1 /* $NetBSD: octeon_bootbus.c,v 1.3 2021/08/07 16:18:59 thorpej Exp $ */
2
3 /*
4 * Copyright (c) 2007
5 * Internet Initiative Japan, Inc. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * 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 copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 __KERNEL_RCSID(0, "$NetBSD: octeon_bootbus.c,v 1.3 2021/08/07 16:18:59 thorpej Exp $");
31
32 #include "locators.h"
33
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/device.h>
37
38 #define _MIPS_BUS_DMA_PRIVATE
39 #include <sys/bus.h>
40
41 #include <mips/cavium/octeonvar.h>
42 #include <mips/cavium/include/bootbusvar.h>
43
44 static int bootbus_match(device_t, struct cfdata *, void *);
45 static void bootbus_attach(device_t, device_t, void *);
46 static int bootbus_submatch(device_t, struct cfdata *,
47 const int *, void *);
48 static int bootbus_print(void *, const char *);
49 static void bootbus_init(void);
50
51 static void bootbus_bus_io_init(bus_space_tag_t, void *);
52
53 static struct mips_bus_space *bootbus_bust;
54 static struct mips_bus_dma_tag *bootbus_dmat;
55
56 void
bootbus_bootstrap(struct octeon_config * mcp)57 bootbus_bootstrap(struct octeon_config *mcp)
58 {
59
60 bootbus_bus_io_init(&mcp->mc_bootbus_bust, mcp);
61
62 bootbus_bust = &mcp->mc_bootbus_bust;
63 bootbus_dmat = &mcp->mc_bootbus_dmat;
64 }
65
66 /* ---- autoconf */
67
68 CFATTACH_DECL_NEW(bootbus, sizeof(device_t), bootbus_match, bootbus_attach, NULL,
69 NULL);
70
71 static int
bootbus_match(device_t parent,struct cfdata * match,void * aux)72 bootbus_match(device_t parent, struct cfdata *match, void *aux)
73 {
74
75 return 1;
76 }
77
78 static void
bootbus_attach(device_t parent,device_t self,void * aux)79 bootbus_attach(device_t parent, device_t self, void *aux)
80 {
81 const struct bootbus_dev *dev;
82 struct bootbus_attach_args aa;
83 int i, j;
84
85 aprint_normal("\n");
86
87 bootbus_init();
88
89 for (i = 0; i < (int)bootbus_ndevs; i++) {
90 dev = bootbus_devs[i];
91 for (j = 0; j < dev->nunits; j++) {
92 aa.aa_name = dev->name;
93 aa.aa_unitno = j;
94 aa.aa_unit = &dev->units[j];
95 aa.aa_bust = bootbus_bust;
96 aa.aa_dmat = bootbus_dmat;
97
98 config_found(self, &aa, bootbus_print,
99 CFARGS(.submatch = bootbus_submatch));
100 }
101 }
102 }
103
104 static int
bootbus_submatch(device_t parent,struct cfdata * cf,const int * ldesc,void * aux)105 bootbus_submatch(device_t parent, struct cfdata *cf,
106 const int *ldesc, void *aux)
107 {
108
109 return config_match(parent, cf, aux);
110 }
111
112 static int
bootbus_print(void * aux,const char * pnp)113 bootbus_print(void *aux, const char *pnp)
114 {
115 struct bootbus_attach_args *aa = aux;
116
117 if (pnp)
118 aprint_normal("%s at %s", aa->aa_name, pnp);
119
120 aprint_normal(": address=0x%016" PRIx64, aa->aa_unit->addr);
121
122 return UNCONF;
123 }
124
125 static void
bootbus_init(void)126 bootbus_init(void)
127 {
128
129 }
130
131
132 /* ---- bus_space(9) */
133
134 #define CHIP bootbus
135 #define CHIP_IO
136 #define CHIP_ACCESS_SIZE 8
137
138 #define CHIP_W1_BUS_START(v) 0x0000000000000000ULL
139 #define CHIP_W1_BUS_END(v) 0x000000001fffffffULL
140 #define CHIP_W1_SYS_START(v) 0x00000000a0000000ULL
141 #define CHIP_W1_SYS_END(v) 0x00000000bfffffffULL
142
143 #include <mips/mips/bus_space_alignstride_chipdep.c>
144