1 /* $NetBSD: if_ne_obio.c,v 1.6 2008/03/16 16:08:57 he Exp $ */ 2 3 /* 4 * Copyright (c) 2002, 2003 Genetec corp. All rights reserved. 5 * Written by Hiroyuki Bessho for Genetec corp. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of Genetec corp. may not be used to endorse 16 * or promote products derived from this software without specific prior 17 * written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY GENETEC CORP. ``AS IS'' AND 20 * 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 GENETEC CORP. 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_ne_obio.c,v 1.6 2008/03/16 16:08:57 he Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/mbuf.h> 38 #include <sys/socket.h> 39 #include <sys/ioctl.h> 40 #include <sys/errno.h> 41 #include <sys/syslog.h> 42 #include <sys/select.h> 43 #include <sys/device.h> 44 45 #include <net/if.h> 46 #include <net/if_dl.h> 47 #include <net/if_ether.h> 48 #include <net/if_media.h> 49 50 #include <machine/intr.h> 51 #include <machine/bus.h> 52 53 #include <dev/mii/mii.h> 54 #include <dev/mii/miivar.h> 55 56 #include <dev/ic/dp8390reg.h> 57 #include <dev/ic/dp8390var.h> 58 #include <dev/ic/ne2000reg.h> 59 #include <dev/ic/ne2000var.h> 60 61 #include <evbarm/g42xxeb/g42xxeb_var.h> 62 #include <arm/xscale/pxa2x0var.h> 63 64 struct ne_obio_softc { 65 struct ne2000_softc nsc; 66 67 void *sc_ih; /* interrupt handler */ 68 int intr_no; 69 }; 70 71 int ne_obio_match(device_t, cfdata_t , void *); 72 void ne_obio_attach(device_t, device_t, void *); 73 74 75 CFATTACH_DECL_NEW(ne_obio, sizeof (struct ne_obio_softc), ne_obio_match, 76 ne_obio_attach, NULL, NULL); 77 78 //#define DEBUG_GPIO 2 79 //#define DEBUG_GPIO2 5 80 81 #if 1 82 #define intr_handler dp8390_intr 83 #else 84 #define intr_handler ne_obio_intr 85 86 static int 87 ne_obio_intr(void *arg) 88 { 89 int rv=1; 90 91 #ifdef DEBUG_GPIO 92 //printf( "ne_obio_intr arg=%p\n", arg ); 93 bus_space_write_4( pxa2x0_softc->saip.sc_iot, 94 pxa2x0_softc->saip.sc_gpioh, 95 GPIO_GPSR0, 1U<<DEBUG_GPIO ); 96 #endif 97 98 #if 0 99 while( (rv = dp8390_intr(arg)) != 0) 100 /*continue*/; 101 #else 102 rv = dp8390_intr(arg); 103 #endif 104 105 #ifdef DEBUG_GPIO 106 bus_space_write_4( pxa2x0_softc->saip.sc_iot, 107 pxa2x0_softc->saip.sc_gpioh, 108 GPIO_GPCR0, 1U<<DEBUG_GPIO ); 109 #endif 110 return rv; 111 } 112 #endif 113 114 static int 115 ne_obio_enable(struct dp8390_softc *dsc) 116 { 117 struct ne_obio_softc *sc = (struct ne_obio_softc *)dsc; 118 struct obio_softc *psc; 119 120 aprint_normal_dev(dsc->sc_dev, "enabled\n"); 121 122 psc = device_private(device_parent(dsc->sc_dev)); 123 124 /* Establish the interrupt handler. */ 125 sc->sc_ih = obio_intr_establish(psc, sc->intr_no, IPL_NET, 126 IST_LEVEL_LOW, 127 intr_handler, 128 sc); 129 130 return 0; 131 } 132 133 134 int 135 ne_obio_match(device_t parent, cfdata_t match, void *aux ) 136 { 137 /* XXX: probe? */ 138 return 1; 139 } 140 141 void 142 ne_obio_attach(device_t parent, device_t self, void *aux ) 143 { 144 struct ne_obio_softc *sc = device_private(self); 145 struct obio_attach_args *oba = aux; 146 bus_space_tag_t iot = oba->oba_iot; 147 bus_space_handle_t nioh, aioh; 148 uint8_t my_ea[ETHER_ADDR_LEN]; 149 int i; 150 151 aprint_normal("\n"); 152 sc->nsc.sc_dp8390.sc_dev = self; 153 154 /* Map i/o space. */ 155 if (bus_space_map(iot, oba->oba_addr, NE2000_NPORTS, 0, &nioh)) 156 return; 157 158 if (bus_space_subregion(iot, nioh, NE2000_ASIC_OFFSET, 159 NE2000_ASIC_NPORTS, &aioh)) 160 goto out2; 161 162 sc->nsc.sc_dp8390.sc_regt = iot; 163 sc->nsc.sc_dp8390.sc_regh = nioh; 164 165 sc->nsc.sc_asict = iot; 166 sc->nsc.sc_asich = aioh; 167 168 /* 169 * XXX: 170 * AX88796's reset register doesn't seem to work, and 171 * ne2000_detect() fails. We hardcord NIC type here. 172 */ 173 sc->nsc.sc_type = NE2000_TYPE_NE2000; /* XXX _AX88796 ? */ 174 sc->nsc.sc_dp8390.sc_flags = DP8390_NO_REMOTE_DMA_COMPLETE; 175 /* DP8390_NO_MULTI_BUFFERING; XXX */ 176 177 /* G4250EBX doesn't have EEPROM hooked to AX88796. Read MAC 178 * address set by Redboot and don't let ne2000_atthch() try to 179 * read MAC from hardware. (current ne2000 driver doesn't 180 * support AX88796's EEPROM interface) 181 */ 182 183 bus_space_write_1( iot, nioh, ED_P0_CR, ED_CR_RD2|ED_CR_PAGE_1 ); 184 185 for( i=0; i < ETHER_ADDR_LEN; ++i ) 186 my_ea[i] = bus_space_read_1( iot, nioh, ED_P1_PAR0+i ); 187 188 bus_space_write_1( iot, nioh, ED_P0_CR, ED_CR_RD2|ED_CR_PAGE_0 ); 189 190 /* disable all interrupts */ 191 bus_space_write_1(iot, nioh, ED_P0_IMR, 0); 192 193 #ifdef DEBUG_GPIO 194 bus_space_write_4( pxa2x0_softc->saip.sc_iot, 195 pxa2x0_softc->saip.sc_gpioh, 196 GPIO_GPDR0, (0x01<<DEBUG_GPIO) | (0x01<<DEBUG_GPIO2) | 197 bus_space_read_4(pxa2x0_softc->saip.sc_iot, pxa2x0_softc->saip.sc_gpioh, 198 GPIO_GPDR0)); 199 200 #endif 201 /* delay intr_establish until this IF is enabled 202 to avoid spurious interrupts. */ 203 sc->nsc.sc_dp8390.sc_enabled = 0; 204 sc->nsc.sc_dp8390.sc_enable = ne_obio_enable; 205 sc->intr_no = oba->oba_intr; 206 207 if( ne2000_attach( &sc->nsc, my_ea ) ) 208 goto out; 209 210 #ifndef ED_DCR_RDCR 211 #define ED_DCR_RDCR 0 212 #endif 213 214 bus_space_write_1(iot, nioh, ED_P0_DCR, ED_DCR_RDCR|ED_DCR_WTS); 215 216 return; 217 218 out: 219 bus_space_unmap( iot, aioh, NE2000_ASIC_NPORTS ); 220 out2: 221 bus_space_unmap( iot, nioh, NE2000_NPORTS ); 222 return; 223 } 224 225 #if 0 226 void debug_obio_ne(struct dp8390_softc *); 227 void 228 debug_obio_ne(struct dp8390_softc *sc) 229 { 230 struct obio_softc *osc = 231 (struct obio_softc *)device_parent(&sc->sc_dev); 232 struct pxa2x0_softc *psc = 233 (struct pxa2x0_softc *)device_parent(&osc->sc_dev); 234 235 printf( "ISR=%02x obio: pending=(%x,%x) mask=%x pending=%x mask=%x\n", 236 bus_space_read_1(sc->sc_regt, sc->sc_regh, 237 ED_P0_ISR ), 238 bus_space_read_2(osc->sc_iot, osc->sc_obioreg_ioh, G4250EBX_INTSTS1), 239 bus_space_read_2(osc->sc_iot, osc->sc_obioreg_ioh, G4250EBX_INTSTS2), 240 bus_space_read_2(osc->sc_iot, osc->sc_obioreg_ioh, G4250EBX_INTMASK), 241 osc->sc_intr_pending, 242 osc->sc_intr_mask ); 243 244 printf( "intc: mask=%08x pending=%08x\n", 245 bus_space_read_4(psc->saip.sc_iot, psc->saip.sc_ioh, SAIPIC_MR ), 246 bus_space_read_4(psc->saip.sc_iot, psc->saip.sc_ioh, SAIPIC_IP ) ); 247 } 248 #endif 249 250 #ifdef DEBUG_GPIO2 251 void dp8390_debug_overrun(void); 252 void dp8390_debug_overrun(void) 253 { 254 static int toggle=0; 255 256 //printf( "ne_obio_intr arg=%p\n", arg ); 257 bus_space_write_4( pxa2x0_softc->saip.sc_iot, 258 pxa2x0_softc->saip.sc_gpioh, 259 toggle ? GPIO_GPCR0 : GPIO_GPSR0, 260 1U<<DEBUG_GPIO2 ); 261 toggle ^= 1; 262 263 } 264 #endif 265