As not only update mac address feature in EthMac files, so rename
them to UpdateDsdt.
Signed-off-by: Ming Huang <huangmin...@huawei.com>
---
Silicon/Hisilicon/Drivers/AcpiPlatformDxe/AcpiPlatform.c | 2 +-
Silicon/Hisilicon/Drivers/AcpiPlatformDxe/AcpiPlatformDxe.inf | 2 +-
Silicon/Hisilicon/Drivers/AcpiPlatformDxe/EthMac.c | 661
--------------------
Silicon/Hisilicon/Drivers/AcpiPlatformDxe/EthMac.h | 16 -
Silicon/Hisilicon/Drivers/AcpiPlatformDxe/UpdateDsdt.c | 661
++++++++++++++++++++
Silicon/Hisilicon/Drivers/AcpiPlatformDxe/UpdateDsdt.h | 16 +
6 files changed, 679 insertions(+), 679 deletions(-)
diff --git a/Silicon/Hisilicon/Drivers/AcpiPlatformDxe/AcpiPlatform.c
b/Silicon/Hisilicon/Drivers/AcpiPlatformDxe/AcpiPlatform.c
index 9cdf710..34a1dc9 100644
--- a/Silicon/Hisilicon/Drivers/AcpiPlatformDxe/AcpiPlatform.c
+++ b/Silicon/Hisilicon/Drivers/AcpiPlatformDxe/AcpiPlatform.c
@@ -21,7 +21,7 @@
#include <Library/UefiRuntimeServicesTableLib.h>
#include <IndustryStandard/Acpi.h>
#include <IndustryStandard/AcpiAml.h>
-#include "EthMac.h"
+#include "UpdateDsdt.h"
EFI_EVENT mUpdateAcpiDsdtTableEvent;
diff --git a/Silicon/Hisilicon/Drivers/AcpiPlatformDxe/AcpiPlatformDxe.inf
b/Silicon/Hisilicon/Drivers/AcpiPlatformDxe/AcpiPlatformDxe.inf
index 856309a..efb7ff3 100644
--- a/Silicon/Hisilicon/Drivers/AcpiPlatformDxe/AcpiPlatformDxe.inf
+++ b/Silicon/Hisilicon/Drivers/AcpiPlatformDxe/AcpiPlatformDxe.inf
@@ -18,7 +18,7 @@
[Sources]
AcpiPlatform.c
- EthMac.c
+ UpdateDsdt.c
[Packages]
MdePkg/MdePkg.dec
diff --git a/Silicon/Hisilicon/Drivers/AcpiPlatformDxe/EthMac.c
b/Silicon/Hisilicon/Drivers/AcpiPlatformDxe/EthMac.c
deleted file mode 100644
index 6afdddf..0000000
--- a/Silicon/Hisilicon/Drivers/AcpiPlatformDxe/EthMac.c
+++ /dev/null
@@ -1,661 +0,0 @@
-/** @file
-
- Copyright (c) 2014, Applied Micro Curcuit Corporation. All rights
reserved.<BR>
- Copyright (c) 2015 - 2020, Hisilicon Limited. All rights reserved.<BR>
- Copyright (c) 2015, Linaro Limited. All rights reserved.<BR>
- SPDX-License-Identifier: BSD-2-Clause-Patent
-
- This driver is called to initialize the FW part of the PHY in preparation
- for the OS.
-
-**/
-
-#include <Guid/ShellVariableGuid.h>
-#include <Library/UefiRuntimeServicesTableLib.h>
-#include <Library/DebugLib.h>
-#include <Library/TimerLib.h>
-
-#include <PiDxe.h>
-#include <Guid/EventGroup.h>
-#include <Protocol/AcpiTable.h>
-#include <Protocol/FirmwareVolume2.h>
-#include <Library/BaseLib.h>
-#include <Library/UefiBootServicesTableLib.h>
-#include <Protocol/AcpiSystemDescriptionTable.h>
-#include <Library/DebugLib.h>
-#include <Library/MemoryAllocationLib.h>
-#include <Library/PcdLib.h>
-#include <Library/PrintLib.h>
-#include <Library/DebugLib.h>
-#include <Library/BaseMemoryLib.h>
-#include <Library/UefiRuntimeServicesTableLib.h>
-#include <IndustryStandard/Acpi.h>
-#include <IndustryStandard/AcpiAml.h>
-
-#include <Protocol/HisiBoardNicProtocol.h>
-#include <Protocol/HisiSasConfig.h>
-
-// Turn on debug message by enabling below define
-//#define ACPI_DEBUG
-
-#ifdef ACPI_DEBUG
-#define DBG(arg...) DEBUG((EFI_D_ERROR,## arg))
-#else
-#define DBG(arg...)
-#endif
-
-#define EFI_ACPI_MAX_NUM_TABLES 20
-#define DSDT_SIGNATURE 0x54445344
-
-#define ACPI_ETH_MAC_KEY "local-mac-address"
-#define ACPI_ETH_SAS_KEY "sas-addr"
-
-#define PREFIX_VARIABLE_NAME L"MAC"
-#define PREFIX_VARIABLE_NAME_COMPAT L"RGMII_MAC"
-#define ADDRESS_MAX_LEN 30
-
-CHAR8 *mHisiAcpiDevId[] = {"HISI00C1","HISI00C2","HISI0162"};
-
-typedef enum {
- DsdtDeviceUnknown,
- DsdtDeviceLan,
- DsdtDeviceSas
-} DSDT_DEVICE_TYPE;
-
-STATIC
-EFI_STATUS
-GetEnvMac(
- IN UINTN MacNextID,
- IN OUT UINT8 *MacBuffer
- )
-{
- EFI_MAC_ADDRESS Mac;
- EFI_STATUS Status;
- HISI_BOARD_NIC_PROTOCOL *OemNic = NULL;
-
- Status = gBS->LocateProtocol(&gHisiBoardNicProtocolGuid, NULL, (VOID
**)&OemNic);
- if(EFI_ERROR(Status))
- {
- DEBUG((EFI_D_ERROR, "[%a]:[%dL] LocateProtocol failed %r\n", __FUNCTION__,
__LINE__, Status));
- return Status;
- }
-
- Status = OemNic->GetMac(&Mac, MacNextID);
- if(EFI_ERROR(Status))
- {
- DEBUG((EFI_D_ERROR, "[%a]:[%dL] GetMac failed %r\n", __FUNCTION__,
__LINE__, Status));
- return Status;
- }
-
- CopyMem (MacBuffer, &Mac, 6);
- DEBUG((EFI_D_ERROR, "Port %d MAC %02x:%02x:%02x:%02x:%02x:%02x\n",
- MacNextID,
- MacBuffer[0],
- MacBuffer[1],
- MacBuffer[2],
- MacBuffer[3],
- MacBuffer[4],
- MacBuffer[5]
- ));
-
- return EFI_SUCCESS;
-}
-
-STATIC
-EFI_STATUS
-GetSasAddress (
- IN UINT8 Index,
- IN OUT UINT8 *SasAddrBuffer
- )
-{
- EFI_STATUS Status;
