From c0bad0f2e4366d5bbfe0c4a7a80bca8f4b05272b Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <shemminger@vyatta.com>
Date: Wed, 17 Jun 2009 07:30:33 +0000
Subject: [PATCH] sky2: more receive shutdown

Reset more parts of the receive path when device is take offline.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/sky2.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 5de2a9063b2b7..e4e24ee00fb2b 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -1151,7 +1151,14 @@ static void sky2_rx_stop(struct sky2_port *sky2)
 
 	/* reset the Rx prefetch unit */
 	sky2_write32(hw, Y2_QADDR(rxq, PREF_UNIT_CTRL), PREF_UNIT_RST_SET);
-	mmiowb();
+
+	/* Reset the RAM Buffer receive queue */
+	sky2_write8(hw, RB_ADDR(rxq, RB_CTRL), RB_RST_SET);
+
+	/* Reset Rx MAC FIFO */
+	sky2_write8(hw, SK_REG(sky2->port, RX_GMF_CTRL_T), GMF_RST_SET);
+
+	sky2_read8(hw, B0_CTST);
 }
 
 /* Clean out receive buffer area, assumes receiver hardware stopped */
-- 
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