NXP Semiconductors ASUG Скачать руководство пользователя страница 1

1 Overview

This document describes how to build Android Pie 9.0 platform for the i.MX 8
series devices. It provides instructions for:

• Configuring a Linux

®

 OS build machine.

• Downloading, patching, and building the software components that create

the Android

 system image.

• Building from sources and using pre-built images.
• Copying the images to boot media.
• Hardware/software configurations for programming the boot media and

running the images.

For more information about building the Android platform, see 

source.android.com/source/building.html

.

2 Preparation

2.1 Setting up your computer

To build the Android source files, use a computer running the Linux OS. The Ubuntu 16.04 64-bit version and openjdk-8-jdk is
the most tested environment for the Android Pie 9.0 build.
After installing the computer running Linux OS, check whether all the necessary packages are installed for an Android build. See
"Setting up your machine" on the Android website 

source.android.com/source/initializing.html

.

In addition to the packages requested on the Android website, the following packages are also needed:

$ sudo apt-get install uuid uuid-dev
$ sudo apt-get install zlib1g-dev liblz-dev
$ sudo apt-get install liblzo2-2 liblzo2-dev
$ sudo apt-get install lzop
$ sudo apt-get install git-core curl
$ sudo apt-get install u-boot-tools
$ sudo apt-get install mtd-utils
$ sudo apt-get install android-tools-fsutils
$ sudo apt-get install openjdk-8-jdk
$ sudo apt-get install device-tree-compiler
$ sudo apt-get install gdisk
$ sudo apt-get install m4
$ sudo apt-get install libz-dev

Contents

1 Overview................................................1
2 Preparation............................................ 1
3 Building the Android platform for i.MX... 2
4 Running the Android Platform with a

Prebuilt Image..................................... 7

5 Programming Images............................ 9
6 Booting.................................................13
7 Over-The-Air (OTA) Update.................17
8 Customized Configuration................... 21
9 Revision History...................................30

ASUG

Android

 User's Guide

Rev. P9.0.0_2.3.2 — 6 March 2020

User's Guide

Содержание ASUG

Страница 1: ...the necessary packages are installed for an Android build See Setting up your machine on the Android website source android com source initializing html In addition to the packages requested on the A...

Страница 2: ...bin curl https storage googleapis com git repo downloads repo bin repo chmod a x bin repo export PATH PATH bin source imx p9 0 0_2 3 2 imx_android_setup sh By default the imx_android_setup sh script...

Страница 3: ...uild_id mk in your MY_ANDROID directory For details see the Android Frequently Asked Questions The following outputs are generated by default in MY_ANDROID out target product evk_8mn root root file sy...

Страница 4: ...ing a kernel image To build boot img see Building boot img To build dtbo img see Building dtbo img NOTE 3 2 1 Configuration examples of building i MX devices The following table shows examples of usin...

Страница 5: ...ccess and debuggability preferred for debugging Installs modules tagged with debug ro debuggable 1 adb is enabled by default There are two methods for the build of Android image Method 1 Set the envir...

Страница 6: ...uild envsetup sh lunch evk_8mn userdebug make bootloader j4 For other platforms use lunch buildName buildType to set up the build configuration For detailed build configuration see Section 3 2 Buildin...

Страница 7: ...the Android Platform with a Prebuilt Image Table 6 Image packages Image package Description android_p9 0 0_2 3 2_image_8mnevk tar gz Prebuilt image for i MX 8M Nano EVK board which includes NXP extend...

Страница 8: ...no EVK board to support MIPI panel output rpmb_key_test bin Prebuilt test RPMB key which can be used to set the RPMB key as fixed 32 bytes 0x00 testkey_public_rsa4096 bin Prebuilt AVB public key which...

Страница 9: ...vices on the development system MMC SD must be programmed with the U Boot boot loader The i MX 8 series boot process determines what storage device to access based on the switch settings When the boot...

Страница 10: ...img format a kernel recovery ramdisk boot img 4 boot_b Follow boot_a 48 MB boot img format a kernel recovery ramdisk boot img 5 system_a Follow boot_b 2560 MB EXT4 Mount as system Android system file...

Страница 11: ...each Linux PC Unmount all the SD card partitions before running the script Put related bootloader boot image system image and vbmeta image in your current directory This script needs simg2img tool to...

Страница 12: ...on table img default If it is set to 7 use partition table 7GB img for 8 GB SD card If it is set to 14 use partition table 14GB img for 16 GB SD card If it is set to 28 use partition table 28GB img fo...

