1 /* 2 * Copyright (C) 2016 Cavium Inc. 3 * All rights reserved. 4 * 5 * Developed by Semihalf. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, 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 #include <sys/cdefs.h> 29 __FBSDID("$FreeBSD$"); 30 31 #include "opt_platform.h" 32 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/malloc.h> 36 #include <sys/types.h> 37 #include <sys/sysctl.h> 38 #include <sys/kernel.h> 39 #include <sys/rman.h> 40 #include <sys/module.h> 41 #include <sys/bus.h> 42 #include <sys/endian.h> 43 #include <sys/cpuset.h> 44 45 #include <dev/ofw/openfirm.h> 46 #include <dev/ofw/ofw_bus.h> 47 #include <dev/ofw/ofw_bus_subr.h> 48 49 #include <dev/pci/pcivar.h> 50 #include <dev/pci/pcireg.h> 51 #include <dev/pci/pcib_private.h> 52 #include <dev/pci/pci_host_generic.h> 53 54 #include "thunder_pcie_common.h" 55 #include "thunder_pcie_pem.h" 56 57 static int thunder_pem_fdt_probe(device_t); 58 59 static device_method_t thunder_pem_fdt_methods[] = { 60 /* Device interface */ 61 DEVMETHOD(device_probe, thunder_pem_fdt_probe), 62 63 /* End */ 64 DEVMETHOD_END 65 }; 66 67 DEFINE_CLASS_1(pcib, thunder_pem_fdt_driver, thunder_pem_fdt_methods, 68 sizeof(struct thunder_pem_softc), thunder_pem_driver); 69 70 static devclass_t thunder_pem_fdt_devclass; 71 72 DRIVER_MODULE(thunder_pem, simplebus, thunder_pem_fdt_driver, 73 thunder_pem_fdt_devclass, 0, 0); 74 DRIVER_MODULE(thunder_pem, ofwbus, thunder_pem_fdt_driver, 75 thunder_pem_fdt_devclass, 0, 0); 76 77 static int 78 thunder_pem_fdt_probe(device_t dev) 79 { 80 81 if (!ofw_bus_status_okay(dev)) 82 return (ENXIO); 83 84 if (ofw_bus_is_compatible(dev, "cavium,pci-host-thunder-pem")) { 85 device_set_desc(dev, THUNDER_PEM_DESC); 86 return (BUS_PROBE_DEFAULT); 87 } 88 89 return (ENXIO); 90 } 91