| Andy Shevchenko | 286e77f | 2017-10-03 14:55:07 +0300 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2017 Intel Corporation |
| 3 | * |
| 4 | * Partially based on acpi.c for other x86 platforms |
| 5 | * |
| 6 | * SPDX-License-Identifier: GPL-2.0+ |
| 7 | */ |
| 8 | |
| 9 | #include <common.h> |
| 10 | #include <cpu.h> |
| 11 | #include <dm.h> |
| 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> |
| 18 | |
| 19 | void acpi_create_fadt(struct acpi_fadt *fadt, struct acpi_facs *facs, |
| 20 | void *dsdt) |
| 21 | { |
| 22 | struct acpi_table_header *header = &(fadt->header); |
| 23 | |
| 24 | memset((void *)fadt, 0, sizeof(struct acpi_fadt)); |
| 25 | |
| 26 | acpi_fill_header(header, "FACP"); |
| 27 | header->length = sizeof(struct acpi_fadt); |
| 28 | header->revision = 6; |
| 29 | |
| 30 | fadt->firmware_ctrl = (u32)facs; |
| 31 | fadt->dsdt = (u32)dsdt; |
| 32 | fadt->preferred_pm_profile = ACPI_PM_UNSPECIFIED; |
| 33 | |
| 34 | fadt->iapc_boot_arch = ACPI_FADT_VGA_NOT_PRESENT | |
| 35 | ACPI_FADT_NO_PCIE_ASPM_CONTROL; |
| 36 | fadt->flags = |
| 37 | ACPI_FADT_WBINVD | |
| 38 | ACPI_FADT_POWER_BUTTON | ACPI_FADT_SLEEP_BUTTON | |
| 39 | ACPI_FADT_SEALED_CASE | ACPI_FADT_HEADLESS | |
| 40 | ACPI_FADT_HW_REDUCED_ACPI; |
| 41 | |
| 42 | fadt->minor_revision = 2; |
| 43 | |
| 44 | fadt->x_firmware_ctl_l = (u32)facs; |
| 45 | fadt->x_firmware_ctl_h = 0; |
| 46 | fadt->x_dsdt_l = (u32)dsdt; |
| 47 | fadt->x_dsdt_h = 0; |
| 48 | |
| 49 | header->checksum = table_compute_checksum(fadt, header->length); |
| 50 | } |
| 51 | |
| 52 | u32 acpi_fill_madt(u32 current) |
| 53 | { |
| 54 | current += acpi_create_madt_lapics(current); |
| 55 | |
| 56 | current += acpi_create_madt_ioapic((struct acpi_madt_ioapic *)current, |
| 57 | io_apic_read(IO_APIC_ID) >> 24, IO_APIC_ADDR, 0); |
| 58 | |
| 59 | return current; |
| 60 | } |
| 61 | |
| 62 | u32 acpi_fill_mcfg(u32 current) |
| 63 | { |
| 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); |
| 68 | |
| 69 | return current; |
| 70 | } |
| 71 | |
| 72 | void acpi_create_gnvs(struct acpi_global_nvs *gnvs) |
| 73 | { |
| 74 | struct udevice *dev; |
| 75 | int ret; |
| 76 | |
| 77 | /* at least we have one processor */ |
| 78 | gnvs->pcnt = 1; |
| 79 | |
| 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); |
| 84 | if (ret > 0) |
| 85 | gnvs->pcnt = ret; |
| 86 | } |
| 87 | } |