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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright (c) 2017 Intel Corporation
- *
- * Partially based on acpi.c for other x86 platforms
- */
- #include <common.h>
- #include <cpu.h>
- #include <dm.h>
- #include <acpi/acpi_table.h>
- #include <asm/ioapic.h>
- #include <asm/mpspec.h>
- #include <asm/tables.h>
- #include <asm/arch/global_nvs.h>
- #include <asm/arch/iomap.h>
- #include <dm/uclass-internal.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,
- MCFG_BASE_ADDRESS, 0x0, 0x0, 0x0);
- return current;
- }
- static u32 acpi_fill_csrt_dma(struct acpi_csrt_group *grp)
- {
- struct acpi_csrt_shared_info *si = (struct acpi_csrt_shared_info *)&grp[1];
- /* Fill the Resource Group with Shared Information attached */
- memset(grp, 0, sizeof(*grp));
- grp->shared_info_length = sizeof(struct acpi_csrt_shared_info);
- grp->length = sizeof(struct acpi_csrt_group) + grp->shared_info_length;
- /* TODO: All values below should come from U-Boot DT somehow */
- sprintf((char *)&grp->vendor_id, "%04X", 0x8086);
- grp->device_id = 0x11a2;
- /* Fill the Resource Group Shared Information */
- memset(si, 0, sizeof(*si));
- si->major_version = 1;
- si->minor_version = 0;
- /* TODO: All values below should come from U-Boot DT somehow */
- si->mmio_base_low = 0xff192000;
- si->mmio_base_high = 0;
- si->gsi_interrupt = 32;
- si->interrupt_polarity = 0; /* Active High */
- si->interrupt_mode = 0; /* Level triggered */
- si->num_channels = 8;
- si->dma_address_width = 32;
- si->base_request_line = 0;
- si->num_handshake_signals = 16;
- si->max_block_size = 0x1ffff;
- return grp->length;
- }
- u32 acpi_fill_csrt(u32 current)
- {
- current += acpi_fill_csrt_dma((struct acpi_csrt_group *)current);
- return current;
- }
- int 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;
- }
- return 0;
- }
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