1 /* $NetBSD: autoconf.c,v 1.26 2021/03/30 05:14:00 rin Exp $ */
2
3 /*
4 * Copyright (C) 1995, 1996 Wolfgang Solfrank.
5 * Copyright (C) 1995, 1996 TooLs GmbH.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by TooLs GmbH.
19 * 4. The name of TooLs GmbH may not be used to endorse or promote products
20 * derived from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
27 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
28 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
30 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
31 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 #include <sys/cdefs.h>
35 __KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.26 2021/03/30 05:14:00 rin Exp $");
36
37 #include <sys/param.h>
38 #include <sys/device.h>
39 #include <sys/systm.h>
40
41 #include <dev/ic/comreg.h> /* For COM_FREQ */
42
43 #include <powerpc/spr.h>
44 #include <powerpc/ibm4xx/spr.h>
45
46 #include <powerpc/ibm4xx/cpu.h>
47 #include <powerpc/ibm4xx/dcr4xx.h>
48 #include <powerpc/ibm4xx/dev/plbvar.h>
49
50 /*
51 * List of port-specific devices to attach to the processor local bus.
52 */
53 static const struct plb_dev local_plb_devs [] = {
54 { IBM405GP, "pbus", },
55 { 0, NULL }
56 };
57
58 /*
59 * Determine device configuration for a machine.
60 */
61 void
cpu_configure(void)62 cpu_configure(void)
63 {
64
65 intr_init();
66 calc_delayconst();
67
68 /* Make sure that timers run at CPU frequency */
69 mtdcr(DCR_CPC0_CR1, mfdcr(DCR_CPC0_CR1) & ~CPC0_CR1_CETE);
70
71 if (config_rootfound("plb", __UNCONST(&local_plb_devs)) == NULL)
72 panic("configure: plb not configured");
73
74 genppc_cpu_configure();
75 }
76
77 void
device_register(device_t dev,void * aux)78 device_register(device_t dev, void *aux)
79 {
80
81 ibm4xx_device_register(dev, aux, COM_FREQ * 6);
82 }
83