- HISI_SAS_CONFIG_PROTOCOL *HisiSasConf;
-
- if (SasAddrBuffer == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- Status = gBS->LocateProtocol (&gHisiSasConfigProtocolGuid, NULL, (VOID
**)&HisiSasConf);
- if (EFI_ERROR (Status)) {
- DEBUG ((DEBUG_ERROR, "Locate Sas Config Protocol failed %r\n", Status));
- SasAddrBuffer[0] = 0x50;
- SasAddrBuffer[1] = 0x01;
- SasAddrBuffer[2] = 0x88;
- SasAddrBuffer[3] = 0x20;
- SasAddrBuffer[4] = 0x16;
- SasAddrBuffer[5] = 0x00;
- SasAddrBuffer[6] = 0x00;
- SasAddrBuffer[7] = Index;
- return Status;
- }
-
- return HisiSasConf->GetAddr (Index, SasAddrBuffer);
-}
-
-STATIC
-EFI_STATUS
-UpdateAddressInOption (
- IN EFI_ACPI_SDT_PROTOCOL *AcpiTableProtocol,
- IN EFI_ACPI_HANDLE ChildHandle,
- IN UINTN DevNextID,
- IN DSDT_DEVICE_TYPE FoundDev
- )
-{
- EFI_STATUS Status;
- EFI_ACPI_DATA_TYPE DataType;
- CONST UINT8 *Data;
- CONST VOID *Buffer;
- UINTN DataSize;
- UINTN Count;
- EFI_ACPI_HANDLE CurrentHandle;
- UINT8 *AddressBuffer;
- UINT8 AddressByte;
-
- AddressByte = 0;
- AddressBuffer = AllocateZeroPool (ADDRESS_MAX_LEN);
- if (AddressBuffer == NULL) {
- DEBUG ((DEBUG_ERROR, "%a:%d AllocateZeroPool failed\n", __FILE__,
__LINE__));
- return EFI_OUT_OF_RESOURCES;
- }
-
- switch (FoundDev) {
- case DsdtDeviceLan:
- //Update the MAC
- Status = GetEnvMac (DevNextID, AddressBuffer);
- AddressByte = 6;
- break;
- case DsdtDeviceSas:
- //Update SAS Address.
- Status = GetSasAddress (DevNextID, AddressBuffer);
- AddressByte = 8;
- break;
- default:
- Status = EFI_INVALID_PARAMETER;
- }
- if (EFI_ERROR (Status)) {
- FreePool (AddressBuffer);
- return Status;
- }
-
- for (Count = 0; Count < AddressByte; Count++) {
- Status = AcpiTableProtocol->GetOption (CurrentHandle, 1, &DataType,
&Buffer, &DataSize);
- if (EFI_ERROR (Status)) {
- break;
- }
-
- Data = Buffer;
- DBG(" _DSD Child Subnode Store Op Code 0x%02X 0x%02X %02X DataType
0x%X\n",
- DataSize, Data[0], DataSize > 1 ? Data[1] : 0, DataType);
-
- if (DataType != EFI_ACPI_DATA_TYPE_UINT)
- break;
-
- // only need one byte.
- // FIXME: Assume the CPU is little endian
- Status = AcpiTableProtocol->SetOption (
- CurrentHandle,
- 1,
- AddressBuffer + Count,
- sizeof(UINT8));
- if (EFI_ERROR (Status)) {
- break;
- }
-
- Status = AcpiTableProtocol->GetChild (ChildHandle, &CurrentHandle);
- if (EFI_ERROR (Status) || CurrentHandle == NULL) {
- break;
- }
- }
-
- FreePool (AddressBuffer);
- return Status;
-}
-
-STATIC
-EFI_STATUS
-UpdateAddressInPackage (
- IN EFI_ACPI_SDT_PROTOCOL *AcpiTableProtocol,
- IN EFI_ACPI_HANDLE ChildHandle,
- IN UINTN Level,
- IN OUT BOOLEAN *Found,
- IN UINTN DevNextID,
- IN DSDT_DEVICE_TYPE FoundDev
- )
-{
- // ASL template for ethernet driver:
-/*
- * Name (_DSD, Package () {
- * ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
- * Package () {
- * Package (2) {"mac-address", Package (6) { 00, 11, 22, 33, 44, 55 }}
- * Package (2) {"phy-channel", 0},
- * Package (2) {"phy-mode", "rgmii"},
- * Package (2) {"max-transfer-unit", 0x5dc}, // MTU of 1500
- * Package (2) {"max-speed", 0x3e8}, // 1000 Mbps
- * }
- * })
- */
- EFI_STATUS Status;
- EFI_ACPI_DATA_TYPE DataType;
- CONST UINT8 *Data;
- CONST VOID *Buffer;
- UINTN DataSize;
- EFI_ACPI_HANDLE CurrentHandle;
- EFI_ACPI_HANDLE NextHandle;
- EFI_ACPI_HANDLE Level1Handle;
-
- DBG("In Level:%d\n", Level);
- Level1Handle = NULL;
- Status = EFI_SUCCESS;
- for (CurrentHandle = NULL; ;) {
- Status = AcpiTableProtocol->GetChild(ChildHandle, &CurrentHandle);
- if (Level == 1) {
- Level1Handle = CurrentHandle;
- }
- if (Level != 3 && (EFI_ERROR(Status) || CurrentHandle == NULL))
- break;
-
- Status = AcpiTableProtocol->GetOption(CurrentHandle, 0, &DataType,
&Buffer, &DataSize);
- Data = Buffer;
- DBG("_DSD Child Subnode Store Op Code 0x%02X 0x%02X %02X\n",
- DataSize, Data[0], DataSize > 1 ? Data[1] : 0);
-
- if (Level < 2 && Data[0] != AML_PACKAGE_OP)
- continue;
-
- if (Level == 2 && Data[0] == AML_STRING_PREFIX) {
- Status = AcpiTableProtocol->GetOption(CurrentHandle, 1, &DataType,
&Buffer, &DataSize);
- if (EFI_ERROR(Status))
- break;
-
- DBG(" _DSD Child Subnode Store Op Code 0x%02X 0x%02X %02X\n",
- DataSize, Data[0], DataSize > 1 ? Data[1] : 0);
-
- Data = Buffer;
- if ((DataType != EFI_ACPI_DATA_TYPE_STRING) ||
- ((AsciiStrCmp ((CHAR8 *) Data, ACPI_ETH_MAC_KEY) != 0) &&
- (AsciiStrCmp ((CHAR8 *) Data, ACPI_ETH_SAS_KEY) != 0))) {
- ChildHandle = Level1Handle;
- continue;
- }
-
- DBG("_DSD Key Type %d. Found address key\n", DataType);
-
- //
- // We found the node.
