[src/trunk]: src/sys/dev/ic Configure interrupt polarity before enabling PHY.

[slp <slp%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/d92dcb42487f
branches:  trunk
changeset: 336060:d92dcb42487f
user:      slp <slp%NetBSD.org@localhost>
date:      Mon Feb 09 07:53:39 2015 +0000

description:
Configure interrupt polarity before enabling PHY.

This prevents a interrupt storm when running under QEMU.

diffstat:

 sys/dev/ic/lan9118.c |  8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

diffs (29 lines):

diff -r 065e74bc9208 -r d92dcb42487f sys/dev/ic/lan9118.c
--- a/sys/dev/ic/lan9118.c      Mon Feb 09 07:50:24 2015 +0000
+++ b/sys/dev/ic/lan9118.c      Mon Feb 09 07:53:39 2015 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: lan9118.c,v 1.17 2014/08/10 16:44:35 tls Exp $ */
+/*     $NetBSD: lan9118.c,v 1.18 2015/02/09 07:53:39 slp Exp $ */
 /*
  * Copyright (c) 2008 KIYOHARA Takashi
  * All rights reserved.
@@ -25,7 +25,7 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: lan9118.c,v 1.17 2014/08/10 16:44:35 tls Exp $");
+__KERNEL_RCSID(0, "$NetBSD: lan9118.c,v 1.18 2015/02/09 07:53:39 slp Exp $");
 
 /*
  * The LAN9118 Family
@@ -169,6 +169,10 @@
                return EINVAL;
        }
 
+       /* Configure interrupt polarity */
+       bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_IRQ_CFG,
+           LAN9118_IRQ_CFG_IRQ_TYPE | LAN9118_IRQ_CFG_IRQ_POL);
+
        val = bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_ID_REV);
        sc->sc_id = LAN9118_ID_REV_ID(val);
        sc->sc_rev = LAN9118_ID_REV_REV(val);