X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=src%2Fsuperio%2Fintel%2Fi3100%2Fi3100.h;h=5fe8e086e7ef7b4acd102abc29d2c29a80371d0c;hb=7d3418849de907b82e3a5cca9969d261553f61a0;hp=0619735e2ae6e392b4842c7721c531ef99fad398;hpb=e4870474b9026ad6b2ccabe59a8623e28722007f;p=coreboot.git

diff --git a/src/superio/intel/i3100/i3100.h b/src/superio/intel/i3100/i3100.h
index 0619735e2..5fe8e086e 100644
--- a/src/superio/intel/i3100/i3100.h
+++ b/src/superio/intel/i3100/i3100.h
@@ -18,11 +18,30 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  */
 
-/* Datasheet: http://www.intel.com/design/intarch/datashts/313458.htm */
+/*
+ * Datasheet:
+ *  - Name: Intel 3100 Chipset
+ *  - URL: http://www.intel.com/design/intarch/datashts/313458.htm
+ *  - PDF: http://download.intel.com/design/intarch/datashts/31345803.pdf
+ *  - Revision / Date: 007, October 2008
+ *  - Order number: 313458-007US
+ */
 
 #ifndef SUPERIO_INTEL_I3100_I3100_H
 #define SUPERIO_INTEL_I3100_I3100_H
 
+/*
+ * The SIW ("Serial I/O and Watchdog Timer") integrated into the i3100 is
+ * very similar to a Super I/O, both in functionality and config mechanism.
+ *
+ * The SIW contains:
+ *  - UART(s)
+ *  - Serial interrupt controller
+ *  - Watchdog timer (WDT)
+ *  - LPC interface
+ */
+
+/* Logical device numbers (LDNs). */
 #define I3100_SP1 0x04 /* Com1 */
 #define I3100_SP2 0x05 /* Com2 */
 #define I3100_WDT 0x06 /* Watchdog timer */