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path: root/src/mainboard/getac/p470/cstates.c
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/*
 * This file is part of the coreboot project.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#include <device/device.h>
#include <arch/x86/include/arch/acpigen.h>
#include <southbridge/intel/i82801gx/i82801gx.h>

static acpi_cstate_t cst_entries[] = {
	{
		/* ACPI C1 / CPU C1 */
		1, 0x01, 1000,
		{ ACPI_ADDRESS_SPACE_FIXED, 1, 2, 1, 0, 0 }
	},
	{
		/* ACPI C2 / CPU C2 */
		2, 0x01,  500,
		{ ACPI_ADDRESS_SPACE_IO, 8, 0, 0, DEFAULT_PMBASE + LV2, 0 }
	},
	{
		/* ACPI C3 / CPU C2 */
		2, 0x11,  250,
		{ ACPI_ADDRESS_SPACE_IO, 8, 0, 0, DEFAULT_PMBASE + LV3, 0 }
	},
};

int get_cst_entries(acpi_cstate_t **entries)
{
	*entries = cst_entries;
	return ARRAY_SIZE(cst_entries);
}