2020-04-04 18:50:57 +02:00
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/* SPDX-License-Identifier: GPL-2.0-only */
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/* This file is part of the coreboot project. */
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2019-04-22 22:55:16 +02:00
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/*
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* ACPI - create the Fixed ACPI Description Tables (FADT)
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*/
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#include <string.h>
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#include <console/console.h>
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#include <arch/acpi.h>
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#include <arch/acpigen.h>
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#include <device/pci_ops.h>
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#include <arch/ioapic.h>
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#include <cpu/x86/smm.h>
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#include <cbmem.h>
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#include <device/device.h>
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#include <device/pci.h>
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#include <amdblocks/acpimmio.h>
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#include <amdblocks/acpi.h>
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#include <soc/acpi.h>
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#include <soc/pci_devs.h>
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2019-07-16 23:18:00 +02:00
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#include <soc/cpu.h>
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2019-04-22 22:55:16 +02:00
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#include <soc/southbridge.h>
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#include <soc/northbridge.h>
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#include <soc/nvs.h>
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#include <soc/gpio.h>
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#include <version.h>
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unsigned long acpi_fill_madt(unsigned long current)
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{
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/* create all subtables for processors */
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current = acpi_create_madt_lapics(current);
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/* Write Kern IOAPIC, only one */
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current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *)current,
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CONFIG_MAX_CPUS, IO_APIC_ADDR, 0);
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/* 0: mean bus 0--->ISA */
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/* 0: PIC 0 */
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/* 2: APIC 2 */
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/* 5 mean: 0101 --> Edge-triggered, Active high */
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current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
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current, 0, 0, 2, 0);
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current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
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current, 0, 9, 9, 0xf);
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/* create all subtables for processors */
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current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *)current,
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0xff, 5, 1);
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/* 1: LINT1 connect to NMI */
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return current;
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}
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/*
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* Reference section 5.2.9 Fixed ACPI Description Table (FADT)
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* in the ACPI 3.0b specification.
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*/
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void acpi_create_fadt(acpi_fadt_t *fadt, acpi_facs_t *facs, void *dsdt)
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{
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acpi_header_t *header = &(fadt->header);
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2019-06-11 20:18:20 +02:00
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printk(BIOS_DEBUG, "pm_base: 0x%04x\n", PICASSO_ACPI_IO_BASE);
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2019-04-22 22:55:16 +02:00
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/* Prepare the header */
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memset((void *)fadt, 0, sizeof(acpi_fadt_t));
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memcpy(header->signature, "FACP", 4);
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header->length = sizeof(acpi_fadt_t);
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header->revision = get_acpi_table_revision(FADT);
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memcpy(header->oem_id, OEM_ID, 6);
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memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
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memcpy(header->asl_compiler_id, ASLC, 4);
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header->asl_compiler_revision = asl_revision;
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fadt->firmware_ctrl = (u32) facs;
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fadt->dsdt = (u32) dsdt;
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fadt->reserved = 0; /* reserved, should be 0 ACPI 3.0 */
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fadt->preferred_pm_profile = FADT_PM_PROFILE;
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fadt->sci_int = 9; /* IRQ 09 - ACPI SCI */
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if (CONFIG(HAVE_SMI_HANDLER)) {
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fadt->smi_cmd = APM_CNT;
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fadt->acpi_enable = APM_CNT_ACPI_ENABLE;
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fadt->acpi_disable = APM_CNT_ACPI_DISABLE;
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fadt->s4bios_req = 0; /* Not supported */
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fadt->pstate_cnt = 0; /* Not supported */
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fadt->cst_cnt = 0; /* Not supported */
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} else {
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fadt->smi_cmd = 0; /* disable system management mode */
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fadt->acpi_enable = 0; /* unused if SMI_CMD = 0 */
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fadt->acpi_disable = 0; /* unused if SMI_CMD = 0 */
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fadt->s4bios_req = 0; /* unused if SMI_CMD = 0 */
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fadt->pstate_cnt = 0; /* unused if SMI_CMD = 0 */
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fadt->cst_cnt = 0x00; /* unused if SMI_CMD = 0 */
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}
