if_sm_gxio.c revision 1.1.4.2
1 /* $NetBSD: if_sm_gxio.c,v 1.1.4.2 2006/11/18 21:29:10 ad Exp $ */ 2 /* 3 * Copyright (C) 2005, 2006 WIDE Project and SOUM Corporation. 4 * All rights reserved. 5 * 6 * Written by Takashi Kiyohara and Susumu Miki for WIDE Project and SOUM 7 * Corporation. 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 * 3. Neither the name of the project nor the name of SOUM Corporation 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE PROJECT and SOUM CORPORATION ``AS IS'' 22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT AND SOUM CORPORATION 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 /*- 34 * Copyright (c) 1997 The NetBSD Foundation, Inc. 35 * All rights reserved. 36 * 37 * This code is derived from software contributed to The NetBSD Foundation 38 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 39 * NASA Ames Research Center. 40 * 41 * Redistribution and use in source and binary forms, with or without 42 * modification, are permitted provided that the following conditions 43 * are met: 44 * 1. Redistributions of source code must retain the above copyright 45 * notice, this list of conditions and the following disclaimer. 46 * 2. Redistributions in binary form must reproduce the above copyright 47 * notice, this list of conditions and the following disclaimer in the 48 * documentation and/or other materials provided with the distribution. 49 * 3. All advertising materials mentioning features or use of this software 50 * must display the following acknowledgement: 51 * This product includes software developed by the NetBSD 52 * Foundation, Inc. and its contributors. 53 * 4. Neither the name of The NetBSD Foundation nor the names of its 54 * contributors may be used to endorse or promote products derived 55 * from this software without specific prior written permission. 56 * 57 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 58 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 59 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 60 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 61 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 62 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 63 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 64 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 65 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 66 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 67 * POSSIBILITY OF SUCH DAMAGE. 68 */ 69 70 #include <sys/cdefs.h> 71 __KERNEL_RCSID(0, "$NetBSD: if_sm_gxio.c,v 1.1.4.2 2006/11/18 21:29:10 ad Exp $"); 72 73 #include <sys/param.h> 74 #include <sys/device.h> 75 #include <sys/errno.h> 76 77 #include <sys/systm.h> 78 #include <sys/mbuf.h> 79 #include <sys/socket.h> 80 #include <sys/ioctl.h> 81 #include <sys/syslog.h> 82 #include <sys/select.h> 83 84 #include <net/if.h> 85 #include <net/if_dl.h> 86 #include <net/if_ether.h> 87 #include <net/if_media.h> 88 89 #include <machine/intr.h> 90 #include <machine/bus.h> 91 92 #include <dev/mii/mii.h> 93 #include <dev/mii/miivar.h> 94 95 #include <dev/ic/smc91cxxreg.h> 96 #include <dev/ic/smc91cxxvar.h> 97 98 #include <evbarm/gumstix/gumstixvar.h> 99 100 #include "locators.h" 101 102 103 static int sm_gxio_match(struct device *, struct cfdata *, void *); 104 static void sm_gxio_attach(struct device *, struct device *, void *); 105 106 static int ether_serial_digit = 1; 107 108 struct sm_gxio_softc { 109 struct smc91cxx_softc sc_smc; 110 void *sc_ih; 111 }; 112 113 CFATTACH_DECL(sm_gxio, sizeof(struct sm_gxio_softc), 114 sm_gxio_match, sm_gxio_attach, NULL, NULL); 115 116 117 static int 118 sm_gxio_match(struct device *parent, struct cfdata *match, void *aux) 119 { 120 struct gxio_attach_args *gxa = aux; 121 bus_space_tag_t iot = gxa->gxa_iot; 122 bus_space_handle_t ioh; 123 u_int16_t tmp; 124 int rv = 0; 125 extern const char *smc91cxx_idstrs[]; 126 127 /* Disallow wildcarded values. */ 128 if (gxa->gxa_addr == GXIOCF_ADDR_DEFAULT) 129 return (0); 130 if (gxa->gxa_gpirq == GXIOCF_GPIRQ_DEFAULT) 131 return (0); 132 133 if (bus_space_map(iot, gxa->gxa_addr, SMC_IOSIZE, 0, &ioh) != 0) 134 return (0); 135 136 /* Check that high byte of BANK_SELECT is what we expect. */ 137 tmp = bus_space_read_2(iot, ioh, BANK_SELECT_REG_W); 138 if ((tmp & BSR_DETECT_MASK) != BSR_DETECT_VALUE) 139 goto out; 140 141 /* 142 * Switch to bank 0 and perform the test again. 143 * XXX INVASIVE! 144 */ 145 bus_space_write_1(iot, ioh, BANK_SELECT_REG_W, 0); 146 tmp = bus_space_read_2(iot, ioh, BANK_SELECT_REG_W); 147 if ((tmp & BSR_DETECT_MASK) != BSR_DETECT_VALUE) 148 goto out; 149 150 /* 151 * Check for a recognized chip id. 152 * XXX INVASIVE! 153 */ 154 bus_space_write_1(iot, ioh, BANK_SELECT_REG_W, 3); 155 tmp = bus_space_read_2(iot, ioh, REVISION_REG_W); 156 if (smc91cxx_idstrs[RR_ID(tmp)] == NULL) 157 goto out; 158 159 if (ether_serial_digit > 15) 160 goto out; 161 /* 162 * Assume we have an SMC91Cxx. 163 */ 164 165 rv = 1; 166 167 out: 168 bus_space_unmap(iot, ioh, SMC_IOSIZE); 169 return (rv); 170 } 171 172 void 173 sm_gxio_attach(struct device *parent, struct device *self, void *aux) 174 { 175 struct sm_gxio_softc *gsc = (struct sm_gxio_softc *)self; 176 struct smc91cxx_softc *sc = &gsc->sc_smc; 177 struct gxio_attach_args *gxa = aux; 178 bus_space_handle_t ioh; 179 u_int8_t myea[ETHER_ADDR_LEN]; 180 181 printf("\n"); 182 183 /* Map i/o space. */ 184 if (bus_space_map(gxa->gxa_iot, gxa->gxa_addr, SMC_IOSIZE, 0, &ioh)) 185 panic("sm_gxio_attach: can't map i/o space"); 186 187 sc->sc_bst = gxa->gxa_iot; 188 sc->sc_bsh = ioh; 189 190 /* should always be enabled */ 191 sc->sc_flags |= SMC_FLAGS_ENABLED; 192 193 if (system_serial_high != 0 || system_serial_low != 0) { 194 myea[0] = ((system_serial_high >> 8) & 0xfe) | 0x02; 195 myea[1] = system_serial_high; 196 myea[2] = system_serial_low >> 24; 197 myea[3] = system_serial_low >> 16; 198 myea[4] = system_serial_low >> 8; 199 myea[5] = (system_serial_low & 0xc0) | 200 (1 << 4) | ((ether_serial_digit++) & 0x0f); 201 smc91cxx_attach(sc, myea); 202 } else 203 smc91cxx_attach(sc, NULL); 204 205 /* Establish the interrupt handler. */ 206 gsc->sc_ih = gxio_intr_establish(gxa->gxa_sc, 207 gxa->gxa_gpirq, IST_EDGE_RISING, IPL_NET, smc91cxx_intr, sc); 208 209 if (gsc->sc_ih == NULL) 210 printf("%s: couldn't establish interrupt handler\n", 211 sc->sc_dev.dv_xname); 212 } 213
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