From 62c4a8945f410ea5a1d65d72d86420c72172f2ff Mon Sep 17 00:00:00 2001
From: Matthew Dillon <dillon@dragonflybsd.org>
Date: Tue, 20 May 2008 18:23:33 +0000
Subject: [PATCH] Add a DELAY(500) during the register init phase to give the
 device some time to initialize before attempting to read its memory space.

Taken-From: FreeBSD
---
 sys/bus/firewire/fwohci.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sys/bus/firewire/fwohci.c b/sys/bus/firewire/fwohci.c
index bb266f1e16..2868c185c9 100644
--- a/sys/bus/firewire/fwohci.c
+++ b/sys/bus/firewire/fwohci.c
@@ -33,7 +33,7 @@
  * 
  * $FreeBSD: src/sys/dev/firewire/fwohci.c,v 1.72 2004/01/22 14:41:17 simokawa Exp $
  * $FreeBSD: src/sys/dev/firewire/fwohci.c,v 1.1.2.19 2003/05/01 06:24:37 simokawa Exp $
- * $DragonFly: src/sys/bus/firewire/fwohci.c,v 1.17 2008/04/20 13:44:25 swildner Exp $
+ * $DragonFly: src/sys/bus/firewire/fwohci.c,v 1.18 2008/05/20 18:23:33 dillon Exp $
  */
 
 #define ATRQ_CH 0
@@ -426,6 +426,8 @@ fwohci_probe_phy(struct fwohci_softc *sc, device_t dev)
  *    It is not actually available port on your PC .
  */
 	OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_LPS);
+	DELAY(500);
+
 	reg = fwphy_rddata(sc, FW_PHY_SPD_REG);
 
 	if((reg >> 5) != 7 ){
-- 
2.41.0