Страница 13: ...ngs Boot mode switch SW1101 from 1 4 bit eMMC boot 0100 To boot from SD change the board Boot_Mode switch to SW1101 1100 from 1 4 bit To boot from eMMC change the board Boot_Mode switch to SW1101 0100...

Страница 14: ...such as U Boot environments kernel command line and DM verity configuartions 6 2 1 U Boot environment bootcmd the first variable to run after U Boot boot bootargs the kernel command line which the bo...

Страница 15: ...annot be large than 1184 MB as teh Cortex M4 core will also allocate memory from CMA and Cortex M4 cannot use the memory large than 0xDFFFFFFFF androidboot selinux Argument to disable selinux check an...

Страница 16: ...To configure fps change this value to 480p60 480p50 480p30 The system will find out and work at the best display mode and display mode can be changed through this bootargs androidboot fbTileSupport I...

Страница 17: ...a Boot up the device b Choose Settings Developer Options OEM Unlocking to enable OEM unlocking c Execute the following command on the target side to make the board enter fastboot mode reboot bootload...

Страница 18: ...often very similar to their previous versions so the package only needs to contain encoding of the differences between the two files You can install the incremental update package only on a device tha...

Страница 19: ...ad bin to board s sdcard dir adb push payload bin sdcard 3 Cat the content of payload_properties txt like this FILE_HASH 0fSBbXonyTjaAzMpwTBgM9AVtlBeyOigpCCgkoOfHKY FILE_SIZE 379074366 METADATA_HASH I...

Страница 20: ..._ota_folder content is like this Make sure that you have at least 6 files as follows in server_ota_folder or the OTA application will be aborted build server var www evk_8mn_pie_9 ls build prop build_...

Страница 21: ...ay be many DTS for one board For example in MY_ANDROID device fsl imx8m evk_8mn BoardConfig mk TARGET_BOARD_DTS_CONFIG imx8mn fsl imx8mn ddr4 evk trusty dtb TARGET_BOARD_DTS_CONFIG imx8mn mipi panel f...

Страница 22: ...camera media_profiles_1080p xml Maximum to 1080P 30FPS and 8 Mbps for recording video Maximum to 720P 30FPS and 3 Mbps for recording video media_profiles_720p xml Maximum to 720P 30FPS and 3 Mbps for...

Страница 23: ...8m aiy_8mq init rc For the i MX 8QuadXPlus MEK board the source folder is MY_ANDROID device fsl imx8q mek_8q init rc NOTE 8 5 How to enable low power audio The DirectAudioPlayer application is provide...

Страница 24: ...id Quick Start Guide AQSUG DirectAudioPlayer supports limited audio files which is declared in device s audio_policy_configuration xml with AUDIO_OUTPUT_FLAG_DIRECT AUDIO_OUTPUT_FLAG_HW_AV_SYNC flag O...

Страница 25: ...t from i MX 8QuadXPlus VPU output To achieve the best performance of video playback take the following methods to accelerate the video playback through i MX 8QuadXPlus DPU Enable it by the default dev...

Страница 26: ...wnload the corresponding version SCFW from here L4 14 98_2 0 1_SCFWKIT 1 2 2 5 Unzip the porting kit and SCFW for i MX 8QuadXPlus imx scfw porting kit bin cd imx scfw porting kit src tar xf scfw_expor...

Страница 27: ...the specified RPMB key or random RPMB key The RPMB key cannot be changed once it is set To set a specified RPMB key perform the following operations Make your board enter fastboot mode Execute the co...

Страница 28: ...a_keygen_bits 4096 outform PEM out test_rsa4096_private pem The public key can be extracted from the private key The avbtool in MY_ANDROID external avb supports such commands You can get the public ke...

Страница 29: ...attestation keybox which contains private keys RSA and ECDSA and the corresponding certificate chains to partners from the Android Partner Front End APFE After retrieving the keybox from Google you n...

Страница 30: ...2 0 0 ga 04 2019 i MX 8M i MX 8QuadMax and i MX 8QuadXPlus GA release P9 0 0_2 3 0 08 2019 i MX 8M Mini i MX 8M Quad i MX 8M Nano and i MX 8QuadXPlus Alpha release P9 0 0_2 3 2 02 2020 i MX 8M Nano i...

Страница 31: ...e design and operating safeguards to minimize the risks associated with their applications and products NXP the NXP logo NXP SECURE CONNECTIONS FOR A SMARTER WORLD COOLFLUX EMBRACE GREENCHIP HITAG I2C...

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