From: Sven Schnelle <svens@stackframe.org>
Date: Tue, 10 Jan 2012 11:16:38 +0000 (+0100)
Subject: i945: fix tsc udelay()
X-Git-Url: http://wien.tomnetworks.com/gitweb/?p=coreboot.git;a=commitdiff_plain;h=784ffb3db694dd2c964d9a4e1c6657a835b2d141

i945: fix tsc udelay()

The comparision is the wrong way round: as long as tsc
is below tsc1, the timeout is not reached

Change-Id: I75de74ef750b5a45be0156efaf10d7239a0b1136
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-on: http://review.coreboot.org/530
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
---

diff --git a/src/northbridge/intel/i945/udelay.c b/src/northbridge/intel/i945/udelay.c
index 6b3882bc1..9170335bd 100644
--- a/src/northbridge/intel/i945/udelay.c
+++ b/src/northbridge/intel/i945/udelay.c
@@ -78,7 +78,7 @@ void udelay(u32 us)
 
 	do {
 		tsc = rdtsc();
-	} while ((tsc.hi > tsc1.hi)
-		 || ((tsc.hi == tsc1.hi) && (tsc.lo > tsc1.lo)));
+	} while ((tsc.hi < tsc1.hi)
+		 || ((tsc.hi == tsc1.hi) && (tsc.lo < tsc1.lo)));
 
 }