1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
37 #include <dev/ofw/openfirm.h>
38 #include <dev/ofw/ofw_pci.h>
39 #include <dev/ofw/ofw_bus.h>
40 #include <dev/ofw/ofw_bus_subr.h>
42 #include <dev/pci/pcivar.h>
43 #include <dev/pci/pcireg.h>
44 #include <dev/pci/pcib_private.h>
52 static phandle_t ofw_pcib_pci_get_node(device_t bus, device_t dev);
53 static int	ofw_pcib_pci_route_interrupt(device_t bridge, device_t dev,
73          * This is here so that we can use pci bridge methods, too - the
74          * generic routines only need the dev, secbus and subbus members
84 EARLY_DRIVER_MODULE(ofw_pcib, pci, ofw_pcib_pci_driver, 0, 0, BUS_PASS_BUS);
87 ofw_pcib_pci_probe(device_t dev)  in ofw_pcib_pci_probe()  argument
90 	if ((pci_get_class(dev) != PCIC_BRIDGE) ||  in ofw_pcib_pci_probe()
91 	    (pci_get_subclass(dev) != PCIS_BRIDGE_PCI)) {  in ofw_pcib_pci_probe()
95 	if (ofw_bus_get_node(dev) == -1)  in ofw_pcib_pci_probe()
98 	device_set_desc(dev, "OFW PCI-PCI bridge");  in ofw_pcib_pci_probe()
103 ofw_pcib_pci_attach(device_t dev)  in ofw_pcib_pci_attach()  argument
107 	sc = device_get_softc(dev);  in ofw_pcib_pci_attach()
108 	sc->ops_pcib_sc.dev = dev;  in ofw_pcib_pci_attach()
109 	sc->ops_node = ofw_bus_get_node(dev);  in ofw_pcib_pci_attach()
111 	ofw_bus_setup_iinfo(sc->ops_node, &sc->ops_iinfo,  in ofw_pcib_pci_attach()
114 	pcib_attach_common(dev);  in ofw_pcib_pci_attach()
115 	return (pcib_attach_child(dev));  in ofw_pcib_pci_attach()
119 ofw_pcib_pci_get_node(device_t bridge, device_t dev)  in ofw_pcib_pci_get_node()  argument
121 	/* We have only one child, the PCI bus, so pass it our node */  in ofw_pcib_pci_get_node()
127 ofw_pcib_pci_route_interrupt(device_t bridge, device_t dev, int intpin)  in ofw_pcib_pci_route_interrupt()  argument
137 	ii = &sc->ops_iinfo;  in ofw_pcib_pci_route_interrupt()
138 	if (ii->opi_imapsz > 0) {  in ofw_pcib_pci_route_interrupt()
143 		reg.phys_hi = (pci_get_bus(dev) << OFW_PCI_PHYS_HI_BUSSHIFT) |  in ofw_pcib_pci_route_interrupt()
144 		    (pci_get_slot(dev) << OFW_PCI_PHYS_HI_DEVICESHIFT) |  in ofw_pcib_pci_route_interrupt()
145 		    (pci_get_function(dev) << OFW_PCI_PHYS_HI_FUNCTIONSHIFT);  in ofw_pcib_pci_route_interrupt()
147 		intrcells = ofw_bus_lookup_imap(ofw_bus_get_node(dev), ii, &reg,  in ofw_pcib_pci_route_interrupt()
153 			 * it again on higher levels - that causes problems  in ofw_pcib_pci_route_interrupt()
156 			mintr[0] = ofw_bus_map_intr(dev, iparent, intrcells,  in ofw_pcib_pci_route_interrupt()
163 		 * standard PCI swizzle and continue mapping at the parent.  in ofw_pcib_pci_route_interrupt()
165 		return (pcib_route_interrupt(bridge, dev, intpin));  in ofw_pcib_pci_route_interrupt()