mainbus.c revision 1.2 
1/*	$NetBSD: mainbus.c,v 1.2 2020/07/16 11:49:37 jmcneill 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: mainbus.c,v 1.2 2020/07/16 11:49:37 jmcneill Exp $");
31
32#define	_MIPS_BUS_DMA_PRIVATE
33
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <sys/device.h>
37#include <sys/bus.h>
38
39#include <mips/cavium/include/mainbusvar.h>
40
41#include <dev/fdt/fdtvar.h>
42
43static int	mainbus_match(device_t, struct cfdata *, void *);
44static void	mainbus_attach(device_t, device_t, void *);
45static void	mainbus_attach_static(device_t);
46static void	mainbus_attach_devicetree(device_t);
47static int	mainbus_submatch(device_t, cfdata_t, const int *, void *);
48static int	mainbus_print(void *, const char *);
49
50static void	simplebus_bus_io_init(bus_space_tag_t, void *);
51
52CFATTACH_DECL_NEW(mainbus, sizeof(device_t), mainbus_match, mainbus_attach,
53    NULL, NULL);
54
55static struct mips_bus_space simplebus_bus_tag;
56
57static struct mips_bus_dma_tag simplebus_dma_tag = {
58	._cookie = NULL,
59	._wbase = 0,
60	._bounce_alloc_lo = 0,
61	._bounce_alloc_hi = 0,
62	._dmamap_ops = _BUS_DMAMAP_OPS_INITIALIZER,
63	._dmamem_ops = _BUS_DMAMEM_OPS_INITIALIZER,
64	._dmatag_ops = _BUS_DMATAG_OPS_INITIALIZER,
65};
66
67static int
68mainbus_match(device_t parent, struct cfdata *match, void *aux)
69{
70	static int once = 0;
71
72	if (once != 0)
73		return 0;
74	once = 1;
75
76	return 1;
77}
78
79static void
80mainbus_attach(device_t parent, device_t self, void *aux)
81{
82	aprint_normal("\n");
83
84	if (fdtbus_get_data() != NULL) {
85		mainbus_attach_devicetree(self);
86	} else {
87		mainbus_attach_static(self);
88	}
89}
90
91static void
92mainbus_attach_static(device_t self)
93{
94	struct mainbus_attach_args aa;
95	int i;
96
97	for (i = 0; i < (int)mainbus_ndevs; i++) {
98		aa.aa_name = mainbus_devs[i];
99		config_found_sm_loc(self, "mainbus", NULL, &aa,
100		    mainbus_print, mainbus_submatch);
101	}
102}
103
104extern struct octeon_config octeon_configuration;
105extern void octpow_bootstrap(struct octeon_config *);
106extern void octfpa_bootstrap(struct octeon_config *);
107
108static void
109mainbus_attach_devicetree(device_t self)
110{
111	struct mainbus_attach_args aa;
112	struct fdt_attach_args faa;
113
114	aa.aa_name = "cpunode";
115	config_found_sm_loc(self, "mainbus", NULL, &aa, mainbus_print,
116	    mainbus_submatch);
117
118	octpow_bootstrap(&octeon_configuration);
119	octfpa_bootstrap(&octeon_configuration);
120
121	simplebus_bus_io_init(&simplebus_bus_tag, NULL);
122
123	faa.faa_bst = &simplebus_bus_tag;
124	faa.faa_a4x_bst = NULL;		/* XXX */
125	faa.faa_dmat = &simplebus_dma_tag;
126	faa.faa_name = "";
127	faa.faa_phandle = OF_peer(0);
128	config_found(self, &faa, NULL);
129}
130
131static int
132mainbus_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux)
133{
134	struct mainbus_attach_args *aa = aux;
135
136	if (strcmp(cf->cf_name, aa->aa_name) != 0)
137		return 0;
138
139	return config_match(parent, cf, aux);
140}
141
142static int
143mainbus_print(void *aux, const char *pnp)
144{
145	struct mainbus_attach_args *aa = aux;
146
147	if (pnp != 0)
148		return QUIET;
149
150	if (pnp)
151		aprint_normal("%s at %s", aa->aa_name, pnp);
152
153	return UNCONF;
154}
155
156/* ---- bus_space(9) */
157#define	CHIP			simplebus
158#define	CHIP_IO
159#define	CHIP_ACCESS_SIZE	8
160
161#define	CHIP_W1_BUS_START(v)	0x0000000000000000ULL
162#define	CHIP_W1_BUS_END(v)	0x7fffffffffffffffULL
163#define	CHIP_W1_SYS_START(v)	0x8000000000000000ULL
164#define	CHIP_W1_SYS_END(v)	0xffffffffffffffffULL
165
166#include <mips/mips/bus_space_alignstride_chipdep.c>
167