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documentation/bsp-guide/bsp.xml: Updated Linux Kernel Configuration section. 

Another round of feedback from Tom Z applied.

Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
This commit is contained in:
Scott Rifenbark 2010-12-17 16:53:59 -08:00 committed by Richard Purdie
parent 1d671c41df
commit 94f7dd2629
1 changed files with 11 additions and 6 deletions
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17
documentation/bsp-guide/bsp.xml
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@ -315,7 +315,7 @@ meta-crownbay/recipes-graphics/xorg-xserver/xserver-xf86-emgd_1.7.99.2.bb
<section id='bsp-filelayout-kernel'>
<title>Linux Kernel Configuration</title>
<programlisting>
meta-&lt;bsp_name&gt;/recipes-kernel/linux/linux-wrs_git.bbappend
meta-&lt;bsp_name&gt;/recipes-kernel/linux/linux-yocto-stable.bbappend
</programlisting>
<para>
@ -330,21 +330,26 @@ meta-&lt;bsp_name&gt;/recipes-kernel/linux/linux-wrs_git.bbappend
directory.
</para>
<para>
Consider a BSP that uses the <filename>linux-yocto-stable_git.bb</filename> kernel,
Supppose you use a BSP that uses the <filename>linux-yocto-stable_git.bb</filename> kernel,
which is the preferred kernel to use for developing a new BSP using the Yocto Project.
In other words, you have selected the kernel in your
<filename>&lt;bsp_name&gt;.conf</filename> file by adding the following statement:
<programlisting>
PREFERRED_PROVIDER_virtual/kernel ?= "linux-yocto-stable"
</programlisting>
You would use the <filename>linux-yocto-stable_git.bbappend</filename> file to append
specific BSP settings to the kernel, thus configuring the kernel for your particular BSP.
</para>
<para>
Consider an example for the existing "crownbay" BSP.
The append file used for the "crownbay" BSP is:
Now take a look at the existing "crownbay" BSP.
The append file used is:
<programlisting>
meta-crownbay/recipes-kernel/linux/linux-yocto-stable_git.bbappend
</programlisting>
The file contains the following:
<programlisting>
FILESEXTRAPATHS := "${THISDIR}/${PN}"
COMPATIBLE_MACHINE_crownbay = "cronwbay"
COMPATIBLE_MACHINE_crownbay = "crownbay"
KMACHINE_crownbay = "crownbay"
</programlisting>
This append file adds "crownbay" as a compatible machine,
@ -366,7 +371,7 @@ KMACHINE_crownbay = "crownbay"
For example, suppose you had a set of configuration options in a file called
<filename>defonfig</filename>.
If you put that file inside a directory named
<filename class='directory'>/linux-yocto-stable_git</filename> and then added
<filename class='directory'>/linux-yocto-stable</filename> and then added
a SRC_URI statement such as the following to the append file, those configuration
options will be picked up and applied when the kernel is built.
<programlisting>