- //
- *Found = TRUE;
- continue;
- }
-
- if (Level == 3 && *Found) {
- Status = UpdateAddressInOption (AcpiTableProtocol, ChildHandle,
DevNextID, FoundDev);
- break;
- }
-
- if (Level > 3)
- break;
-
- //Search next package
- AcpiTableProtocol->Open((VOID *) Buffer, &NextHandle);
- Status = UpdateAddressInPackage (
- AcpiTableProtocol,
- NextHandle,
- Level + 1,
- Found,
- DevNextID,
- FoundDev);
- AcpiTableProtocol->Close(NextHandle);
- if (!EFI_ERROR(Status))
- break;
- }
-
- return Status;
-}
-
-STATIC
-EFI_STATUS
-SearchReplacePackageAddress (
- IN EFI_ACPI_SDT_PROTOCOL *AcpiTableProtocol,
- IN EFI_ACPI_HANDLE ChildHandle,
- IN UINTN DevNextID,
- IN DSDT_DEVICE_TYPE FoundDev
- )
-{
- BOOLEAN Found = FALSE;
- UINTN Level = 0;
-
- return UpdateAddressInPackage (AcpiTableProtocol, ChildHandle, Level,
- &Found, DevNextID, FoundDev);
-}
-
-EFI_STATUS
-GetDeviceInfo (
- EFI_ACPI_SDT_PROTOCOL *AcpiTableProtocol,
- EFI_ACPI_HANDLE ChildHandle,
- UINTN *DevID,
- DSDT_DEVICE_TYPE *FoundDev
- )
-{
- EFI_STATUS Status;
- EFI_ACPI_DATA_TYPE DataType;
- CHAR8 Data[5];
- CONST VOID *Buffer;
- UINTN DataSize;
-
- // Get NameString
- Status = AcpiTableProtocol->GetOption (ChildHandle, 1, &DataType, &Buffer,
&DataSize);
- if (EFI_ERROR (Status)) {
- DEBUG ((EFI_D_ERROR, "[%a:%d] Get NameString failed: %r\n", __FUNCTION__,
__LINE__, Status));
- return Status;
- }
-
- CopyMem (Data, Buffer, 4);
- DBG("Size %p Data %02x %02x %02x %02x\n", DataSize, Data[0], Data[1],
Data[2], Data[3]);
-
- Data[4] = '\0';
- if ((DataSize != 4) ||
- (Data[3] > '9' || Data[3] < '0')) {
- DEBUG ((DEBUG_ERROR, "The NameString %a is not ETHn or SASn\n", Data));
- return EFI_INVALID_PARAMETER;
- }
-
- if (AsciiStrnCmp ("ETH", Data, 3) == 0) {
- *FoundDev = DsdtDeviceLan;
- } else if (AsciiStrnCmp ("SAS", Data, 3) == 0) {
- *FoundDev = DsdtDeviceSas;
- } else {
- DEBUG ((DEBUG_ERROR, "[%a:%d] The NameString %a is not ETHn or SASn\n",
- __FUNCTION__, __LINE__, Data));
- return EFI_INVALID_PARAMETER;
- }
-
- *DevID = Data[3] - '0';
- return EFI_SUCCESS;
-}
-
-EFI_STATUS ProcessDSDTDevice (
- EFI_ACPI_SDT_PROTOCOL *AcpiTableProtocol,
- EFI_ACPI_HANDLE ChildHandle)
-{
- EFI_STATUS Status;
- EFI_ACPI_DATA_TYPE DataType;
- CONST UINT8 *Data;
- CONST VOID *Buffer;
- UINTN DataSize;
- EFI_ACPI_HANDLE DevHandle;
- DSDT_DEVICE_TYPE FoundDev = DsdtDeviceUnknown;
- UINTN DevNextID;
- BOOLEAN HisiAcpiDevNotFound;
- UINTN Index;
-
- Status = AcpiTableProtocol->GetOption(ChildHandle, 0, &DataType, &Buffer,
&DataSize);
- if (EFI_ERROR(Status))
- return EFI_SUCCESS;
-
- Data = Buffer;
- //
- // Skip all non-device type
- //
- if (DataSize != 2 || Data[0] != AML_EXT_OP || Data[1] != AML_EXT_DEVICE_OP)
- return EFI_SUCCESS;
-
- //
- // Walk the device type node
- //
- for (DevHandle = NULL; ; ) {
- Status = AcpiTableProtocol->GetChild(ChildHandle, &DevHandle);
- if (EFI_ERROR(Status) || DevHandle == NULL)
- break;
-
- //
- // Search for _HID with Device ID
- //
- Status = AcpiTableProtocol->GetOption(DevHandle, 0, &DataType, &Buffer,
&DataSize);
- if (EFI_ERROR(Status))
- break;
-
- Data = Buffer;
- DBG("Data Type 0x%02X %02X\n", Data[0], DataSize > 1 ? Data[1] : 0);
- if (DataSize == 1 && Data[0] == AML_NAME_OP) {
- Status = AcpiTableProtocol->GetOption(DevHandle, 1, &DataType, &Buffer,
&DataSize);
- if (EFI_ERROR(Status))
- break;
-
- Data = Buffer;
- if (DataType == EFI_ACPI_DATA_TYPE_NAME_STRING) {
- if (AsciiStrnCmp((CHAR8 *) Data, "_HID", 4) == 0) {
- EFI_ACPI_HANDLE ValueHandle;
-
- Status = AcpiTableProtocol->GetOption(DevHandle, 2, &DataType,
&Buffer, &DataSize);
- if (EFI_ERROR(Status))
- break;
-
- if (DataType != EFI_ACPI_DATA_TYPE_CHILD)
- continue;
-
- AcpiTableProtocol->Open((VOID *) Buffer, &ValueHandle);
- Status = AcpiTableProtocol->GetOption(ValueHandle, 1, &DataType,
&Buffer, &DataSize);
-
- Data = Buffer;
- DBG("[%a:%d] - _HID = %a\n", __FUNCTION__, __LINE__, Data);
-
- if (EFI_ERROR(Status) ||
- DataType != EFI_ACPI_DATA_TYPE_STRING) {
- AcpiTableProtocol->Close (ValueHandle);
- FoundDev = DsdtDeviceUnknown;
- continue;
- }
-
- HisiAcpiDevNotFound = TRUE;
- for (Index = 0; Index < ARRAY_SIZE (mHisiAcpiDevId); Index++) {
- if (AsciiStrCmp ((CHAR8 *)Data, mHisiAcpiDevId[Index]) == 0) {
- HisiAcpiDevNotFound = FALSE;
- break;
- }
- }
- if (HisiAcpiDevNotFound) {
- AcpiTableProtocol->Close (ValueHandle);
- FoundDev = DsdtDeviceUnknown;
- continue;
- }
-
- DBG("Found device\n");
- AcpiTableProtocol->Close(ValueHandle);
- Status = GetDeviceInfo (AcpiTableProtocol, ChildHandle, &DevNextID,
&FoundDev);
- if (EFI_ERROR (Status)) {
- continue;
- }
- } else if ((FoundDev != DsdtDeviceUnknown) && AsciiStrnCmp((CHAR8 *)
Data, "_DSD", 4) == 0) {
- //
- // Patch DSD data
- //
- EFI_ACPI_HANDLE PkgHandle;
