87 lines
2.0 KiB
C
87 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2017 Intel Corporation
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*
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* Partially based on acpi.c for other x86 platforms
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*/
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#include <common.h>
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#include <cpu.h>
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#include <dm.h>
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#include <dm/uclass-internal.h>
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#include <asm/acpi_table.h>
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#include <asm/ioapic.h>
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#include <asm/mpspec.h>
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#include <asm/tables.h>
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#include <asm/arch/global_nvs.h>
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void acpi_create_fadt(struct acpi_fadt *fadt, struct acpi_facs *facs,
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void *dsdt)
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{
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struct acpi_table_header *header = &(fadt->header);
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memset((void *)fadt, 0, sizeof(struct acpi_fadt));
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acpi_fill_header(header, "FACP");
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header->length = sizeof(struct acpi_fadt);
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header->revision = 6;
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fadt->firmware_ctrl = (u32)facs;
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fadt->dsdt = (u32)dsdt;
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fadt->preferred_pm_profile = ACPI_PM_UNSPECIFIED;
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fadt->iapc_boot_arch = ACPI_FADT_VGA_NOT_PRESENT |
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ACPI_FADT_NO_PCIE_ASPM_CONTROL;
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fadt->flags =
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ACPI_FADT_WBINVD |
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ACPI_FADT_POWER_BUTTON | ACPI_FADT_SLEEP_BUTTON |
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ACPI_FADT_SEALED_CASE | ACPI_FADT_HEADLESS |
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ACPI_FADT_HW_REDUCED_ACPI;
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fadt->minor_revision = 2;
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fadt->x_firmware_ctl_l = (u32)facs;
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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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header->checksum = table_compute_checksum(fadt, header->length);
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}
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u32 acpi_fill_madt(u32 current)
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{
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current += acpi_create_madt_lapics(current);
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current += acpi_create_madt_ioapic((struct acpi_madt_ioapic *)current,
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io_apic_read(IO_APIC_ID) >> 24, IO_APIC_ADDR, 0);
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return current;
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}
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u32 acpi_fill_mcfg(u32 current)
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{
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/* TODO: Derive parameters from SFI MCFG table */
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current += acpi_create_mcfg_mmconfig
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((struct acpi_mcfg_mmconfig *)current,
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0x3f500000, 0x0, 0x0, 0x0);
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return current;
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}
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void acpi_create_gnvs(struct acpi_global_nvs *gnvs)
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{
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struct udevice *dev;
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int ret;
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/* at least we have one processor */
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gnvs->pcnt = 1;
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/* override the processor count with actual number */
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ret = uclass_find_first_device(UCLASS_CPU, &dev);
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if (ret == 0 && dev != NULL) {
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ret = cpu_get_count(dev);
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if (ret > 0)
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gnvs->pcnt = ret;
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}
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}
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