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kernel-dev: Updates to the "Using Kernel Metadata in a Recipe" section. 

Changed out the example to use some bits from the meta-xilinx layer
instead of the emenlow layer.

Reported-by: Robert P. J. Day <crashcourse.ca>
(From yocto-docs rev: 477c62877f5882538176d0f9c8a10fc4cf878628)

Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Scott Rifenbark 2015-03-06 10:50:56 -08:00 committed by Richard Purdie
parent 947cc83436
commit 78cecf7a20
1 changed files with 12 additions and 7 deletions
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19
documentation/kernel-dev/kernel-dev-advanced.xml
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@ -48,14 +48,18 @@
This variable is typically set to the same value as the
<ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE'><filename>MACHINE</filename></ulink>
variable, which is used by
<ulink url='&YOCTO_DOCS_DEV_URL;#bitbake-term'>BitBake</ulink>
(e.g. "edgerouter" or "emenlow").
<ulink url='&YOCTO_DOCS_DEV_URL;#bitbake-term'>BitBake</ulink>.
However, in some cases, the variable might instead refer to the
underlying platform of the <filename>MACHINE</filename>.
</para>
<para>
Multiple BSPs can reuse the same <filename>KMACHINE</filename>
name if they are built using the same BSP description.
The "emenlow" and "emenlow-noemgd" BSP combination
in the <filename>meta-intel</filename>
The "ep108-zynqmp" and "qemuzynqmp" BSP combination
in the <filename>meta-xilinx</filename>
layer is a good example of two BSPs using the same
<filename>KMACHINE</filename> value (i.e. "emenlow").
<filename>KMACHINE</filename> value (i.e. "zynqmp").
See the <link linkend='bsp-descriptions'>BSP Descriptions</link> section
for more information.
</para>
@ -67,9 +71,10 @@
variable must be set to indicate the branch.
<note>
You can use the <filename>KBRANCH</filename> value to define an
alternate branch typically with a machine override as follows:
alternate branch typically with a machine override as shown here
from the <filename>meta-emenlow</filename> layer:
<literallayout class='monospaced'>
KBRANCH_emenlow ?= "standard/emenlow"
KBRANCH_emenlow-noemgd = "standard/base"
</literallayout>
</note>
</para>