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