1 /* $NetBSD: if_tlp_ap.c,v 1.16 2023/12/20 04:30:27 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Atsushi Onoe. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: if_tlp_ap.c,v 1.16 2023/12/20 04:30:27 thorpej Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/device.h> 37 #include <sys/errno.h> 38 #include <sys/ioctl.h> 39 #include <sys/socket.h> 40 #include <sys/syslog.h> 41 #include <sys/systm.h> 42 43 #include <net/if.h> 44 #include <net/if_dl.h> 45 #include <net/if_media.h> 46 #include <net/if_ether.h> 47 48 #include <machine/bus.h> 49 #include <machine/intr.h> 50 51 #include <mips/cache.h> 52 53 #include <dev/mii/miivar.h> 54 #include <dev/mii/mii_bitbang.h> 55 56 #include <dev/ic/tulipreg.h> 57 #include <dev/ic/tulipvar.h> 58 59 #include <newsmips/apbus/apbusvar.h> 60 61 #define TLP_AP_ROM 0x00000000 /* AProm entry address */ 62 #define TLP_AP_CFG 0x00040000 /* PCI configuration registers */ 63 #define TLP_AP_CFG_CFID 0x00 /* Identification */ 64 #define TLP_AP_CFG_CFCS 0x04 /* Command and status */ 65 #define TLP_AP_CFG_CFRV 0x08 /* Revision */ 66 #define TLP_AP_CFG_CFLT 0x0c /* Latency timer */ 67 #define TLP_AP_CFG_CBIO 0x10 /* Base I/O address */ 68 #define TLP_AP_CFG_CBMA 0x14 /* Base memory address */ 69 #define TLP_AP_CFG_CFIT 0x3c /* Interrupt */ 70 #define TLP_AP_CSR 0x00080000 /* CSR base address */ 71 #define TLP_AP_RST 0x00100000 /* Board Reset */ 72 73 74 struct tulip_ap_softc { 75 struct tulip_softc sc_tulip; /* real Tulip softc */ 76 bus_space_tag_t sc_cfst; 77 bus_space_handle_t sc_cfsh; 78 }; 79 80 static int tlp_ap_match(device_t, cfdata_t, void *); 81 static void tlp_ap_attach(device_t, device_t, void *); 82 83 CFATTACH_DECL_NEW(tlp_ap, sizeof(struct tulip_ap_softc), 84 tlp_ap_match, tlp_ap_attach, NULL, NULL); 85 86 static void tlp_ap_preinit(struct tulip_softc *); 87 static void tlp_ap_tmsw_init(struct tulip_softc *); 88 static void tlp_ap_getmedia(struct tulip_softc *, struct ifmediareq *); 89 static int tlp_ap_setmedia(struct tulip_softc *); 90 91 const struct tulip_mediasw tlp_ap_mediasw = { 92 tlp_ap_tmsw_init, tlp_ap_getmedia, tlp_ap_setmedia 93 }; 94 95 static int 96 tlp_ap_match(device_t parent, cfdata_t cf, void *aux) 97 { 98 struct apbus_attach_args *apa = aux; 99 100 if (strcmp(apa->apa_name, "cbasetx") != 0) 101 return 0; 102 103 return 1; 104 } 105 106 /* 107 * Install interface into kernel networking data structures 108 */ 109 static void 110 tlp_ap_attach(device_t parent, device_t self, void *aux) 111 { 112 struct tulip_ap_softc *psc = device_private(self); 113 struct tulip_softc *sc = &psc->sc_tulip; 114 struct apbus_attach_args *apa = aux; 115 uint8_t enaddr[ETHER_ADDR_LEN]; 116 u_int intrmask; 117 int i; 118 119 sc->sc_dev = self; 120 121 aprint_normal(" slot%d addr 0x%lx", apa->apa_slotno, apa->apa_hwbase); 122 123 /* PCI configuration register */ 124 psc->sc_cfst = 0; 125 psc->sc_cfsh = apa->apa_hwbase + TLP_AP_CFG; 126 sc->sc_devno = apa->apa_slotno; 127 sc->sc_rev = bus_space_read_4(psc->sc_cfst, psc->sc_cfsh, 128 TLP_AP_CFG_CFRV); 129 switch (bus_space_read_4(psc->sc_cfst, psc->sc_cfsh, TLP_AP_CFG_CFID)) { 130 case 0x00091011: 131 if (sc->sc_rev >= 0x20) 132 sc->sc_chip = TULIP_CHIP_21140A; 133 else 134 sc->sc_chip = TULIP_CHIP_21140; 135 break; 136 default: 137 aprint_error(": unable to handle your board\n"); 138 return; 139 } 140 141 aprint_normal(": %s Ethernet, pass %d.%d\n", 142 tlp_chip_name(sc->sc_chip), 143 (sc->sc_rev >> 4) & 0xf, sc->sc_rev & 0xf); 144 145 /* CSR */ 146 sc->sc_st = 0; 147 sc->sc_sh = apa->apa_hwbase + TLP_AP_CSR; 148 sc->sc_dmat = apbus_dmatag_init(apa); 149 if (sc->sc_dmat == NULL) { 150 aprint_error_dev(self, "cannot allocate memory\n"); 151 return; 152 } 153 154 /* 155 * Initialize bus specific parameters. 