if_gem_pci.c revision 1.4
1 /* $NetBSD: if_gem_pci.c,v 1.4 2001/10/18 03:55:07 thorpej Exp $ */ 2 3 /* 4 * 5 * Copyright (C) 2001 Eduardo Horvath. 6 * All rights reserved. 7 * 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 */ 31 32 /* 33 * PCI bindings for Sun GEM ethernet controllers. 34 */ 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/malloc.h> 39 #include <sys/kernel.h> 40 #include <sys/socket.h> 41 #include <sys/errno.h> 42 #include <sys/device.h> 43 44 #include <machine/endian.h> 45 46 #include <uvm/uvm_extern.h> 47 48 #include <net/if.h> 49 #include <net/if_dl.h> 50 #include <net/if_media.h> 51 #include <net/if_ether.h> 52 53 #if NBPFILTER > 0 54 #include <net/bpf.h> 55 #endif 56 57 #include <machine/bus.h> 58 #include <machine/intr.h> 59 60 #include <dev/mii/mii.h> 61 #include <dev/mii/miivar.h> 62 #include <dev/mii/mii_bitbang.h> 63 64 #include <dev/ic/gemreg.h> 65 #include <dev/ic/gemvar.h> 66 67 #include <dev/pci/pcivar.h> 68 #include <dev/pci/pcireg.h> 69 #include <dev/pci/pcidevs.h> 70 71 /* XXX Should use Properties when that's fleshed out. */ 72 #ifdef macppc 73 #include <dev/ofw/openfirm.h> 74 #endif /* macppc */ 75 76 struct gem_pci_softc { 77 struct gem_softc gsc_gem; /* GEM device */ 78 bus_space_tag_t gsc_memt; 79 bus_space_handle_t gsc_memh; 80 void *gsc_ih; 81 }; 82 83 int gem_match_pci __P((struct device *, struct cfdata *, void *)); 84 void gem_attach_pci __P((struct device *, struct device *, void *)); 85 86 struct cfattach gem_pci_ca = { 87 sizeof(struct gem_pci_softc), gem_match_pci, gem_attach_pci 88 }; 89 90 /* 91 * Attach routines need to be split out to different bus-specific files. 92 */ 93 94 int 95 gem_match_pci(parent, cf, aux) 96 struct device *parent; 97 struct cfdata *cf; 98 void *aux; 99 { 100 struct pci_attach_args *pa = aux; 101 102 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SUN && 103 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_ERINETWORK || 104 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_GEMNETWORK)) 105 return (1); 106 107 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_APPLE && 108 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC || 109 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC2)) 110 return (1); 111 112 113 return (0); 114 } 115 116 void 117 gem_attach_pci(parent, self, aux) 118 struct device *parent, *self; 119 void *aux; 120 { 121 struct pci_attach_args *pa = aux; 122 struct gem_pci_softc *gsc = (void *)self; 123 struct gem_softc *sc = &gsc->gsc_gem; 124 pci_intr_handle_t intrhandle; 125 const char *intrstr; 126 char devinfo[256]; 127 128 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); 129 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 130 131 sc->sc_dmatag = pa->pa_dmat; 132 133 sc->sc_pci = 1; /* XXXXX should all be done in bus_dma. */ 134 135 #define PCI_GEM_BASEADDR (PCI_MAPREG_START + 0x00) 136 137 /* XXX Need to check for a 64-bit mem BAR? */ 138 if (pci_mapreg_map(pa, PCI_GEM_BASEADDR, 139 PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0, 140 &gsc->gsc_memt, &gsc->gsc_memh, NULL, NULL) != 0) 141 { 142 printf("%s: could not map gem registers\n", 143 sc->sc_dev.dv_xname); 144 return; 145 } 146 147 sc->sc_bustag = gsc->gsc_memt; 148 sc->sc_h = gsc->gsc_memh; 149 150 /* 151 * XXX This should be done with properties, when those are 152 * XXX fleshed out. 153 */ 154 #ifdef __sparc__ 155 { 156 extern void myetheraddr __P((u_char *)); 157 myetheraddr(sc->sc_enaddr); 158 } 159 #endif /* __sparc__ */ 160 #ifdef macppc 161 { 162 int node; 163 164 node = pcidev_to_ofdev(pa->pa_pc, pa->pa_tag); 165 if (node == 0) { 166 printf("%s: unable to locate OpenFirmware node\n", 167 sc->sc_dev.dv_xname); 168 return; 169 } 170 171 OF_getprop(node, "local-mac-address", sc->sc_enaddr, 172 sizeof(sc->sc_enaddr)); 173 } 174 #endif /* macppc */ 175 176 sc->sc_burst = 16; /* XXX */ 177 178 /* 179 * call the main configure 180 */ 181 gem_config(sc); 182 183 if (pci_intr_map(pa, &intrhandle) != 0) { 184 printf("%s: couldn't map interrupt\n", 185 sc->sc_dev.dv_xname); 186 return; /* bus_unmap ? */ 187 } 188 intrstr = pci_intr_string(pa->pa_pc, intrhandle); 189 gsc->gsc_ih = pci_intr_establish(pa->pa_pc, 190 intrhandle, IPL_NET, gem_intr, sc); 191 if (gsc->gsc_ih != NULL) { 192 printf("%s: using %s for interrupt\n", 193 sc->sc_dev.dv_xname, 194 intrstr ? intrstr : "unknown interrupt"); 195 } else { 196 printf("%s: couldn't establish interrupt", 197 sc->sc_dev.dv_xname); 198 if (intrstr != NULL) 199 printf(" at %s", intrstr); 200 printf("\n"); 201 return; 202 } 203 } 204
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