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fadt->pm1a_evt_blk = ACPI_PM_EVT_BLK;
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fadt->pm1b_evt_blk = 0x0000;
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fadt->pm1a_cnt_blk = ACPI_PM1_CNT_BLK;
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fadt->pm1b_cnt_blk = 0x0000;
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fadt->pm2_cnt_blk = 0x0000;
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fadt->pm_tmr_blk = ACPI_PM_TMR_BLK;
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fadt->gpe0_blk = ACPI_GPE0_BLK;
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fadt->gpe1_blk = 0x0000; /* No gpe1 block */
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fadt->pm1_evt_len = 4; /* 32 bits */
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fadt->pm1_cnt_len = 2; /* 16 bits */
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fadt->pm2_cnt_len = 0;
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fadt->pm_tmr_len = 4; /* 32 bits */
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fadt->gpe0_blk_len = 8; /* 64 bits */
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fadt->gpe1_blk_len = 0;
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fadt->gpe1_base = 0;
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fadt->p_lvl2_lat = ACPI_FADT_C2_NOT_SUPPORTED;
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fadt->p_lvl3_lat = ACPI_FADT_C3_NOT_SUPPORTED;
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fadt->flush_size = 0; /* set to 0 if WBINVD is 1 in flags */
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fadt->flush_stride = 0; /* set to 0 if WBINVD is 1 in flags */
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fadt->duty_offset = 1; /* CLK_VAL bits 3:1 */
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fadt->duty_width = 3; /* CLK_VAL bits 3:1 */
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fadt->day_alrm = 0; /* 0x7d these have to be */
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fadt->mon_alrm = 0; /* 0x7e added to cmos.layout */
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fadt->century = 0; /* 0x7f to make rtc alarm work */
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2019-06-21 00:28:33 +02:00
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fadt->iapc_boot_arch = ACPI_FADT_LEGACY_DEVICES | ACPI_FADT_8042;
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2019-04-22 22:55:16 +02:00
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fadt->res2 = 0; /* reserved, MUST be 0 ACPI 3.0 */
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fadt->flags = ACPI_FADT_WBINVD | /* See table 5-10 ACPI 3.0a spec */
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ACPI_FADT_C1_SUPPORTED |
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ACPI_FADT_SLEEP_BUTTON |
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ACPI_FADT_S4_RTC_WAKE |
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ACPI_FADT_32BIT_TIMER |
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ACPI_FADT_RESET_REGISTER |
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ACPI_FADT_PCI_EXPRESS_WAKE |
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ACPI_FADT_PLATFORM_CLOCK |
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ACPI_FADT_S4_RTC_VALID |
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ACPI_FADT_REMOTE_POWER_ON;
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/* Format is from 5.2.3.1: Generic Address Structure */
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/* reset_reg: see section 4.7.3.6 ACPI 3.0a spec */
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/* 8 bit write of value 0x06 to 0xCF9 in IO space */
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fadt->reset_reg.space_id = ACPI_ADDRESS_SPACE_IO;
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fadt->reset_reg.bit_width = 8;
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fadt->reset_reg.bit_offset = 0;
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fadt->reset_reg.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
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fadt->reset_reg.addrl = SYS_RESET;
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fadt->reset_reg.addrh = 0x0;
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fadt->reset_value = 6;
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fadt->ARM_boot_arch = 0; /* MUST be 0 ACPI 3.0 */
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fadt->FADT_MinorVersion = 0; /* MUST be 0 ACPI 3.0 */
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fadt->x_firmware_ctl_l = 0; /* set to 0 if firmware_ctrl is used */
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fadt->x_firmware_ctl_h = 0;
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fadt->x_dsdt_l = (u32) dsdt;
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fadt->x_dsdt_h = 0;
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fadt->x_pm1a_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
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fadt->x_pm1a_evt_blk.bit_width = 32;
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fadt->x_pm1a_evt_blk.bit_offset = 0;
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fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS;
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fadt->x_pm1a_evt_blk.addrl = ACPI_PM_EVT_BLK;
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fadt->x_pm1a_evt_blk.addrh = 0x0;
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fadt->x_pm1b_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
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fadt->x_pm1b_evt_blk.bit_width = 0;
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fadt->x_pm1b_evt_blk.bit_offset = 0;
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fadt->x_pm1b_evt_blk.access_size = 0;
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fadt->x_pm1b_evt_blk.addrl = 0x0;
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fadt->x_pm1b_evt_blk.addrh = 0x0;
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fadt->x_pm1a_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
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fadt->x_pm1a_cnt_blk.bit_width = 16;
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fadt->x_pm1a_cnt_blk.bit_offset = 0;
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2020-02-28 10:19:41 +01:00
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fadt->x_pm1a_cnt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS;
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2019-04-22 22:55:16 +02:00
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fadt->x_pm1a_cnt_blk.addrl = ACPI_PM1_CNT_BLK;
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fadt->x_pm1a_cnt_blk.addrh = 0x0;
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fadt->x_pm1b_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
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fadt->x_pm1b_cnt_blk.bit_width = 0;
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fadt->x_pm1b_cnt_blk.bit_offset = 0;
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fadt->x_pm1b_cnt_blk.access_size = 0;
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fadt->x_pm1b_cnt_blk.addrl = 0x0;
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fadt->x_pm1b_cnt_blk.addrh = 0x0;
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/*
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* Note: Under this current AMD C state implementation, this is no
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* longer used and should not be reported to OS.
