1/*	$NetBSD$	*/
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, "$NetBSD$");
36
37#include <sys/param.h>
38#include <sys/conf.h>
39#include <sys/device.h>
40#include <sys/systm.h>
41#include <sys/cpu.h>
42
43#include <dev/ic/comreg.h>	/* For COM_FREQ */
44
45#include <powerpc/ibm4xx/cpu.h>
46#include <powerpc/ibm4xx/dcr4xx.h>
47#include <powerpc/ibm4xx/dev/plbvar.h>
48#include <powerpc/ibm4xx/spr.h>
49
50/*
51 * List of port-specific devices to attach to the processor local bus.
52 */
53static const struct plb_dev local_plb_devs [] = {
54	{ IBM405GP, "pbus", },
55	{ 0, NULL }
56};
57
58/*
59 * Determine device configuration for a machine.
60 */
61void
62cpu_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", &local_plb_devs) == NULL)
72		panic("configure: plb not configured");
73
74	(void)spl0();
75}
76
77/*
78 * Setup root device.
79 * Configure swap area.
80 */
81void
82cpu_rootconf(void)
83{
84
85	rootconf();
86}
87
88void
89device_register(device_t dev, void *aux)
90{
91	device_t parent = device_parent(dev);
92
93	if (device_is_a(dev, "com") && device_is_a(parent, "opb")) {
94		/* Set the frequency of the on-chip UART. */
95		prop_number_t pn = prop_number_create_integer(COM_FREQ * 6);
96		KASSERT(pn != NULL);
97
98		if (prop_dictionary_set(device_properties(dev),
99					"clock-frequency", pn) == false) {
100			printf("WARNING: unable to set clock-frequency "
101			    "property for %s\n", device_xname(dev));
102		}
103		prop_object_release(pn);
104		return;
105	}
106
107	ibm4xx_device_register(dev, aux);
108}
109