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ixp425_sip.c revision 1.15 
      1 /*	$NetBSD: ixp425_sip.c,v 1.15 2021/08/07 16:18:46 thorpej Exp $ */
      2 
      3 /*
      4  * Copyright (c) 2003
      5  *	Ichiro FUKUHARA <ichiro (at) ichiro.org>.
      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 ICHIRO FUKUHARA ``AS IS'' AND ANY EXPRESS OR
     18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  * IN NO EVENT SHALL ICHIRO FUKUHARA OR THE VOICES IN HIS HEAD BE LIABLE FOR
     21  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     27  * SUCH DAMAGE.
     28  */
     29 
     30 #include <sys/cdefs.h>
     31 __KERNEL_RCSID(0, "$NetBSD: ixp425_sip.c,v 1.15 2021/08/07 16:18:46 thorpej Exp $");
     32 
     33 /*
     34  * Slow peripheral bus of IXP425 Processor
     35  */
     36 
     37 #include <sys/param.h>
     38 #include <sys/systm.h>
     39 #include <sys/device.h>
     40 
     41 #include <machine/autoconf.h>
     42 #include <sys/bus.h>
     43 
     44 #include <arm/xscale/ixp425var.h>
     45 #include <arm/xscale/ixp425_sipvar.h>
     46 
     47 #include "locators.h"
     48 
     49 static int	ixpsip_match(device_t, cfdata_t, void *);
     50 static void	ixpsip_attach(device_t, device_t, void *);
     51 static int	ixpsip_search(device_t, cfdata_t, const int *, void *);
     52 static int	ixpsip_print(void *, const char *);
     53 
     54 CFATTACH_DECL_NEW(ixpsip, sizeof(struct ixpsip_softc),
     55 		ixpsip_match, ixpsip_attach, NULL, NULL);
     56 
     57 struct ixpsip_softc *ixpsip_softc;
     58 
     59 int
     60 ixpsip_match(device_t parent, cfdata_t cf, void *aux)
     61 {
     62 	return (1);
     63 }
     64 
     65 void
     66 ixpsip_attach(device_t parent, device_t self, void *aux)
     67 {
     68 	struct ixpsip_softc *sc = device_private(self);
     69 	sc->sc_iot = &ixp425_bs_tag;
     70 
     71 	ixpsip_softc = sc;
     72 
     73 	printf("\n");
     74 
     75 	if (bus_space_map(sc->sc_iot, IXP425_EXP_HWBASE, IXP425_EXP_SIZE,
     76 	    0, &sc->sc_ioh)) {
     77 		printf("%s: Can't map expansion bus control registers!\n",
     78 		    device_xname(self));
     79 		return;
     80 	}
     81 
     82 	/*
     83 	 *  Attach each devices
     84 	 */
     85 	config_search(self, NULL,
     86 	    CFARGS(.search = ixpsip_search));
     87 }
     88 
     89 int
     90 ixpsip_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
     91 {
     92 	struct ixpsip_softc *sc = device_private(parent);
     93 	struct ixpsip_attach_args sa;
     94 
     95 	sa.sa_iot = sc->sc_iot;
     96 	sa.sa_addr = cf->cf_loc[IXPSIPCF_ADDR];
     97 	sa.sa_size = cf->cf_loc[IXPSIPCF_SIZE];
     98 	sa.sa_index = cf->cf_loc[IXPSIPCF_INDEX];
     99 	sa.sa_intr = cf->cf_loc[IXPSIPCF_INTR];
    100 
    101 	if (config_probe(parent, cf, &sa))
    102 		config_attach(parent, cf, &sa, ixpsip_print, CFARGS_NONE);
    103 
    104 	return (0);
    105 }
    106 
    107 static int
    108 ixpsip_print(void *aux, const char *name)
    109 {
    110 	struct ixpsip_attach_args *sa = aux;
    111 
    112 	if (sa->sa_size)
    113 		aprint_normal(" addr 0x%lx", sa->sa_addr);
    114 	if (sa->sa_size > 1)
    115 		aprint_normal("-0x%lx", sa->sa_addr + sa->sa_size - 1);
    116 	if (sa->sa_index > 1)
    117 		aprint_normal(" index %d", sa->sa_index);
    118 	if (sa->sa_intr > 1)
    119 		aprint_normal(" intr %d", sa->sa_intr);
    120 
    121 	return (UNCONF);
    122 }
    123