- Status = AcpiTableProtocol->GetOption(DevHandle, 2, &DataType,
&Buffer, &DataSize);
- if (EFI_ERROR(Status))
- break;
-
- if (DataType != EFI_ACPI_DATA_TYPE_CHILD)
- continue;
-
- //
- // Open package data
- //
- AcpiTableProtocol->Open((VOID *) Buffer, &PkgHandle);
- Status = AcpiTableProtocol->GetOption(PkgHandle, 0, &DataType,
&Buffer, &DataSize);
-
- Data = Buffer;
- DBG("_DSD Subnode Store Op Code 0x%02X %02X\n",
- Data[0], DataSize > 1 ? Data[1] : 0);
-
- //
- // Walk the _DSD node
- //
- if (DataSize == 1 && Data[0] == AML_PACKAGE_OP) {
- Status = SearchReplacePackageAddress (AcpiTableProtocol,
PkgHandle, DevNextID, FoundDev);
- }
-
- AcpiTableProtocol->Close(PkgHandle);
- } else if (AsciiStrnCmp ((CHAR8 *) Data, "_ADR", 4) == 0) {
- Status = AcpiTableProtocol->GetOption (DevHandle, 2, &DataType,
&Buffer, &DataSize);
- if (EFI_ERROR (Status)) {
- break;
- }
-
- if (DataType != EFI_ACPI_DATA_TYPE_CHILD) {
- continue;
- }
-
- Status = GetDeviceInfo (AcpiTableProtocol, ChildHandle, &DevNextID,
&FoundDev);
-
- if (EFI_ERROR (Status)) {
- continue;
- }
- }
- }
- } else if ((DataSize == 2) && (Data[0] == AML_EXT_OP) && (Data[1] ==
AML_EXT_DEVICE_OP)) {
- ProcessDSDTDevice (AcpiTableProtocol, DevHandle);
- }
- }
-
- return EFI_SUCCESS;
-}
-
-
-BOOLEAN
-IsSbScope (
- EFI_ACPI_SDT_PROTOCOL *AcpiTableProtocol,
- EFI_ACPI_HANDLE ChildHandle
- )
-{
- EFI_STATUS Status;
- EFI_ACPI_DATA_TYPE DataType;
- CONST UINT8 *Data;
- CONST VOID *Buffer;
- UINTN DataSize;
-
- Status = AcpiTableProtocol->GetOption (ChildHandle, 0, &DataType, &Buffer,
&DataSize);
- if (EFI_ERROR(Status)) return FALSE;
-
- Data = Buffer;
- if (DataSize != 1 || Data[0] != AML_SCOPE_OP) {
- return FALSE;
- }
-
- return TRUE;
-}
-
-EFI_STATUS ProcessDSDTChild(
- EFI_ACPI_SDT_PROTOCOL *AcpiTableProtocol,
- EFI_ACPI_HANDLE ChildHandle)
-{
- EFI_STATUS Status;
- EFI_ACPI_HANDLE DevHandle;
-
- // Check Scope(_SB) at first
- if (!IsSbScope (AcpiTableProtocol, ChildHandle)) {
- return ProcessDSDTDevice (AcpiTableProtocol, ChildHandle);
- }
-
- for (DevHandle = NULL; ; ) {
- Status = AcpiTableProtocol->GetChild (ChildHandle, &DevHandle);
- if (EFI_ERROR(Status) || DevHandle == NULL) {
- break;
- }
-
- ProcessDSDTDevice (AcpiTableProtocol, DevHandle);
- }
-
- return EFI_SUCCESS;
-}
-
-static EFI_STATUS ProcessDSDT(
- EFI_ACPI_SDT_PROTOCOL *AcpiTableProtocol,
- EFI_ACPI_HANDLE TableHandle)
-{
- EFI_STATUS Status;
- EFI_ACPI_HANDLE ChildHandle;
- //
- // Parse table for device type
- DBG ("[%a:%d] - TableHandle=%p\n", __FUNCTION__, __LINE__, TableHandle);
- for (ChildHandle = NULL; ; ) {
- Status = AcpiTableProtocol->GetChild(TableHandle, &ChildHandle);
- DBG ("[%a:%d] - Child=%p, %r\n", __FUNCTION__, __LINE__, ChildHandle,
Status);
- if (EFI_ERROR(Status))
- break;
- if (ChildHandle == NULL)
- break;
-
- ProcessDSDTChild(AcpiTableProtocol, ChildHandle);
- }
-
- return EFI_SUCCESS;
-}
-
-STATIC
-VOID
-AcpiCheckSum (
- IN OUT EFI_ACPI_SDT_HEADER *Table
- )
-{
- UINTN ChecksumOffset;
- UINT8 *Buffer;
-
- ChecksumOffset = OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER, Checksum);
- Buffer = (UINT8 *)Table;
-
- //
- // set checksum to 0 first
- //
- Buffer[ChecksumOffset] = 0;
-
- //
- // Update checksum value
- //
- Buffer[ChecksumOffset] = CalculateCheckSum8 (Buffer, Table->Length);
-}
-
-EFI_STATUS
-UpdateAcpiDsdtTable (
- VOID
- )
-{
- EFI_STATUS Status;
- EFI_ACPI_SDT_PROTOCOL *AcpiTableProtocol;
- EFI_ACPI_SDT_HEADER *Table;
- EFI_ACPI_TABLE_VERSION TableVersion;
- UINTN TableKey;
- EFI_ACPI_HANDLE TableHandle;
- UINTN i;
-
- DEBUG ((EFI_D_ERROR, "Updating Ethernet MAC in ACPI DSDT...\n"));
-
- //
- // Find the AcpiTable protocol
- Status = gBS->LocateProtocol(&gEfiAcpiSdtProtocolGuid, NULL, (VOID**)
&AcpiTableProtocol);
- if (EFI_ERROR(Status)) {
- DBG("Unable to locate ACPI table protocol\n");
- return EFI_SUCCESS;
- }
-
- //
- // Search for DSDT Table
- for (i = 0; i < EFI_ACPI_MAX_NUM_TABLES; i++) {
- Status = AcpiTableProtocol->GetAcpiTable(i, &Table, &TableVersion,
&TableKey);
- if (EFI_ERROR(Status))
- break;
- if (Table->Signature != DSDT_SIGNATURE)
- continue;
-
- Status = AcpiTableProtocol->OpenSdt(TableKey, &TableHandle);
- if (EFI_ERROR(Status))
- break;
-
- ProcessDSDT(AcpiTableProtocol, TableHandle);
-
- AcpiTableProtocol->Close(TableHandle);
- AcpiCheckSum (Table);
- }
-
- return EFI_SUCCESS;
-}
diff --git a/Silicon/Hisilicon/Drivers/AcpiPlatformDxe/EthMac.h
b/Silicon/Hisilicon/Drivers/AcpiPlatformDxe/EthMac.h
deleted file mode 100644
index a7e1eed..0000000
--- a/Silicon/Hisilicon/Drivers/AcpiPlatformDxe/EthMac.h
+++ /dev/null
@@ -1,16 +0,0 @@
-/*
- *
- * Copyright (c) 2014, Applied Micro Circuits Corporation
- * Copyright (c) 2015, Hisilicon Limited. All rights reserved.
