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* [PATCHv2] common_use_cases: add description of SOC_FAMILY
@ 2010-09-08 18:03 Chase Maupin
  2010-09-08 21:47 ` Paul Menzel
  2010-09-09  6:17 ` Frans Meulenbroeks
  0 siblings, 2 replies; 6+ messages in thread
From: Chase Maupin @ 2010-09-08 18:03 UTC (permalink / raw)
  To: openembedded-devel

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

Signed-off-by: Chase Maupin <chase.maupin@ti.com>
---
 docs/usermanual/chapters/common_use_cases.xml |   24 ++++++++++++++++++++++++
 1 files changed, 24 insertions(+), 0 deletions(-)

diff --git a/docs/usermanual/chapters/common_use_cases.xml b/docs/usermanual/chapters/common_use_cases.xml
index d86d0ca..ef81b95 100644
--- a/docs/usermanual/chapters/common_use_cases.xml
+++ b/docs/usermanual/chapters/common_use_cases.xml
@@ -94,6 +94,30 @@ 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>
+          <para>
+            NOTE: SOC_FAMILY is different than MACHINE_CLASS in that 
+            MACHINE_CLASS is intended to specify a grouping of devices
+            that may have different processors but share common features.
+            For example all OMAP3 devices can be described using the SOC_FAMILY
+            "omap3" and this value can be used in overrides to prevent
+            requiring multiple machine specific overrides.  MACHINE_CLASS
+            might be used to describe a class of devices such as a cell
+            phone in which the processor may be different but the
+            features such as touchscreen, GPS, modem, etc are the same.
+          </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




^ permalink raw reply related	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2010-09-10 19:02 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2010-09-08 18:03 [PATCHv2] common_use_cases: add description of SOC_FAMILY Chase Maupin
2010-09-08 21:47 ` Paul Menzel
2010-09-09 12:09   ` Maupin, Chase
2010-09-09 16:19     ` Paul Menzel
2010-09-09  6:17 ` Frans Meulenbroeks
2010-09-10 19:01   ` Denys Dmytriyenko

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