src/southbridge/amd/pi/hudson/fadt.c

/* SPDX-License-Identifier: GPL-2.0-only */

/*
 * ACPI - create the Fixed ACPI Description Tables (FADT)
 */

#include <console/console.h>
#include <acpi/acpi.h>
#include <device/device.h>

#include "hudson.h"
#include "smi.h"

/*
 * Reference section 5.2.9 Fixed ACPI Description Table (FADT)
 * in the ACPI 3.0b specification.
 */
void acpi_fill_fadt(acpi_fadt_t *fadt)
{
	printk(BIOS_DEBUG, "pm_base: 0x%04x\n", HUDSON_ACPI_IO_BASE);


	fadt->pm1a_evt_blk = ACPI_PM_EVT_BLK;
	fadt->pm1a_cnt_blk = ACPI_PM1_CNT_BLK;
	fadt->pm_tmr_blk = ACPI_PM_TMR_BLK;
	fadt->gpe0_blk = ACPI_GPE0_BLK;

	fadt->pm1_evt_len = 4;	/* 32 bits */
	fadt->pm1_cnt_len = 2;	/* 16 bits */
	fadt->pm_tmr_len = 4;	/* 32 bits */
	fadt->gpe0_blk_len = 8;	/* 64 bits */

	fill_fadt_extended_pm_io(fadt);

	fadt->duty_offset = 1;	/* CLK_VAL bits 3:1 */
	fadt->duty_width = 3;	/* CLK_VAL bits 3:1 */

	fadt->iapc_boot_arch = ACPI_FADT_LEGACY_FREE;	/* See table 5-10 */
	if (CONFIG(HUDSON_FADT_LEGACY_DEVICES))
		fadt->iapc_boot_arch |= ACPI_FADT_LEGACY_DEVICES;
	if (CONFIG(HUDSON_FADT_8042))
		fadt->iapc_boot_arch |= ACPI_FADT_8042;

	fadt->res2 = 0;		/* reserved, MUST be 0 ACPI 3.0 */
	fadt->flags |= ACPI_FADT_WBINVD | /* See table 5-10 ACPI 3.0a spec */
				ACPI_FADT_C1_SUPPORTED |
				ACPI_FADT_SLEEP_BUTTON |
				ACPI_FADT_S4_RTC_WAKE |
				ACPI_FADT_32BIT_TIMER |
				ACPI_FADT_PCI_EXPRESS_WAKE |
				ACPI_FADT_PLATFORM_CLOCK |
				ACPI_FADT_S4_RTC_VALID |
				ACPI_FADT_REMOTE_POWER_ON;

	fadt->x_firmware_ctl_l = 0;	/* set to 0 if firmware_ctrl is used */
	fadt->x_firmware_ctl_h = 0;
}