From e8cd00835ebcae4681e9a673bf33318687756eff Mon Sep 17 00:00:00 2001
From: =?utf8?q?Markus=20Klotzb=FCcher?= <Markus Klotzbümk@pollux.(none)>
Date: Tue, 28 Feb 2006 23:11:07 +0100
Subject: [PATCH] All subsystem clocks not immediately need are turned at
reset.
---
cpu/pxa/start.S | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/cpu/pxa/start.S b/cpu/pxa/start.S
index 994082691d..159447efe3 100644
--- a/cpu/pxa/start.S
+++ b/cpu/pxa/start.S
@@ -30,6 +30,7 @@
#include <config.h>
#include <version.h>
+#include <asm/arch/pxa-regs.h>
.globl _start
_start: b reset
@@ -217,6 +218,15 @@ cpu_init_crit:
mov r1, #0
mcr p6, 0, r1, c1, c0, 0 @ ICMR
mcr p6, 0, r1, c7, c0, 0 @ ICMR2
+
+ /* turn off all clocks but the ones we will definitly require */
+ ldr r1, =CKENA
+ ldr r2, =(CKENA_22_FFUART | CKENA_10_SRAM | CKENA_9_SMC | CKENA_8_DMC)
+ str r2, [r1]
+ ldr r1, =CKENB
+ ldr r2, =(CKENB_6_IRQ)
+ str r2, [r1]
+
#endif
#ifndef CONFIG_CPU_MONAHANS
--
2.39.5