/** @file * * Core System Resource Table (CSRT) * * Copyright (c) 2019, ARM Ltd. All rights reserved. * Copyright (c) Microsoft Corporation. All rights reserved. * * SPDX-License-Identifier: BSD-2-Clause-Patent * **/ #include #include #include "AcpiTables.h" #define RPI_DMA_MAX_REQ_LINES 32 #pragma pack (push, 1) //------------------------------------------------------------------------ // DMA Controller Vendor Data //------------------------------------------------------------------------ typedef struct { UINT32 Length; UINT32 Type; UINT64 ChannelsBaseAddress; UINT32 ChannelsBaseSize; UINT64 ControllerBaseAddress; UINT32 ControllerBaseSize; UINT32 ChannelCount; UINT32 ControllerInterrupt; UINT32 MinimumRequestLine; UINT32 MaximumRequestLine; BOOLEAN CacheCoherent; } DMA_CONTROLLER_VENDOR_DATA; //------------------------------------------------------------------------ // DMA Controller //------------------------------------------------------------------------ typedef struct { EFI_ACPI_6_3_CSRT_RESOURCE_DESCRIPTOR_HEADER DmaControllerHeader; DMA_CONTROLLER_VENDOR_DATA ControllerVendorData; } RD_DMA_CONTROLLER; //------------------------------------------------------------------------ // DMA Channel Vendor Data //------------------------------------------------------------------------ typedef struct { UINT32 ChannelNumber; UINT32 ChannelInterrupt; UINT16 IsReservedChannel; UINT16 NoSrcNoDestAddrIncr; } DMA_CHANNEL_VENDOR_DATA; //------------------------------------------------------------------------ // DMA Channel //------------------------------------------------------------------------ typedef struct { EFI_ACPI_6_3_CSRT_RESOURCE_DESCRIPTOR_HEADER DmaChannelHeader; DMA_CHANNEL_VENDOR_DATA ChannelVendorData; } RD_DMA_CHANNEL; //------------------------------------------------------------------------ // DMA Resource Group //------------------------------------------------------------------------ typedef struct { EFI_ACPI_6_3_CSRT_RESOURCE_GROUP_HEADER ResGroupHeader; RD_DMA_CONTROLLER DmaController; RD_DMA_CHANNEL DmaChannels[RPI_DMA_CHANNEL_COUNT]; } RG_DMA; //---------------------------------------------------------------------------- // CSRT table structure - current revision only includes DMA //---------------------------------------------------------------------------- typedef struct { // Standard ACPI Header EFI_ACPI_DESCRIPTION_HEADER CsrtHeader; // DMA Resource Group RG_DMA DmaResourceGroup; } EFI_ACPI_6_3_CSRT_TABLE; EFI_ACPI_6_3_CSRT_TABLE Csrt = { //------------------------------------------------------------------------ // ACPI Table Header //------------------------------------------------------------------------ { EFI_ACPI_6_3_CORE_SYSTEM_RESOURCE_TABLE_SIGNATURE, // Signature "CSRT" sizeof (EFI_ACPI_DESCRIPTION_HEADER) + sizeof (RG_DMA), // Length EFI_ACPI_6_3_CSRT_REVISION, // Revision 0x00, // Checksum calculated at runtime. EFI_ACPI_OEM_ID, // OEMID is a 6 bytes long field EFI_ACPI_OEM_TABLE_ID, // OEM table identification (8 bytes long) EFI_ACPI_OEM_REVISION, // OEM revision number. EFI_ACPI_CREATOR_ID, // ASL compiler vendor ID. EFI_ACPI_CREATOR_REVISION // ASL compiler revision number. }, //------------------------------------------------------------------------ // DMA Resource Group //------------------------------------------------------------------------ { //------------------------------------------------------------------------ // DMA Resource Group Header //------------------------------------------------------------------------ { sizeof (RG_DMA), // Resource Group Length EFI_ACPI_VENDOR_ID, // VendorId 0, // SubvendorId EFI_ACPI_CSRT_DEVICE_ID_DMA, // DeviceId 9 0, // SubdeviceId 0, // Revision 0, // Reserved 0 // SharedInfoLength }, //------------------------------------------------------------------------------- // Resource Descriptor - DMA Controller //------------------------------------------------------------------------------- { { sizeof (RD_DMA_CONTROLLER), // Length of this Resource Descriptor EFI_ACPI_CSRT_RESOURCE_TYPE_DMA, // Type for this resource 3=DMA EFI_ACPI_CSRT_RESOURCE_SUBTYPE_DMA_CONTROLLER, // Subtype for this resource 1=DMA Controller EFI_ACPI_CSRT_RESOURCE_ID_IN_DMA_GRP + 0, // ResourceId - 1st DMA controller }, { sizeof (DMA_CONTROLLER_VENDOR_DATA), // Controller vendor data here 1, BCM2836_DMA0_BASE_ADDRESS, // Base address for channels RPI_DMA_CHANNEL_COUNT * BCM2836_DMA_CHANNEL_LENGTH, // Base size = Number of channels x channel size BCM2836_DMA_CTRL_BASE_ADDRESS,// Base address for controller 8, // Base size = two registers RPI_DMA_USED_CHANNEL_COUNT, 0, // cannot use controller interrupt 0, // Minimum Request Line RPI_DMA_MAX_REQ_LINES - 1, // Maximum Request Line FALSE, }, }, //------------------------------------------------------------------------ // Resource Descriptor(s) - DMA Channels 0 to n-1 //------------------------------------------------------------------------ { // Channel 0 { { sizeof (RD_DMA_CHANNEL), // Length of this Resource Descriptor EFI_ACPI_CSRT_RESOURCE_TYPE_DMA, // Type for this resource 3=DMA EFI_ACPI_CSRT_RESOURCE_SUBTYPE_DMA_CHANNEL, // Subtype for this resource 0=DMA Channel EFI_ACPI_CSRT_RESOURCE_ID_IN_DMA_GRP + 1, // ResourceId }, { 0, // Channel vendor data here 0x30, // 16+32 dma_int[0] 0, 0 }, }, // Channel 1 reserved { { sizeof (RD_DMA_CHANNEL), EFI_ACPI_CSRT_RESOURCE_TYPE_DMA, EFI_ACPI_CSRT_RESOURCE_SUBTYPE_DMA_CHANNEL, EFI_ACPI_CSRT_RESOURCE_ID_IN_DMA_GRP + 2, // ResourceId }, { 1, // Channel vendor data here 0x31, // 17+32 dma_int[1] 1, 0 }, }, // Channel 2 - VC4 use only { { sizeof (RD_DMA_CHANNEL), EFI_ACPI_CSRT_RESOURCE_TYPE_DMA, EFI_ACPI_CSRT_RESOURCE_SUBTYPE_DMA_CHANNEL, EFI_ACPI_CSRT_RESOURCE_ID_IN_DMA_GRP + 3, // ResourceId }, { 2, // Channel vendor data here 0x32, // 18+32 dma_int[2] 1, 0 }, }, // Channel 3 - VC4 use only { { sizeof (RD_DMA_CHANNEL), EFI_ACPI_CSRT_RESOURCE_TYPE_DMA, EFI_ACPI_CSRT_RESOURCE_SUBTYPE_DMA_CHANNEL, EFI_ACPI_CSRT_RESOURCE_ID_IN_DMA_GRP + 4, }, { 3, // Channel vendor data here 0x33, // 19+32 dma_int[3] 1, 0 }, }, // channel 4 { { sizeof (RD_DMA_CHANNEL), EFI_ACPI_CSRT_RESOURCE_TYPE_DMA, EFI_ACPI_CSRT_RESOURCE_SUBTYPE_DMA_CHANNEL, EFI_ACPI_CSRT_RESOURCE_ID_IN_DMA_GRP + 5, }, { 4, // Channel vendor data here 0x34, // 20+32 dma_int[4] 0, 1 // SD host controller candidate }, }, // Channel 5 { { sizeof (RD_DMA_CHANNEL), EFI_ACPI_CSRT_RESOURCE_TYPE_DMA, EFI_ACPI_CSRT_RESOURCE_SUBTYPE_DMA_CHANNEL, EFI_ACPI_CSRT_RESOURCE_ID_IN_DMA_GRP + 6, }, { 5, // Channel vendor data here 0x35, // 21+32 dma_int[5] 0, 0 }, }, // Channel 6 is reserved { { sizeof (RD_DMA_CHANNEL), EFI_ACPI_CSRT_RESOURCE_TYPE_DMA, EFI_ACPI_CSRT_RESOURCE_SUBTYPE_DMA_CHANNEL, EFI_ACPI_CSRT_RESOURCE_ID_IN_DMA_GRP + 7, }, { 6, // Channel vendor data here 0x36, // 22+32 dma_int[6] 1, 0 }, }, // Channel 7 is reserved { { sizeof (RD_DMA_CHANNEL), EFI_ACPI_CSRT_RESOURCE_TYPE_DMA, EFI_ACPI_CSRT_RESOURCE_SUBTYPE_DMA_CHANNEL, EFI_ACPI_CSRT_RESOURCE_ID_IN_DMA_GRP + 8, }, { 7, // Channel vendor data here 0x37, // 23+32 dma_int[7] 1, 0 }, }, // Channel 8 { { sizeof (RD_DMA_CHANNEL), EFI_ACPI_CSRT_RESOURCE_TYPE_DMA, EFI_ACPI_CSRT_RESOURCE_SUBTYPE_DMA_CHANNEL, EFI_ACPI_CSRT_RESOURCE_ID_IN_DMA_GRP + 9, }, { 8, // Channel vendor data here 0x38, // 24+32 dma_int[8] 0, 0 }, }, // Channel 9 { { sizeof (RD_DMA_CHANNEL), EFI_ACPI_CSRT_RESOURCE_TYPE_DMA, EFI_ACPI_CSRT_RESOURCE_SUBTYPE_DMA_CHANNEL, EFI_ACPI_CSRT_RESOURCE_ID_IN_DMA_GRP + 10, }, { 9, // channel vendor data here 0x39, // 25+32 dma_int[9] 0, 0 }, } } // End DMA Channels 0 to 14 } // End DMA Resource group }; #pragma pack(pop) // // Reference the table being generated to prevent the optimizer from removing the // data structure from the executable // VOID* CONST ReferenceAcpiTable = &Csrt;