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f5f7962091
Write the FADT in common code since it's used on all architectures. Since the FADT is mandatory all SoCs or mainboards must implement the introduced function acpi_fill_fadt() and properly update the FADT. Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-by: Simon Glass <sjg@chromium.org> Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com>
115 lines
2.8 KiB
C
115 lines
2.8 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 <cpu.h>
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#include <dm.h>
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#include <mapmem.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_fill_fadt(struct acpi_fadt *fadt)
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{
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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->header.revision = 6;
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fadt->minor_revision = 2;
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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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int acpi_fill_mcfg(struct acpi_ctx *ctx)
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{
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size_t size;
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/* TODO: Derive parameters from SFI MCFG table */
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size = acpi_create_mcfg_mmconfig
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((struct acpi_mcfg_mmconfig *)ctx->current,
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MCFG_BASE_ADDRESS, 0x0, 0x0, 0x0);
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acpi_inc(ctx, size);
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return 0;
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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 = 0; /* Active High */
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si->interrupt_mode = 0; /* Level triggered */
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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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int acpi_fill_csrt(struct acpi_ctx *ctx)
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{
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int size;
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size = acpi_fill_csrt_dma(ctx->current);
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acpi_inc(ctx, size);
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return 0;
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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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