2 * Copyright (c) 2012 Oleksandr Tymoshenko.
3 * Copyright (c) 1994-1998 Mark Brinicombe.
4 * Copyright (c) 1994 Brini.
7 * This code is derived from software written for Brini by Mark Brinicombe
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by Brini.
20 * 4. The name of the company nor the name of the author may be used to
21 * endorse or promote products derived from this software without specific
22 * prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
25 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
26 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
27 * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
28 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
29 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * from: FreeBSD: //depot/projects/arm/src/sys/arm/at91/kb920x_machdep.c, rev 45
40 #include "opt_platform.h"
41 #include "opt_global.h"
43 #include <sys/cdefs.h>
44 __FBSDID("$FreeBSD$");
46 #define _ARM32_BUS_DMA_PRIVATE
47 #include <sys/param.h>
48 #include <sys/systm.h>
54 #include <machine/bus.h>
55 #include <machine/devmap.h>
56 #include <machine/machdep.h>
57 #include <machine/platform.h>
58 #include <machine/platformvar.h>
60 #include <dev/fdt/fdt_common.h>
62 #include <arm/broadcom/bcm2835/bcm2835_wdog.h>
64 #include "platform_if.h"
67 bcm2835_lastaddr(platform_t plat)
70 return (arm_devmap_lastaddr());
74 bcm2835_late_init(platform_t plat)
80 system = OF_finddevice("/system");
82 len = OF_getprop(system, "linux,serial", &cells, sizeof(cells));
84 board_set_serial(fdt64_to_cpu(*((uint64_t *)cells)));
86 len = OF_getprop(system, "linux,revision", &cells, sizeof(cells));
88 board_set_revision(fdt32_to_cpu(*((uint32_t *)cells)));
93 * Set up static device mappings.
94 * All on-chip peripherals exist in a 16MB range starting at 0x20000000.
95 * Map the entire range using 1MB section mappings.
98 bcm2835_devmap_init(platform_t plat)
101 arm_devmap_add_entry(0x20000000, 0x01000000);
105 struct arm32_dma_range *
106 bus_dma_get_range(void)
113 bus_dma_get_range_nb(void)
122 bcmwd_watchdog_reset();
125 static platform_method_t bcm2835_methods[] = {
126 PLATFORMMETHOD(platform_devmap_init, bcm2835_devmap_init),
127 PLATFORMMETHOD(platform_lastaddr, bcm2835_lastaddr),
128 PLATFORMMETHOD(platform_late_init, bcm2835_late_init),
133 FDT_PLATFORM_DEF(bcm2835, "bcm2835", 0, "raspberrypi,model-b");