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https://github.com/brain-hackers/u-boot-brain
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8d7ff12e63
In some cases an internal error may prevent this from working. Update the function return value and report the error. At present the API for writing tables does not easily support reporting errors, but once it is fully updated to use a context pointer, this will be easier. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
128 lines
3.1 KiB
C
128 lines
3.1 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 <acpi/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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#include <asm/arch/iomap.h>
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#include <dm/uclass-internal.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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MCFG_BASE_ADDRESS, 0x0, 0x0, 0x0);
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return current;
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}
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static u32 acpi_fill_csrt_dma(struct acpi_csrt_group *grp)
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{
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struct acpi_csrt_shared_info *si = (struct acpi_csrt_shared_info *)&grp[1];
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/* Fill the Resource Group with Shared Information attached */
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memset(grp, 0, sizeof(*grp));
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grp->shared_info_length = sizeof(struct acpi_csrt_shared_info);
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grp->length = sizeof(struct acpi_csrt_group) + grp->shared_info_length;
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/* TODO: All values below should come from U-Boot DT somehow */
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sprintf((char *)&grp->vendor_id, "%04X", 0x8086);
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grp->device_id = 0x11a2;
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/* Fill the Resource Group Shared Information */
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memset(si, 0, sizeof(*si));
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si->major_version = 1;
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si->minor_version = 0;
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/* TODO: All values below should come from U-Boot DT somehow */
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si->mmio_base_low = 0xff192000;
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si->mmio_base_high = 0;
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si->gsi_interrupt = 32;
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si->interrupt_polarity = 1;
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si->interrupt_mode = 0;
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si->num_channels = 8;
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si->dma_address_width = 32;
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si->base_request_line = 0;
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si->num_handshake_signals = 16;
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si->max_block_size = 0x1ffff;
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return grp->length;
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}
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u32 acpi_fill_csrt(u32 current)
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{
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current += acpi_fill_csrt_dma((struct acpi_csrt_group *)current);
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return current;
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}
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int 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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return 0;
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}
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