1 /* $NetBSD: autoconf.c,v 1.2 2023/12/20 13:55:18 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 2001 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Matt Thomas <matt@3am-software.com>.
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: autoconf.c,v 1.2 2023/12/20 13:55:18 thorpej Exp $");
34
35 #include "opt_md.h"
36
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/reboot.h>
40 #include <sys/disklabel.h>
41 #include <sys/device.h>
42 #include <sys/conf.h>
43 #include <sys/kernel.h>
44
45 #include <net/if.h>
46 #include <net/if_ether.h>
47
48 #include <machine/autoconf.h>
49 #include <machine/intr.h>
50
51 #include <evbarm/iyonix/iyonixvar.h>
52
53 #include <acorn32/include/bootconfig.h>
54
55 extern struct bootconfig bootconfig;
56
57 /*
58 * Set up the root device from the boot args
59 */
60 void
cpu_rootconf(void)61 cpu_rootconf(void)
62 {
63 aprint_normal("boot device: %s\n",
64 booted_device != NULL ? device_xname(booted_device) : "<unknown>");
65 rootconf();
66 }
67
68
69 /*
70 * void cpu_configure()
71 *
72 * Configure all the root devices
73 * The root devices are expected to configure their own children
74 */
75 void
cpu_configure(void)76 cpu_configure(void)
77 {
78 struct mainbus_attach_args maa;
79
80 (void) splhigh();
81 (void) splserial(); /* XXX need an splextreme() */
82
83 maa.ma_name = "mainbus";
84
85 config_rootfound("mainbus", &maa);
86
87 /* Time to start taking interrupts so lets open the flood gates .... */
88 spl0();
89 }
90
91 #define BUILTIN_ETHERNET_P(pa) \
92 ((pa)->pa_bus == 0 && (pa)->pa_device == 4 && (pa)->pa_function == 0)
93
94 #define SETPROP(x, y) \
95 do { \
96 if (prop_dictionary_set(device_properties(dev), \
97 x, y) == false) { \
98 printf("WARNING: unable to set " x " " \
99 "property for %s\n", device_xname(dev)); \
100 } \
101 prop_object_release(y); \
102 } while (/*CONSTCOND*/0)
103
104 void
device_register(device_t dev,void * aux)105 device_register(device_t dev, void *aux)
106 {
107 device_t pdev;
108
109 if ((pdev = device_parent(dev)) != NULL &&
110 device_is_a(pdev, "pci")) {
111 struct pci_attach_args *pa = aux;
112
113 if (BUILTIN_ETHERNET_P(pa)) {
114 prop_number_t cfg1, cfg2, swdpin;
115 prop_data_t mac;
116
117 /*
118 * We set these configuration registers to 0,
119 * because it's the closest we have to "leave them
120 * alone". That and, it works.
121 */
122 cfg1 = prop_number_create_integer(0);
123 KASSERT(cfg1 != NULL);
124 cfg2 = prop_number_create_integer(0);
125 KASSERT(cfg2 != NULL);
126 swdpin = prop_number_create_integer(0);
127 KASSERT(swdpin != NULL);
128
129 mac = prop_data_create_data_nocopy(iyonix_macaddr,
130 ETHER_ADDR_LEN);
131 KASSERT(mac != NULL);
132
133 SETPROP("mac-address", mac);
134 SETPROP("i82543-cfg1", cfg1);
135 SETPROP("i82543-cfg2", cfg2);
136 SETPROP("i82543-swdpin", swdpin);
137 }
138 }
139
140 if ((device_is_a(dev, "genfb") || device_is_a(dev, "gffb")) &&
141 device_is_a(device_parent(dev), "pci") ) {
142 prop_dictionary_t dict = device_properties(dev);
143 struct pci_attach_args *pa = aux;
144 pcireg_t bar0, bar1;
145 uint32_t fbaddr;
146 bus_space_handle_t vgah;
147
148 bar0 = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_MAPREG_START);
149 bar1 = pci_conf_read(pa->pa_pc, pa->pa_tag,
150 PCI_MAPREG_START + 0x04);
151
152 /*
153 * We need to prod the VGA card to disable interrupts, since
154 * RISC OS has been using them and we don't know how to
155 * handle them. This assumes that we have a NVidia
156 * GeForce 2 MX card as supplied with the Iyonix and
157 * as (probably) required by RISC OS in order to boot.
158 * If you write your own RISC OS driver for a different card,
159 * you're on your own.
160 */
161
162 /* We're guessing at the numbers here, guys */
163 #define VGASIZE 0x1000
164 #define IRQENABLE_ADDR 0x140
165
166 bus_space_map(pa->pa_memt, PCI_MAPREG_MEM_ADDR(bar0),
167 VGASIZE, 0, &vgah);
168 bus_space_write_4(pa->pa_memt, vgah, 0x140, 0);
169 bus_space_unmap(pa->pa_memt, vgah, 0x1000);
170
171 fbaddr = PCI_MAPREG_MEM_ADDR(bar1);
172
173 prop_dictionary_set_bool(dict, "is_console", 1);
174 prop_dictionary_set_uint32(dict, "width",
175 bootconfig.width + 1);
176 prop_dictionary_set_uint32(dict, "height",
177 bootconfig.height + 1);
178 prop_dictionary_set_uint32(dict, "depth",
179 1 << bootconfig.log2_bpp);
180 /*
181 * XXX
182 * at least RISC OS 5.28 seems to use the graphics hardware in
183 * BGR mode when in 32bit colour, so take that into account
184 */
185 if (bootconfig.log2_bpp == 5)
186 prop_dictionary_set_bool(dict, "is_bgr", 1);
187 prop_dictionary_set_uint32(dict, "address", fbaddr);
188 }
189 if (device_is_a(dev, "dsrtc")) {
190 prop_dictionary_t dict = device_properties(dev);
191 prop_dictionary_set_bool(dict, "base_year_is_2000", 1);
192 }
193 }
194