Subject: [PATCH 2/9] sky2: more receive shutdown

From: Stephen Hemminger <[email-masked]>
Date: Wed, 17 Jun 2009 10:30:33 -0700

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

Signed-off-by: Stephen Hemminger <[email-masked]>

--- a/drivers/net/sky2.c	2009-06-17 10:29:50.630937431 -0700
+++ b/drivers/net/sky2.c	2009-06-17 10:29:52.005685817 -0700
@@ -1151,7 +1151,14 @@ stopped:
 
 	/* 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 */

--