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From: Pyun YongHyeon <yongari@FreeBSD.org>
Date: Mon, 28 Sep 2009 21:07:19 +0000 (UTC)
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Subject: svn commit: r197591 - head/sys/dev/msk
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Author: yongari
Date: Mon Sep 28 21:07:19 2009
New Revision: 197591
URL: http://svn.freebsd.org/changeset/base/197591

Log:
  Add workaround for Yukon XL which has hardware bug that can't flush
  FIFO.

Modified:
  head/sys/dev/msk/if_msk.c

Modified: head/sys/dev/msk/if_msk.c
==============================================================================
--- head/sys/dev/msk/if_msk.c	Mon Sep 28 21:03:28 2009	(r197590)
+++ head/sys/dev/msk/if_msk.c	Mon Sep 28 21:07:19 2009	(r197591)
@@ -3799,9 +3799,14 @@ msk_init_locked(struct msk_if_softc *sc_
 	/* Set receive filter. */
 	msk_rxfilter(sc_if);
 
-	/* Flush Rx MAC FIFO on any flow control or error. */
-	CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, RX_GMF_FL_MSK),
-	    GMR_FS_ANY_ERR);
+	if (sc->msk_hw_id == CHIP_ID_YUKON_XL) {
+		/* Clear flush mask - HW bug. */
+		CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, RX_GMF_FL_MSK), 0);
+	} else {
+		/* Flush Rx MAC FIFO on any flow control or error. */
+		CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, RX_GMF_FL_MSK),
+		    GMR_FS_ANY_ERR);
+	}
 
 	/*
 	 * Set Rx FIFO flush threshold to 64 bytes + 1 FIFO word