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      1 /*	$NetBSD: if_sn_ap.c,v 1.13 2018/10/14 00:10:11 tsutsui 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 1.13 2018/10/14 00:10:11 tsutsui 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 #include <newsmips/newsmips/machid.h>
     57 
     58 #define SONIC_MACROM_OFFSET	0x40
     59 
     60 #define SONIC_APBUS_REG_OFFSET	0x00010000
     61 #define SONIC_APBUS_MEM_OFFSET	0x00020000
     62 #define SONIC_APBUS_CTL_OFFSET	(-0x00100000)
     63 
     64 static int	sn_ap_match(device_t, cfdata_t, void *);
     65 static void	sn_ap_attach(device_t, device_t, void *);
     66 static int	sn_ap_getaddr(struct sn_softc *, uint8_t *);
     67 
     68 CFATTACH_DECL_NEW(sn_ap, sizeof(struct sn_softc),
     69     sn_ap_match, sn_ap_attach, NULL, NULL);
     70 
     71 static int
     72 sn_ap_match(device_t parent, cfdata_t cf, void *aux)
     73 {
     74 	struct apbus_attach_args *apa = aux;
     75 
     76 	if (strcmp(apa->apa_name, "sonic") != 0)
     77 		return 0;
     78 
     79 	return 1;
     80 }
     81 
     82 /*
     83  * Install interface into kernel networking data structures
     84  */
     85 static void
     86 sn_ap_attach(device_t parent, device_t self, void *aux)
     87 {
     88 	struct sn_softc *sc = device_private(self);
     89 	struct apbus_attach_args *apa = aux;
     90 	uint8_t myaddr[ETHER_ADDR_LEN];
     91 	uint32_t intrmask = 0;
     92 
     93 	sc->sc_dev = self;
     94 	sc->slotno = apa->apa_slotno;
     95 	if (systype == NEWS4000 && sc->slotno == 0) {
     96 		sc->sc_flags |= F_NWS40S0;
     97 	}
     98 	if ((sc->sc_flags & F_NWS40S0) != 0) {
     99 		sc->sc_hwbase = (void *)apa->apa_hwbase;
    100 		sc->sc_regbase = (void *)apa->apa_hwbase;
    101 		sc->memory = (void *)NEWS4000_SONIC_MEMORY;
    102 		sc->buffer = (void *)NEWS4000_SONIC_BUFFER;
    103 	} else {
    104 		sc->sc_hwbase = (void *)apa->apa_hwbase;
    105 		sc->sc_regbase =
    106 		    (void *)(apa->apa_hwbase + SONIC_APBUS_REG_OFFSET);
    107 		sc->memory =
    108 		    (void *)(apa->apa_hwbase + SONIC_APBUS_MEM_OFFSET);
    109 	}
    110 
    111 	aprint_normal(" slot%d addr 0x%lx", apa->apa_slotno, apa->apa_hwbase);
    112 
    113 	if ((sc->sc_flags & F_NWS40S0) != 0) {
    114 		sc->snr_dcr = DCR_STERM | DCR_TFT28;
    115 		sc->snr_dcr2 = 0x0100;
    116 	} else {
    117 		sc->snr_dcr = DCR_WAIT0 | DCR_DMABLOCK | DCR_RFT16 | DCR_TFT16;
    118 		sc->snr_dcr2 = 0;
    119 		sc->snr_dcr |= DCR_EXBUS;
    120 	}
    121 	sc->bitmode = 1;
    122 
    123 	if (sn_ap_getaddr(sc, myaddr)) {
    124 		aprint_error(": failed to get MAC address\n");
    125 		return;
    126 	}
    127 
    128 	aprint_normal("\n");
    129 
    130 	/* snsetup returns 1 if something fails */
    131 	if (snsetup(sc, myaddr))
    132 		return;
    133 
    134 	if (systype == NEWS5000) {
    135 		intrmask = (apa->apa_slotno == 0) ?
    136 		    NEWS5000_INT0_SONIC : NEWS5000_SLOTTOMASK(apa->apa_slotno);
    137 	}
    138 	if (systype == NEWS4000) {
    139 		intrmask = (apa->apa_slotno == 0) ?
    140 		    NEWS4000_INT0_SONIC : NEWS4000_SLOTTOMASK(apa->apa_slotno);
    141 	}
    142 
    143 	apbus_intr_establish(0, /* interrupt level (0 or 1) */
    144 	    intrmask,
    145 	    0, /* priority */
    146 	    snintr, sc, device_xname(self), apa->apa_ctlnum);
    147 }
    148 
    149 int
    150 sn_ap_getaddr(struct sn_softc *sc, uint8_t *lladdr)
    151 {
    152 
    153 	if ((sc->sc_flags & F_NWS40S0) != 0) {
    154 		extern struct idrom idrom;
    155 		memcpy(lladdr, idrom.id_macadrs, sizeof(idrom.id_macadrs));
    156 	} else {
    157 		uint32_t *p;
    158 		int i;
    159 
    160 		p = (uint32_t *)((uint8_t *)sc->sc_hwbase +
    161 		    SONIC_MACROM_OFFSET);
    162 		for (i = 0; i < ETHER_ADDR_LEN; i++) {
    163 			int h = *p++ & 0x0f;
    164 			int l = *p++ & 0x0f;
    165 			*lladdr++ = (h << 4) + l;
    166 		}
    167 	}
    168 
    169 	return 0;
    170 }
    171 
    172 #define APSONIC_INT_MASK	0x00007f00	/* XXX */
    173 #define	APSONIC_INT_REG(base)	(((u_long)(base) & 0xffc00000) | 0x00100000)
    174 
    175 void
    176 sn_md_init(struct sn_softc *sc)
    177 {
    178 
    179 	if ((sc->sc_flags & F_NWS40S0) != 0) {
    180 		*(volatile uint32_t *)0xbf700000 = 1;
    181 	} else {
    182 		volatile uint32_t *reg =
    183 		    (uint32_t *)APSONIC_INT_REG(sc->sc_hwbase);
    184 
    185 		*reg = APSONIC_INT_MASK;
    186 	}
    187 	wbflush();
    188 	apbus_wbflush();
    189 	delay(10000);
    190 }
    191