2 * SPDX-License-Identifier: BSD-4-Clause
4 * Copyright (c) 2012 Oleksandr Tymoshenko.
5 * Copyright (c) 1994-1998 Mark Brinicombe.
6 * Copyright (c) 1994 Brini.
9 * This code is derived from software written for Brini by Mark Brinicombe
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgement:
21 * This product includes software developed by Brini.
22 * 4. The name of the company nor the name of the author may be used to
23 * endorse or promote products derived from this software without specific
24 * prior written permission.
26 * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
27 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
28 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
29 * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
30 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
31 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
32 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 * from: FreeBSD: //depot/projects/arm/src/sys/arm/at91/kb920x_machdep.c, rev 45
42 #include "opt_platform.h"
44 #include <sys/cdefs.h>
45 __FBSDID("$FreeBSD$");
47 #include <sys/param.h>
48 #include <sys/systm.h>
50 #include <sys/devmap.h>
55 #include <machine/bus.h>
56 #include <machine/machdep.h>
57 #include <machine/platform.h>
58 #include <machine/platformvar.h>
60 #include <dev/ofw/openfirm.h>
62 #include <arm/broadcom/bcm2835/bcm2835_wdog.h>
63 #include <arm/broadcom/bcm2835/bcm2836_mp.h>
65 #include "platform_if.h"
68 static platform_devmap_init_t bcm2835_devmap_init;
71 static platform_devmap_init_t bcm2836_devmap_init;
73 static platform_late_init_t bcm2835_late_init;
74 static platform_cpu_reset_t bcm2835_cpu_reset;
77 bcm2835_late_init(platform_t plat)
83 system = OF_finddevice("/system");
85 len = OF_getencprop(system, "linux,serial", cells,
88 board_set_serial(((uint64_t)cells[0]) << 32 | cells[1]);
90 len = OF_getencprop(system, "linux,revision", cells,
93 board_set_revision(cells[0]);
99 * Set up static device mappings.
100 * All on-chip peripherals exist in a 16MB range starting at 0x20000000.
101 * Map the entire range using 1MB section mappings.
104 bcm2835_devmap_init(platform_t plat)
107 devmap_add_entry(0x20000000, 0x01000000);
114 bcm2836_devmap_init(platform_t plat)
117 devmap_add_entry(0x3f000000, 0x01000000);
125 bcm2835_cpu_reset(platform_t plat)
127 bcmwd_watchdog_reset();
131 static platform_method_t bcm2835_methods[] = {
132 PLATFORMMETHOD(platform_devmap_init, bcm2835_devmap_init),
133 PLATFORMMETHOD(platform_late_init, bcm2835_late_init),
134 PLATFORMMETHOD(platform_cpu_reset, bcm2835_cpu_reset),
138 FDT_PLATFORM_DEF2(bcm2835, bcm2835_legacy, "bcm2835 (legacy)", 0, "raspberrypi,model-b", 100);
139 FDT_PLATFORM_DEF2(bcm2835, bcm2835, "bcm2835", 0, "brcm,bcm2835", 100);
143 static platform_method_t bcm2836_methods[] = {
144 PLATFORMMETHOD(platform_devmap_init, bcm2836_devmap_init),
145 PLATFORMMETHOD(platform_late_init, bcm2835_late_init),
146 PLATFORMMETHOD(platform_cpu_reset, bcm2835_cpu_reset),
149 PLATFORMMETHOD(platform_mp_start_ap, bcm2836_mp_start_ap),
150 PLATFORMMETHOD(platform_mp_setmaxid, bcm2836_mp_setmaxid),
155 FDT_PLATFORM_DEF2(bcm2836, bcm2836_legacy, "bcm2836 (legacy)", 0, "brcm,bcm2709", 100);
156 FDT_PLATFORM_DEF2(bcm2836, bcm2836, "bcm2836", 0, "brcm,bcm2836", 100);
157 FDT_PLATFORM_DEF2(bcm2836, bcm2837, "bcm2837", 0, "brcm,bcm2837", 100);