You can refer to the following repos based on aosp4.2.2 and allwinner A31 
https://docs.google.com/a/mozilla.com/document/d/1-SL_YsVzPkRybw-1FyiVWpMuxSWSjig3gzID11VPMRE/edit
 
1. https://bitbucket.org/thomastsai/a31-b2g 
branch:aosp-4.2.2 
2. https://bitbucket.org/thomastsai/a31-b2g-manifest 
branch:aosp-4.2.2 
3. https://bitbucket.org/thomastsai/a31-platform-build 
But you can't get the whole repos for allwinner's proprietary patch. 

Instead, Based on Nexus4 jb4.2.2: 
1.$ git clone [email protected]:thomastsai/a31-b2g.git -b nexus-4-jb4.2.2_r1 
2.$./config.sh nexus-4 
3../build.sh 
You will have whole nexus4 jb4.2.2. 

Best Regards, 
Thomas Tsai 
----- Original Message -----

From: "sriakhil gogineni" <[email protected]> 
To: [email protected] 
Sent: Friday, October 18, 2013 4:40:48 AM 
Subject: [b2g] Port B2G to an Allwinner A20 device 

Hi I'm trying to port B2G to an Allwinner A20 device. 

I've taken a look at the following: 

https://wiki.mozilla.org/B2G/Porting 
https://developer.mozilla.org/en-US/docs/Mozilla/Firefox_OS/Porting 

I currently have a working Android 4.2.2 build tree and can produce working 
boot.img, system.img, and recovery.img to flash onto the device. 

For porting B2G to this device: 
I have: 
- taken the manifest.xml from the Android 4.2.2 build and added the b2g and 
gaia repos. 
- copied the device tree (device/softwinner/{device,device-common,etc..}) into 
the B2G folder. 
- Run ./repo sync 
- Added the manifest to ./configure.sh and ran it successfully 


Now attempting to run: ./build.sh -- I'm encountering the following build 
error: 

============================================ 
build/core/base_rules.mk:82: *** Module name: bionic-unit-tests 
build/core/base_rules.mk:83: *** Makefile location: bionic/tests 
build/core/base_rules.mk:84: * 
build/core/base_rules.mk:85: * Each module must use a LOCAL_MODULE_TAGS in its 
build/core/base_rules.mk:86: * Android.mk. Possible tags declared by a module: 
build/core/base_rules.mk:87: * 
build/core/base_rules.mk:88: * optional, debug, eng, tests, samples 
build/core/base_rules.mk:89: * 
build/core/base_rules.mk:90: * If the module is expected to be in all builds 
build/core/base_rules.mk:91: * of a product, then it should use the 
build/core/base_rules.mk:92: * "optional" tag: 
build/core/base_rules.mk:93: * 
build/core/base_rules.mk:94: * Add "LOCAL_MODULE_TAGS := optional" in the 
build/core/base_rules.mk:95: * Android.mk for the affected module, and add 
build/core/base_rules.mk:96: * the LOCAL_MODULE value for that component 
build/core/base_rules.mk:97: * into the PRODUCT_PACKAGES section of product 
build/core/base_rules.mk:98: * makefile(s) where it's necessary, if 
build/core/base_rules.mk:99: * appropriate. 
build/core/base_rules.mk:100: * 
build/core/base_rules.mk:101: * If the component should be in EVERY build of 
ALL 
build/core/base_rules.mk:102: * products, then add its LOCAL_MODULE value to 
the 
build/core/base_rules.mk:103: * PRODUCT_PACKAGES section of 
build/core/base_rules.mk:104: * build/target/product/core.mk 
build/core/base_rules.mk:105: * 
build/core/base_rules.mk:106: *** user tag detected on new module - user tags 
are only supported on legacy modules. Stop. 

Does anyone have any ideas on how to proceed? 

I've attached my manifest below for reference. 

a20.xml 
-------------------------------------- 
<?xml version="1.0" encoding="UTF-8"?> 
<manifest> 

<remote name="homlet" 
fetch="~/A20-dev/android" /> 
<remote name="b2g" 
fetch="git://github.com/mozilla-b2g/" /> 
<remote name="mozilla" 
fetch="git://github.com/mozilla/" /> 
<remote name="mozillaorg" 
fetch="https://git.mozilla.org/releases"; /> 
<remote name="apitrace" fetch="git://github.com/apitrace/" /> 
<default revision="develop" 
remote="homlet" 
sync-j="4" /> 