- * Copyright (c) 2015, Linaro Limited. All rights reserved.
- * Author: Loc Ho <l...@apm.com>
- *
- * SPDX-License-Identifier: BSD-2-Clause-Patent
- */
-#ifndef _ETH_MAC_H_
-#define _ETH_MAC_H_
-
-EFI_STATUS UpdateAcpiDsdtTable (VOID);
-
-#endif
-
diff --git a/Silicon/Hisilicon/Drivers/AcpiPlatformDxe/UpdateDsdt.c
b/Silicon/Hisilicon/Drivers/AcpiPlatformDxe/UpdateDsdt.c
new file mode 100644
index 0000000..6afdddf
--- /dev/null
+++ b/Silicon/Hisilicon/Drivers/AcpiPlatformDxe/UpdateDsdt.c
@@ -0,0 +1,661 @@
+/** @file
+
+ Copyright (c) 2014, Applied Micro Curcuit Corporation. All rights
reserved.<BR>
+ Copyright (c) 2015 - 2020, Hisilicon Limited. All rights reserved.<BR>
+ Copyright (c) 2015, Linaro Limited. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+ This driver is called to initialize the FW part of the PHY in preparation
+ for the OS.
+
+**/
+
+#include <Guid/ShellVariableGuid.h>
+#include <Library/UefiRuntimeServicesTableLib.h>
+#include <Library/DebugLib.h>
+#include <Library/TimerLib.h>
+
+#include <PiDxe.h>
+#include <Guid/EventGroup.h>
+#include <Protocol/AcpiTable.h>
+#include <Protocol/FirmwareVolume2.h>
+#include <Library/BaseLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Protocol/AcpiSystemDescriptionTable.h>
+#include <Library/DebugLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/PcdLib.h>
+#include <Library/PrintLib.h>
+#include <Library/DebugLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/UefiRuntimeServicesTableLib.h>
+#include <IndustryStandard/Acpi.h>
+#include <IndustryStandard/AcpiAml.h>
+
+#include <Protocol/HisiBoardNicProtocol.h>
+#include <Protocol/HisiSasConfig.h>
+
+// Turn on debug message by enabling below define
+//#define ACPI_DEBUG
+
+#ifdef ACPI_DEBUG
+#define DBG(arg...) DEBUG((EFI_D_ERROR,## arg))
+#else
+#define DBG(arg...)
+#endif
+
+#define EFI_ACPI_MAX_NUM_TABLES 20
+#define DSDT_SIGNATURE 0x54445344
+
+#define ACPI_ETH_MAC_KEY "local-mac-address"
+#define ACPI_ETH_SAS_KEY "sas-addr"
+
+#define PREFIX_VARIABLE_NAME L"MAC"
+#define PREFIX_VARIABLE_NAME_COMPAT L"RGMII_MAC"
+#define ADDRESS_MAX_LEN 30
+
+CHAR8 *mHisiAcpiDevId[] = {"HISI00C1","HISI00C2","HISI0162"};
+
+typedef enum {
+ DsdtDeviceUnknown,
+ DsdtDeviceLan,
+ DsdtDeviceSas
+} DSDT_DEVICE_TYPE;
+
+STATIC
+EFI_STATUS
+GetEnvMac(
+ IN UINTN MacNextID,
+ IN OUT UINT8 *MacBuffer
+ )
+{
+ EFI_MAC_ADDRESS Mac;
+ EFI_STATUS Status;
+ HISI_BOARD_NIC_PROTOCOL *OemNic = NULL;
+
+ Status = gBS->LocateProtocol(&gHisiBoardNicProtocolGuid, NULL, (VOID
**)&OemNic);
+ if(EFI_ERROR(Status))
+ {
+ DEBUG((EFI_D_ERROR, "[%a]:[%dL] LocateProtocol failed %r\n", __FUNCTION__,
__LINE__, Status));
+ return Status;
+ }
+
+ Status = OemNic->GetMac(&Mac, MacNextID);
+ if(EFI_ERROR(Status))
+ {
+ DEBUG((EFI_D_ERROR, "[%a]:[%dL] GetMac failed %r\n", __FUNCTION__,
__LINE__, Status));
+ return Status;
+ }
+
+ CopyMem (MacBuffer, &Mac, 6);
+ DEBUG((EFI_D_ERROR, "Port %d MAC %02x:%02x:%02x:%02x:%02x:%02x\n",
+ MacNextID,
+ MacBuffer[0],
+ MacBuffer[1],
+ MacBuffer[2],
+ MacBuffer[3],
+ MacBuffer[4],
+ MacBuffer[5]
+ ));
+
+ return EFI_SUCCESS;
+}
+
+STATIC
+EFI_STATUS
+GetSasAddress (
+ IN UINT8 Index,
+ IN OUT UINT8 *SasAddrBuffer
+ )
+{
+ EFI_STATUS Status;
+ HISI_SAS_CONFIG_PROTOCOL *HisiSasConf;
+
+ if (SasAddrBuffer == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Status = gBS->LocateProtocol (&gHisiSasConfigProtocolGuid, NULL, (VOID
**)&HisiSasConf);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "Locate Sas Config Protocol failed %r\n", Status));
+ SasAddrBuffer[0] = 0x50;
+ SasAddrBuffer[1] = 0x01;
+ SasAddrBuffer[2] = 0x88;
+ SasAddrBuffer[3] = 0x20;
+ SasAddrBuffer[4] = 0x16;
+ SasAddrBuffer[5] = 0x00;
+ SasAddrBuffer[6] = 0x00;
+ SasAddrBuffer[7] = Index;
+ return Status;
+ }
+
+ return HisiSasConf->GetAddr (Index, SasAddrBuffer);
+}
+
+STATIC
+EFI_STATUS
+UpdateAddressInOption (
+ IN EFI_ACPI_SDT_PROTOCOL *AcpiTableProtocol,
+ IN EFI_ACPI_HANDLE ChildHandle,
+ IN UINTN DevNextID,
+ IN DSDT_DEVICE_TYPE FoundDev
+ )
+{
+ EFI_STATUS Status;
+ EFI_ACPI_DATA_TYPE DataType;
+ CONST UINT8 *Data;
+ CONST VOID *Buffer;
+ UINTN DataSize;
+ UINTN Count;
+ EFI_ACPI_HANDLE CurrentHandle;
+ UINT8 *AddressBuffer;
+ UINT8 AddressByte;
+
+ AddressByte = 0;
+ AddressBuffer = AllocateZeroPool (ADDRESS_MAX_LEN);
+ if (AddressBuffer == NULL) {
+ DEBUG ((DEBUG_ERROR, "%a:%d AllocateZeroPool failed\n", __FILE__,
__LINE__));
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ switch (FoundDev) {
+ case DsdtDeviceLan:
+ //Update the MAC
+ Status = GetEnvMac (DevNextID, AddressBuffer);
+ AddressByte = 6;
+ break;
+ case DsdtDeviceSas:
+ //Update SAS Address.
