diff --git a/[refs] b/[refs]
index 7557d27972f7..72b2af703133 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 8e54588161577435d64dfb5cfdf40a73a5705ea0
+refs/heads/master: 594a9dfae7113d9601b2c353754c40d0b7e00a03
diff --git a/trunk/drivers/net/bnx2.c b/trunk/drivers/net/bnx2.c
index 00918602ba88..854d80c330ec 100644
--- a/trunk/drivers/net/bnx2.c
+++ b/trunk/drivers/net/bnx2.c
@@ -3934,6 +3934,10 @@ bnx2_reset_chip(struct bnx2 *bp, u32 reset_code)
 		/* Chip reset. */
 		REG_WR(bp, BNX2_PCICFG_MISC_CONFIG, val);
 
+		/* Reading back any register after chip reset will hang the
+		 * bus on 5706 A0 and A1.  The msleep below provides plenty
+		 * of margin for write posting.
+		 */
 		if ((CHIP_ID(bp) == CHIP_ID_5706_A0) ||
 		    (CHIP_ID(bp) == CHIP_ID_5706_A1))
 			msleep(20);