From 66af65c8ff6d1b939c1f09e063f7df17c8cbd910 Mon Sep 17 00:00:00 2001
From: aleph <aleph@38d2e660-2303-0410-9eaa-f027e97ec537>
Date: Tue, 5 Oct 2010 16:47:01 +0000
Subject: [PATCH] sam3n port: set flash wait states before activating fast
 clock

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@4414 38d2e660-2303-0410-9eaa-f027e97ec537
---
 bertos/cpu/cortex-m3/drv/clock_sam3.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/bertos/cpu/cortex-m3/drv/clock_sam3.c b/bertos/cpu/cortex-m3/drv/clock_sam3.c
index b0486c51..fef0f125 100644
--- a/bertos/cpu/cortex-m3/drv/clock_sam3.c
+++ b/bertos/cpu/cortex-m3/drv/clock_sam3.c
@@ -38,6 +38,7 @@
 #include "clock_sam3.h"
 #include <io/sam3_pmc.h>
 #include <io/sam3_sysctl.h>
+#include <io/sam3_flash.h>
 #include <cfg/compiler.h>
 #include <cfg/macros.h>
 
@@ -90,6 +91,9 @@ void clock_init(void)
 {
 	uint32_t timeout;
 
+	/* Set 4 wait states for flash access, needed for higher CPU clock rates */
+	EEFC_FMR_R = EEFC_FMR_FWS(3);
+
 	// Select external slow clock
 	if (!(SUPC_SR_R & SUPC_SR_OSCSEL))
 	{
-- 
2.25.1