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Otavio Salvador
82ddcb1ef5
Some machines provide several possible configurations and until now there was no easy way for user to override the default setting. This class provides a system similar to PACKAGECONFIG but for U-Boot. The format is: UBOOT_CONFIG ??= <default> UBOOT_CONFIG[foo] = "config,images" There are two possible parameters: - config: it is used to set UBOOT_MACHINE - images: it is used to append onto IMAGE_FSTYPES Below there's an usage example: ,----[ i.MX6Q SABRE AUTO based example ] | UBOOT_CONFIG ??= "sd" | UBOOT_CONFIG[sd] = "mx6qsabreauto_config,sdcard" | UBOOT_CONFIG[eimnor] = "mx6qsabreauto_eimnor_config" | UBOOT_CONFIG[nand] = "mx6qsabreauto_nand_config,ubifs" | UBOOT_CONFIG[spinor] = "mx6qsabreauto_spinor_config" `---- User can, from local.conf or environment, use UBOOT_CONFIG=nand and override the default setting, as: ,----[ Override example from command line ] | MACHINE=imx6qsabreauto UBOOT_CONFIG=nand bitbake core-image-base `---- (From OE-Core rev: 5dba521611d644357cf0a98d2e30dcf41777c6ef) Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Poky
====
Poky is an integration of various components to form a complete prepackaged
build system and development environment. It features support for building
customised embedded device style images. There are reference demo images
featuring a X11/Matchbox/GTK themed UI called Sato. The system supports
cross-architecture application development using QEMU emulation and a
standalone toolchain and SDK with IDE integration.
Additional information on the specifics of hardware that Poky supports
is available in README.hardware. Further hardware support can easily be added
in the form of layers which extend the systems capabilities in a modular way.
As an integration layer Poky consists of several upstream projects such as
BitBake, OpenEmbedded-Core, Yocto documentation and various sources of information
e.g. for the hardware support. Poky is in turn a component of the Yocto Project.
The Yocto Project has extensive documentation about the system including a
reference manual which can be found at:
http://yoctoproject.org/documentation
OpenEmbedded-Core is a layer containing the core metadata for current versions
of OpenEmbedded. It is distro-less (can build a functional image with
DISTRO = "") and contains only emulated machine support.
For information about OpenEmbedded, see the OpenEmbedded website:
http://www.openembedded.org/
Where to Send Patches
=====================
As Poky is an integration repository, patches against the various components
should be sent to their respective upstreams.
bitbake:
bitbake-devel@lists.openembedded.org
meta-yocto:
poky@yoctoproject.org
Most everything else should be sent to the OpenEmbedded Core mailing list. If
in doubt, check the oe-core git repository for the content you intend to modify.
Before sending, be sure the patches apply cleanly to the current oe-core git
repository.
openembedded-core@lists.openembedded.org
Note: The scripts directory should be treated with extra care as it is a mix
of oe-core and poky-specific files.