From 5f655c93f931236c173700f54e4b329bf709e7cc Mon Sep 17 00:00:00 2001
From: Linus Nielsen Feltzing <linus@haxx.se>
Date: Thu, 13 Jul 2006 07:40:30 +0000
Subject: Patch #5639 by Ulrich Pegelow, inits the M5636 USBOTG chip on the X5
 to reduce the battery consumption.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10208 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/drivers/m5636.c | 45 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100755 firmware/drivers/m5636.c

(limited to 'firmware/drivers/m5636.c')

diff --git a/firmware/drivers/m5636.c b/firmware/drivers/m5636.c
new file mode 100755
index 0000000000..e7b7a174df
--- /dev/null
+++ b/firmware/drivers/m5636.c
@@ -0,0 +1,45 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2006 Ulrich Pegelow
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include "system.h"
+#include "kernel.h"
+#include "logf.h"
+#include "m5636.h"
+#include "m5636-target.h"
+
+/* Disclaimer: This code had to be developed without any documentation for the
+               M5636 USBOTG chip, due to the restrictive information policy of
+               its manufacturer.
+               The development is solely based on reverse engineering.
+               Malfunctioning (with the risk of possible damage to the
+               hardware) can not be fully excluded.
+               USE THIS CODE AT YOUR OWN RISK!
+*/
+
+/* Init: This currently just puts the M5636 into sleep mode */
+
+void m5636_init(void)
+{
+    m5636_device_init();
+
+    M5636_4068 |= 0x0003; /* ???? */
+    M5636_4068 |= 0x0080; /* ???? */
+    M5636_4078 |= 0x0001; /* ???? */
+}
+
-- 
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