From a896fd552047fd667af65927fa7ed7502d6193d2 Mon Sep 17 00:00:00 2001
From: jmcneill <jmcneill@NetBSD.org>
Date: Wed, 12 Jun 2019 22:47:03 +0000
Subject: [PATCH] Support configuring ranges where only prefetchable memory is
 defined

---
 sys/arch/arm/fdt/pcihost_fdt.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/sys/arch/arm/fdt/pcihost_fdt.c b/sys/arch/arm/fdt/pcihost_fdt.c
index 331979c5faa8..ef0875d1ae03 100644
--- a/sys/arch/arm/fdt/pcihost_fdt.c
+++ b/sys/arch/arm/fdt/pcihost_fdt.c
@@ -1,4 +1,4 @@
-/* $NetBSD: pcihost_fdt.c,v 1.9 2019/06/12 10:13:44 jmcneill Exp $ */
+/* $NetBSD: pcihost_fdt.c,v 1.10 2019/06/12 22:47:03 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2018 Jared D. McNeill <jmcneill@invisible.ca>
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pcihost_fdt.c,v 1.9 2019/06/12 10:13:44 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pcihost_fdt.c,v 1.10 2019/06/12 22:47:03 jmcneill Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -347,6 +347,11 @@ pcihost_config(struct pcihost_softc *sc)
 		}
 	}
 
+	if (memext == NULL && pmemext != NULL) {
+		memext = pmemext;
+		pmemext = NULL;
+	}
+
 	error = pci_configure_bus(&sc->sc_pc, ioext, memext, pmemext, sc->sc_bus_min, PCIHOST_CACHELINE_SIZE);
 
 	if (ioext)