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*/
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fadt->x_pm2_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
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fadt->x_pm2_cnt_blk.bit_width = 0;
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fadt->x_pm2_cnt_blk.bit_offset = 0;
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fadt->x_pm2_cnt_blk.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
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fadt->x_pm2_cnt_blk.addrl = 0;
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fadt->x_pm2_cnt_blk.addrh = 0x0;
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fadt->x_pm_tmr_blk.space_id = ACPI_ADDRESS_SPACE_IO;
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fadt->x_pm_tmr_blk.bit_width = 32;
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fadt->x_pm_tmr_blk.bit_offset = 0;
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fadt->x_pm_tmr_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
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fadt->x_pm_tmr_blk.addrl = ACPI_PM_TMR_BLK;
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fadt->x_pm_tmr_blk.addrh = 0x0;
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fadt->x_gpe0_blk.space_id = ACPI_ADDRESS_SPACE_IO;
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fadt->x_gpe0_blk.bit_width = 64; /* EventStatus + Event Enable */
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fadt->x_gpe0_blk.bit_offset = 0;
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fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
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fadt->x_gpe0_blk.addrl = ACPI_GPE0_BLK;
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fadt->x_gpe0_blk.addrh = 0x0;
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fadt->x_gpe1_blk.space_id = ACPI_ADDRESS_SPACE_IO;
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fadt->x_gpe1_blk.bit_width = 0;
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fadt->x_gpe1_blk.bit_offset = 0;
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fadt->x_gpe1_blk.access_size = 0;
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fadt->x_gpe1_blk.addrl = 0;
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fadt->x_gpe1_blk.addrh = 0x0;
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header->checksum = acpi_checksum((void *)fadt, sizeof(acpi_fadt_t));
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}
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void generate_cpu_entries(struct device *device)
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{
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int cores, cpu;
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2019-07-16 23:18:00 +02:00
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cores = get_cpu_count();
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2020-03-20 13:56:46 +01:00
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printk(BIOS_DEBUG, "ACPI \\_SB report %d core(s)\n", cores);
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2019-04-22 22:55:16 +02:00
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2020-03-20 13:56:46 +01:00
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/* Generate BSP \_SB.P000 */
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2019-04-22 22:55:16 +02:00
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acpigen_write_processor(0, ACPI_GPE0_BLK, 6);
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acpigen_pop_len();
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2020-03-20 13:56:46 +01:00
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/* Generate AP \_SB.Pxxx */
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2019-04-22 22:55:16 +02:00
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for (cpu = 1; cpu < cores; cpu++) {
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acpigen_write_processor(cpu, 0, 0);
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acpigen_pop_len();
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}
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}
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2020-04-24 15:41:18 +02:00
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unsigned long southbridge_write_acpi_tables(const struct device *device,
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2019-04-22 22:55:16 +02:00
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unsigned long current,
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struct acpi_rsdp *rsdp)
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{
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return acpi_write_hpet(device, current, rsdp);
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}
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static void acpi_create_gnvs(struct global_nvs_t *gnvs)
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{
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/* Clear out GNVS. */
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memset(gnvs, 0, sizeof(*gnvs));
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if (CONFIG(CONSOLE_CBMEM))
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gnvs->cbmc = (uintptr_t)cbmem_find(CBMEM_ID_CONSOLE);
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if (CONFIG(CHROMEOS)) {
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/* Initialize Verified Boot data */
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chromeos_init_chromeos_acpi(&gnvs->chromeos);
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gnvs->chromeos.vbt2 = ACTIVE_ECFW_RO;
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}
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/* Set unknown wake source */
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gnvs->pm1i = ~0ULL;
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gnvs->gpei = ~0ULL;
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/* CPU core count */
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gnvs->pcnt = dev_count_cpu();
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}
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void southbridge_inject_dsdt(struct device *device)
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{
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struct global_nvs_t *gnvs;
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gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS);
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if (gnvs) {
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acpi_create_gnvs(gnvs);
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/* Add it to DSDT */
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acpigen_write_scope("\\");
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acpigen_write_name_dword("NVSA", (uintptr_t)gnvs);
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acpigen_pop_len();
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}
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}
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static void acpigen_soc_get_gpio_in_local5(uintptr_t addr)
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{
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/*
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* Store (\_SB.GPR2 (addr), Local5)
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* \_SB.GPR2 is used to read control byte 2 from control register.
