[oe] [PATCH] common_use_cases: add description of SOC_FAMILY

[Chase Maupin]

* Added a description of the SOC_FAMILY variable that
  can be set in the machine configuration files.

Signed-off-by: Chase Maupin <chase.maupin at ti.com>
---
 docs/usermanual/chapters/common_use_cases.xml |   13 +++++++++++++
 1 files changed, 13 insertions(+), 0 deletions(-)

diff --git a/docs/usermanual/chapters/common_use_cases.xml b/docs/usermanual/chapters/common_use_cases.xml
index d86d0ca..9d1dc6d 100644
--- a/docs/usermanual/chapters/common_use_cases.xml
+++ b/docs/usermanual/chapters/common_use_cases.xml
@@ -94,6 +94,19 @@ SRCDATE = "20061014"
         </listitem>
       </itemizedlist></para>
 
+    <para>There are also some optional variables that can be defined:
+    <itemizedlist>
+    <listitem>
+          <para><command>SOC_FAMILY</command> describes a family of processors
+            that all share common features such as kernel versions,
+            bootloaders, etc.  This is used to allow overrides for a whole
+            set of devices rather than per machine overrides being used.
+            The use of SOC_FAMILY as an override is currently a distribution
+            or local setting.
+          </para>
+        </listitem>
+    </itemizedlist></para>
+
     <para>Next the kernel recipe needs to be added if it doesn't already exist.
     </para>
   </section>
-- 
1.7.0.4