sys/arch/evbarm/smdk2xx0/if_cs_smdk24x0.c

   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
 103 int     cs_ssextio_probe(device_t, cfdata_t, void *);
 104 void    cs_ssextio_attach(device_t, device_t, 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
 112 CFATTACH_DECL_NEW(cs_ssextio, sizeof(struct cs_softc),
 113     cs_ssextio_probe, cs_ssextio_attach, NULL, NULL);
 114
 115 int
 116 cs_ssextio_probe(device_t parent, cfdata_t 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 */
 177 static int cs_media[] = {
 178         IFM_ETHER|IFM_10_T,
 179 #if 0
 180         IFM_ETHER|IFM_10_T|IFM_FDX,
 181 #endif
 182 };
 183
 184 void
 185 cs_ssextio_attach(device_t parent, device_t self, void *aux)
 186 {
 187         struct cs_softc *sc = device_private(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_dev = self;
 197         sc->sc_iot = sc->sc_memt = sa->sa_iot;
 198         /* sc_irq is an IRQ number in ISA world. set 10 for INTRQ0 of CS8900A */
 199         sc->sc_irq = 10;
 200
 201         /*
 202          * Map the device.
 203          */
 204         ioaddr = IOADDR(sa->sa_addr);
 205         if (bus_space_map(sc->sc_iot, ioaddr, CS8900_IOSIZE, 0, &sc->sc_ioh)) {
 206                 aprint_error(": unable to map i/o space\n");
 207                 return;
 208         }
 209
 210         if (bus_space_map(sc->sc_iot, sa->sa_addr, CS8900_MEMSIZE,
 211                           0, &sc->sc_memh))
 212                 aprint_error(": unable to map memory space");
 213         else {
 214                 sc->sc_cfgflags |= CFGFLG_MEM_MODE;
 215                 sc->sc_pktpgaddr = sa->sa_addr;
 216         }
 217
 218         /* CS8900A is very slow. (nOE->Data valid: 135ns max.)
 219            We need to use IOCHRDY signal */
 220         sc->sc_cfgflags |= CFGFLG_IOCHRDY;
 221
 222         sc->sc_ih = s3c2410_extint_establish(sa->sa_intr, IPL_NET, IST_EDGE_RISING,
 223             cs_intr, sc);
 224         if (sc->sc_ih == NULL) {
 225                 aprint_error(": unable to establish interrupt\n");
 226                 return;
 227         }
 228
 229         aprint_normal("\n");
 230
 231         /* SMDK24X0 doesn't have EEPRMO hooked to CS8900A */
 232         sc->sc_cfgflags |= CFGFLG_NOT_EEPROM;
 233
 234         cs_attach(sc, enaddr, cs_media,
 235             sizeof(cs_media) / sizeof(cs_media[0]), IFM_ETHER|IFM_10_T);
 236 }