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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Based on src/southbridge/via/vt8237r/vt8237_fadt.c
*/
#include <acpi/acpi.h>
#include <device/device.h>
#include <device/pci.h>
#include <version.h>
#include "i82371eb.h"
/**
* Create the Fixed ACPI Description Tables (FADT) for any board with this SB.
* Reference: ACPIspec40a, 5.2.9, page 118
*/
void acpi_fill_fadt(acpi_fadt_t *fadt)
{
fadt->sci_int = 9;
if (permanent_smi_handler()) {
/* TODO: SMI handler is not implemented. */
fadt->smi_cmd = 0x00;
}
fadt->pm1a_evt_blk = DEFAULT_PMBASE;
fadt->pm1a_cnt_blk = DEFAULT_PMBASE + PMCNTRL;
fadt->pm_tmr_blk = DEFAULT_PMBASE + PMTMR;
fadt->gpe0_blk = DEFAULT_PMBASE + GPSTS;
/* *_len define register width in bytes */
fadt->pm1_evt_len = 4;
fadt->pm1_cnt_len = 2;
fadt->pm_tmr_len = 4;
fadt->gpe0_blk_len = 4;
fadt->p_lvl2_lat = 101; /* >100 means c2 not supported */
fadt->p_lvl3_lat = 1001; /* >1000 means c3 not supported */
fadt->duty_offset = 1; /* bit 1:3 in PCNTRL reg (pmbase+0x10) */
fadt->duty_width = 3; /* this width is in bits */
fadt->day_alrm = 0x0d; /* rtc CMOS RAM offset */
fadt->mon_alrm = 0x0; /* not supported */
fadt->century = 0x0; /* not supported */
/*
* bit meaning
* 0 1: We have user-visible legacy devices
* 1 1: 8042
* 2 0: VGA is ok to probe
* 3 1: MSI are not supported
*/
fadt->iapc_boot_arch = 0xb;
/*
* bit meaning
* 0 WBINVD
* Processors in new ACPI-compatible systems are required to
* support this function and indicate this to OSPM by setting
* this field.
* 1 WBINVD_FLUSH
* If set, indicates that the hardware flushes all caches on the
* WBINVD instruction and maintains memory coherency, but does
* not guarantee the caches are invalidated.
* 2 PROC_C1
* C1 power state (x86 hlt instruction) is supported on all cpus
* 3 P_LVL2_UP
* 0: C2 only on uniprocessor, 1: C2 on uni- and multiprocessor
* 4 PWR_BUTTON
* 0: pwr button is fixed feature
* 1: pwr button has control method device if present
* 5 SLP_BUTTON
* 0: sleep button is fixed feature
* 1: sleep button has control method device if present
* 6 FIX_RTC
* 0: RTC wake status supported in fixed register spce
* 7 RTC_S4
* 1: RTC can wake from S4
* 8 TMR_VAL_EXT
* 1: pmtimer is 32bit, 0: pmtimer is 24bit
* 9 DCK_CAP
* 1: system supports docking station
* 10 RESET_REG_SUPPORT
* 1: fadt describes reset register for system reset
* 11 SEALED_CASE
* 1: No expansion possible, sealed case
* 12 HEADLESS
* 1: Video output, keyboard and mouse are not connected
* 13 CPU_SW_SLP
* 1: Special processor instruction needs to be executed
* after writing SLP_TYP
* 14 PCI_EXP_WAK
* 1: PM1 regs support PCIEXP_WAKE_(STS|EN), must be set
* on platforms with pci express support
* 15 USE_PLATFORM_CLOCK
* 1: OS should prefer platform clock over processor internal
* clock.
* 16 S4_RTC_STS_VALID
* 17 REMOTE_POWER_ON_CAPABLE
* 1: platform correctly supports OSPM leaving GPE wake events
* armed prior to an S5 transition.
* 18 FORCE_APIC_CLUSTER_MODEL
* 19 FORCE_APIC_PHYSICAL_DESTINATION_MODE
*/
fadt->flags |= 0xa5;
fadt->x_pm1a_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
fadt->x_pm1a_evt_blk.bit_width = fadt->pm1_evt_len * 8;
fadt->x_pm1a_evt_blk.bit_offset = 0;
fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS;
fadt->x_pm1a_evt_blk.addrl = fadt->pm1a_evt_blk;
fadt->x_pm1a_evt_blk.addrh = 0x0;
fadt->x_pm1a_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
fadt->x_pm1a_cnt_blk.bit_width = fadt->pm1_cnt_len * 8;
fadt->x_pm1a_cnt_blk.bit_offset = 0;
fadt->x_pm1a_cnt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS;
fadt->x_pm1a_cnt_blk.addrl = fadt->pm1a_cnt_blk;
fadt->x_pm1a_cnt_blk.addrh = 0x0;
fadt->x_pm_tmr_blk.space_id = ACPI_ADDRESS_SPACE_IO;
fadt->x_pm_tmr_blk.bit_width = fadt->pm_tmr_len * 8;
fadt->x_pm_tmr_blk.bit_offset = 0;
fadt->x_pm_tmr_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
fadt->x_pm_tmr_blk.addrl = fadt->pm_tmr_blk;
fadt->x_pm_tmr_blk.addrh = 0x0;
fadt->x_gpe0_blk.space_id = ACPI_ADDRESS_SPACE_IO;
fadt->x_gpe0_blk.bit_width = fadt->gpe0_blk_len * 8;
fadt->x_gpe0_blk.bit_offset = 0;
fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
fadt->x_gpe0_blk.addrl = fadt->gpe0_blk;
fadt->x_gpe0_blk.addrh = 0x0;
}
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