| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2016 Intel Corp. |
| * (Written by Lance Zhao <lijian.zhao@intel.com> for Intel Corp.) |
| * |
| * 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; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * 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. |
| */ |
| |
| #include <arch/acpi.h> |
| #include <arch/acpigen.h> |
| #include <arch/ioapic.h> |
| #include <arch/smp/mpspec.h> |
| #include <cbmem.h> |
| #include <cpu/x86/smm.h> |
| #include <soc/acpi.h> |
| #include <soc/intel/common/acpi.h> |
| #include <soc/iomap.h> |
| #include <soc/pm.h> |
| #include <soc/nvs.h> |
| |
| #define CSTATE_RES(address_space, width, offset, address) \ |
| { \ |
| .space_id = address_space, \ |
| .bit_width = width, \ |
| .bit_offset = offset, \ |
| .addrl = address, \ |
| } |
| |
| unsigned long acpi_fill_mcfg(unsigned long current) |
| { |
| /* PCI Segment Group 0, Start Bus Number 0, End Bus Number is 255 */ |
| current += acpi_create_mcfg_mmconfig((void *) current, |
| CONFIG_MMCONF_BASE_ADDRESS, 0, 0, |
| 255); |
| return current; |
| } |
| |
| static int acpi_sci_irq(void) |
| { |
| int sci_irq = 9; |
| return sci_irq; |
| } |
| |
| static unsigned long acpi_madt_irq_overrides(unsigned long current) |
| { |
| int sci = acpi_sci_irq(); |
| uint16_t flags = MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_LOW;; |
| |
| /* INT_SRC_OVR */ |
| current += acpi_create_madt_irqoverride((void *)current, 0, 0, 2, 0); |
| |
| /* SCI */ |
| current += acpi_create_madt_irqoverride((void *)current, 0, sci, sci, flags); |
| |
| return current; |
| } |
| |
| unsigned long acpi_fill_madt(unsigned long current) |
| { |
| /* Local APICs */ |
| current = acpi_create_madt_lapics(current); |
| |
| /* IOAPIC */ |
| current += acpi_create_madt_ioapic((void *) current, |
| 2, IO_APIC_ADDR, 0); |
| |
| return acpi_madt_irq_overrides(current); |
| } |
| |
| void acpi_fill_fadt(acpi_fadt_t * fadt) |
| { |
| const uint16_t pmbase = ACPI_PMIO_BASE; |
| |
| /* Use ACPI 5.0 revision. */ |
| fadt->header.revision = ACPI_FADT_REV_ACPI_5_0; |
| |
| fadt->sci_int = acpi_sci_irq(); |
| fadt->smi_cmd = 0; /* No Smi Handler as SMI_CMD is 0*/ |
| |
| fadt->pm1a_evt_blk = pmbase + PM1_STS; |
| fadt->pm1a_cnt_blk = pmbase + PM1_CNT; |
| fadt->pm_tmr_blk = pmbase + PM1_TMR; |
| fadt->gpe0_blk = pmbase + GPE0_STS(0); |
| |
| fadt->pm1_evt_len = 4; |
| fadt->pm1_cnt_len = 2; |
| fadt->pm_tmr_len = 4; |
| /* There are 4 GPE0 STS/EN pairs each 32 bits wide. */ |
| fadt->gpe0_blk_len = 2 * GPE0_REG_MAX * sizeof(uint32_t); |
| fadt->p_lvl2_lat = ACPI_FADT_C2_NOT_SUPPORTED; |
| fadt->p_lvl3_lat = ACPI_FADT_C3_NOT_SUPPORTED; |
| fadt->flush_size = 0x400; /* twice of cache size*/ |
| fadt->flush_stride = 0x10; /* Cache line width */ |
| fadt->duty_offset = 1; |
| fadt->duty_width = 3; |
| fadt->day_alrm = 0xd; |
| fadt->iapc_boot_arch = ACPI_FADT_LEGACY_DEVICES | ACPI_FADT_8042; |
| |
| fadt->flags = ACPI_FADT_WBINVD | ACPI_FADT_C1_SUPPORTED | |
| ACPI_FADT_C2_MP_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.addrl = 0xcf9; |
| fadt->reset_value = 6; |
| |
| fadt->x_pm1a_evt_blk.space_id = 1; |
| fadt->x_pm1a_evt_blk.bit_width = fadt->pm1_evt_len * 8; |
| fadt->x_pm1a_evt_blk.addrl = pmbase + PM1_STS; |
| |
| fadt->x_pm1b_evt_blk.space_id = 1; |
| |
| fadt->x_pm1a_cnt_blk.space_id = 1; |
| fadt->x_pm1a_cnt_blk.bit_width = fadt->pm1_cnt_len * 8; |
| fadt->x_pm1a_cnt_blk.addrl = pmbase + PM1_CNT; |
| |
| fadt->x_pm1b_cnt_blk.space_id = 1; |
| |
| fadt->x_pm_tmr_blk.space_id = 1; |
| fadt->x_pm_tmr_blk.bit_width = fadt->pm_tmr_len * 8; |
| fadt->x_pm_tmr_blk.addrl = pmbase + PM1_TMR; |
| |
| fadt->x_gpe1_blk.space_id = 1; |
| } |
| |
| unsigned long southbridge_write_acpi_tables(device_t device, |
| unsigned long current, |
| struct acpi_rsdp *rsdp) |
| { |
| return acpi_write_hpet(device, current, rsdp); |
| } |
| |
| static void acpi_create_gnvs(struct global_nvs_t *gnvs) |
| { |
| if (IS_ENABLED(CONFIG_CHROMEOS)) { |
| /* Initialize Verified Boot data */ |
| chromeos_init_vboot(&gnvs->chromeos); |
| gnvs->chromeos.vbt2 = ACTIVE_ECFW_RO; |
| } |
| } |
| |
| void southbridge_inject_dsdt(device_t device) |
| { |
| struct global_nvs_t *gnvs; |
| |
| gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS); |
| |
| if (gnvs) { |
| acpi_create_gnvs(gnvs); |
| acpi_save_gnvs((uintptr_t)gnvs); |
| |
| /* Add it to DSDT. */ |
| acpigen_write_scope("\\"); |
| acpigen_write_name_dword("NVSA", (uintptr_t)gnvs); |
| acpigen_pop_len(); |
| } |
| } |
| static acpi_cstate_t cstate_map[] = { |
| { |
| /* C1 */ |
| .ctype = 1, /* ACPI C1 */ |
| .latency = 1, |
| .power = 1000, |
| .resource = CSTATE_RES(ACPI_ADDRESS_SPACE_FIXED, 0, 0, 0), |
| }, |
| { |
| .ctype = 2, /* ACPI C2 */ |
| .latency = 50, |
| .power = 10, |
| .resource = CSTATE_RES(ACPI_ADDRESS_SPACE_IO, 8, 0, 0x415), |
| }, |
| { |
| .ctype = 3, /* ACPI C3 */ |
| .latency = 150, |
| .power = 10, |
| .resource = CSTATE_RES(ACPI_ADDRESS_SPACE_IO, 8, 0, 0x419), |
| } |
| }; |
| |
| acpi_cstate_t *soc_get_cstate_map(int *entries) |
| { |
| *entries = ARRAY_SIZE(cstate_map); |
| return cstate_map; |
| } |
| |
| uint16_t soc_get_acpi_base_address(void) |
| { |
| return ACPI_PMIO_BASE; |
| } |