7f75045371
oe-core does not define any machines, so it does not make sense to
add machine specific information in the oe-core u-boot recipe and
infrastructure. Also note that COMPATIBLE_MACHINES is not easily extended due to
its regex syntax: "(machine_a|machine_b)", making it difficult to extend the
u-boot recipe in bbappend files without resorting to machine specific overrides.
Remove COMPATIBLE_MACHINES and the default UBOOT_MACHINE from the recipe and
insert some anonymous python into u-boot.inc to raise SkipPackage if
UBOOT_MACHINE is not set (this ensures 'world' still works for machines that
can't build u-boot).
UBOOT_MACHINE must now be specified in each machine config that requires u-boot.
This is an improvement over requiring machine specific overrides in every BSP
layer's u-boot_git.bbappend file. For example, a beagleboard machine config
currently contains:
UBOOT_ENTRYPOINT = "0x80008000"
UBOOT_LOADADDRESS = "0x80008000"
With this change, it must now contain:
UBOOT_MACHINE = "omap3_beagle_config"
UBOOT_ENTRYPOINT = "0x80008000"
UBOOT_LOADADDRESS = "0x80008000"
So long as the SRC_URI in the base recipe can build a working u-boot for a given
machine, there is no need to create a u-boot_git.bbappend file. If additional
patches are deemed necessary, a BSP layer creates a u-boot_git.bbappend file and
extends the SRC_URI to include general or machine specific backports.
Note: I used bb.note() instead of bb.debug() to ensure the message at least
makes it to the console. From what I could gather, bb.debug() doesn't
go anywhere during recipe parsing.
(From OE-Core rev: c7a198d7472b4767047dbbfeecb4d941055262b3)
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Cc: Richard Purdie <richard.purdie@linuxfoundation.org>
Cc: Koen Kooi <koen@dominion.thruhere.net>
Cc: Jason Kridner <jkridner@beagleboard.org>
Cc: Chris Larson <clarson@kergoth.com>
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/community/documentation
For information about OpenEmbedded see their website: http://www.openembedded.org/