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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 | // SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 2017 Intel Corporation * * Partially based on acpi.c for other x86 platforms */ #include <cpu.h> #include <dm.h> #include <mapmem.h> #include <acpi/acpi_table.h> #include <asm/ioapic.h> #include <asm/lapic.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_fill_fadt(struct acpi_fadt *fadt) { 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; } void *acpi_fill_madt(struct acpi_madt *madt, struct acpi_ctx *ctx) { void *current = ctx->current; madt->lapic_addr = LAPIC_DEFAULT_BASE; madt->flags = ACPI_MADT_PCAT_COMPAT; 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; } |