Wi-Fi
Bluetooth	+
SPI	+
I2C	+
USB OTG	Host and Device
Uarts	x2
RTC	+
Display	HDMI: 1080P (On board DSI-to-HSMI bridge, 800x480 resolution) LVDS (On board DSI-to-LVDS bridge, 800x480 resolution)
Audio	Line In & Line out Mono Speaker Audio over HDMI
Camera	IMX135 camera sensor. Board can be ordered separately at : sales@variscite.com

Hardware Requirements

DART-SD410 evaluation kit.

Please refer to Host requirements installation.

Obtain Variscite's BSP

Please download Android Board Support Package file from Variscite's FTP site.
Contact Variscite support for FTP credentials.

Unpack Variscite's Android Release Package

$ mkdir ~/dart-sd410
$ cd ~/dart-sd410
$ unzip ~/Downloads/variscite_bsp_vla.br_.1.2.4-01810-8x16.0-3.zip
$ cd source/

Download and Build Android Images

The following commands will download the full Android release from different Git repositories and build the Android images. It may take a very long time depending on Internel connection, Build machine, and remote servers. The process may fail fetching the repositories, in this case it can be started again.

$ chmod +x SD410c_build.sh
The file SD410c_build.sh can be edited and parameter $BUILD_MACHINE changed to follow the build machine. 
The best setting is number of threads of the CPU minus 2.
$ ./SD410c_build.sh
The build system will ask for credentials for repo initialization.

Rebuild Android Image

To rebuild the Android run:

$ source build/envsetup.sh 
$ lunch msm8916_64-userdebug 
$ make -j8 WITH_DEXPREOPT=true WITH_DEXPREOPT_PIC=true DEX_PREOPT_DEFAULT=nostripping | tee log.txt

You can change the number of build threads (-j parameter) to a better number to make the build faster.

Flashing newly built images

The build process creates an out directory and puts all images in the following directory:
/out/target/product/msm8916_64/
The following image files are created:
emmc_appsboot.mbn - little kernel (uboot)
boot.img - kernel and dtb files
system.img - system folder
The images can be flashed one by one via fastboot.
In order to enter fastboot mode cycle the power or press Reset key with Back key pressed.

To flash the whole system

$ cd out/target/product/msm8916_64/
$ sudo fastboot flash aboot emmc_appsboot.mbn
$ sudo fastboot flash persist persist.img
$ sudo fastboot flash userdata userdata.img
$ sudo fastboot flash system system.img
$ sudo fastboot flash recovery recovery.img
$ sudo fastboot flash boot boot.img

To flash kernel and dtbs

Sometimes the changes are done only to the android kernel, in this case there is no need to flash the whole system.
The kernel and dtb files are located in boot.img file.
Flashing it is enough

$ cd out/target/product/msm8916_64/
$ sudo fastboot flash boot boot.img

To flash little kernel

Sometimes the changes are done only to the bootloader, in this case there is no need to flash the whole system.
The little kernel is located in emmc_appsboot.mbn file.
Flashing it is enough

$ cd out/target/product/msm8916_64/
$ sudo fastboot flash aboot emmc_appsboot.mbn

Adding Applications

Adding Broswer

• Download Browser.zip file from Variscite's FTP site into ~/dart-sd410/source/ directory.
  
• The file is located in dart-sd410/Software/Android/AdditionalPackages/ FTP directory
  
• Extract the downloaded file into your android directory

$ cd ~/dart-sd410/source/
$ unzip Browser.zip

• Build the Android
• Flash the new Android into the board by fastboot

Adding GPS Test

• Download GPSTest.zip file from Variscite's FTP site into ~/dart-sd410/source/ directory.
  
• The file is located in dart-sd410/Software/Android/AdditionalPackages/ FTP directory
  
• Extract the downloaded file into your android directory

$ cd ~/dart-sd410/source/
$ unzip GPSTest.zip

• Add the new package into your board configuration

$ gedit ./APQ8016_410C_LA.BR.1.2.4-01810-8x16.0_5.1.1_Lollipop_P2/device/qcom/msm8916_64/msm8916_64.mk

locate the following lines:

PRODUCT_PACKAGES += \
libqcomvisualizer \
libqcompostprocbundle \
libqcomvoiceprocessing

Add a new package to the PRODUCT_PACKAGES

PRODUCT_PACKAGES += \
libqcomvisualizer \
libqcompostprocbundle \
libqcomvoiceprocessing \
GPSTest

Save the file and exit gedit

• Build the Android
• Flash the new Android into the board by fastboot

Adding Geekbench

Follow the same procedure as for GPSTest to add Geekbench into your image file.

Troubleshoot

If something goes wrong check the following:

• The downloaded files should be extracted into packages/apps/ directory verify that the new directory exists
• Verify that the build process rebuilds the system.img image
• Verify that the fastboot burns the system.img into system partition succsessfully

Customizing hardware

The DART-SD410 hardware customization should be done by changing DTS files.
This article is very helpful for reading about the DTS files.
The VAR-SD410CustmoBoard DTS files are located in kernel/arch/arm/boot/dts/qcom/ folder. The DTS file tree is:

apq8016-var-sd410.dts
└── apq8016-var-sd410.dtsi
    ├── apq8016-camera-sensor-var-sd410.dtsi
    ├── dsi-panel-var-sd410.dtsi
    └── apq8016-dart.dtsi
        ├── msm8916-pinctrl.dtsi
        └── msm8916.dtsi
            ├── skeleton64.dtsi
            ├── msm8916-coresight.dtsi
            ├── msm8916-smp2p.dtsi
            ├── msm8916-pinctrl.dtsi
            ├── msm8916-ipcrouter.dtsi
            ├── msm-gdsc-8916.dtsi
            ├── msm8916-iommu.dtsi
            ├── msm8916-gpu.dtsi
            ├── msm8916-mdss.dtsi
            │   ├── dsi-panel-sim-video.dtsi
            │   └── dsi-panel-sim-cmd.dtsi
            ├── msm8916-mdss-pll.dtsi
            ├── msm8916-iommu-domains.dtsi
            ├── msm8916-bus.dtsi
            ├── msm8916-camera.dtsi
            ├── msm-pm8916-rpm-regulator.dtsi
            ├── msm-pm8916.dtsi
            ├── msm8916-regulator.dtsi
            └── msm8916-pm.dtsi