<!-- Gonk specific things and forks --> 
<project path="build" name="platform_build" remote="b2g" revision="master"> 
<copyfile src="core/root.mk" dest="Makefile" /> 
</project> 
<project path="dalvik" name="fake-dalvik" remote="b2g" revision="master" /> 
<project path="gaia" name="gaia.git" remote="mozillaorg" revision="master" /> 
<project path="gecko" name="gecko.git" remote="mozillaorg" revision="master" /> 
<project path="gonk-misc" name="gonk-misc" remote="b2g" revision="master" /> 
<project path="rilproxy" name="rilproxy" remote="b2g" revision="master" /> 
<project path="external/moztt" name="moztt" remote="b2g" revision="master" /> 
<project path="external/apitrace" name="apitrace" remote="apitrace" 
revision="master" /> 

<project path="abi/cpp" name="platform/abi/cpp" /> 
<project path="bionic" name="platform/bionic" /> 
<project path="bootable/bootloader/legacy" 
name="platform/bootable/bootloader/legacy" /> 
<project path="bootable/diskinstaller" name="platform/bootable/diskinstaller" 
/> 
<project path="bootable/recovery" name="platform/bootable/recovery" /> 
<project path="cts" name="platform/cts" /> 
<project path="dalvik" name="platform/dalvik" /> 
<project path="development" name="platform/development" /> 
<project path="device/asus/grouper" name="device/asus/grouper" groups="device" 
/> 
<project path="device/asus/tilapia" name="device/asus/tilapia" groups="device" 
/> 
<project path="device/common" name="device/common" /> 
<project path="device/generic/armv7-a-neon" name="device/generic/armv7-a-neon" 
/> 
<project path="device/generic/armv7-a" name="device/generic/armv7-a" /> 
<project path="device/generic/common" name="device/generic/common" /> 
<project path="device/generic/goldfish" name="device/generic/goldfish" /> 
<project path="device/generic/mips" name="device/generic/mips" /> 
<project path="device/generic/x86" name="device/generic/x86" /> 
<project path="device/google/accessory/arduino" 
name="device/google/accessory/arduino" groups="device" /> 
<project path="device/google/accessory/demokit" 
name="device/google/accessory/demokit" groups="device" /> 
<project path="device/sample" name="device/sample" /> 
<project path="external/aac" name="platform/external/aac" /> 
<project path="external/bluetooth/bluedroid" 
name="platform/external/bluetooth/bluedroid" /> 
<project path="external/bsdiff" name="platform/external/bsdiff" /> 
<project path="external/bzip2" name="platform/external/bzip2" /> 
<project path="external/cibu-fonts" name="platform/external/cibu-fonts" /> 
<project path="external/dbus" name="platform/external/dbus" /> 
<project path="external/dhcpcd" name="platform/external/dhcpcd" /> 
<project path="external/dnsmasq" name="platform/external/dnsmasq" /> 
<project path="external/elfcopy" name="platform_external_elfcopy" remote="b2g" 
revision="master" /> 
<project path="external/elfutils" name="platform_external_elfutils" 
remote="b2g" revision="master" /> 
<project path="external/expat" name="platform/external/expat" /> 
<project path="external/fdlibm" name="platform/external/fdlibm" /> 
<project path="external/flac" name="platform/external/flac" /> 
<project path="external/freetype" name="platform/external/freetype" /> 
<project path="external/giflib" name="platform/external/giflib" /> 
<project path="external/gtest" name="platform/external/gtest" /> 
<project path="external/harfbuzz" name="platform/external/harfbuzz" /> 
<project path="external/icu4c" name="platform/external/icu4c" /> 
<project path="external/iproute2" name="platform/external/iproute2" /> 
<project path="external/iptables" name="platform/external/iptables" /> 
<project path="external/jpeg" name="platform/external/jpeg" /> 
<project path="external/libcap-ng" name="platform/external/libcap-ng" /> 
<project path="external/libffi" name="platform/external/libffi" /> 
<project path="external/libgsm" name="platform/external/libgsm" /> 
<project path="external/liblzf" name="platform/external/liblzf" /> 
<project path="external/libmtp" name="platform/external/libmtp" /> 
<project path="external/libnfc-nxp" name="platform/external/libnfc-nxp" /> 
<project path="external/libnl-headers" name="platform/external/libnl-headers" 
/> 
<project path="external/libogg" name="platform/external/libogg" /> 
<project path="external/libpng" name="platform/external/libpng" /> 
<project path="external/libusb" name="platform/external/libusb" /> 
