/* 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 */ /* * 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; 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; }