if_cs_smdk24x0.c revision 1.2
1/* $NetBSD: if_cs_smdk24x0.c,v 1.2 2005/12/11 12:17:09 christos Exp $ */ 2 3/* 4 * Copyright (c) 2003 Genetec corporation. All rights reserved. 5 * Written by Hiroyuki Bessho for Genetec corporation. 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 corporation 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/* derived from sys/dev/isa/if_cs_isa.c */ 33/* 34 * Copyright 1997 35 * Digital Equipment Corporation. All rights reserved. 36 * 37 * This software is furnished under license and may be used and 38 * copied only in accordance with the following terms and conditions. 39 * Subject to these conditions, you may download, copy, install, 40 * use, modify and distribute this software in source and/or binary 41 * form. No title or ownership is transferred hereby. 42 * 43 * 1) Any source code used, modified or distributed must reproduce 44 * and retain this copyright notice and list of conditions as 45 * they appear in the source file. 46 * 47 * 2) No right is granted to use any trade name, trademark, or logo of 48 * Digital Equipment Corporation. Neither the "Digital Equipment 49 * Corporation" name nor any trademark or logo of Digital Equipment 50 * Corporation may be used to endorse or promote products derived 51 * from this software without the prior written permission of 52 * Digital Equipment Corporation. 53 * 54 * 3) This software is provided "AS-IS" and any express or implied 55 * warranties, including but not limited to, any implied warranties 56 * of merchantability, fitness for a particular purpose, or 57 * non-infringement are disclaimed. In no event shall DIGITAL be 58 * liable for any damages whatsoever, and in particular, DIGITAL 59 * shall not be liable for special, indirect, consequential, or 60 * incidental damages or damages for lost profits, loss of 61 * revenue or loss of use, whether such damages arise in contract, 62 * negligence, tort, under statute, in equity, at law or otherwise, 63 * even if advised of the possibility of such damage. 64 */ 65 66/* 67 * driver for SMDK24[10]0's on-board CS8900A Ethernet 68 * 69 * CS8900A is located at CS3 area. 70 * A24=1: I/O access 71 * A24=0: Memory access 72 */ 73 74#include <sys/cdefs.h> 75__KERNEL_RCSID(0, "$NetBSD: if_cs_smdk24x0.c,v 1.2 2005/12/11 12:17:09 christos Exp $"); 76 77#include <sys/param.h> 78#include <sys/systm.h> 79#include <sys/socket.h> 80#include <sys/device.h> 81 82#include "rnd.h" 83#if NRND > 0 84#include <sys/rnd.h> 85#endif 86 87#include <net/if.h> 88#include <net/if_ether.h> 89#include <net/if_media.h> 90 91#include <machine/bus.h> 92#include <machine/intr.h> 93 94#include <arch/arm/s3c2xx0/s3c2410reg.h> 95#include <arch/arm/s3c2xx0/s3c2410var.h> 96 97#include <dev/ic/cs89x0reg.h> 98#include <dev/ic/cs89x0var.h> 99 100#include "locators.h" 101#include "opt_smdk2xx0.h" /* SMDK24X0_ETHER_ADDR_FIXED */ 102 103int cs_ssextio_probe(struct device *, struct cfdata *, void *); 104void cs_ssextio_attach(struct device *, struct device *, void *); 105 106/* 107 * I/O access is done when A24==1. 