sys/arch/newsmips/apbus/if_sn_ap.c

   1 /*      $NetBSD: if_sn_ap.c,v 1.10 2007/03/08 22:08:50 he Exp $ */
   2
   3 /*
   4  * Copyright (C) 1997 Allen Briggs
   5  * All rights reserved.
   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. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed by Allen Briggs
  18  * 4. The name of the author may not be used to endorse or promote products
  19  *    derived from this software without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <sys/cdefs.h>
  34 __KERNEL_RCSID(0, "$NetBSD: if_sn_ap.c,v 1.10 2007/03/08 22:08:50 he Exp $");
  35
  36 #include "opt_inet.h"
  37
  38 #include <sys/param.h>
  39 #include <sys/device.h>
  40 #include <sys/errno.h>
  41 #include <sys/ioctl.h>
  42 #include <sys/socket.h>
  43 #include <sys/syslog.h>
  44 #include <sys/systm.h>
  45
  46 #include <net/if.h>
  47 #include <net/if_ether.h>
  48
  49 #include <machine/cpu.h>
  50 #include <machine/adrsmap.h>
  51
  52 #include <newsmips/apbus/apbusvar.h>
  53 #include <newsmips/apbus/if_snreg.h>
  54 #include <newsmips/apbus/if_snvar.h>
  55
  56 #define SONIC_MACROM_OFFSET     0x40
  57
  58 #define SONIC_APBUS_REG_OFFSET  0x00010000
  59 #define SONIC_APBUS_MEM_OFFSET  0x00020000
  60 #define SONIC_APBUS_CTL_OFFSET  (-0x00100000)
  61
  62 static int      sn_ap_match(device_t, cfdata_t, void *);
  63 static void     sn_ap_attach(device_t, device_t, void *);
  64 static int      sn_ap_getaddr(struct sn_softc *, uint8_t *);
  65
  66 CFATTACH_DECL_NEW(sn_ap, sizeof(struct sn_softc),
  67     sn_ap_match, sn_ap_attach, NULL, NULL);
  68
  69 static int
  70 sn_ap_match(device_t parent, cfdata_t cf, void *aux)
  71 {
  72         struct apbus_attach_args *apa = aux;
  73
  74         if (strcmp(apa->apa_name, "sonic") != 0)
  75                 return 0;
  76
  77         return 1;
  78 }
  79
  80 /*
  81  * Install interface into kernel networking data structures
  82  */
  83 static void
  84 sn_ap_attach(device_t parent, device_t self, void *aux)
  85 {
  86         struct sn_softc *sc = device_private(self);
  87         struct apbus_attach_args *apa = aux;
  88         uint8_t myaddr[ETHER_ADDR_LEN];
  89         u_int intrmask;
  90
  91         sc->sc_dev = self;
  92         sc->sc_hwbase = (void *)apa->apa_hwbase;
  93         sc->sc_regbase = (void *)(apa->apa_hwbase + SONIC_APBUS_REG_OFFSET);
  94         sc->space = (void *)(apa->apa_hwbase + SONIC_APBUS_MEM_OFFSET);
  95
  96         aprint_normal(" slot%d addr 0x%lx", apa->apa_slotno, apa->apa_hwbase);
  97
  98         sc->snr_dcr = DCR_WAIT0 | DCR_DMABLOCK | DCR_RFT16 | DCR_TFT16;
  99         sc->snr_dcr2 = 0;
 100         sc->snr_dcr |= DCR_EXBUS;
 101         sc->bitmode = 1;
 102
 103         if (sn_ap_getaddr(sc, myaddr)) {
 104                 aprint_error(": failed to get MAC address\n");
 105                 return;
 106         }
 107
 108         aprint_normal("\n");
 109
 110         /* snsetup returns 1 if something fails */
 111         if (snsetup(sc, myaddr))
 112                 return;
 113
 114         intrmask = (apa->apa_slotno == 0) ?
 115             NEWS5000_INT0_SONIC : SLOTTOMASK(apa->apa_slotno);
 116
 117         apbus_intr_establish(0, /* interrupt level (0 or 1) */
 118             intrmask,
 119             0, /* priority */
 120             snintr, sc, apa->apa_name, apa->apa_ctlnum);
 121 }
 122
 123 int
 124 sn_ap_getaddr(struct sn_softc *sc, uint8_t *lladdr)
 125 {
 126         uint32_t *p;
 127         int i;
 128
 129         p = (uint32_t *)((uint8_t *)sc->sc_hwbase + SONIC_MACROM_OFFSET);
 130         for (i = 0; i < ETHER_ADDR_LEN; i++) {
 131                 int h = *p++ & 0x0f;
 132                 int l = *p++ & 0x0f;
 133                 *lladdr++ = (h << 4) + l;
 134         }
 135
 136         return 0;
 137 }
 138
 139 #define APSONIC_INT_MASK        0x00007f00      /* XXX */
 140 #define APSONIC_INT_REG(base)   (((u_long)(base) & 0xffc00000) | 0x00100000)
 141
 142 void
 143 sn_md_init(struct sn_softc *sc)
 144 {
 145         volatile uint32_t *reg = (uint32_t *)APSONIC_INT_REG(sc->sc_hwbase);
 146
 147         *reg = APSONIC_INT_MASK;
 148         wbflush();
 149         apbus_wbflush();
 150         delay(10000);
 151 }