1 /** @file 2 * DBG2 Table 3 * 4 * Copyright (c) 2012-2016, ARM Limited. All rights reserved. 5 * 6 * This program and the accompanying materials 7 * are licensed and made available under the terms and conditions of the BSD License 8 * which accompanies this distribution. The full text of the license may be found at 9 * http://opensource.org/licenses/bsd-license.php 10 * 11 * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 13 * 14 **/ 15 16 #include "ArmPlatform.h" 17 #include <Library/AcpiLib.h> 18 #include <Library/ArmLib.h> 19 #include <Library/PcdLib.h> 20 #include <IndustryStandard/Acpi.h> 21 #include <IndustryStandard/DebugPort2Table.h> 22 23 #pragma pack(1) 24 25 #define DBG2_NUM_DEBUG_PORTS 1 26 #define DBG2_NUMBER_OF_GENERIC_ADDRESS_REGISTERS 1 27 #define DBG2_NAMESPACESTRING_FIELD_SIZE 8 28 #define PL011_UART_LENGTH 0x1000 29 30 #define NAME_STR_UART1 {'C', 'O', 'M', '1', '\0', '\0', '\0', '\0'} 31 32 typedef struct { 33 EFI_ACPI_DBG2_DEBUG_DEVICE_INFORMATION_STRUCT Dbg2Device; 34 EFI_ACPI_5_1_GENERIC_ADDRESS_STRUCTURE BaseAddressRegister; 35 UINT32 AddressSize; 36 UINT8 NameSpaceString[DBG2_NAMESPACESTRING_FIELD_SIZE]; 37 } DBG2_DEBUG_DEVICE_INFORMATION; 38 39 typedef struct { 40 EFI_ACPI_DEBUG_PORT_2_DESCRIPTION_TABLE Description; 41 DBG2_DEBUG_DEVICE_INFORMATION Dbg2DeviceInfo[DBG2_NUM_DEBUG_PORTS]; 42 } DBG2_TABLE; 43 44 45 #define DBG2_DEBUG_PORT_DDI(NumReg, SubType, UartBase, UartAddrLen, UartNameStr) { \ 46 { \ 47 EFI_ACPI_DBG2_DEBUG_DEVICE_INFORMATION_STRUCT_REVISION, /* UINT8 Revision */ \ 48 sizeof (DBG2_DEBUG_DEVICE_INFORMATION), /* UINT16 Length */ \ 49 NumReg, /* UINT8 NumberofGenericAddressRegisters */ \ 50 DBG2_NAMESPACESTRING_FIELD_SIZE, /* UINT16 NameSpaceStringLength */ \ 51 OFFSET_OF (DBG2_DEBUG_DEVICE_INFORMATION, NameSpaceString), /* UINT16 NameSpaceStringOffset */ \ 52 0, /* UINT16 OemDataLength */ \ 53 0, /* UINT16 OemDataOffset */ \ 54 EFI_ACPI_DBG2_PORT_TYPE_SERIAL, /* UINT16 Port Type */ \ 55 SubType, /* UINT16 Port Subtype */ \ 56 {EFI_ACPI_RESERVED_BYTE, EFI_ACPI_RESERVED_BYTE}, /* UINT8 Reserved[2] */ \ 57 OFFSET_OF (DBG2_DEBUG_DEVICE_INFORMATION, BaseAddressRegister), /* UINT16 BaseAddressRegister Offset */ \ 58 OFFSET_OF (DBG2_DEBUG_DEVICE_INFORMATION, AddressSize) /* UINT16 AddressSize Offset */ \ 59 }, \ 60 ARM_GAS32 (UartBase), /* EFI_ACPI_5_1_GENERIC_ADDRESS_STRUCTURE BaseAddressRegister */ \ 61 UartAddrLen, /* UINT32 AddressSize */ \ 62 UartNameStr /* UINT8 NameSpaceString[MAX_DBG2_NAME_LEN] */ \ 63 } 64 65 66 STATIC DBG2_TABLE Dbg2 = { 67 { 68 ARM_ACPI_HEADER (EFI_ACPI_5_1_DEBUG_PORT_2_TABLE_SIGNATURE, 69 DBG2_TABLE, 70 EFI_ACPI_DBG2_DEBUG_DEVICE_INFORMATION_STRUCT_REVISION), 71 OFFSET_OF (DBG2_TABLE, Dbg2DeviceInfo), 72 DBG2_NUM_DEBUG_PORTS /* UINT32 NumberDbgDeviceInfo */ 73 }, 74 { 75 /* 76 * Kernel Debug Port 77 */ 78 DBG2_DEBUG_PORT_DDI (DBG2_NUMBER_OF_GENERIC_ADDRESS_REGISTERS, 79 EFI_ACPI_DBG2_PORT_SUBTYPE_SERIAL_ARM_PL011_UART, 80 FixedPcdGet64 (PcdSerialDbgRegisterBase), 81 PL011_UART_LENGTH, 82 NAME_STR_UART1), 83 } 84 }; 85 86 #pragma pack() 87 88 // 89 // Reference the table being generated to prevent the optimizer from removing 90 // the data structure from the executable 91 // 92 VOID* CONST ReferenceAcpiTable = &Dbg2; 93