+ Status = GetSasAddress (DevNextID, AddressBuffer);
+ AddressByte = 8;
+ break;
+ default:
+ Status = EFI_INVALID_PARAMETER;
+ }
+ if (EFI_ERROR (Status)) {
+ FreePool (AddressBuffer);
+ return Status;
+ }
+
+ for (Count = 0; Count < AddressByte; Count++) {
+ Status = AcpiTableProtocol->GetOption (CurrentHandle, 1, &DataType,
&Buffer, &DataSize);
+ if (EFI_ERROR (Status)) {
+ break;
+ }
+
+ Data = Buffer;
+ DBG(" _DSD Child Subnode Store Op Code 0x%02X 0x%02X %02X DataType
0x%X\n",
+ DataSize, Data[0], DataSize > 1 ? Data[1] : 0, DataType);
+
+ if (DataType != EFI_ACPI_DATA_TYPE_UINT)
+ break;
+
+ // only need one byte.
+ // FIXME: Assume the CPU is little endian
+ Status = AcpiTableProtocol->SetOption (
+ CurrentHandle,
+ 1,
+ AddressBuffer + Count,
+ sizeof(UINT8));
+ if (EFI_ERROR (Status)) {
+ break;
+ }
+
+ Status = AcpiTableProtocol->GetChild (ChildHandle, &CurrentHandle);
+ if (EFI_ERROR (Status) || CurrentHandle == NULL) {
+ break;
+ }
+ }
+
+ FreePool (AddressBuffer);
+ return Status;
+}
+
+STATIC
+EFI_STATUS
+UpdateAddressInPackage (
+ IN EFI_ACPI_SDT_PROTOCOL *AcpiTableProtocol,
+ IN EFI_ACPI_HANDLE ChildHandle,
+ IN UINTN Level,
+ IN OUT BOOLEAN *Found,
+ IN UINTN DevNextID,
+ IN DSDT_DEVICE_TYPE FoundDev
+ )
+{
+ // ASL template for ethernet driver:
+/*
+ * Name (_DSD, Package () {
+ * ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
+ * Package () {
+ * Package (2) {"mac-address", Package (6) { 00, 11, 22, 33, 44, 55 }}
+ * Package (2) {"phy-channel", 0},
+ * Package (2) {"phy-mode", "rgmii"},
+ * Package (2) {"max-transfer-unit", 0x5dc}, // MTU of 1500
+ * Package (2) {"max-speed", 0x3e8}, // 1000 Mbps
+ * }
+ * })
+ */
+ EFI_STATUS Status;
+ EFI_ACPI_DATA_TYPE DataType;
+ CONST UINT8 *Data;
+ CONST VOID *Buffer;
+ UINTN DataSize;
+ EFI_ACPI_HANDLE CurrentHandle;
+ EFI_ACPI_HANDLE NextHandle;
+ EFI_ACPI_HANDLE Level1Handle;
+
+ DBG("In Level:%d\n", Level);
+ Level1Handle = NULL;
+ Status = EFI_SUCCESS;
+ for (CurrentHandle = NULL; ;) {
+ Status = AcpiTableProtocol->GetChild(ChildHandle, &CurrentHandle);
+ if (Level == 1) {
+ Level1Handle = CurrentHandle;
+ }
+ if (Level != 3 && (EFI_ERROR(Status) || CurrentHandle == NULL))
+ break;
+
+ Status = AcpiTableProtocol->GetOption(CurrentHandle, 0, &DataType,
&Buffer, &DataSize);
+ Data = Buffer;
+ DBG("_DSD Child Subnode Store Op Code 0x%02X 0x%02X %02X\n",
+ DataSize, Data[0], DataSize > 1 ? Data[1] : 0);
+
+ if (Level < 2 && Data[0] != AML_PACKAGE_OP)
+ continue;
+
+ if (Level == 2 && Data[0] == AML_STRING_PREFIX) {
+ Status = AcpiTableProtocol->GetOption(CurrentHandle, 1, &DataType,
&Buffer, &DataSize);
+ if (EFI_ERROR(Status))
+ break;
+
+ DBG(" _DSD Child Subnode Store Op Code 0x%02X 0x%02X %02X\n",
+ DataSize, Data[0], DataSize > 1 ? Data[1] : 0);
+
+ Data = Buffer;
+ if ((DataType != EFI_ACPI_DATA_TYPE_STRING) ||
+ ((AsciiStrCmp ((CHAR8 *) Data, ACPI_ETH_MAC_KEY) != 0) &&
+ (AsciiStrCmp ((CHAR8 *) Data, ACPI_ETH_SAS_KEY) != 0))) {
+ ChildHandle = Level1Handle;
+ continue;
+ }
+
+ DBG("_DSD Key Type %d. Found address key\n", DataType);
+
+ //
+ // We found the node.
