1 /* $NetBSD: if_sm_gxio.c,v 1.9 2010/08/28 04:33:00 kiyohara 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 * 50 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 51 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 52 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 53 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 54 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 55 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 56 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 57 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 58 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 59 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 60 * POSSIBILITY OF SUCH DAMAGE. 61 */ 62 63 #include <sys/cdefs.h> 64 __KERNEL_RCSID(0, "$NetBSD: if_sm_gxio.c,v 1.9 2010/08/28 04:33:00 kiyohara Exp $"); 65 66 #include <sys/param.h> 67 #include <sys/device.h> 68 #include <sys/errno.h> 69 70 #include <sys/systm.h> 71 #include <sys/mbuf.h> 72 #include <sys/socket.h> 73 #include <sys/ioctl.h> 74 #include <sys/syslog.h> 75 #include <sys/select.h> 76 77 #include <net/if.h> 78 #include <net/if_dl.h> 79 #include <net/if_ether.h> 80 #include <net/if_media.h> 81 82 #include <machine/intr.h> 83 #include <machine/bus.h> 84 85 #include <dev/mii/mii.h> 86 #include <dev/mii/miivar.h> 87 88 #include <dev/ic/smc91cxxreg.h> 89 #include <dev/ic/smc91cxxvar.h> 90 91 #include <evbarm/gumstix/gumstixvar.h> 92 93 #include "locators.h" 94 95 96 static int sm_gxio_match(device_t, struct cfdata *, void *); 97 static void sm_gxio_attach(device_t, device_t, void *); 98 99 static int ether_serial_digit = 1; 100 101 struct sm_gxio_softc { 102 struct smc91cxx_softc sc_smc; 103 void *sc_ih; 104 }; 105 106 CFATTACH_DECL(sm_gxio, sizeof(struct sm_gxio_softc), 107 sm_gxio_match, sm_gxio_attach, NULL, NULL); 108 109 110 /* ARGSUSED */ 111 static int 112 sm_gxio_match(device_t parent, struct cfdata *match, void *aux) 113 { 114 struct gxio_attach_args *gxa = aux; 115 bus_space_tag_t iot = gxa->gxa_iot; 116 bus_space_handle_t ioh; 117 uint16_t tmp; 118 int rv = 0; 119 extern const char *smc91cxx_idstrs[]; 120 121 /* Disallow wildcarded values. */ 122 if (gxa->gxa_addr == GXIOCF_ADDR_DEFAULT) 123 return 0; 124 if (gxa->gxa_gpirq == GXIOCF_GPIRQ_DEFAULT) 125 return 0; 126 127 if (bus_space_map(iot, gxa->gxa_addr, SMC_IOSIZE, 0, &ioh) != 0) 128 return 0; 129 130 /* Check that high byte of BANK_SELECT is what we expect. */ 131 tmp = bus_space_read_2(iot, ioh, BANK_SELECT_REG_W); 132 if ((tmp & BSR_DETECT_MASK) != BSR_DETECT_VALUE) 133 goto out; 134 135 /* 136 * Switch to bank 0 and perform the test again. 137 * XXX INVASIVE! 138 */ 139 bus_space_write_2(iot, ioh, BANK_SELECT_REG_W, 0); 140 tmp = bus_space_read_2(iot, ioh, BANK_SELECT_REG_W); 141 if ((tmp & BSR_DETECT_MASK) != BSR_DETECT_VALUE) 142 goto out; 143 144 /* 145 * Check for a recognized chip id. 146 * XXX INVASIVE! 147 */ 148 bus_space_write_2(iot, ioh, BANK_SELECT_REG_W, 3); 149 tmp = bus_space_read_2(iot, ioh, REVISION_REG_W); 150 if (smc91cxx_idstrs[RR_ID(tmp)] == NULL) 151 goto out; 152 153 if (ether_serial_digit > 15) 154 goto out; 155 /* 156 * Assume we have an SMC91Cxx. 157 */ 158 159 rv = 1; 160 161 out: 162 bus_space_unmap(iot, ioh, SMC_IOSIZE); 163 return rv; 164 } 165 166 /* ARGSUSED */ 167 static void 168 sm_gxio_attach(device_t parent, device_t self, void *aux) 169 { 170 struct sm_gxio_softc *gsc = device_private(self); 171 struct smc91cxx_softc *sc = &gsc->sc_smc; 172 struct gxio_attach_args *gxa = aux; 173 bus_space_handle_t ioh; 174 uint8_t myea[ETHER_ADDR_LEN]; 175 176 aprint_normal("\n"); 177 aprint_naive("\n"); 178 179 KASSERT(system_serial_high != 0 || system_serial_low != 0); 180 181 /* Map i/o space. */ 182 if (bus_space_map(gxa->gxa_iot, gxa->gxa_addr, SMC_IOSIZE, 0, &ioh)) 183 panic("sm_gxio_attach: can't map i/o space"); 184 185 sc->sc_bst = gxa->gxa_iot; 186 sc->sc_bsh = ioh; 187 188 /* should always be enabled */ 189 sc->sc_flags |= SMC_FLAGS_ENABLED; 190 191 myea[0] = ((system_serial_high >> 8) & 0xfe) | 0x02; 192 myea[1] = system_serial_high; 193 myea[2] = system_serial_low >> 24; 194 myea[3] = system_serial_low >> 16; 195 myea[4] = system_serial_low >> 8; 196 myea[5] = (system_serial_low & 0xc0) | 197 (1 << 4) | ((ether_serial_digit++) & 0x0f); 198 smc91cxx_attach(sc, myea); 199 200 /* Establish the interrupt handler. */ 201 gsc->sc_ih = gxio_intr_establish(gxa->gxa_sc, 202 gxa->gxa_gpirq, IST_EDGE_RISING, IPL_NET, smc91cxx_intr, sc); 203 204 if (gsc->sc_ih == NULL) 205 aprint_error_dev(self, 206 "couldn't establish interrupt handler\n"); 207 } 208