From f65ee52752d697b68910e48ddf196b1b07cfb0d7 Mon Sep 17 00:00:00 2001
From: patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>
Date: Tue, 10 Jul 2012 16:10:38 +0000
Subject: [PATCH] LPC43xx fix:  Logic was disabling XTAL, not enabling it

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4924 42af7a65-404d-4744-a932-0658087f49c3
---
 arch/arm/src/lpc43xx/lpc43_cgu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/src/lpc43xx/lpc43_cgu.c b/arch/arm/src/lpc43xx/lpc43_cgu.c
index 036da2697c..180d17bda6 100644
--- a/arch/arm/src/lpc43xx/lpc43_cgu.c
+++ b/arch/arm/src/lpc43xx/lpc43_cgu.c
@@ -151,9 +151,9 @@ static inline void lpc43_xtalconfig(void)
 #endif
   putreg32(regval, LPC43_XTAL_OSC_CTRL);
 
-  /* Enable the crystal oscillator */
+  /* Enable the crystal oscillator by taking it out of power down mode */
 
-  regval |= XTAL_OSC_CTRL_ENABLE;
+  regval &= ~XTAL_OSC_CTRL_ENABLE;
   putreg32(regval, LPC43_XTAL_OSC_CTRL);
 
   /* Delay for stable clock input */