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      1 /*	$NetBSD: fhc_central.c,v 1.3 2012/03/18 05:26:58 mrg Exp $	*/
      2 /*	$OpenBSD: fhc_central.c,v 1.5 2004/09/27 18:32:35 jason Exp $	*/
      3 
      4 /*
      5  * Copyright (c) 2004 Jason L. Wright (jason (at) thought.net).
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     20  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
     21  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     23  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
     25  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
     26  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     27  * POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 
     30 #include <sys/cdefs.h>
     31 __KERNEL_RCSID(0, "$NetBSD: fhc_central.c,v 1.3 2012/03/18 05:26:58 mrg Exp $");
     32 
     33 #include <sys/types.h>
     34 #include <sys/param.h>
     35 #include <sys/systm.h>
     36 #include <sys/kernel.h>
     37 #include <sys/device.h>
     38 #include <sys/conf.h>
     39 #include <sys/bus.h>
     40 
     41 #include <machine/autoconf.h>
     42 #include <machine/openfirm.h>
     43 
     44 #include <sparc64/dev/centralvar.h>
     45 #include <sparc64/dev/fhcreg.h>
     46 #include <sparc64/dev/fhcvar.h>
     47 
     48 int	fhc_central_match(device_t, cfdata_t, void *);
     49 void	fhc_central_attach(device_t, device_t, void *);
     50 
     51 CFATTACH_DECL_NEW(fhc_central, sizeof(struct fhc_softc),
     52     fhc_central_match, fhc_central_attach, NULL, NULL);
     53 
     54 int
     55 fhc_central_match(device_t parent, cfdata_t match, void *aux)
     56 {
     57 	struct central_attach_args *ca = aux;
     58 
     59 	if (strcmp(ca->ca_name, "fhc") == 0)
     60 		return (1);
     61 	return (0);
     62 }
     63 
     64 void
     65 fhc_central_attach(device_t parent, device_t self, void *aux)
     66 {
     67 	struct fhc_softc *sc = device_private(self);
     68 	struct central_attach_args *ca = aux;
     69 	u_int32_t board;
     70 
     71 	sc->sc_node = ca->ca_node;
     72 	sc->sc_bt = ca->ca_bustag;
     73 	sc->sc_is_central = 1;
     74 
     75 	if (central_bus_map(sc->sc_bt, ca->ca_reg[0].cbr_slot,
     76 	    ca->ca_reg[0].cbr_offset, ca->ca_reg[0].cbr_size, 0,
     77 	    &sc->sc_preg)) {
     78 		printf(": failed to map preg\n");
     79 		return;
     80 	}
     81 
     82 	if (central_bus_map(sc->sc_bt, ca->ca_reg[1].cbr_slot,
     83 	    ca->ca_reg[1].cbr_offset, ca->ca_reg[1].cbr_size, 0,
     84 	    &sc->sc_ireg)) {
     85 		printf(": failed to map ireg\n");
     86 		return;
     87 	}
     88 
     89 	if (central_bus_map(sc->sc_bt, ca->ca_reg[2].cbr_slot,
     90 	    ca->ca_reg[2].cbr_offset, ca->ca_reg[2].cbr_size,
     91 	    BUS_SPACE_MAP_LINEAR, &sc->sc_freg)) {
     92 		printf(": failed to map freg\n");
     93 		return;
     94 	}
     95 
     96 	if (central_bus_map(sc->sc_bt, ca->ca_reg[3].cbr_slot,
     97 	    ca->ca_reg[3].cbr_offset, ca->ca_reg[3].cbr_size,
     98 	    BUS_SPACE_MAP_LINEAR, &sc->sc_sreg)) {
     99 		printf(": failed to map sreg\n");
    100 		return;
    101 	}
    102 
    103 	if (central_bus_map(sc->sc_bt, ca->ca_reg[4].cbr_slot,
    104 	    ca->ca_reg[4].cbr_offset, ca->ca_reg[4].cbr_size,
    105 	    BUS_SPACE_MAP_LINEAR, &sc->sc_ureg)) {
    106 		printf(": failed to map ureg\n");
    107 		return;
    108 	}
    109 
    110 	if (central_bus_map(sc->sc_bt, ca->ca_reg[5].cbr_slot,
    111 	    ca->ca_reg[5].cbr_offset, ca->ca_reg[5].cbr_size,
    112 	    BUS_SPACE_MAP_LINEAR, &sc->sc_treg)) {
    113 		printf(": failed to map treg\n");
    114 		return;
    115 	}
    116 
    117 	board = bus_space_read_4(sc->sc_bt, sc->sc_preg, FHC_P_BSR);
    118 	sc->sc_board = ((board >> 16) & 0x1) | ((board >> 12) & 0xe);
    119 	sc->sc_dev = self;
    120 
    121 	fhc_attach(sc);
    122 	return;
    123 }
    124