blob: 5aa517594cee2c4cbbdccf7b01fa6d5302b67507 [file] [log] [blame]
Stefan Reinauer8af0d032012-12-14 13:05:21 -08001/*
2 * This file is part of the libpayload project.
3 *
4 * Copyright (C) 2008 Advanced Micro Devices, Inc.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#include <libpayload-config.h>
31#include <libpayload.h>
32#include <coreboot_tables.h>
33
34/**
35 * This is a global structure that is used through the library - we set it
36 * up initially with some dummy values - hopefully they will be overridden.
37 */
38struct sysinfo_t lib_sysinfo = {
39 .cpu_khz = 200,
40};
41
42int lib_get_sysinfo(void)
43{
44 int ret;
45
46 /* Get the CPU speed (for delays). */
47 lib_sysinfo.cpu_khz = get_cpu_speed();
48
49 /* Get information from the coreboot tables,
50 * if they exist */
51
52 ret = get_coreboot_info(&lib_sysinfo);
53
54 if (!lib_sysinfo.n_memranges) {
55 /* If we can't get a good memory range, use the default. */
56 lib_sysinfo.n_memranges = 2;
57
58 lib_sysinfo.memrange[0].base = 0;
59 lib_sysinfo.memrange[0].size = 1024 * 1024;
60 lib_sysinfo.memrange[0].type = CB_MEM_RAM;
61 }
62
63 return ret;
64}