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https://github.com/AsahiLinux/u-boot
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78031ad431
Update this function to the newer style, so we can avoid passing and returning an address through this function. Also move this function out of the x86 code so it can be used by other archs. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
139 lines
3.4 KiB
C
139 lines
3.4 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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static int tangier_write_fadt(struct acpi_ctx *ctx,
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const struct acpi_writer *entry)
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{
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struct acpi_table_header *header;
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struct acpi_fadt *fadt;
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fadt = ctx->current;
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header = &fadt->header;
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memset(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)ctx->facs;
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fadt->dsdt = (u32)ctx->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)ctx->facs;
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fadt->x_firmware_ctl_h = 0;
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fadt->x_dsdt_l = (u32)ctx->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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acpi_inc(ctx, sizeof(struct acpi_fadt));
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return 0;
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}
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ACPI_WRITER(5fadt, "FACP", tangier_write_fadt, 0);
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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 = 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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