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* / It is defined in gpio_lib.asl.
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*/
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acpigen_write_store();
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acpigen_emit_namestring("\\_SB.GPR2");
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acpigen_write_integer(addr);
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acpigen_emit_byte(LOCAL5_OP);
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}
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static int acpigen_soc_get_gpio_val(unsigned int gpio_num, uint32_t mask)
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{
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if (gpio_num >= SOC_GPIO_TOTAL_PINS) {
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printk(BIOS_WARNING, "Warning: Pin %d should be smaller than"
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" %d\n", gpio_num, SOC_GPIO_TOTAL_PINS);
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return -1;
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}
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uintptr_t addr = (uintptr_t) gpio_get_address(gpio_num);
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acpigen_soc_get_gpio_in_local5(addr);
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/* If (And (Local5, mask)) */
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acpigen_write_if_and(LOCAL5_OP, mask);
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/* Store (One, Local0) */
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acpigen_write_store_ops(ONE_OP, LOCAL0_OP);
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acpigen_pop_len(); /* If */
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/* Else */
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acpigen_write_else();
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/* Store (Zero, Local0) */
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acpigen_write_store_ops(ZERO_OP, LOCAL0_OP);
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acpigen_pop_len(); /* Else */
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return 0;
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}
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static int acpigen_soc_set_gpio_val(unsigned int gpio_num, uint32_t val)
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|
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|
{
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if (gpio_num >= SOC_GPIO_TOTAL_PINS) {
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printk(BIOS_WARNING, "Warning: Pin %d should be smaller than"
|
|
|
|
" %d\n", gpio_num, SOC_GPIO_TOTAL_PINS);
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|
|
return -1;
|
|
|
|
}
|
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|
|
uintptr_t addr = (uintptr_t) gpio_get_address(gpio_num);
|
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|
|
|
|
|
|
/* Store (0x40, Local0) */
|
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|
|
acpigen_write_store();
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|
acpigen_write_integer(GPIO_PIN_OUT);
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|
|
acpigen_emit_byte(LOCAL0_OP);
|
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|
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|
|
acpigen_soc_get_gpio_in_local5(addr);
|
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|
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|
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|
|
if (val) {
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|
|
/* Or (Local5, GPIO_PIN_OUT, Local5) */
|
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|
acpigen_write_or(LOCAL5_OP, LOCAL0_OP, LOCAL5_OP);
|
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|
|
} else {
|
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|
|
/* Not (GPIO_PIN_OUT, Local6) */
|
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|
|
acpigen_write_not(LOCAL0_OP, LOCAL6_OP);
|
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|
|
|
|
|
|
/* And (Local5, Local6, Local5) */
|
|
|
|
acpigen_write_and(LOCAL5_OP, LOCAL6_OP, LOCAL5_OP);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* SB.GPW2 (addr, Local5)
|
|
|
|
* \_SB.GPW2 is used to write control byte in control register
|
|
|
|
* / byte 2. It is defined in gpio_lib.asl.
|
|
|
|
*/
|
|
|
|
acpigen_emit_namestring("\\_SB.GPW2");
|
|
|
|
acpigen_write_integer(addr);
|
|
|
|
acpigen_emit_byte(LOCAL5_OP);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
int acpigen_soc_read_rx_gpio(unsigned int gpio_num)
|
|
|
|
{
|
|
|
|
return acpigen_soc_get_gpio_val(gpio_num, GPIO_PIN_IN);
|
|
|
|
}
|
|
|
|
|
|
|
|
int acpigen_soc_get_tx_gpio(unsigned int gpio_num)
|
|
|
|
{
|
|
|
|
return acpigen_soc_get_gpio_val(gpio_num, GPIO_PIN_OUT);
|
|
|
|
}
|
|
|
|
|
|
|
|
int acpigen_soc_set_tx_gpio(unsigned int gpio_num)
|
|
|
|
{
|
|
|
|
return acpigen_soc_set_gpio_val(gpio_num, 1);
|
|
|
|
}
|
|
|
|
|
|
|
|
int acpigen_soc_clear_tx_gpio(unsigned int gpio_num)
|
|
|
|
{
|
|
|
|
return acpigen_soc_set_gpio_val(gpio_num, 0);
|
|
|
|
}
|