108 * default value for I/O base address is 0x300 109 */ 110#define IOADDR(base) (base + (1<<24) + 0x0300) 111 112CFATTACH_DECL(cs_ssextio, sizeof(struct cs_softc), 113 cs_ssextio_probe, cs_ssextio_attach, NULL, NULL); 114 115int 116cs_ssextio_probe(struct device *parent, struct cfdata *cf, void *aux) 117{ 118 struct s3c2xx0_attach_args *sa = aux; 119 bus_space_tag_t iot = sa->sa_iot; 120 bus_space_handle_t ioh; 121 struct cs_softc sc; 122 int rv = 0, have_io = 0; 123 vaddr_t ioaddr; 124 125 if (sa->sa_intr == SSEXTIOCF_INTR_DEFAULT) 126 sa->sa_intr = 9; 127 if (sa->sa_addr == SSEXTIOCF_ADDR_DEFAULT) 128 sa->sa_addr = S3C2410_BANK_START(3); 129 130 /* 131 * Map the I/O space. 132 */ 133 ioaddr = IOADDR(sa->sa_addr); 134 if (bus_space_map(iot, ioaddr, CS8900_IOSIZE, 0, &ioh)) 135 goto out; 136 have_io = 1; 137 138 memset(&sc, 0, sizeof sc); 139 sc.sc_iot = iot; 140 sc.sc_ioh = ioh; 141 142 if (0) { 143 int i; 144 145 for (i=0; i <=PKTPG_IND_ADDR; i += 2) { 146 if (i % 16 == 0) 147 printf( "\n%04x: ", i); 148 printf("%04x ", CS_READ_PACKET_PAGE_IO(&sc, i)); 149 } 150 151 } 152 153 /* Verify that it's a Crystal product. */ 154 if (CS_READ_PACKET_PAGE_IO(&sc, PKTPG_EISA_NUM) != EISA_NUM_CRYSTAL) 155 goto out; 156 157 /* 158 * Verify that it's a supported chip. 159 */ 160 switch (CS_READ_PACKET_PAGE_IO(&sc, PKTPG_PRODUCT_ID) & PROD_ID_MASK) { 161 case PROD_ID_CS8900: 162#ifdef notyet 163 case PROD_ID_CS8920: 164 case PROD_ID_CS8920M: 165#endif 166 rv = 1; 167 } 168 169 out: 170 if (have_io) 171 bus_space_unmap(iot, ioh, CS8900_IOSIZE); 172 173 return (rv); 174} 175 176/* media selection: UTP only */ 177static int cs_media[] = { 178 IFM_ETHER|IFM_10_T, 179#if 0 180 IFM_ETHER|IFM_10_T|IFM_FDX, 181#endif 182}; 183 184void 185cs_ssextio_attach(struct device *parent, struct device *self, void *aux) 186{ 187 struct cs_softc *sc = (struct cs_softc *) self; 188 struct s3c2xx0_attach_args *sa = aux; 189 vaddr_t ioaddr; 190#ifdef SMDK24X0_ETHER_ADDR_FIXED 191 static u_int8_t enaddr[ETHER_ADDR_LEN] = {SMDK24X0_ETHER_ADDR_FIXED}; 192#else 193#define enaddr NULL 194#endif 195 196 sc->sc_iot = sc->sc_memt = sa->sa_iot; 197 /* sc_irq is an IRQ number in ISA world. set 10 for INTRQ0 of CS8900A */ 198 sc->sc_irq = 10; 199 200 /* 201 * Map the device. 202 */ 203 ioaddr = IOADDR(sa->sa_addr); 204 if (bus_space_map(sc->sc_iot, ioaddr, CS8900_IOSIZE, 0, &sc->sc_ioh)) { 205 aprint_error(": unable to map i/o space\n"); 206 return; 207 } 208 209 if (bus_space_map(sc->sc_iot, sa->sa_addr, CS8900_MEMSIZE, 210 0, &sc->sc_memh)) 211 aprint_error(": unable to map memory space"); 212 else { 213 sc->sc_cfgflags |= CFGFLG_MEM_MODE; 214 sc->sc_pktpgaddr = sa->sa_addr; 215 } 216 217 /* CS8900A is very slow. (nOE->Data valid: 135ns max.) 218 We need to use IOCHRDY signal */ 219 sc->sc_cfgflags |= CFGFLG_IOCHRDY; 220 221 sc->sc_ih = s3c2410_extint_establish(sa->sa_intr, IPL_NET, IST_EDGE_RISING, 222 cs_intr, sc); 223 if (sc->sc_ih == NULL) { 224 aprint_error(": unable to establish interrupt\n"); 225 return; 226 } 227 228 aprint_normal("\n"); 229 230 /* SMDK24X0 doesn't have EEPRMO hooked to CS8900A */ 231 sc->sc_cfgflags |= CFGFLG_NOT_EEPROM; 232 233 cs_attach(sc, enaddr, cs_media, 234 sizeof(cs_media) / sizeof(cs_media[0]), IFM_ETHER|IFM_10_T); 235} 236