2 * Copyright (c) 2017 Intel Corporation
4 * Partially based on acpi.c for other x86 platforms
6 * SPDX-License-Identifier: GPL-2.0+
12 #include <dm/uclass-internal.h>
13 #include <asm/acpi_table.h>
14 #include <asm/ioapic.h>
15 #include <asm/mpspec.h>
16 #include <asm/tables.h>
17 #include <asm/arch/global_nvs.h>
19 void acpi_create_fadt(struct acpi_fadt *fadt, struct acpi_facs *facs,
22 struct acpi_table_header *header = &(fadt->header);
24 memset((void *)fadt, 0, sizeof(struct acpi_fadt));
26 acpi_fill_header(header, "FACP");
27 header->length = sizeof(struct acpi_fadt);
30 fadt->firmware_ctrl = (u32)facs;
31 fadt->dsdt = (u32)dsdt;
32 fadt->preferred_pm_profile = ACPI_PM_UNSPECIFIED;
34 fadt->iapc_boot_arch = ACPI_FADT_VGA_NOT_PRESENT |
35 ACPI_FADT_NO_PCIE_ASPM_CONTROL;
38 ACPI_FADT_POWER_BUTTON | ACPI_FADT_SLEEP_BUTTON |
39 ACPI_FADT_SEALED_CASE | ACPI_FADT_HEADLESS |
40 ACPI_FADT_HW_REDUCED_ACPI;
42 fadt->minor_revision = 2;
44 fadt->x_firmware_ctl_l = (u32)facs;
45 fadt->x_firmware_ctl_h = 0;
46 fadt->x_dsdt_l = (u32)dsdt;
49 header->checksum = table_compute_checksum(fadt, header->length);
52 u32 acpi_fill_madt(u32 current)
54 current += acpi_create_madt_lapics(current);
56 current += acpi_create_madt_ioapic((struct acpi_madt_ioapic *)current,
57 io_apic_read(IO_APIC_ID) >> 24, IO_APIC_ADDR, 0);
62 u32 acpi_fill_mcfg(u32 current)
64 /* TODO: Derive parameters from SFI MCFG table */
65 current += acpi_create_mcfg_mmconfig
66 ((struct acpi_mcfg_mmconfig *)current,
67 0x3f500000, 0x0, 0x0, 0x0);
72 void acpi_create_gnvs(struct acpi_global_nvs *gnvs)
77 /* at least we have one processor */
80 /* override the processor count with actual number */
81 ret = uclass_find_first_device(UCLASS_CPU, &dev);
82 if (ret == 0 && dev != NULL) {
83 ret = cpu_get_count(dev);