From c16e7cd67527e91a2203104c6e45762b1ee5f197 Mon Sep 17 00:00:00 2001
From: pirofti <pirofti@openbsd.org>
Date: Sat, 19 Jul 2014 18:01:23 +0000
Subject: [PATCH] Bring back pci_dopm, but disable it before powerdown.

This fixes both the Lemote reboot issue and the USB issue on the
Gdium's that miod@ spotted.

Suggested by kettenis@, thanks!

Okay miod@
---
 sys/arch/loongson/dev/apm.c          | 7 ++++++-
 sys/arch/loongson/loongson/machdep.c | 6 ++++--
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/sys/arch/loongson/dev/apm.c b/sys/arch/loongson/dev/apm.c
index 4534e871215..4693d4cf18d 100644
--- a/sys/arch/loongson/dev/apm.c
+++ b/sys/arch/loongson/dev/apm.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: apm.c,v 1.22 2014/07/19 12:54:09 pirofti Exp $	*/
+/*	$OpenBSD: apm.c,v 1.23 2014/07/19 18:01:23 pirofti Exp $	*/
 
 /*-
  * Copyright (c) 2001 Alexander Guy.  All rights reserved.
@@ -51,6 +51,8 @@
 #include <machine/cpu.h>
 #include <machine/apmvar.h>
 
+#include <dev/pci/pcivar.h>    /* pci_dopm */
+
 #include <dev/wscons/wsdisplayvar.h>
 
 #include <loongson/dev/kb3310var.h>
@@ -132,6 +134,9 @@ apmmatch(struct device *parent, void *match, void *aux)
 void
 apmattach(struct device *parent, struct device *self, void *aux)
 {
+	/* Enable PCI Power Management. */
+	pci_dopm = 1;
+
 	printf("\n");
 }
 
diff --git a/sys/arch/loongson/loongson/machdep.c b/sys/arch/loongson/loongson/machdep.c
index 29c41a1b40d..60f2a66f214 100644
--- a/sys/arch/loongson/loongson/machdep.c
+++ b/sys/arch/loongson/loongson/machdep.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: machdep.c,v 1.56 2014/07/13 22:53:39 uebayasi Exp $ */
+/*	$OpenBSD: machdep.c,v 1.57 2014/07/19 18:01:23 pirofti Exp $ */
 
 /*
  * Copyright (c) 2009, 2010, 2014 Miodrag Vallat.
@@ -936,8 +936,10 @@ boot(int howto)
 haltsys:
 	doshutdownhooks();
 	mainbus = device_mainbus();
-	if (mainbus != NULL)
+	if (mainbus != NULL) {
+		pci_dopm = 0;
 		config_suspend(mainbus, DVACT_POWERDOWN);
+	}
 
 	if (howto & RB_HALT) {
 		if (howto & RB_POWERDOWN) {
-- 
2.20.1