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sbscd.c revision 1.6 
      1 /* $NetBSD: sbscd.c,v 1.6 2003/01/01 01:48:55 thorpej Exp $ */
      2 
      3 /*
      4  * Copyright 2000, 2001
      5  * Broadcom Corporation. All rights reserved.
      6  *
      7  * This software is furnished under license and may be used and copied only
      8  * in accordance with the following terms and conditions.  Subject to these
      9  * conditions, you may download, copy, install, use, modify and distribute
     10  * modified or unmodified copies of this software in source and/or binary
     11  * form. No title or ownership is transferred hereby.
     12  *
     13  * 1) Any source code used, modified or distributed must reproduce and
     14  *    retain this copyright notice and list of conditions as they appear in
     15  *    the source file.
     16  *
     17  * 2) No right is granted to use any trade name, trademark, or logo of
     18  *    Broadcom Corporation. Neither the "Broadcom Corporation" name nor any
     19  *    trademark or logo of Broadcom Corporation may be used to endorse or
     20  *    promote products derived from this software without the prior written
     21  *    permission of Broadcom Corporation.
     22  *
     23  * 3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR IMPLIED
     24  *    WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF
     25  *    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
     26  *    NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM BE LIABLE
     27  *    FOR ANY DAMAGES WHATSOEVER, AND IN PARTICULAR, BROADCOM SHALL NOT BE
     28  *    LIABLE FOR DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     29  *    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     30  *    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
     31  *    BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     32  *    WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
     33  *    OR OTHERWISE), EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     34  */
     35 
     36 #include <sys/param.h>
     37 #include <sys/device.h>
     38 #include <sys/systm.h>
     39 
     40 #include <mips/sibyte/include/zbbusvar.h>
     41 #include <mips/sibyte/dev/sbscdvar.h>
     42 
     43 #include "locators.h"
     44 
     45 static int	sbscd_match(struct device *, struct cfdata *, void *);
     46 static void	sbscd_attach(struct device *, struct device *, void *);
     47 
     48 CFATTACH_DECL(sbscd, sizeof(struct device),
     49     sbscd_match, sbscd_attach, NULL, NULL);
     50 
     51 static int	sbscd_print(void *, const char *);
     52 static int	sbscd_submatch(struct device *, struct cfdata *, void *);
     53 static const char *sbscd_device_type_name(enum sbscd_device_type type);
     54 
     55 static const struct sbscd_attach_locs sb1250_sbscd_devs[] = {
     56 #if 0
     57 	{ 0x20000, {-1,-1},	SBSCD_DEVTYPE_ICU,		},
     58 #endif
     59 	{ 0x20050, {0,-1},	SBSCD_DEVTYPE_WDOG,		},
     60 	{ 0x20150, {1,-1},	SBSCD_DEVTYPE_WDOG,		},
     61 	{ 0x20070, {2,-1},	SBSCD_DEVTYPE_TIMER,		},
     62 	{ 0x20078, {3,-1},	SBSCD_DEVTYPE_TIMER,		},
     63 	{ 0x20170, {4,-1},	SBSCD_DEVTYPE_TIMER,		},
     64 	{ 0x20178, {5,-1},	SBSCD_DEVTYPE_TIMER,		},
     65 	{ 0x1FFA0, {-1,-1},	SBSCD_DEVTYPE_JTAGCONS,		},
     66 	/* XXX others */
     67 };
     68 static const int sb1250_sbscd_dev_count =
     69     sizeof sb1250_sbscd_devs / sizeof sb1250_sbscd_devs[0];
     70 
     71 static int
     72 sbscd_match(struct device *parent, struct cfdata *match, void *aux)
     73 {
     74 	struct zbbus_attach_args *zap = aux;
     75 
     76 	if (zap->za_locs.za_type != ZBBUS_ENTTYPE_SCD)
     77 		return (0);
     78 
     79 	return 1;
     80 }
     81 
     82 static void
     83 sbscd_attach(struct device *parent, struct device *self, void *aux)
     84 {
     85 	struct sbscd_attach_args sa;
     86 	int i;
     87 
     88 	printf("\n");
     89 
     90 	for (i = 0; i < sb1250_sbscd_dev_count; i++) {
     91 		memset(&sa, 0, sizeof sa);
     92 		sa.sa_base = 0x10000000;			/* XXXCGD */
     93 		sa.sa_locs = sb1250_sbscd_devs[i];
     94 		config_found_sm(self, &sa, sbscd_print, sbscd_submatch);
     95 	}
     96 	return;
     97 }
     98 
     99 int
    100 sbscd_print(void *aux, const char *pnp)
    101 {
    102 	struct sbscd_attach_args *sap = aux;
    103 	int i;
    104 
    105 	if (pnp)
    106 		aprint_normal("%s at %s",
    107 		    sbscd_device_type_name(sap->sa_locs.sa_type), pnp);
    108 	aprint_normal(" offset 0x%lx", (long)sap->sa_locs.sa_offset);
    109 	for (i = 0; i < 2; i++) {
    110 		if (sap->sa_locs.sa_intr[i] != -1)
    111 			aprint_normal("%s%ld", i == 0 ? " intr " : ",",
    112 			    (long)sap->sa_locs.sa_intr[i]);
    113 	}
    114 	return (UNCONF);
    115 }
    116 
    117 static int
    118 sbscd_submatch(struct device *parent, struct cfdata *cf, void *aux)
    119 {
    120 	struct sbscd_attach_args *sap = aux;
    121 	int i;
    122 
    123 	if (cf->cf_loc[SBSCDCF_OFFSET] != SBSCDCF_OFFSET_DEFAULT &&
    124 	    cf->cf_loc[SBSCDCF_OFFSET] != sap->sa_locs.sa_offset)
    125 		return (0);
    126 
    127 	for (i = 0; i < 2; i++) {
    128 		if (cf->cf_loc[SBSCDCF_INTR + i] != SBSCDCF_INTR_DEFAULT &&
    129 		    cf->cf_loc[SBSCDCF_INTR + i] != sap->sa_locs.sa_intr[i])
    130 			return (0);
    131 	}
    132 
    133 	return (config_match(parent, cf, aux));
    134 }
    135 
    136 static const char *
    137 sbscd_device_type_name(enum sbscd_device_type type)
    138 {
    139 
    140 	switch (type) {
    141 	case SBSCD_DEVTYPE_ICU:
    142 		return ("sbicu");
    143 	case SBSCD_DEVTYPE_WDOG:
    144 		return ("sbwdog");
    145 	case SBSCD_DEVTYPE_TIMER:
    146 		return ("sbtimer");
    147 	case SBSCD_DEVTYPE_JTAGCONS:
    148 		return ("sbjcn");
    149 
    150 	}
    151 	panic("sbscd_device_type_name");
    152 	return ("panic");
    153 }
    154