50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
/*
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* This file is part of the libpayload project.
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*
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* Copyright (C) 2014 Imagination Technologies
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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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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};
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int lib_get_sysinfo(void)
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{
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int ret;
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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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/* Get information from the coreboot tables,
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* if they exist */
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ret = get_coreboot_info(&lib_sysinfo);
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/* If we can't get a good memory range, use the default. */
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if (!lib_sysinfo.n_memranges) {
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lib_sysinfo.n_memranges = 1;
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lib_sysinfo.memrange[0].base = 0;
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lib_sysinfo.memrange[0].size = 1024 * 1024;
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lib_sysinfo.memrange[0].type = CB_MEM_RAM;
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}
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return ret;
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}
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