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path: root/payloads/libpayload/i386/sysinfo.c
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/*
 * This file is part of the libpayload project.
 *
 * Copyright (C) 2008 Advanced Micro Devices, Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <libpayload.h>
#include <sysinfo.h>

/* This is a global structure that is used through the
   library - we set it up initially with some dummy
   values - hopefully they will be overridden 
*/

struct sysinfo_t lib_sysinfo = {
	. cpu_khz = 200,
	. ser_ioport = CONFIG_SERIAL_IOBASE,
};
       
void lib_get_sysinfo(void)
{
	/* Get the CPU speed (for delays) */
	lib_sysinfo.cpu_khz = get_cpu_speed();
	
	/* Get the memory information */

	get_coreboot_info(&lib_sysinfo);

	if (!lib_sysinfo.n_memranges) {
		
		/* If we couldn't get a good memory range,
		   then use a hard coded default */
	
		lib_sysinfo.n_memranges = 2;

		lib_sysinfo.memrange[0].base = 0;
		lib_sysinfo.memrange[0].size = 640 * 1024;
		lib_sysinfo.memrange[1].base = 1024 * 1024;
		lib_sysinfo.memrange[1].size = 31 * 1024 * 1024;
	}
}