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sbscd.c revision 1.14 
      1 /* $NetBSD: sbscd.c,v 1.14 2008/06/16 08:36:51 cegger 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.  The "Broadcom Corporation" name may not be
     19  *    used to endorse or promote products derived from this software
     20  *    without the prior written permission of Broadcom Corporation.
     21  *
     22  * 3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR IMPLIED
     23  *    WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF
     24  *    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
     25  *    NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM BE LIABLE
     26  *    FOR ANY DAMAGES WHATSOEVER, AND IN PARTICULAR, BROADCOM SHALL NOT BE
     27  *    LIABLE FOR DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     28  *    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     29  *    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
     30  *    BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     31  *    WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
     32  *    OR OTHERWISE), EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     33  */
     34 
     35 #include <sys/cdefs.h>
     36 __KERNEL_RCSID(0, "$NetBSD: sbscd.c,v 1.14 2008/06/16 08:36:51 cegger Exp $");
     37 
     38 #include <sys/param.h>
     39 #include <sys/device.h>
     40 #include <sys/systm.h>
     41 
     42 #include <mips/sibyte/include/zbbusvar.h>
     43 #include <mips/sibyte/dev/sbscdvar.h>
     44 
     45 #include "locators.h"
     46 
     47 static int	sbscd_match(struct device *, struct cfdata *, void *);
     48 static void	sbscd_attach(struct device *, struct device *, void *);
     49 
     50 CFATTACH_DECL(sbscd, sizeof(struct device),
     51     sbscd_match, sbscd_attach, NULL, NULL);
     52 
     53 static int	sbscd_print(void *, const char *);
     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 = __arraycount(sb1250_sbscd_devs);
     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 	int locs[SBSCDCF_NLOCS];
     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 
     96 		locs[SBSCDCF_OFFSET] = sb1250_sbscd_devs[i].sa_offset;
     97 		locs[SBSCDCF_INTR + 0] =
     98 			sb1250_sbscd_devs[i].sa_intr[0];
     99 		locs[SBSCDCF_INTR + 1] =
    100 			sb1250_sbscd_devs[i].sa_intr[1];
    101 
    102 		config_found_sm_loc(self, "sbscd", locs, &sa,
    103 				    sbscd_print, config_stdsubmatch);
    104 	}
    105 	return;
    106 }
    107 
    108 int
    109 sbscd_print(void *aux, const char *pnp)
    110 {
    111 	struct sbscd_attach_args *sap = aux;
    112 	int i;
    113 
    114 	if (pnp)
    115 		aprint_normal("%s at %s",
    116 		    sbscd_device_type_name(sap->sa_locs.sa_type), pnp);
    117 	aprint_normal(" offset 0x%lx", (long)sap->sa_locs.sa_offset);
    118 	for (i = 0; i < 2; i++) {
    119 		if (sap->sa_locs.sa_intr[i] != -1)
    120 			aprint_normal("%s%ld", i == 0 ? " intr " : ",",
    121 			    (long)sap->sa_locs.sa_intr[i]);
    122 	}
    123 	return (UNCONF);
    124 }
    125 
    126 static const char *
    127 sbscd_device_type_name(enum sbscd_device_type type)
    128 {
    129 
    130 	switch (type) {
    131 	case SBSCD_DEVTYPE_ICU:
    132 		return ("sbicu");
    133 	case SBSCD_DEVTYPE_WDOG:
    134 		return ("sbwdog");
    135 	case SBSCD_DEVTYPE_TIMER:
    136 		return ("sbtimer");
    137 	case SBSCD_DEVTYPE_JTAGCONS:
    138 		return ("sbjcn");
    139 
    140 	}
    141 	panic("sbscd_device_type_name");
    142 	return ("panic");
    143 }
    144