// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 2017 Intel Corporation * * Partially based on acpi.c for other x86 platforms */ #include #include #include #include #include #include #include #include #include #include static int tangier_write_fadt(struct acpi_ctx *ctx, const struct acpi_writer *entry) { struct acpi_table_header *header; struct acpi_fadt *fadt; fadt = ctx->current; header = &fadt->header; memset(fadt, '\0', sizeof(struct acpi_fadt)); acpi_fill_header(header, "FACP"); header->length = sizeof(struct acpi_fadt); header->revision = 6; fadt->firmware_ctrl = (u32)ctx->facs; fadt->dsdt = (u32)ctx->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)ctx->facs; fadt->x_firmware_ctl_h = 0; fadt->x_dsdt_l = (u32)ctx->dsdt; fadt->x_dsdt_h = 0; header->checksum = table_compute_checksum(fadt, header->length); acpi_add_table(ctx, fadt); acpi_inc(ctx, sizeof(struct acpi_fadt)); return 0; } ACPI_WRITER(5fadt, "FADT", tangier_write_fadt, 0); 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; } int acpi_fill_mcfg(struct acpi_ctx *ctx) { size_t size; /* TODO: Derive parameters from SFI MCFG table */ size = acpi_create_mcfg_mmconfig ((struct acpi_mcfg_mmconfig *)ctx->current, MCFG_BASE_ADDRESS, 0x0, 0x0, 0x0); acpi_inc(ctx, size); return 0; } 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; } int acpi_fill_csrt(struct acpi_ctx *ctx) { int size; size = acpi_fill_csrt_dma(ctx->current); acpi_inc(ctx, size); return 0; } 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; }