1 /* $NetBSD: mainbus.c,v 1.8 2021/08/07 16:18:52 thorpej Exp $ */
2
3 /*
4 * Copyright (c) 2002 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Lennart Augustsson (lennart@augustsson.net) at Sandburst Corp.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: mainbus.c,v 1.8 2021/08/07 16:18:52 thorpej Exp $");
34
35 #include <sys/param.h>
36 #include <sys/device.h>
37 #include <sys/systm.h>
38
39 #include <sys/bus.h>
40 #include <machine/pmppc.h>
41 #include <arch/evbppc/pmppc/dev/mainbus.h>
42
43 #include <dev/ic/cpc700reg.h>
44
45 #include "locators.h"
46 #include "mainbus.h"
47
48 #if NCPU == 0
49 #error A cpu device is now required
50 #endif
51
52 int mainbus_match(device_t, cfdata_t, void *);
53 void mainbus_attach(device_t, device_t, void *);
54
55 CFATTACH_DECL_NEW(mainbus, 0,
56 mainbus_match, mainbus_attach, NULL, NULL);
57
58 static int mainbus_print(void *, const char *);
59
60 /*
61 * Probe for the mainbus; always succeeds.
62 */
63 int
mainbus_match(device_t parent,cfdata_t match,void * aux)64 mainbus_match(device_t parent, cfdata_t match, void *aux)
65 {
66
67 return 1;
68 }
69
70 static int
mainbus_submatch(device_t parent,cfdata_t cf,const int * ldesc,void * aux)71 mainbus_submatch(device_t parent, cfdata_t cf,
72 const int *ldesc, void *aux)
73 {
74 struct mainbus_attach_args *maa = aux;
75
76 if (cf->cf_loc[MAINBUSCF_ADDR] != maa->mb_addr)
77 return (0);
78
79 return (config_match(parent, cf, aux));
80 }
81
82 static int
mainbus_print(void * aux,const char * pnp)83 mainbus_print(void *aux, const char *pnp)
84 {
85 struct mainbus_attach_args *mba = aux;
86
87 if (pnp)
88 aprint_normal("%s at %s", mba->mb_name, pnp);
89 if (mba->mb_addr != MAINBUSCF_ADDR_DEFAULT)
90 aprint_normal(" addr 0x%08lx", mba->mb_addr);
91 if (mba->mb_irq != MAINBUSCF_IRQ_DEFAULT)
92 aprint_normal(" irq %d", mba->mb_irq);
93 return (UNCONF);
94 }
95
96 /*
97 * Attach the mainbus.
98 */
99 void
mainbus_attach(device_t parent,device_t self,void * aux)100 mainbus_attach(device_t parent, device_t self, void *aux)
101 {
102 struct mainbus_attach_args maa;
103
104 aprint_normal(": Artesyn PM/PPC\n");
105 aprint_normal_dev(self, "%sPCI bus Monarch\n",
106 a_config.a_is_monarch ? "" : "not");
107 aprint_normal_dev(self, "boot from %s, %sECC, %s L2 cache\n",
108 a_config.a_boot_device == A_BOOT_ROM ? "ROM" : "flash",
109 a_config.a_has_ecc ? "" : "no ",
110 a_config.a_l2_cache == A_CACHE_PARITY ? "parity" :
111 a_config.a_l2_cache == A_CACHE_NO_PARITY ? "no-parity" : "no");
112
113 maa.mb_bt = &pmppc_mem_tag;
114
115 maa.mb_name = "cpu";
116 maa.mb_addr = MAINBUSCF_ADDR_DEFAULT;
117 maa.mb_irq = MAINBUSCF_IRQ_DEFAULT;
118 config_found(self, &maa, mainbus_print, CFARGS_NONE);
119
120 if (a_config.a_has_rtc) {
121 maa.mb_name = "rtc";
122 maa.mb_addr = PMPPC_RTC;
123 maa.mb_irq = PMPPC_I_RTC_INT;
124 config_found(self, &maa, mainbus_print,
125 CFARGS(.submatch = mainbus_submatch));
126 }
127
128 if (a_config.a_has_eth) {
129 maa.mb_name = "cs";
130 maa.mb_addr = PMPPC_CS_IO_BASE;
131 maa.mb_irq = PMPPC_I_ETH_INT;
132 config_found(self, &maa, mainbus_print,
133 CFARGS(.submatch = mainbus_submatch));
134 maa.mb_bt = &pmppc_mem_tag;
135 }
136 if (a_config.a_flash_width != 0) {
137 maa.mb_name = "flash";
138 maa.mb_addr = PMPPC_FLASH_BASE;
139 maa.mb_irq = MAINBUSCF_IRQ_DEFAULT;
140 maa.u.mb_flash.size = a_config.a_flash_size;
141 maa.u.mb_flash.width = a_config.a_flash_width;
142 config_found(self, &maa, mainbus_print,
143 CFARGS(.submatch = mainbus_submatch));
144 }
145
146 maa.mb_name = "cpc";
147 maa.mb_addr = MAINBUSCF_ADDR_DEFAULT;
148 maa.mb_irq = MAINBUSCF_IRQ_DEFAULT;
149 config_found(self, &maa, mainbus_print, CFARGS_NONE);
150 }
151
152 static int cpu_match(device_t, cfdata_t, void *);
153 static void cpu_attach(device_t, device_t, void *);
154
155 CFATTACH_DECL_NEW(cpu, 0,
156 cpu_match, cpu_attach, NULL, NULL);
157
158 extern struct cfdriver cpu_cd;
159
160 int
cpu_match(device_t parent,cfdata_t cf,void * aux)161 cpu_match(device_t parent, cfdata_t cf, void *aux)
162 {
163 struct mainbus_attach_args *maa = aux;
164
165 if (strcmp(maa->mb_name, cpu_cd.cd_name) != 0)
166 return 0;
167
168 if (cpu_info[0].ci_dev != NULL)
169 return 0;
170
171 return 1;
172 }
173
174 void
cpu_attach(device_t parent,device_t self,void * aux)175 cpu_attach(device_t parent, device_t self, void *aux)
176 {
177 (void) cpu_attach_common(self, 0);
178 }
179