1 /* $OpenBSD: if_hme_pci.c,v 1.6 2002/03/14 01:26:58 millert Exp $ */ 2 /* $NetBSD: if_hme_pci.c,v 1.3 2000/12/28 22:59:13 sommerfeld Exp $ */ 3 4 /* 5 * Copyright (c) 2000 Matthew R. Green 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 24 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 26 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 27 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 /* 33 * PCI front-end device driver for the HME ethernet device. 34 */ 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/syslog.h> 39 #include <sys/device.h> 40 #include <sys/malloc.h> 41 #include <sys/socket.h> 42 43 #include <net/if.h> 44 #include <net/if_dl.h> 45 #include <net/if_media.h> 46 47 #ifdef INET 48 #include <netinet/in.h> 49 #include <netinet/in_systm.h> 50 #include <netinet/in_var.h> 51 #include <netinet/ip.h> 52 #include <netinet/if_ether.h> 53 #endif 54 55 #include <dev/mii/mii.h> 56 #include <dev/mii/miivar.h> 57 58 #ifdef __sparc64__ 59 #include <machine/autoconf.h> 60 #include <dev/ofw/openfirm.h> 61 #endif 62 #include <machine/cpu.h> 63 64 #include <dev/pci/pcivar.h> 65 #include <dev/pci/pcireg.h> 66 #include <dev/pci/pcidevs.h> 67 68 #include <dev/ic/hmevar.h> 69 70 struct hme_pci_softc { 71 struct hme_softc hsc_hme; /* HME device */ 72 bus_space_tag_t hsc_memt; 73 bus_space_handle_t hsc_memh; 74 void *hsc_ih; 75 }; 76 77 int hmematch_pci(struct device *, void *, void *); 78 void hmeattach_pci(struct device *, struct device *, void *); 79 80 struct cfattach hme_pci_ca = { 81 sizeof(struct hme_pci_softc), hmematch_pci, hmeattach_pci 82 }; 83 84 int 85 hmematch_pci(parent, vcf, aux) 86 struct device *parent; 87 void *vcf; 88 void *aux; 89 { 90 struct pci_attach_args *pa = aux; 91 92 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SUN && 93 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_HME) 94 return (1); 95 96 return (0); 97 } 98 99 void 100 hmeattach_pci(parent, self, aux) 101 struct device *parent, *self; 102 void *aux; 103 { 104 struct pci_attach_args *pa = aux; 105 struct hme_pci_softc *hsc = (void *)self; 106 struct hme_softc *sc = &hsc->hsc_hme; 107 pci_intr_handle_t intrhandle; 108 /* XXX the following declarations should be elsewhere */ 109 extern void myetheraddr(u_char *); 110 pcireg_t csr; 111 const char *intrstr; 112 int type; 113 114 /* 115 * enable io/memory-space accesses. this is kinda of gross; but 116 * the hme comes up with neither IO space enabled, or memory space. 117 */ 118 if (pa->pa_memt) 119 pa->pa_flags |= PCI_FLAGS_MEM_ENABLED; 120 if (pa->pa_iot) 121 pa->pa_flags |= PCI_FLAGS_IO_ENABLED; 122 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 123 if (pa->pa_memt) { 124 type = PCI_MAPREG_TYPE_MEM; 125 csr |= PCI_COMMAND_MEM_ENABLE; 126 sc->sc_bustag = pa->pa_memt; 127 } else { 128 type = PCI_MAPREG_TYPE_IO; 129 csr |= PCI_COMMAND_IO_ENABLE; 130 sc->sc_bustag = pa->pa_iot; 131 } 132 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 133 csr | PCI_COMMAND_MEM_ENABLE); 134 135 sc->sc_dmatag = pa->pa_dmat; 136 137 sc->sc_pci = 1; /* XXXXX should all be done in bus_dma. */ 138 /* 139 * Map five register banks: 140 * 141 * bank 0: HME SEB registers: +0x0000 142 * bank 1: HME ETX registers: +0x2000 143 * bank 2: HME ERX registers: +0x4000 144 * bank 3: HME MAC registers: +0x6000 145 * bank 4: HME MIF registers: +0x7000 146 * 147 */ 148 149 #define PCI_HME_BASEADDR 0x10 150 if (pci_mapreg_map(pa, PCI_HME_BASEADDR, type, 0, 151 &hsc->hsc_memt, &hsc->hsc_memh, NULL, NULL, 0) != 0) 152 { 153 printf(": could not map hme registers\n"); 154 return; 155 } 156 sc->sc_seb = hsc->hsc_memh; 157 sc->sc_etx = hsc->hsc_memh + 0x2000; 158 sc->sc_erx = hsc->hsc_memh + 0x4000; 159 sc->sc_mac = hsc->hsc_memh + 0x6000; 160 sc->sc_mif = hsc->hsc_memh + 0x7000; 161 162 #ifdef __sparc__ 163 if (OF_getprop(PCITAG_NODE(pa->pa_tag), "local-mac-address", 164 sc->sc_enaddr, ETHER_ADDR_LEN) <= 0) 165 myetheraddr(sc->sc_enaddr); 166 #endif 167 #ifdef __powerpc__ 168 pci_ether_hw_addr(pa->pa_pc, sc->sc_enaddr); 169 #endif 170 171 172 sc->sc_burst = 16; /* XXX */ 173 174 /* 175 * call the main configure 176 */ 177 hme_config(sc); 178 179 if (pci_intr_map(pa, &intrhandle) != 0) { 180 printf("%s: couldn't map interrupt\n", 181 sc->sc_dev.dv_xname); 182 return; /* bus_unmap ? */ 183 } 184 intrstr = pci_intr_string(pa->pa_pc, intrhandle); 185 hsc->hsc_ih = pci_intr_establish(pa->pa_pc, intrhandle, IPL_NET, 186 hme_intr, sc, self->dv_xname); 187 if (hsc->hsc_ih != NULL) { 188 printf("%s: using %s for interrupt\n", 189 sc->sc_dev.dv_xname, 190 intrstr ? intrstr : "unknown interrupt"); 191 } else { 192 printf("%s: couldn't establish interrupt", 193 sc->sc_dev.dv_xname); 194 if (intrstr != NULL) 195 printf(" at %s", intrstr); 196 printf("\n"); 197 return; /* bus_unmap ? */ 198 } 199 } 200