2 * This file is part of the libpayload project.
4 * Copyright (C) 2008 Advanced Micro Devices, Inc.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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.
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
30 #include <libpayload-config.h>
31 #include <libpayload.h>
32 #include <coreboot_tables.h>
33 #include <multiboot_tables.h>
36 * This is a global structure that is used through the library - we set it
37 * up initially with some dummy values - hopefully they will be overridden.
39 struct sysinfo_t lib_sysinfo = {
41 #ifdef CONFIG_SERIAL_CONSOLE
42 .ser_ioport = CONFIG_SERIAL_IOBASE,
48 int lib_get_sysinfo(void)
52 /* Get the CPU speed (for delays). */
53 lib_sysinfo.cpu_khz = get_cpu_speed();
55 #ifdef CONFIG_MULTIBOOT
56 /* Get the information from the multiboot tables,
58 get_multiboot_info(&lib_sysinfo);
61 /* Get information from the coreboot tables,
64 ret = get_coreboot_info(&lib_sysinfo);
66 if (!lib_sysinfo.n_memranges) {
67 /* If we can't get a good memory range, use the default. */
68 lib_sysinfo.n_memranges = 2;
70 lib_sysinfo.memrange[0].base = 0;
71 lib_sysinfo.memrange[0].size = 640 * 1024;
72 lib_sysinfo.memrange[0].type = CB_MEM_RAM;
74 lib_sysinfo.memrange[1].base = 1024 * 1024;
75 lib_sysinfo.memrange[1].size = 31 * 1024 * 1024;
76 lib_sysinfo.memrange[1].type = CB_MEM_RAM;