| /* 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 "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->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; |
| |
| fill_fadt_extended_pm_io(fadt); |
| |
| /* |
| * 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 = ACPI_FADT_LEGACY_DEVICES | ACPI_FADT_8042 | |
| ACPI_FADT_MSI_NOT_SUPPORTED; |
| /* |
| * 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 |= ACPI_FADT_WBINVD | ACPI_FADT_C1_SUPPORTED | ACPI_FADT_SLEEP_BUTTON | |
| ACPI_FADT_S4_RTC_WAKE; |
| } |