Add a new HT-PCI bridge driver and the necessary glue to openpic(4)

to get interrupts working on U4 machines.

With this OpenBSD can run on PowerMac11,2 (Quad G5).

With inputs from and ok kettenis@, miod@, dlg@

2 files changed, 10 insertions, 3 deletions

diff --git a/sys/arch/macppc/conf/GENERIC b/sys/arch/macppc/conf/GENERIC
index b5cb4f3a3f2..dbfab3c4d36 100644
--- a/sys/arch/macppc/conf/GENERIC
+++ b/sys/arch/macppc/conf/GENERIC
@@ -1,4 +1,4 @@
-#	$OpenBSD: GENERIC,v 1.250 2015/05/30 18:14:08 jsg Exp $g
+#	$OpenBSD: GENERIC,v 1.251 2015/06/02 13:53:43 mpi Exp $g
 #
 # For further information on compiling OpenBSD kernels, see the config(8)
 # man page.
@@ -46,7 +46,9 @@ smu*		at mainbus0
 pci*		at mpcpcibr?
 pci*		at ht?
 ppb*		at pci?		# PCI-PCI bridges
+hpb*		at pci?
 pci*		at ppb?
+pci*		at hpb?
 
 siop*		at pci?
 fxp*		at pci?
diff --git a/sys/arch/macppc/conf/files.macppc b/sys/arch/macppc/conf/files.macppc
index 28c6cd7d6ec..9aa971eebc1 100644
--- a/sys/arch/macppc/conf/files.macppc
+++ b/sys/arch/macppc/conf/files.macppc
@@ -1,4 +1,4 @@
-#	$OpenBSD: files.macppc,v 1.81 2015/05/11 06:46:21 ratchov Exp $
+#	$OpenBSD: files.macppc,v 1.82 2015/06/02 13:53:43 mpi Exp $
 
 #
 # macppc-specific configuration info
@@ -86,7 +86,12 @@ include "dev/wscons/files.wscons"
 
 #file	arch/macppc/pci/bandit.c			pci
 
-#PCI-Host bridge chipsets
+# HT bridge
+device  hpb {} : pcibus
+attach	hpb at pci
+file	arch/macppc/pci/hpb.c				hpb needs-flag
+
+# PCI-Host bridge chipsets
 device  pchb: agpbus
 attach	pchb at pci
 file	arch/macppc/pci/pchb.c				pchb