+ //
+ *Found = TRUE;
+ continue;
+ }
+
+ if (Level == 3 && *Found) {
+ Status = UpdateAddressInOption (AcpiTableProtocol, ChildHandle,
DevNextID, FoundDev);
+ break;
+ }
+
+ if (Level > 3)
+ break;
+
+ //Search next package
+ AcpiTableProtocol->Open((VOID *) Buffer, &NextHandle);
+ Status = UpdateAddressInPackage (
+ AcpiTableProtocol,
+ NextHandle,
+ Level + 1,
+ Found,
+ DevNextID,
+ FoundDev);
+ AcpiTableProtocol->Close(NextHandle);
+ if (!EFI_ERROR(Status))
+ break;
+ }
+
+ return Status;
+}
+
+STATIC
+EFI_STATUS
+SearchReplacePackageAddress (
+ IN EFI_ACPI_SDT_PROTOCOL *AcpiTableProtocol,
+ IN EFI_ACPI_HANDLE ChildHandle,
+ IN UINTN DevNextID,
+ IN DSDT_DEVICE_TYPE FoundDev
+ )
+{
+ BOOLEAN Found = FALSE;
+ UINTN Level = 0;
+
+ return UpdateAddressInPackage (AcpiTableProtocol, ChildHandle, Level,
+ &Found, DevNextID, FoundDev);
+}
+
+EFI_STATUS
+GetDeviceInfo (
+ EFI_ACPI_SDT_PROTOCOL *AcpiTableProtocol,
+ EFI_ACPI_HANDLE ChildHandle,
+ UINTN *DevID,
+ DSDT_DEVICE_TYPE *FoundDev
+ )
+{
+ EFI_STATUS Status;
+ EFI_ACPI_DATA_TYPE DataType;
+ CHAR8 Data[5];
+ CONST VOID *Buffer;
+ UINTN DataSize;
+
+ // Get NameString
+ Status = AcpiTableProtocol->GetOption (ChildHandle, 1, &DataType, &Buffer,
&DataSize);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((EFI_D_ERROR, "[%a:%d] Get NameString failed: %r\n", __FUNCTION__,
__LINE__, Status));
+ return Status;
+ }
+
+ CopyMem (Data, Buffer, 4);
+ DBG("Size %p Data %02x %02x %02x %02x\n", DataSize, Data[0], Data[1],
Data[2], Data[3]);
+
+ Data[4] = '\0';
+ if ((DataSize != 4) ||
+ (Data[3] > '9' || Data[3] < '0')) {
+ DEBUG ((DEBUG_ERROR, "The NameString %a is not ETHn or SASn\n", Data));
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (AsciiStrnCmp ("ETH", Data, 3) == 0) {
+ *FoundDev = DsdtDeviceLan;
+ } else if (AsciiStrnCmp ("SAS", Data, 3) == 0) {
+ *FoundDev = DsdtDeviceSas;
+ } else {
+ DEBUG ((DEBUG_ERROR, "[%a:%d] The NameString %a is not ETHn or SASn\n",
+ __FUNCTION__, __LINE__, Data));
+ return EFI_INVALID_PARAMETER;
+ }
+
+ *DevID = Data[3] - '0';
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS ProcessDSDTDevice (
+ EFI_ACPI_SDT_PROTOCOL *AcpiTableProtocol,
+ EFI_ACPI_HANDLE ChildHandle)
+{
+ EFI_STATUS Status;
+ EFI_ACPI_DATA_TYPE DataType;
+ CONST UINT8 *Data;
+ CONST VOID *Buffer;
+ UINTN DataSize;
+ EFI_ACPI_HANDLE DevHandle;
+ DSDT_DEVICE_TYPE FoundDev = DsdtDeviceUnknown;
+ UINTN DevNextID;
+ BOOLEAN HisiAcpiDevNotFound;
+ UINTN Index;
+
+ Status = AcpiTableProtocol->GetOption(ChildHandle, 0, &DataType, &Buffer,
&DataSize);
+ if (EFI_ERROR(Status))
+ return EFI_SUCCESS;
+
+ Data = Buffer;
+ //
+ // Skip all non-device type
+ //
+ if (DataSize != 2 || Data[0] != AML_EXT_OP || Data[1] != AML_EXT_DEVICE_OP)
+ return EFI_SUCCESS;
+
+ //
+ // Walk the device type node
+ //
+ for (DevHandle = NULL; ; ) {
+ Status = AcpiTableProtocol->GetChild(ChildHandle, &DevHandle);
+ if (EFI_ERROR(Status) || DevHandle == NULL)
+ break;
+
+ //
+ // Search for _HID with Device ID
+ //
+ Status = AcpiTableProtocol->GetOption(DevHandle, 0, &DataType, &Buffer,
&DataSize);
+ if (EFI_ERROR(Status))
+ break;
+
+ Data = Buffer;
+ DBG("Data Type 0x%02X %02X\n", Data[0], DataSize > 1 ? Data[1] : 0);
+ if (DataSize == 1 && Data[0] == AML_NAME_OP) {
+ Status = AcpiTableProtocol->GetOption(DevHandle, 1, &DataType, &Buffer,
&DataSize);
+ if (EFI_ERROR(Status))
+ break;
+
+ Data = Buffer;
+ if (DataType == EFI_ACPI_DATA_TYPE_NAME_STRING) {
+ if (AsciiStrnCmp((CHAR8 *) Data, "_HID", 4) == 0) {
+ EFI_ACPI_HANDLE ValueHandle;
+
+ Status = AcpiTableProtocol->GetOption(DevHandle, 2, &DataType,
&Buffer, &DataSize);
+ if (EFI_ERROR(Status))
+ break;
+
+ if (DataType != EFI_ACPI_DATA_TYPE_CHILD)
+ continue;
+
+ AcpiTableProtocol->Open((VOID *) Buffer, &ValueHandle);
+ Status = AcpiTableProtocol->GetOption(ValueHandle, 1, &DataType,
&Buffer, &DataSize);
+
+ Data = Buffer;
+ DBG("[%a:%d] - _HID = %a\n", __FUNCTION__, __LINE__, Data);
+
+ if (EFI_ERROR(Status) ||
+ DataType != EFI_ACPI_DATA_TYPE_STRING) {
+ AcpiTableProtocol->Close (ValueHandle);
+ FoundDev = DsdtDeviceUnknown;
+ continue;
+ }
+
+ HisiAcpiDevNotFound = TRUE;
+ for (Index = 0; Index < ARRAY_SIZE (mHisiAcpiDevId); Index++) {
+ if (AsciiStrCmp ((CHAR8 *)Data, mHisiAcpiDevId[Index]) == 0) {
+ HisiAcpiDevNotFound = FALSE;
+ break;
+ }
+ }
+ if (HisiAcpiDevNotFound) {
+ AcpiTableProtocol->Close (ValueHandle);
+ FoundDev = DsdtDeviceUnknown;
+ continue;
+ }
+
+ DBG("Found device\n");
+ AcpiTableProtocol->Close(ValueHandle);
+ Status = GetDeviceInfo (AcpiTableProtocol, ChildHandle, &DevNextID,
&FoundDev);
+ if (EFI_ERROR (Status)) {
+ continue;
+ }
+ } else if ((FoundDev != DsdtDeviceUnknown) && AsciiStrnCmp((CHAR8 *)
Data, "_DSD", 4) == 0) {
+ //
+ // Patch DSD data
+ //
+ EFI_ACPI_HANDLE PkgHandle;
+ Status = AcpiTableProtocol->GetOption(DevHandle, 2, &DataType,
&Buffer, &DataSize);
+ if (EFI_ERROR(Status))
+ break;
+
+ if (DataType != EFI_ACPI_DATA_TYPE_CHILD)
