This layer provides support for Acme System boards
=============================================================

For more information about the EvoLogics product line see:
    https://www.acmesystems.it/

Supported SoCs / MACHINE names
    - SAMA5D2 product family / sama5d2-roadrunner-bertad2-spi

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

- meta-atmel
URI: https://github.com/linux4sam/meta-atmel
Branch: rocko

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 -b rocko

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

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

4/ Clone meta-acme layer with the proper branch ready
git clone https://github.com/ramok/meta-acme -b rocko

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

# POKY_BBLAYERS_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-acme \
  "

BBLAYERS_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 ??= "sama5d2-roadrunner-bertad2-qspi"
[...]
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

Typical bitbake output
======================
Build Configuration:
BB_VERSION           = "1.36.0"
BUILD_SYS            = "x86_64-linux"
NATIVELSBSTRING      = "universal"
TARGET_SYS           = "arm-poky-linux-musleabi"
MACHINE              = "sama5d2-roadrunner-bertad2-qspi"
DISTRO               = "poky"
DISTRO_VERSION       = "2.4.2"
TUNE_FEATURES        = "arm armv7a vfp thumb neon callconvention-hard cortexa5"
TARGET_FPU           = "hard"
meta
meta-poky
meta-yocto-bsp       = "rocko:342fbd6a3e57021c8e28b124b3adb241936f3d9d"
meta-atmel           = "rocko:58682d77fcb0e8c5c21bda336063aba1620971ea"
meta-acme            = "rocko:9b7213c99e760a5491ece629cc68c37b3670e519"

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.

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

Maintainers:
    Maksym Komar <[email protected]>

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