156 */ 157 if (mips_cache_info.mci_sdcache_line_size > 0) 158 sc->sc_cacheline = mips_cache_info.mci_sdcache_line_size / 4; 159 else if (mips_cache_info.mci_pdcache_line_size > 0) 160 sc->sc_cacheline = mips_cache_info.mci_pdcache_line_size / 4; 161 else 162 sc->sc_cacheline = 4; 163 sc->sc_maxburst = sc->sc_cacheline; /* XXX */ 164 sc->sc_regshift = 3; 165 sc->sc_flags |= TULIPF_DBO | TULIPF_BLE; /* Big Endian BUS */ 166 sc->sc_flags |= TULIPF_ENABLED; /* No Power Mgmt */ 167 168 /* 169 * Reset hardware. 170 */ 171 bus_space_write_4(0, apa->apa_hwbase + TLP_AP_RST, 0, 1); 172 delay(100); 173 174 /* 175 * Initialize PCI configuration register 176 */ 177 bus_space_write_4(psc->sc_cfst, psc->sc_cfsh, 178 TLP_AP_CFG_CFCS, 0x00000005); /* Master, IO */ 179 bus_space_write_4(psc->sc_cfst, psc->sc_cfsh, 180 TLP_AP_CFG_CFLT, 0x00000100); 181 bus_space_write_4(psc->sc_cfst, psc->sc_cfsh, 182 TLP_AP_CFG_CBIO, MIPS_KSEG1_TO_PHYS(sc->sc_sh)); 183 bus_space_write_4(psc->sc_cfst, psc->sc_cfsh, 184 TLP_AP_CFG_CFIT, 0x00000101); 185 186 /* 187 * Initialize general purpose port register. 188 */ 189 TULIP_WRITE(sc, CSR_GPP, GPP_GPC | 0xc0); /* read */ 190 TULIP_WRITE(sc, CSR_GPP, 0x40); /* dipsw port on */ 191 i = TULIP_READ(sc, CSR_GPP) & GPP_MD; /* dipsw contents */ 192 TULIP_WRITE(sc, CSR_GPP, 0xc0); /* dipsw port off */ 193 TULIP_WRITE(sc, CSR_GPP, GPP_GPC | 0xcf); /* read write */ 194 if (sc->sc_maxburst == 16) { 195 TULIP_WRITE(sc, CSR_GPP, 0x8f); /* 16word burst */ 196 TULIP_WRITE(sc, CSR_GPP, 0xcf); 197 } else { 198 TULIP_WRITE(sc, CSR_GPP, 0x8e); /* 8word burst */ 199 TULIP_WRITE(sc, CSR_GPP, 0xce); 200 } 201 TULIP_WRITE(sc, CSR_GPP, GPP_GPC | 0xcf); /* read write */ 202 TULIP_WRITE(sc, CSR_GPP, 0xc3); /* mask abort/DMA err */ 203 TULIP_WRITE(sc, CSR_GPP, 0xcf); /* mask abort/DMA err */ 204 205 if (tlp_read_srom(sc) == 0) { 206 aprint_error_dev(self, "srom read failed\n"); 207 free(sc->sc_dmat, M_DEVBUF); 208 return; 209 } 210 for (i = 0; i < ETHER_ADDR_LEN; i++) 211 enaddr[i] = sc->sc_srom[0x11 + i * 2]; 212 213 sc->sc_mediasw = &tlp_ap_mediasw; 214 215 /* 216 * Finish off the attach. 217 */ 218 tlp_attach(sc, enaddr); 219 220 intrmask = SLOTTOMASK(apa->apa_slotno); 221 apbus_intr_establish(0, /* interrupt level (0 or 1) */ 222 intrmask, 223 0, /* priority */ 224 tlp_intr, sc, device_xname(self), apa->apa_ctlnum); 225 } 226 227 static void 228 tlp_ap_preinit(struct tulip_softc *sc) 229 { 230 231 sc->sc_opmode |= OPMODE_MBO | OPMODE_SCR | OPMODE_PCS | OPMODE_HBD | 232 OPMODE_PS; 233 TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode); 234 } 235 236 static void 237 tlp_ap_tmsw_init(struct tulip_softc *sc) 238 { 239 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 240 struct mii_data *mii = &sc->sc_mii; 241 242 sc->sc_preinit = tlp_ap_preinit; 243 244 mii->mii_ifp = ifp; 245 mii->mii_readreg = NULL; 246 mii->mii_writereg = NULL; 247 mii->mii_statchg = sc->sc_statchg; 248 ifmedia_init(&mii->mii_media, 0, tlp_mediachange, tlp_mediastatus); 249 ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_100_TX, 0, NULL); 250 ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_100_TX | IFM_FDX, 0, 251 NULL); 252 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_100_TX); 253 } 254 255 static void 256 tlp_ap_getmedia(struct tulip_softc *sc, struct ifmediareq *ifmr) 257 { 258 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 259 260 ifmr->ifm_status = IFM_AVALID; 261 if (ifp->if_flags & IFF_RUNNING) 262 ifmr->ifm_status |= IFM_ACTIVE; 263 ifmr->ifm_active = sc->sc_mii.mii_media_active; 264 } 265 266 static int 267 tlp_ap_setmedia(struct tulip_softc *sc) 268 { 269 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 270 271 sc->sc_mii.mii_media_active = sc->sc_mii.mii_media.ifm_cur->ifm_media; 272 273 if (ifp->if_flags & IFF_UP) 274 tlp_idle(sc, OPMODE_ST | OPMODE_SR); 275 if (sc->sc_mii.mii_media_active & IFM_FDX) 276 sc->sc_opmode |= OPMODE_FD; 277 else 278 sc->sc_opmode &= ~OPMODE_FD; 279 if (ifp->if_flags & IFF_UP) 280 TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode); 281 return 0; 282 } 283
Indexes created Mon Oct 13 16:09:52 GMT 2025