This layer provides support for Atmel | SMART microprocessors (aka AT91)
========================================================================

For more information about the Atmel | SMART product line see:
http://www.atmel.com/products/microcontrollers/arm/
Linux & Open Source on Atmel | SMART:
http://www.linux4sam.org


Supported SoCs / MACHINE names
==============================
- SAMA5D2 product family / sama5d2-xplained
- SAMA5D4 product family / sama5d4ek, sama5d4-xplained
- SAMA5D3 product family / sama5d3xek, sama5d3-xplained
- AT91SAM9x5 product family (AT91SAM9G15, AT91SAM9G25, AT91SAM9X25, AT91SAM9G35 and AT91SAM9X35) / at91sam9x5ek
- AT91SAM9RL / at91sam9rlek
- AT91SAM9G45 / at91sam9m10g45ek


Sources
=======
- meta-atmel
URI: git://github.com/linux4sam/meta-atmel.git
URI: https://github.com/linux4sam/meta-atmel.git
Branch: master


Dependencies
============
This Layer depends on :
- meta-openembedded
URI: git://git.openembedded.org/meta-openembedded
URI: http://cgit.openembedded.org/meta-openembedded/
Branch: master

Optionally:
- meta-qt5
URI: git://github.com/meta-qt5/meta-qt5.git
URI: https://github.com/meta-qt5/meta-qt5
Branch: master


Build procedure
===============

0/ Create a directory
mkdir my_dir
cd my_dir

1/ Clone yocto/poky git repository with the proper branch ready
git clone git://git.yoctoproject.org/poky

2/ Clone meta-openembedded git repository with the proper branch ready
git clone git://git.openembedded.org/meta-openembedded

3/ Clone meta-qt5 git repository with the proper branch ready
git clone git://github.com/meta-qt5/meta-qt5.git

4/ Clone meta-atmel layer with the proper branch ready
git clone git://github.com/linux4sam/meta-atmel.git

5/ Enter the poky directory to configure the build system and start the build process
cd poky

6/ Initialize build directory
source oe-init-build-env build-atmel

7/ Add meta-atmel layer to bblayer configuration file
vim conf/bblayers.conf

# LAYER_CONF_VERSION is increased each time build/conf/bblayers.conf
# changes incompatibly
POKY_BBLAYERS_CONF_VERSION = "2"

BBPATH = "${TOPDIR}"
BBFILES ?= ""

BSPDIR := "${@os.path.abspath(os.path.dirname(d.getVar('FILE', True)) + '/../../..')}"

BBLAYERS ?= " \
  ${BSPDIR}/poky/meta \
  ${BSPDIR}/poky/meta-poky \
  ${BSPDIR}/poky/meta-yocto-bsp \
  ${BSPDIR}/meta-atmel \
  ${BSPDIR}/meta-openembedded/meta-oe \
  ${BSPDIR}/meta-openembedded/meta-networking \
  ${BSPDIR}/meta-openembedded/meta-python \
  ${BSPDIR}/meta-openembedded/meta-ruby \
  ${BSPDIR}/meta-openembedded/meta-multimedia \
  ${BSPDIR}/sources/meta-qt5 \
  "

BLAYERS_NON_REMOVABLE ?= " \
  ${BSPDIR}/poky/meta \
  ${BSPDIR}/poky/meta-poky \
  "

8/ Edit local.conf to specify the machine, location of source archived, package type (rpm, deb or ipk)
Pick one MACHINE name from the "Supported SoCs / MACHINE names" chapter above
and edit the "local.conf" file. Here is an example:

vim conf/local.conf
[...]
MACHINE ??= "sama5d3-xplained"
[...]
DL_DIR ?= "your_download_directory_path"
[...]
PACKAGE_CLASSES ?= "package_ipk"
[...]
USER_CLASSES ?= "buildstats image-mklibs"

To get better performance, use the "poky-atmel" distribution by also adding that
line:
DISTRO = "poky-atmel"

9/ Build core minimal image
bitbake core-image-minimal

10/ We found that additional local.conf changes are needed for our QT demo
image. You can add these two lines at the end of the file:
vim conf/local.conf
[...]
LICENSE_FLAGS_WHITELIST += "commercial"
SYSVINIT_ENABLED_GETTYS = ""

11/ Build Atmel demo images
bitbake atmel-qt5-demo-image


Typical bitbake output
======================
Build Configuration:
BB_VERSION        = "1.30.0"
BUILD_SYS         = "x86_64-linux"
NATIVELSBSTRING   = "universal"
TARGET_SYS        = "arm-poky-linux-gnueabi"
MACHINE           = "sama5d2-xplained"
DISTRO            = "poky-atmel"
DISTRO_VERSION    = "2.1"
TUNE_FEATURES     = "arm armv7a vfp thumb neon       callconvention-hard       cortexa5"
TARGET_FPU        = "hard"
meta              
meta-poky         
meta-yocto-bsp    = "krogoth:6c1c01392d91f512e2949ad1d57a75a8077478ba"
meta-atmel        = "master:28c4b5d70f3f7df6f8b108a01f621ca0cf23c1a4"
meta-multimedia   
meta-networking   
meta-python       
meta-ruby         
meta-oe           = "krogoth:abd1795729501a13608da67054b9cbf185404be3"
meta-qt5          = "krogoth:4ec27e218d725677279d265ac1fc256443d665f7"


Contributing
============
To contribute to this layer you should submit the patches for review to:
the github pull-request facility directly or the forum. Anyway, don't forget to
Cc the maintainers.

AT91 Forum:
http://www.at91.com/discussions/

for some useful guidelines to be followed when submitting patches:
http://www.openembedded.org/wiki/How_to_submit_a_patch_to_OpenEmbedded

Maintainers:
Nicolas Ferre <nicolas.ferre@atmel.com>
Patrice Vilchez <patrice.vilchez@atmel.com>

When creating patches insert the [meta-atmel] tag in the subject, for example
use something like:
git format-patch -s --subject-prefix='meta-atmel][PATCH' <origin>