+ continue;
+
+ //
+ // Open package data
+ //
+ AcpiTableProtocol->Open((VOID *) Buffer, &PkgHandle);
+ Status = AcpiTableProtocol->GetOption(PkgHandle, 0, &DataType,
&Buffer, &DataSize);
+
+ Data = Buffer;
+ DBG("_DSD Subnode Store Op Code 0x%02X %02X\n",
+ Data[0], DataSize > 1 ? Data[1] : 0);
+
+ //
+ // Walk the _DSD node
+ //
+ if (DataSize == 1 && Data[0] == AML_PACKAGE_OP) {
+ Status = SearchReplacePackageAddress (AcpiTableProtocol,
PkgHandle, DevNextID, FoundDev);
+ }
+
+ AcpiTableProtocol->Close(PkgHandle);
+ } else if (AsciiStrnCmp ((CHAR8 *) Data, "_ADR", 4) == 0) {
+ Status = AcpiTableProtocol->GetOption (DevHandle, 2, &DataType,
&Buffer, &DataSize);
+ if (EFI_ERROR (Status)) {
+ break;
+ }
+
+ if (DataType != EFI_ACPI_DATA_TYPE_CHILD) {
+ continue;
+ }
+
+ Status = GetDeviceInfo (AcpiTableProtocol, ChildHandle, &DevNextID,
&FoundDev);
+
+ if (EFI_ERROR (Status)) {
+ continue;
+ }
+ }
+ }
+ } else if ((DataSize == 2) && (Data[0] == AML_EXT_OP) && (Data[1] ==
AML_EXT_DEVICE_OP)) {
+ ProcessDSDTDevice (AcpiTableProtocol, DevHandle);
+ }
+ }
+
+ return EFI_SUCCESS;
+}
+
+
+BOOLEAN
+IsSbScope (
+ EFI_ACPI_SDT_PROTOCOL *AcpiTableProtocol,
+ EFI_ACPI_HANDLE ChildHandle
+ )
+{
+ EFI_STATUS Status;
+ EFI_ACPI_DATA_TYPE DataType;
+ CONST UINT8 *Data;
+ CONST VOID *Buffer;
+ UINTN DataSize;
+
+ Status = AcpiTableProtocol->GetOption (ChildHandle, 0, &DataType, &Buffer,
&DataSize);
+ if (EFI_ERROR(Status)) return FALSE;
+
+ Data = Buffer;
+ if (DataSize != 1 || Data[0] != AML_SCOPE_OP) {
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+EFI_STATUS ProcessDSDTChild(
+ EFI_ACPI_SDT_PROTOCOL *AcpiTableProtocol,
+ EFI_ACPI_HANDLE ChildHandle)
+{
+ EFI_STATUS Status;
+ EFI_ACPI_HANDLE DevHandle;
+
+ // Check Scope(_SB) at first
+ if (!IsSbScope (AcpiTableProtocol, ChildHandle)) {
+ return ProcessDSDTDevice (AcpiTableProtocol, ChildHandle);
+ }
+
+ for (DevHandle = NULL; ; ) {
+ Status = AcpiTableProtocol->GetChild (ChildHandle, &DevHandle);
+ if (EFI_ERROR(Status) || DevHandle == NULL) {
+ break;
+ }
+
+ ProcessDSDTDevice (AcpiTableProtocol, DevHandle);
+ }
+
+ return EFI_SUCCESS;
+}
+
+static EFI_STATUS ProcessDSDT(
+ EFI_ACPI_SDT_PROTOCOL *AcpiTableProtocol,
+ EFI_ACPI_HANDLE TableHandle)
+{
+ EFI_STATUS Status;
+ EFI_ACPI_HANDLE ChildHandle;
+ //
+ // Parse table for device type
+ DBG ("[%a:%d] - TableHandle=%p\n", __FUNCTION__, __LINE__, TableHandle);
+ for (ChildHandle = NULL; ; ) {
+ Status = AcpiTableProtocol->GetChild(TableHandle, &ChildHandle);
+ DBG ("[%a:%d] - Child=%p, %r\n", __FUNCTION__, __LINE__, ChildHandle,
Status);
+ if (EFI_ERROR(Status))
+ break;
+ if (ChildHandle == NULL)
+ break;
+
+ ProcessDSDTChild(AcpiTableProtocol, ChildHandle);
+ }
+
+ return EFI_SUCCESS;
+}
+
+STATIC
+VOID
+AcpiCheckSum (
+ IN OUT EFI_ACPI_SDT_HEADER *Table
+ )
+{
+ UINTN ChecksumOffset;
+ UINT8 *Buffer;
+
+ ChecksumOffset = OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER, Checksum);
+ Buffer = (UINT8 *)Table;
+
+ //
+ // set checksum to 0 first
+ //
+ Buffer[ChecksumOffset] = 0;
+
+ //
+ // Update checksum value
+ //
+ Buffer[ChecksumOffset] = CalculateCheckSum8 (Buffer, Table->Length);
+}
+
+EFI_STATUS
+UpdateAcpiDsdtTable (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+ EFI_ACPI_SDT_PROTOCOL *AcpiTableProtocol;
+ EFI_ACPI_SDT_HEADER *Table;
+ EFI_ACPI_TABLE_VERSION TableVersion;
+ UINTN TableKey;
+ EFI_ACPI_HANDLE TableHandle;
+ UINTN i;
+
+ DEBUG ((EFI_D_ERROR, "Updating Ethernet MAC in ACPI DSDT...\n"));
+
+ //
+ // Find the AcpiTable protocol
+ Status = gBS->LocateProtocol(&gEfiAcpiSdtProtocolGuid, NULL, (VOID**)
&AcpiTableProtocol);
+ if (EFI_ERROR(Status)) {
+ DBG("Unable to locate ACPI table protocol\n");
+ return EFI_SUCCESS;
+ }
+
+ //
+ // Search for DSDT Table
+ for (i = 0; i < EFI_ACPI_MAX_NUM_TABLES; i++) {
+ Status = AcpiTableProtocol->GetAcpiTable(i, &Table, &TableVersion,
&TableKey);
+ if (EFI_ERROR(Status))
+ break;
+ if (Table->Signature != DSDT_SIGNATURE)
+ continue;
+
+ Status = AcpiTableProtocol->OpenSdt(TableKey, &TableHandle);
+ if (EFI_ERROR(Status))
+ break;
+
+ ProcessDSDT(AcpiTableProtocol, TableHandle);
+
+ AcpiTableProtocol->Close(TableHandle);
+ AcpiCheckSum (Table);
+ }
+
+ return EFI_SUCCESS;
+}
diff --git a/Silicon/Hisilicon/Drivers/AcpiPlatformDxe/UpdateDsdt.h
b/Silicon/Hisilicon/Drivers/AcpiPlatformDxe/UpdateDsdt.h
new file mode 100644
index 0000000..246eb92
--- /dev/null
+++ b/Silicon/Hisilicon/Drivers/AcpiPlatformDxe/UpdateDsdt.h
@@ -0,0 +1,16 @@
+/*
+ *
+ * Copyright (c) 2014, Applied Micro Circuits Corporation
+ * Copyright (c) 2020, Hisilicon Limited. All rights reserved.
+ * Copyright (c) 2015, Linaro Limited. All rights reserved.
+ * Author: Loc Ho <l...@apm.com>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause-Patent
+ */
+#ifndef UPDATE_DSDT_H_
+#define UPDATE_DSDT_H_
+
+EFI_STATUS UpdateAcpiDsdtTable (VOID);
+
+#endif
+
--
2.8.1
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