Set the AT91RM9200 clock to synchronous mode
Patch by Anders Larsen, 29 Apr 2005
diff --git a/CHANGELOG b/CHANGELOG
index 53afe66..8c63cde 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 05887ad..6941d42 100644
--- a/cpu/arm920t/at91rm9200/lowlevel_init.S
+++ b/cpu/arm920t/at91rm9200/lowlevel_init.S
@@ -123,6 +123,11 @@
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