1 /* $NetBSD: sbscd.c,v 1.20 2021/08/07 16:18:59 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. 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 1.20 2021/08/07 16:18:59 thorpej Exp $");
37
38 #include <sys/param.h>
39 #include <sys/device.h>
40 #include <sys/systm.h>
41
42 #include <mips/sibyte/include/sb1250_int.h>
43 #include <mips/sibyte/include/sb1250_regs.h>
44 #include <mips/sibyte/include/sb1250_scd.h>
45 #include <mips/sibyte/include/zbbusvar.h>
46 #include <mips/sibyte/dev/sbscdvar.h>
47
48 #include "locators.h"
49
50 static int sbscd_match(device_t, cfdata_t, void *);
51 static void sbscd_attach(device_t, device_t, void *);
52
53 CFATTACH_DECL_NEW(sbscd, 0,
54 sbscd_match, sbscd_attach, NULL, NULL);
55
56 static int sbscd_print(void *, const char *);
57 static const char *sbscd_device_type_name(enum sbscd_device_type type);
58
59 static const struct sbscd_attach_locs sb1250_sbscd_devs[] = {
60 #if 0
61 { A_IMR_CPU0_BASE,
62 { -1, -1 },
63 SBSCD_DEVTYPE_ICU },
64 #endif
65 { A_SCD_WDOG_0,
66 { K_INT_WATCHDOG_TIMER_0, -1 },
67 SBSCD_DEVTYPE_WDOG },
68 { A_SCD_WDOG_1,
69 { K_INT_WATCHDOG_TIMER_1, -1 },
70 SBSCD_DEVTYPE_WDOG },
71 { A_SCD_TIMER_0,
72 { K_INT_TIMER_0, -1 },
73 SBSCD_DEVTYPE_TIMER },
74 { A_SCD_TIMER_1,
75 { K_INT_TIMER_1, -1 },
76 SBSCD_DEVTYPE_TIMER },
77 { A_SCD_TIMER_2,
78 { K_INT_TIMER_2, -1 },
79 SBSCD_DEVTYPE_TIMER },
80 { A_SCD_TIMER_3,
81 { K_INT_TIMER_3, -1 },
82 SBSCD_DEVTYPE_TIMER },
83 { A_SCD_JTAG_BASE + 0x1FFA0, /* XXX magic number for jtag addr */
84 { -1, -1 },
85 SBSCD_DEVTYPE_JTAGCONS },
86 /* XXX others */
87 };
88 static const int sb1250_sbscd_dev_count = __arraycount(sb1250_sbscd_devs);
89
90 static int
sbscd_match(device_t parent,cfdata_t match,void * aux)91 sbscd_match(device_t parent, cfdata_t match, void *aux)
92 {
93 struct zbbus_attach_args *zap = aux;
94
95 if (zap->za_locs.za_type != ZBBUS_ENTTYPE_SCD)
96 return (0);
97
98 return 1;
99 }
100
101 static void
sbscd_attach(device_t parent,device_t self,void * aux)102 sbscd_attach(device_t parent, device_t self, void *aux)
103 {
104 struct sbscd_attach_args sa;
105 int i;
106 int locs[SBSCDCF_NLOCS];
107
108 aprint_normal("\n");
109
110 for (i = 0; i < sb1250_sbscd_dev_count; i++) {
111 memset(&sa, 0, sizeof sa);
112 sa.sa_locs = sb1250_sbscd_devs[i];
113
114 locs[SBSCDCF_OFFSET] = sb1250_sbscd_devs[i].sa_offset;
115 locs[SBSCDCF_INTR + 0] =
116 sb1250_sbscd_devs[i].sa_intr[0];
117 locs[SBSCDCF_INTR + 1] =
118 sb1250_sbscd_devs[i].sa_intr[1];
119
120 config_found(self, &sa, sbscd_print,
121 CFARGS(.submatch = config_stdsubmatch,
122 .locators = locs));
123 }
124 return;
125 }
126
127 int
sbscd_print(void * aux,const char * pnp)128 sbscd_print(void *aux, const char *pnp)
129 {
130 struct sbscd_attach_args *sap = aux;
131 int i;
132
133 if (pnp)
134 aprint_normal("%s at %s",
135 sbscd_device_type_name(sap->sa_locs.sa_type), pnp);
136 aprint_normal(" offset 0x%lx", sap->sa_locs.sa_offset);
137 for (i = 0; i < 2; i++) {
138 if (sap->sa_locs.sa_intr[i] != -1)
139 aprint_normal("%s%d", i == 0 ? " intr " : ",",
140 sap->sa_locs.sa_intr[i]);
141 }
142 return (UNCONF);
143 }
144
145 static const char *
sbscd_device_type_name(enum sbscd_device_type type)146 sbscd_device_type_name(enum sbscd_device_type type)
147 {
148
149 switch (type) {
150 case SBSCD_DEVTYPE_ICU:
151 return ("sbicu");
152 case SBSCD_DEVTYPE_WDOG:
153 return ("sbwdog");
154 case SBSCD_DEVTYPE_TIMER:
155 return ("sbtimer");
156 case SBSCD_DEVTYPE_JTAGCONS:
157 return ("sbjcn");
158
159 }
160 panic("sbscd_device_type_name");
161 return ("panic");
162 }
163