1 /*- 2 * Copyright 2015 Justin Hibbits 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * From: FreeBSD: src/sys/powerpc/mpc85xx/pci_ocp.c,v 1.9 2010/03/23 23:46:28 marcel 29 */ 30 31 #include <sys/param.h> 32 #include <sys/systm.h> 33 #include <sys/ktr.h> 34 #include <sys/sockio.h> 35 #include <sys/mbuf.h> 36 #include <sys/malloc.h> 37 #include <sys/kernel.h> 38 #include <sys/module.h> 39 #include <sys/socket.h> 40 #include <sys/queue.h> 41 #include <sys/bus.h> 42 #include <sys/lock.h> 43 #include <sys/mutex.h> 44 #include <sys/rman.h> 45 #include <sys/endian.h> 46 47 #include <vm/vm.h> 48 #include <vm/pmap.h> 49 50 #include <dev/ofw/openfirm.h> 51 #include <dev/ofw/ofw_pci.h> 52 #include <dev/ofw/ofw_bus.h> 53 #include <dev/ofw/ofw_bus_subr.h> 54 55 #include <dev/pci/pcivar.h> 56 #include <dev/pci/pcireg.h> 57 #include <dev/pci/pcib_private.h> 58 59 #include <machine/intr_machdep.h> 60 61 #include "pcib_if.h" 62 63 DECLARE_CLASS(ofw_pcib_pci_driver); 64 65 struct fsl_pcib_softc { 66 /* 67 * This is here so that we can use pci bridge methods, too - the 68 * generic routines only need the dev, secbus and subbus members 69 * filled. 70 * 71 * XXX: This should be extracted from ofw_pcib_pci.c, and shared in a 72 * header. 73 */ 74 struct pcib_softc ops_pcib_sc; 75 phandle_t ops_node; 76 struct ofw_bus_iinfo ops_iinfo; 77 }; 78 79 static int 80 fsl_pcib_rc_probe(device_t dev) 81 { 82 83 if (pci_get_vendor(dev) != 0x1957) 84 return (ENXIO); 85 if (pci_get_progif(dev) != 0) 86 return (ENXIO); 87 if (pci_get_class(dev) != PCIC_PROCESSOR) 88 return (ENXIO); 89 if (pci_get_subclass(dev) != PCIS_PROCESSOR_POWERPC) 90 return (ENXIO); 91 92 device_set_desc(dev, "MPC85xx Root Complex bridge"); 93 94 return (BUS_PROBE_DEFAULT); 95 } 96 97 static device_method_t fsl_pcib_rc_methods[] = { 98 DEVMETHOD(device_probe, fsl_pcib_rc_probe), 99 DEVMETHOD_END 100 }; 101 102 DEFINE_CLASS_1(pcib, fsl_pcib_rc_driver, fsl_pcib_rc_methods, 103 sizeof(struct fsl_pcib_softc), ofw_pcib_pci_driver); 104 EARLY_DRIVER_MODULE(rcpcib, pci, fsl_pcib_rc_driver, 0, 0, BUS_PASS_BUS); 105