最後參考...http://git.freescale.com/git/cgit.cgi/imx/meta-nxp-agl.git/tree/README.txt?h=krogoth :

This builds the Wayland-Weston AGL image with the basic AGL interface. 
Demos can then be run on top of this.

This image has only been run on i.MX 6QP Sabre and Sabre Auto.
It is not supported nor tested.  It is simply a demo showing that the basic image runs.
It runs on the 4.1.15-1.0.0 Freescale release of Linux.

Build instructions:
To get the BSP you need to have `repo` installed.

Install the `repo` utility (only need to do once per user):
--------------------------------------------------

$: mkdir ~/bin
$: curl http://commondatastorage.googleapis.com/git-repo-downloads/repo > ~/bin/repo
$: chmod a+x ~/bin/repo
$: PATH=${PATH}:~/bin

Download the BSP Yocto Project Environment into your directory:
-------------------------------------------

$: mkdir fsl-arm-yocto-bsp
$: cd fsl-arm-yocto-bsp
$: repo init -u git://git.freescale.com/imx/fsl-arm-yocto-bsp.git -b imx-4.1-krogoth -m imx-4.1.15-2.0.0-agl-demo.xml

$: repo sync

Setup and Build for Wayland (currently, only one supported)
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$: DISTRO=nxp-imx-agl-wayland MACHINE=imx6qpsabreauto source nxp-setup-agl.sh -b bld-agl

IMAGES
-------------------------------------------
Most interesting results currently seen with:
$: bitbake agl-demo-platform

Other images:
$: bitbake agl-image-minimal
$: bitbake agl-image-ivi
$: bitbake agl-image-weston

The "navi" demo is also included.  To run it, follow the instructions in the README.md in sources/gpsnavi-agl.

The CES2016 demo is in this image.  To run it, you need to connect an HDMI monitor in the "portrait" orientation.
The dimensions in the demos are hard coded.  The files used are in /opt/AGL/CES2016 and /etc/xdg/weston.  

然後machine 改 wandboard 再 build, failed...

WARNING: wayland-ivi-extension-1.9.1-r0 do_fetch: Failed to fetch URL file://wandboard_fix_build.patch, attempting MIRRORS if available
ERROR: wayland-ivi-extension-1.9.1-r0 do_fetch: Fetcher failure: Unable to find file file://wandboard_fix_build.patch anywhere. 
...
...
ERROR: wayland-ivi-extension-1.9.1-r0 do_fetch: Function failed: Fetcher failure for URL: 'file://wandboard_fix_build.patch'. Unable to fetch URL from any source.
ERROR: Logfile of failure stored in: /home/charles-chang/fsl-arm-yocto-bsp/bld-agl-wandboard/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/wayland-ivi-extension/1.9.1-r0/temp/log.do_fetch.1143
ERROR: Task 3832 (/home/charles-chang/fsl-arm-yocto-bsp/sources/meta-nxp-agl/recipes-graphics/wayland/wayland-ivi-extension_1.9.1.bb, do_fetch) failed with exit code '1'