1 files changed, 65 insertions, 0 deletions
diff --git a/qemu/roms/SLOF/slof/fs/pci-bridge.fs b/qemu/roms/SLOF/slof/fs/pci-bridge.fs
new file mode 100644
index 000000000..e6af7b65c
--- /dev/null
+++ b/qemu/roms/SLOF/slof/fs/pci-bridge.fs
@@ -0,0 +1,65 @@
+\ *****************************************************************************
+\ * Copyright (c) 2004, 2008 IBM Corporation
+\ * All rights reserved.
+\ * This program and the accompanying materials
+\ * are made available under the terms of the BSD License
+\ * which accompanies this distribution, and is available at
+\ * http://www.opensource.org/licenses/bsd-license.php
+\ *
+\ * Contributors:
+\ *     IBM Corporation - initial implementation
+\ ****************************************************************************/
+
+\ get the PUID from the node above
+get-node CONSTANT my-phandle
+s" my-puid" my-phandle parent $call-static CONSTANT my-puid
+
+\ Save the bus number provided by this bridge
+pci-bus-number 1+ CONSTANT my-bus
+
+s" pci-config-bridge.fs" included
+s" dma-function.fs" included
+
+\ generate the rom-fs filename from the vendor and device ID "pci-bridge_VENDORID_DEVICEID.fs"
+: filename ( -- str len )
+  s" pci-bridge_"
+  my-space pci-vendor@ 4 int2str $cat
+  s" _" $cat
+  my-space pci-device@ 4 int2str $cat
+  s" .fs" $cat
+;
+
+\ Set up the Bridge with either default or special settings
+: setup ( -- )
+        \ is there special handling for this device, given vendor and device id?
+        filename romfs-lookup ?dup
+                IF
+                        \ give it a special treatment
+                        evaluate
+                ELSE
+                        \ no special handling for this device, attempt autoconfiguration
+                        my-space pci-class-name type 2a emit cr
+                        my-space pci-bridge-generic-setup
+                        my-space pci-reset-2nd
+                THEN
+;
+
+\ Disable Bus Master, Memory Space and I/O Space for
+\ this device and so for the scanning for the devices behind
+pci-device-disable
+
+\ Enalbe #PERR and #SERR reporting
+pci-error-enable
+
+\ Print out device information
+my-space 42 pci-out     \ config-addr ascii('B')
+
+\ and set up the bridge
+setup
+
+\ And enable Bus Master IO and MEM access again.
+\ we need that on bridges so that the devices behind
+\ can set their state on their own.
+pci-master-enable
+pci-mem-enable
+pci-io-enable