From 3b9dfddfd8fc7d6639e6d746774ca7af77dfd881 Mon Sep 17 00:00:00 2001
From: Wolfgang Denk <wd@pollux.denx.de>
Date: Wed, 5 Oct 2005 02:02:25 +0200
Subject: [PATCH] Set the AT91RM9200 clock to synchronous mode Patch by Anders
 Larsen, 29 Apr 2005

---
 CHANGELOG                              | 3 +++
 cpu/arm920t/at91rm9200/lowlevel_init.S | 5 +++++
 2 files changed, 8 insertions(+)

diff --git a/CHANGELOG b/CHANGELOG
index 53afe66afbe..8c63cdeb4c7 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -2,6 +2,9 @@
 Changes for U-Boot 1.1.4:
 ======================================================================
 
+* Set the AT91RM9200 clock to synchronous mode
+  Patch by Anders Larsen, 29 Apr 2005
+
 * Add support for Cogent csb637
   Patch by Anders Larsen, 29 Apr 2005
 
diff --git a/cpu/arm920t/at91rm9200/lowlevel_init.S b/cpu/arm920t/at91rm9200/lowlevel_init.S
index 05887adc0c4..6941d42dff0 100644
--- a/cpu/arm920t/at91rm9200/lowlevel_init.S
+++ b/cpu/arm920t/at91rm9200/lowlevel_init.S
@@ -123,6 +123,11 @@ LoopOsc:
 	cmp	r2, r0
 	bne	2b
 
+	/* switch from FastBus to Synchronous clock mode */
+	mrc	p15, 0, r0, c1, c0, 0
+	orr	r0, r0, #0x40000000	@ set bit 30 (nF) notFastBus
+	mcr	p15, 0, r0, c1, c0, 0
+
 	/* everything is fine now */
 	mov	pc, lr
 
-- 
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