From: Emilian Medve <Emilian.Medve@freescale.com>
Date: Tue, 30 Jan 2007 22:14:50 +0000 (-0600)
Subject: mpc83xx: Fix alternating tx error / tx buffer not ready bug in QE UEC
X-Git-Tag: v2008.10-rc1~1006^2~16
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a28899c910024a0226331df07207b1038c300c93;p=platform%2Fkernel%2Fu-boot.git

mpc83xx: Fix alternating tx error / tx buffer not ready bug in QE UEC

The problem is not gcc4 but the code itself. The BD_STATUS() macro can't
be used for busy-waiting since it strips the 'volatile' property from
the bd variable. gcc3 was working by pure luck.

This is a follow on patch to "Fix the UEC driver bug of QE"
---

diff --git a/drivers/qe/uec.c b/drivers/qe/uec.c
index aea455b..c416a67 100644
--- a/drivers/qe/uec.c
+++ b/drivers/qe/uec.c
@@ -1148,7 +1148,7 @@ static int uec_send(struct eth_device* dev, volatile void *buf, int len)
 	/* Init TxBD */
 	BD_DATA_SET(bd, buf);
 	BD_LENGTH_SET(bd, len);
-	status = BD_STATUS(bd);
+	status = bd->status;
 	status &= BD_WRAP;
 	status |= (TxBD_READY | TxBD_LAST);
 	BD_STATUS_SET(bd, status);