<project path="external/libusb-compat" name="platform/external/libusb-compat" 
/> 
<project path="external/libvorbis" name="platform/external/libvorbis" /> 
<project path="external/libvpx" name="platform/external/libvpx" /> 
<project path="external/libxml2" name="platform/external/libxml2" /> 
<project path="external/libxslt" name="platform/external/libxslt" /> 
<project path="external/libyuv" name="platform/external/libyuv" /> 
<project path="external/lohit-fonts" name="platform/external/lohit-fonts" /> 
<project path="external/mdnsresponder" name="platform/external/mdnsresponder" 
/> 
<project path="external/mksh" name="platform/external/mksh" /> 
<project path="external/mockwebserver" name="platform/external/mockwebserver" 
/> 
<project path="external/openssl" name="platform/external/openssl" /> 
<project path="external/ping" name="platform/external/ping" /> 
<project path="external/ping6" name="platform/external/ping6" /> 
<project path="external/protobuf" name="platform/external/protobuf" /> 
<project path="external/safe-iop" name="platform/external/safe-iop" /> 
<project path="external/sepolicy" name="platform/external/sepolicy" /> 
<project path="external/sonivox" name="platform/external/sonivox" /> 
<project path="external/speex" name="platform/external/speex" /> 
<project path="external/sqlite" name="platform/external/sqlite" /> 
<project path="external/stlport" name="platform/external/stlport" /> 
<project path="external/strace" name="platform/external/strace" /> 
<project path="external/svox" name="platform/external/svox" /> 
<project path="external/tagsoup" name="platform/external/tagsoup" /> 
<project path="external/tinyalsa" name="platform/external/tinyalsa" /> 
<project path="external/tremolo" name="platform/external/tremolo" /> 
<project path="external/webp" name="platform/external/webp" /> 
<project path="external/webrtc" name="platform/external/webrtc" /> 
<project path="external/wpa_supplicant_6" 
name="platform/external/wpa_supplicant_6" /> 
<project path="external/wpa_supplicant_8" 
name="platform/external/wpa_supplicant_8" /> 
<project path="external/yaffs2" name="platform/external/yaffs2" /> 
<project path="external/zlib" name="platform/external/zlib" /> 
<project path="frameworks/av" name="platform/frameworks/av" /> 
<project path="frameworks/base" name="platform/frameworks/base" /> 
<project path="frameworks/opt/emoji" name="platform/frameworks/opt/emoji" /> 
<project path="frameworks/support" name="platform/frameworks/support" /> 
<project path="hardware/libhardware" name="platform/hardware/libhardware" /> 
<project path="hardware/libhardware_legacy" 
name="platform/hardware/libhardware_legacy" /> 
<project path="hardware/ril" name="platform/hardware/ril" /> 
<project path="libcore" name="platform/libcore" /> 
<project path="ndk" name="platform/ndk" /> 
<project path="packages/providers/ApplicationsProvider" 
name="platform/packages/providers/ApplicationsProvider" /> 
<project path="packages/providers/DrmProvider" 
name="platform/packages/providers/DrmProvider" /> 
<project path="packages/providers/MediaProvider" 
name="platform/packages/providers/MediaProvider" /> 
<project path="system/bluetooth" name="platform/system/bluetooth" /> 
<project path="system/core" name="platform/system/core" /> 
<project path="system/extras" name="platform/system/extras" /> 
<project path="system/media" name="platform/system/media" /> 
<project path="system/netd" name="platform/system/netd" /> 
<project path="system/vold" name="platform/system/vold" /> 
<project path="tools/build" name="platform/tools/build" groups="toolsbuild" /> 
<project path="tools/motodev" name="platform/tools/motodev" /> 

<!-- Allwinner things --> 
<project path="device/softwinner/common" name="device/softwinner/common" /> 
<project path="device/softwinner/wing-common" 
name="device/softwinner/wing-common" /> 
<project path="device/softwinner/wing-evb-v10" 
name="device/softwinner/wing-evb-v10" /> 
<project path="device/softwinner/sugar-evb" name="device/softwinner/sugar-evb" 
/> 
<project path="device/softwinner/sugar-ref001" 
name="device/softwinner/sugar-ref001" /> 

<project path="hardware/broadcom/wlan" name="platform/hardware/broadcom/wlan" 
/> 
<project path="hardware/aw" name="platform/hardware/aw" /> 
<project path="packages/experimental" name="platform/packages/experimental" /> 

</manifest> 
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