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sbscd.c revision 1.1 
      1 /* $NetBSD: sbscd.c,v 1.1 2002/03/05 23:46:42 simonb 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 struct cfattach sbscd_ca = {
     49 	sizeof(struct device), sbscd_match, sbscd_attach
     50 };
     51 
     52 static int	sbscd_print(void *, const char *);
     53 static int	sbscd_submatch(struct device *, struct cfdata *, void *);
     54 static const char *sbscd_device_type_name(enum sbscd_device_type type);
     55 
     56 static const struct sbscd_attach_locs sb1250_sbscd_devs[] = {
     57 #if 0
     58 	{ 0x20000, {-1,-1},	SBSCD_DEVTYPE_ICU,		},
     59 #endif
     60 	{ 0x20050, {0,-1},	SBSCD_DEVTYPE_WDOG,		},
     61 	{ 0x20150, {1,-1},	SBSCD_DEVTYPE_WDOG,		},
     62 	{ 0x20070, {2,-1},	SBSCD_DEVTYPE_TIMER,		},
     63 	{ 0x20078, {3,-1},	SBSCD_DEVTYPE_TIMER,		},
     64 	{ 0x20170, {4,-1},	SBSCD_DEVTYPE_TIMER,		},
     65 	{ 0x20178, {5,-1},	SBSCD_DEVTYPE_TIMER,		},
     66 	{ 0x1FFA0, {-1,-1},	SBSCD_DEVTYPE_JTAGCONS,		},
     67 	/* XXX others */
     68 };
     69 static const int sb1250_sbscd_dev_count =
     70     sizeof sb1250_sbscd_devs / sizeof sb1250_sbscd_devs[0];
     71 
     72 static int
     73 sbscd_match(struct device *parent, struct cfdata *match, void *aux)
     74 {
     75 	struct zbbus_attach_args *zap = aux;
     76 
     77 	if (zap->za_locs.za_type != ZBBUS_ENTTYPE_SCD)
     78 		return (0);
     79 
     80 	return 1;
     81 }
     82 
     83 static void
     84 sbscd_attach(struct device *parent, struct device *self, void *aux)
     85 {
     86 	struct sbscd_attach_args sa;
     87 	int i;
     88 
     89 	printf("\n");
     90 
     91 	for (i = 0; i < sb1250_sbscd_dev_count; i++) {
     92 		memset(&sa, 0, sizeof sa);
     93 		sa.sa_base = 0x10000000;			/* XXXCGD */
     94 		sa.sa_locs = sb1250_sbscd_devs[i];
     95 		config_found_sm(self, &sa, sbscd_print, sbscd_submatch);
     96 	}
     97 	return;
     98 }
     99 
    100 int
    101 sbscd_print(void *aux, const char *pnp)
    102 {
    103 	struct sbscd_attach_args *sap = aux;
    104 	int i;
    105 
    106 	if (pnp)
    107 		printf("%s at %s",
    108 		    sbscd_device_type_name(sap->sa_locs.sa_type), pnp);
    109 	printf(" offset 0x%lx", (long)sap->sa_locs.sa_offset);
    110 	for (i = 0; i < 2; i++) {
    111 		if (sap->sa_locs.sa_intr[i] != -1)
    112 			printf("%s%ld", i == 0 ? " intr " : ",",
    113 			    (long)sap->sa_locs.sa_intr[i]);
    114 	}
    115 	return (UNCONF);
    116 }
    117 
    118 static int
    119 sbscd_submatch(struct device *parent, struct cfdata *cf, void *aux)
    120 {
    121 	struct sbscd_attach_args *sap = aux;
    122 	int i;
    123 
    124 	if (cf->cf_loc[SBSCDCF_OFFSET] != SBSCDCF_OFFSET_DEFAULT &&
    125 	    cf->cf_loc[SBSCDCF_OFFSET] != sap->sa_locs.sa_offset)
    126 		return (0);
    127 
    128 	for (i = 0; i < 2; i++) {
    129 		if (cf->cf_loc[SBSCDCF_INTR + i] != SBSCDCF_INTR_DEFAULT &&
    130 		    cf->cf_loc[SBSCDCF_INTR + i] != sap->sa_locs.sa_intr[i])
    131 			return (0);
    132 	}
    133 
    134 	return ((*cf->cf_attach->ca_match)(parent, cf, aux));
    135 }
    136 
    137 static const char *
    138 sbscd_device_type_name(enum sbscd_device_type type)
    139 {
    140 
    141 	switch (type) {
    142 	case SBSCD_DEVTYPE_ICU:
    143 		return ("sbicu");
    144 	case SBSCD_DEVTYPE_WDOG:
    145 		return ("sbwdog");
    146 	case SBSCD_DEVTYPE_TIMER:
    147 		return ("sbtimer");
    148 	case SBSCD_DEVTYPE_JTAGCONS:
    149 		return ("sbjcn");
    150 
    151 	}
    152 	panic("sbscd_device_type_name");
    153 	return ("panic");
    154 }
    155