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/*
 * This file is part of the coreboot project.
 *
 * Copyright (C) 2007-2009 coresystems GmbH
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include <string.h>
#include <device/pci.h>
#include <arch/acpi.h>

/* FIXME: This needs to go into a separate .h file
 * to be included by the ich7 smi handler, ich7 smi init
 * code and the mainboard fadt.
 */
#define APM_CNT		0xb2
#define CST_CONTROL	0x85
#define PST_CONTROL	0x80
#define ACPI_DISABLE	0x1e
#define ACPI_ENABLE	0xe1
#define GNVS_UPDATE	0xea

void acpi_create_fadt(acpi_fadt_t * fadt, acpi_facs_t * facs, void *dsdt)
{
	acpi_header_t *header = &(fadt->header);
	u16 pmbase = pci_read_config16(dev_find_slot(0, PCI_DEVFN(0x1f,0)),
								0x40) & 0xfffe;

	memset((void *) fadt, 0, sizeof(acpi_fadt_t));
	memcpy(header->signature, "FACP", 4);
	header->length = sizeof(acpi_fadt_t);
	header->revision = 3;
	memcpy(header->oem_id, OEM_ID, 6);
	memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
	memcpy(header->asl_compiler_id, "CORE", 4);
	header->asl_compiler_revision = 1;

	fadt->firmware_ctrl = (unsigned long) facs;
	fadt->dsdt = (unsigned long) dsdt;
	fadt->model = 1;
	fadt->preferred_pm_profile = PM_MOBILE;

	fadt->sci_int = 0x9;
	fadt->smi_cmd = APM_CNT;
	fadt->acpi_enable = ACPI_ENABLE;
	fadt->acpi_disable = ACPI_DISABLE;
	fadt->s4bios_req = 0x0;
	fadt->pstate_cnt = 0;

	fadt->pm1a_evt_blk = pmbase;
	fadt->pm1b_evt_blk = 0x0;
	fadt->pm1a_cnt_blk = pmbase + 0x4;
	fadt->pm1b_cnt_blk = 0x0;
	fadt->pm2_cnt_blk = pmbase + 0x50;
	fadt->pm_tmr_blk = pmbase + 0x8;
	fadt->gpe0_blk = pmbase + 0x20;
	fadt->gpe1_blk = 0;

	fadt->pm1_evt_len = 4;
	fadt->pm1_cnt_len = 2;
	fadt->pm2_cnt_len = 1;
	fadt->pm_tmr_len = 4;
	fadt->gpe0_blk_len = 16;
	fadt->gpe1_blk_len = 0;
	fadt->gpe1_base = 0;
	fadt->cst_cnt = 0;
	fadt->p_lvl2_lat = 101;  /* c2 not supported */
	fadt->p_lvl3_lat = 87;
	fadt->flush_size = 1024;
	fadt->flush_stride = 16;
	fadt->duty_offset = 1;
	fadt->duty_width = 3;
	fadt->day_alrm = 0xd;
	fadt->mon_alrm = 0x00;
	fadt->century = 0x00;
	fadt->iapc_boot_arch = ACPI_FADT_LEGACY_DEVICES | ACPI_FADT_8042;

	fadt->flags = ACPI_FADT_WBINVD |
			ACPI_FADT_C1_SUPPORTED |
			ACPI_FADT_SLEEP_BUTTON |
			ACPI_FADT_RESET_REGISTER |
			ACPI_FADT_SEALED_CASE |
			ACPI_FADT_S4_RTC_WAKE |
			ACPI_FADT_PLATFORM_CLOCK;

	fadt->reset_reg.space_id = 1;
	fadt->reset_reg.bit_width = 8;
	fadt->reset_reg.bit_offset = 0;
	fadt->reset_reg.resv = 0;
	fadt->reset_reg.addrl = 0xcf9;
	fadt->reset_reg.addrh = 0;

	fadt->reset_value = 6;
	fadt->x_firmware_ctl_l = (unsigned long)facs;
	fadt->x_firmware_ctl_h = 0;
	fadt->x_dsdt_l = (unsigned long)dsdt;
	fadt->x_dsdt_h = 0;

	fadt->x_pm1a_evt_blk.space_id = 1;
	fadt->x_pm1a_evt_blk.bit_width = 32;
	fadt->x_pm1a_evt_blk.bit_offset = 0;
	fadt->x_pm1a_evt_blk.resv = 0;
	fadt->x_pm1a_evt_blk.addrl = pmbase;
	fadt->x_pm1a_evt_blk.addrh = 0x0;

	fadt->x_pm1b_evt_blk.space_id = 1;
	fadt->x_pm1b_evt_blk.bit_width = 0;
	fadt->x_pm1b_evt_blk.bit_offset = 0;
	fadt->x_pm1b_evt_blk.resv = 0;
	fadt->x_pm1b_evt_blk.addrl = 0x0;
	fadt->x_pm1b_evt_blk.addrh = 0x0;

	fadt->x_pm1a_cnt_blk.space_id = 1;
	fadt->x_pm1a_cnt_blk.bit_width = 16;
	fadt->x_pm1a_cnt_blk.bit_offset = 0;
	fadt->x_pm1a_cnt_blk.resv = 0;
	fadt->x_pm1a_cnt_blk.addrl = pmbase + 0x4;
	fadt->x_pm1a_cnt_blk.addrh = 0x0;

	fadt->x_pm1b_cnt_blk.space_id = 1;
	fadt->x_pm1b_cnt_blk.bit_width = 0;
	fadt->x_pm1b_cnt_blk.bit_offset = 0;
	fadt->x_pm1b_cnt_blk.resv = 0;
	fadt->x_pm1b_cnt_blk.addrl = 0x0;
	fadt->x_pm1b_cnt_blk.addrh = 0x0;

	fadt->x_pm2_cnt_blk.space_id = 1;
	fadt->x_pm2_cnt_blk.bit_width = 8;
	fadt->x_pm2_cnt_blk.bit_offset = 0;
	fadt->x_pm2_cnt_blk.resv = 0;
	fadt->x_pm2_cnt_blk.addrl = pmbase + 0x50;
	fadt->x_pm2_cnt_blk.addrh = 0x0;

	fadt->x_pm_tmr_blk.space_id = 1;
	fadt->x_pm_tmr_blk.bit_width = 32;
	fadt->x_pm_tmr_blk.bit_offset = 0;
	fadt->x_pm_tmr_blk.resv = 0;
	fadt->x_pm_tmr_blk.addrl = pmbase + 0x8;
	fadt->x_pm_tmr_blk.addrh = 0x0;

	fadt->x_gpe0_blk.space_id = 1;
	fadt->x_gpe0_blk.bit_width = 64;
	fadt->x_gpe0_blk.bit_offset = 0;
	fadt->x_gpe0_blk.resv = 0;
	fadt->x_gpe0_blk.addrl = pmbase + 0x20;
	fadt->x_gpe0_blk.addrh = 0x0;

	fadt->x_gpe1_blk.space_id = 1;
	fadt->x_gpe1_blk.bit_width = 0;
	fadt->x_gpe1_blk.bit_offset = 0;
	fadt->x_gpe1_blk.resv = 0;
	fadt->x_gpe1_blk.addrl = 0x0;
	fadt->x_gpe1_blk.addrh = 0x0;

	header->checksum =
	    acpi_checksum((void *) fadt, header->length);
}