Set the AT91RM9200 clock to asynchronous mode

Patch by Anders Larsen, 03 May 2005
20 years ago · c0e82d5016
parent 3b9dfddfd8
commit c0e82d5016
2 changed files with 5 additions and 2 deletions
--- a/3
+++ b/3
@ -2,6 +2,9 @@
 Changes for U-Boot 1.1.4:
 ======================================================================

+* Set the AT91RM9200 clock to asynchronous mode
+  Patch by Anders Larsen, 03 May 2005
+
 * Set the AT91RM9200 clock to synchronous mode
  Patch by Anders Larsen, 29 Apr 2005

--- a/cpu/arm920t/at91rm9200/lowlevel_init.S
+++ b/cpu/arm920t/at91rm9200/lowlevel_init.S
@ -123,9 +123,9 @@ LoopOsc:
 	cmp	r2, r0
 	bne	2b

-	/* switch from FastBus to Synchronous clock mode */
+	/* switch from FastBus to Asynchronous clock mode */
 	mrc	p15, 0, r0, c1, c0, 0
-	orr	r0, r0, #0x40000000	@ set bit 30 (nF) notFastBus
+	orr	r0, r0, #0xC0000000	@ set bit 31 (iA) and 30 (nF)
 	mcr	p15, 0, r0, c1, c0, 0

 	/* everything is fine now */