Add a pcib variant to allow us to fix up interrupt assignments.

We probably want to do something wrt bus enumeration as well at some point.

1 files changed, 118 insertions, 0 deletions

diff --git a/sys/powerpc/ofw/ofw_pcib_pci.c b/sys/powerpc/ofw/ofw_pcib_pci.c
new file mode 100644
index 0000000..6a0e7de
--- /dev/null
+++ b/sys/powerpc/ofw/ofw_pcib_pci.c
@@ -0,0 +1,118 @@
+/*-
+ * Copyright (c) 2000 Michael Smith
+ * Copyright (c) 2000 BSDi
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/malloc.h>
+#include <sys/kernel.h>
+
+#include <dev/ofw/openfirm.h>
+#include <dev/ofw/ofw_pci.h>
+
+#include <powerpc/ofw/ofw_pci.h>
+
+#include <pci/pcivar.h>
+#include <pci/pcireg.h>
+#include <pci/pcib_private.h>
+
+#include "pcib_if.h"
+
+static int	ofw_pcib_pci_probe(device_t bus);
+static int	ofw_pcib_pci_attach(device_t bus);
+
+static device_method_t ofw_pcib_pci_methods[] = {
+	/* Device interface */
+	DEVMETHOD(device_probe,		ofw_pcib_pci_probe),
+	DEVMETHOD(device_attach,		ofw_pcib_pci_attach),
+	DEVMETHOD(device_shutdown,		bus_generic_shutdown),
+	DEVMETHOD(device_suspend,		bus_generic_suspend),
+	DEVMETHOD(device_resume,		bus_generic_resume),
+
+	/* Bus interface */
+	DEVMETHOD(bus_print_child,		bus_generic_print_child),
+	DEVMETHOD(bus_read_ivar,		pcib_read_ivar),
+	DEVMETHOD(bus_write_ivar,		pcib_write_ivar),
+	DEVMETHOD(bus_alloc_resource,	pcib_alloc_resource),
+	DEVMETHOD(bus_release_resource,	bus_generic_release_resource),
+	DEVMETHOD(bus_activate_resource,	bus_generic_activate_resource),
+	DEVMETHOD(bus_deactivate_resource, 	bus_generic_deactivate_resource),
+	DEVMETHOD(bus_setup_intr,		bus_generic_setup_intr),
+	DEVMETHOD(bus_teardown_intr,	bus_generic_teardown_intr),
+
+	/* pcib interface */
+	DEVMETHOD(pcib_maxslots,		pcib_maxslots),
+	DEVMETHOD(pcib_read_config,		pcib_read_config),
+	DEVMETHOD(pcib_write_config,	pcib_write_config),
+	DEVMETHOD(pcib_route_interrupt,	pcib_route_interrupt),
+
+	{0, 0}
+};
+
+static driver_t ofw_pcib_pci_driver = {
+	"pcib",
+	ofw_pcib_pci_methods,
+	sizeof(struct pcib_softc),
+};
+
+DRIVER_MODULE(ofw_pcib, pci, ofw_pcib_pci_driver, pcib_devclass, 0, 0);
+
+static int
+ofw_pcib_pci_probe(device_t dev)
+{
+
+	if ((pci_get_class(dev) != PCIC_BRIDGE) ||
+	    (pci_get_subclass(dev) != PCIS_BRIDGE_PCI)) {
+		return (ENXIO);
+	}
+	if (ofw_pci_find_node(dev) == 0) {
+		return (ENXIO);
+	}
+
+	device_set_desc(dev, "OpenFirmware PCI-PCI bridge");
+	return (-1000);
+}
+
+static int
+ofw_pcib_pci_attach(device_t dev)
+{
+	phandle_t	node;
+	uint32_t	busrange[2];
+
+	node = ofw_pci_find_node(dev);
+	if (OF_getprop(node, "bus-range", busrange, sizeof(busrange)) != 8)
+		return (ENXIO);
+
+	pcib_attach_common(dev);
+
+	ofw_pci_fixup(dev, busrange[0], node);
+
+	device_add_child(dev, "pci", -1);
+
+	return (bus_generic_attach(dev));
+}