1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2013 Ruslan Bukin <br@bsdpad.com>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include "opt_platform.h"
30
31 #include <sys/param.h>
32 #include <sys/systm.h>
33 #include <sys/devmap.h>
34
35 #include <vm/vm.h>
36
37 #include <dev/ofw/openfirm.h>
38
39 #include <machine/bus.h>
40 #include <machine/fdt.h>
41 #include <machine/platform.h>
42 #include <machine/platformvar.h>
43
44 #include <arm/freescale/vybrid/vf_src.h>
45
46 #include "platform_if.h"
47
48 static int
vf_devmap_init(platform_t plat)49 vf_devmap_init(platform_t plat)
50 {
51
52 devmap_add_entry(0x40000000, 0x100000);
53
54 return (0);
55 }
56
57 static void
vf_cpu_reset(platform_t plat)58 vf_cpu_reset(platform_t plat)
59 {
60 phandle_t src;
61 uint32_t paddr;
62 bus_addr_t vaddr;
63
64 if (src_swreset() == 0)
65 goto end;
66
67 src = OF_finddevice("src");
68 if ((src != -1) && (OF_getencprop(src, "reg", &paddr, sizeof(paddr))) > 0) {
69 if (bus_space_map(fdtbus_bs_tag, paddr, 0x10, 0, &vaddr) == 0) {
70 bus_space_write_4(fdtbus_bs_tag, vaddr, 0x00, SW_RST);
71 }
72 }
73
74 end:
75 while (1);
76 }
77
78 static platform_method_t vf_methods[] = {
79 PLATFORMMETHOD(platform_devmap_init, vf_devmap_init),
80 PLATFORMMETHOD(platform_cpu_reset, vf_cpu_reset),
81
82 PLATFORMMETHOD_END,
83 };
84
85 FDT_PLATFORM_DEF(vf, "vybrid", 0, "freescale,vybrid", 200);
86