[src/trunk]: src/sys/dev/pci Add DELAY(40) after turning on write DMA state m...

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

details:   https://anonhg.NetBSD.org/src/rev/40f1c6f4ed7e
branches:  trunk
changeset: 785293:40f1c6f4ed7e
user:      msaitoh <msaitoh%NetBSD.org@localhost>
date:      Thu Mar 07 10:57:01 2013 +0000

description:
Add DELAY(40) after turning on write DMA state machine.

diffstat:

 sys/dev/pci/if_bge.c |  7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diffs (28 lines):

diff -r 9bba917a6616 -r 40f1c6f4ed7e sys/dev/pci/if_bge.c
--- a/sys/dev/pci/if_bge.c      Thu Mar 07 09:24:24 2013 +0000
+++ b/sys/dev/pci/if_bge.c      Thu Mar 07 10:57:01 2013 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: if_bge.c,v 1.212 2013/03/07 09:24:24 msaitoh Exp $     */
+/*     $NetBSD: if_bge.c,v 1.213 2013/03/07 10:57:01 msaitoh Exp $     */
 
 /*
  * Copyright (c) 2001 Wind River Systems
@@ -79,7 +79,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_bge.c,v 1.212 2013/03/07 09:24:24 msaitoh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_bge.c,v 1.213 2013/03/07 10:57:01 msaitoh Exp $");
 
 #include "vlan.h"
 
@@ -2345,7 +2345,8 @@
                val |= BGE_WDMAMODE_BURST_ALL_DATA;
 
        /* Turn on write DMA state machine */
-       CSR_WRITE_4(sc, BGE_WDMA_MODE, val);
+       CSR_WRITE_4_FLUSH(sc, BGE_WDMA_MODE, val);
+       DELAY(40);
 
        val = BGE_RDMAMODE_ENABLE | BGE_RDMAMODE_ALL_ATTNS;
        if (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5784 ||