1 /* $NetBSD: adm5120_obio.c,v 1.6 2021/08/07 16:18:58 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 2007 Ruslan Ermilov and Vsevolod Lobko.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or
8 * without modification, are permitted provided that the following
9 * conditions are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above
13 * copyright notice, this list of conditions and the following
14 * disclaimer in the documentation and/or other materials provided
15 * with the distribution.
16 * 3. The names of the authors may not be used to endorse or promote
17 * products derived from this software without specific prior
18 * written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY
21 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
22 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
23 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
25 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
26 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
27 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
29 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
30 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
31 * OF SUCH DAMAGE.
32 */
33 /*
34 * Copyright 2002 Wasabi Systems, Inc.
35 * All rights reserved.
36 *
37 * Written by Simon Burge for Wasabi Systems, Inc.
38 *
39 * Redistribution and use in source and binary forms, with or without
40 * modification, are permitted provided that the following conditions
41 * are met:
42 * 1. Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * 2. Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in the
46 * documentation and/or other materials provided with the distribution.
47 * 3. All advertising materials mentioning features or use of this software
48 * must display the following acknowledgement:
49 * This product includes software developed for the NetBSD Project by
50 * Wasabi Systems, Inc.
51 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
52 * or promote products derived from this software without specific prior
53 * written permission.
54 *
55 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
56 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
57 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
58 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
59 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
60 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
61 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
62 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
63 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
64 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
65 * POSSIBILITY OF SUCH DAMAGE.
66 */
67
68 #include <sys/cdefs.h>
69 __KERNEL_RCSID(0, "$NetBSD: adm5120_obio.c,v 1.6 2021/08/07 16:18:58 thorpej Exp $");
70
71 #include <sys/param.h>
72 #include <sys/systm.h>
73 #include <sys/device.h>
74
75 #include <sys/bus.h>
76
77 #include <mips/cache.h>
78 #include <mips/cpuregs.h>
79
80 #include <mips/adm5120/include/adm5120reg.h>
81 #include <mips/adm5120/include/adm5120var.h>
82 #include <mips/adm5120/include/adm5120_mainbusvar.h>
83 #include <mips/adm5120/include/adm5120_obiovar.h>
84
85 #include "locators.h"
86
87 #ifdef OBIO_DEBUG
88 int obio_debug = 1;
89 #define OBIO_DPRINTF(__fmt, ...) \
90 do { \
91 if (obio_debug) \
92 printf((__fmt), __VA_ARGS__); \
93 } while (/*CONSTCOND*/0)
94 #else /* !OBIO_DEBUG */
95 #define OBIO_DPRINTF(__fmt, ...) do { } while (/*CONSTCOND*/0)
96 #endif /* OBIO_DEBUG */
97
98 static int obio_match(device_t, cfdata_t, void *);
99 static void obio_attach(device_t, device_t, void *);
100 static int obio_submatch(device_t, cfdata_t, const int *, void *);
101 static int obio_print(void *, const char *);
102
103 CFATTACH_DECL_NEW(obio, 0, obio_match, obio_attach, NULL, NULL);
104
105 /* There can be only one. */
106 int obio_found;
107
108 struct obiodev {
109 const char *od_name;
110 bus_addr_t od_addr;
111 int od_irq;
112 uint32_t od_gpio_mask;
113 };
114
115 const struct obiodev obiodevs[] = {
116 {"uart", ADM5120_BASE_UART0, 1, 0x0},
117 {"uart", ADM5120_BASE_UART1, 2, 0x0},
118 {"admsw", ADM5120_BASE_SWITCH, 9, 0x0},
119 {"ahci", ADM5120_BASE_USB, 3, 0x0},
120 {"admflash", ADM5120_BASE_SRAM0, 0, 0x0},
121 {NULL, 0, 0, 0x0},
122 };
123
124 static int
obio_match(device_t parent,cfdata_t match,void * aux)125 obio_match(device_t parent, cfdata_t match, void *aux)
126 {
127 return !obio_found;
128 }
129
130 static void
obio_attach_args_create(struct obio_attach_args * oa,const struct obiodev * od,void * gpio,bus_dma_tag_t dmat,bus_space_tag_t st)131 obio_attach_args_create(struct obio_attach_args *oa, const struct obiodev *od,
132 void *gpio, bus_dma_tag_t dmat, bus_space_tag_t st)
133 {
134 oa->oba_name = od->od_name;
135 oa->oba_addr = od->od_addr;
136 oa->oba_irq = od->od_irq;
137 oa->oba_dt = dmat;
138 oa->oba_st = st;
139 oa->oba_gpio = gpio;
140 oa->oba_gpio_mask = od->od_gpio_mask;
141 }
142
143 static void
obio_attach(device_t parent,device_t self,void * aux)144 obio_attach(device_t parent, device_t self, void *aux)
145 {
146 struct mainbus_attach_args *ma = (struct mainbus_attach_args *)aux;
147 struct obio_attach_args oa;
148 const struct obiodev *od;
149
150 obio_found = 1;
151 printf("\n");
152
153 OBIO_DPRINTF("%s: %d\n", __func__, __LINE__);
154
155 OBIO_DPRINTF("%s: %d\n", __func__, __LINE__);
156 for (od = obiodevs; od->od_name != NULL; od++) {
157 OBIO_DPRINTF("%s: %d\n", __func__, __LINE__);
158 obio_attach_args_create(&oa, od, ma->ma_gpio, ma->ma_dmat,
159 ma->ma_obiot);
160 OBIO_DPRINTF("%s: %d\n", __func__, __LINE__);
161 config_found(self, &oa, obio_print,
162 CFARGS(.submatch = obio_submatch,
163 .iattr = "obio"));
164 }
165 OBIO_DPRINTF("%s: %d\n", __func__, __LINE__);
166 }
167
168 static int
obio_submatch(device_t parent,cfdata_t cf,const int * ldesc,void * aux)169 obio_submatch(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
170 {
171 struct obio_attach_args *oa = aux;
172
173 if (cf->cf_loc[OBIOCF_ADDR] != OBIOCF_ADDR_DEFAULT &&
174 cf->cf_loc[OBIOCF_ADDR] != oa->oba_addr)
175 return 0;
176
177 return config_match(parent, cf, aux);
178 }
179
180 static int
obio_print(void * aux,const char * pnp)181 obio_print(void *aux, const char *pnp)
182 {
183 struct obio_attach_args *oa = aux;
184
185 if (pnp != NULL)
186 aprint_normal("%s at %s", oa->oba_name, pnp);
187 if (oa->oba_addr != OBIOCF_ADDR_DEFAULT)
188 aprint_normal(" addr 0x%"PRIxBUSADDR, oa->oba_addr);
189 if (oa->oba_gpio_mask != OBIOCF_GPIO_MASK_DEFAULT)
190 aprint_normal(" gpio_mask 0x%02x", oa->oba_gpio_mask);
191
192 return UNCONF;
193 }
194