c9a6f0f442
type field contains e820 type ids, which are used by coreboot and multiboot (the two source formats), so they can be used as-is. The MEMMAP_RAM_ONLY define is a way to allow a payload to opt for only having CB_MEM_RAM type fields, which might be helpful to support older payloads easily (just add the define, and it won't encounter "weird" fields) Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de> Acked-by: Peter Stuge <peter@stuge.se> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4291 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
76 lines
2.7 KiB
C
76 lines
2.7 KiB
C
/*
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* This file is part of the libpayload project.
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*
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* Copyright (C) 2008 Advanced Micro Devices, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <libpayload-config.h>
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#include <libpayload.h>
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#include <coreboot_tables.h>
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#include <multiboot_tables.h>
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/**
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* This is a global structure that is used through the library - we set it
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* up initially with some dummy values - hopefully they will be overridden.
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*/
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struct sysinfo_t lib_sysinfo = {
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.cpu_khz = 200,
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#ifdef CONFIG_SERIAL_CONSOLE
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.ser_ioport = CONFIG_SERIAL_IOBASE,
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#else
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.ser_ioport = 0x3f8,
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#endif
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};
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void lib_get_sysinfo(void)
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{
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/* Get the CPU speed (for delays). */
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lib_sysinfo.cpu_khz = get_cpu_speed();
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#ifdef CONFIG_MULTIBOOT
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/* Get the information from the multiboot tables,
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* if they exist */
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get_multiboot_info(&lib_sysinfo);
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#endif
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/* Get information from the coreboot tables,
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* if they exist */
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get_coreboot_info(&lib_sysinfo);
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if (!lib_sysinfo.n_memranges) {
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/* If we can't get a good memory range, use the default. */
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lib_sysinfo.n_memranges = 2;
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lib_sysinfo.memrange[0].base = 0;
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lib_sysinfo.memrange[0].size = 640 * 1024;
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lib_sysinfo.memrange[0].type = CB_MEM_RAM;
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lib_sysinfo.memrange[1].base = 1024 * 1024;
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lib_sysinfo.memrange[1].size = 31 * 1024 * 1024;
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lib_sysinfo.memrange[1].type = CB_MEM_RAM;
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}
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}
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