[edk2-devel] [edk2-platforms][PATCH 2/5] Platform/Sifive: remove redundant TimerDxe from Platform
Chai, Evan
evan.chai at intel.com
Thu Apr 6 05:24:20 UTC 2023
It will be replaced by UefiCpuPkg/CpuTimerDxeRiscV64.
Cc: Daniel Schaefer <git at danielschaefer.me>
Cc: Sunil V L <sunilvl at ventanamicro.com>
Cc: Andrei Warkentin <andrei.warkentin at intel.com>
Signed-off-by: Evan Chai <evan.chai at intel.com>
---
Platform/SiFive/U5SeriesPkg/FreedomU500VC707Board/U500.dsc | 2 +-
Platform/SiFive/U5SeriesPkg/FreedomU500VC707Board/U500.fdf | 2 +-
Platform/SiFive/U5SeriesPkg/FreedomU540HiFiveUnleashedBoard/U540.dsc | 2 +-
Platform/SiFive/U5SeriesPkg/FreedomU540HiFiveUnleashedBoard/U540.fdf | 2 +-
Platform/SiFive/U5SeriesPkg/Universal/Dxe/TimerDxe/Timer.c | 311 -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Platform/SiFive/U5SeriesPkg/Universal/Dxe/TimerDxe/Timer.h | 174 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Platform/SiFive/U5SeriesPkg/Universal/Dxe/TimerDxe/Timer.uni | 14 --------------
Platform/SiFive/U5SeriesPkg/Universal/Dxe/TimerDxe/TimerDxe.inf | 54 ------------------------------------------------------
Platform/SiFive/U5SeriesPkg/Universal/Dxe/TimerDxe/TimerExtra.uni | 12 ------------
9 files changed, 4 insertions(+), 569 deletions(-)
diff --git a/Platform/SiFive/U5SeriesPkg/FreedomU500VC707Board/U500.dsc b/Platform/SiFive/U5SeriesPkg/FreedomU500VC707Board/U500.dsc
index efcfdd35..c26b4608 100644
--- a/Platform/SiFive/U5SeriesPkg/FreedomU500VC707Board/U500.dsc
+++ b/Platform/SiFive/U5SeriesPkg/FreedomU500VC707Board/U500.dsc
@@ -460,7 +460,7 @@
#
# RISC-V Platform module
#
- Platform/SiFive/U5SeriesPkg/Universal/Dxe/TimerDxe/TimerDxe.inf
+ UefiCpuPkg/CpuTimerDxeRiscV64/CpuTimerDxeRiscV64.inf
Platform/SiFive/U5SeriesPkg/Universal/Dxe/RamFvbServicesRuntimeDxe/FvbServicesRuntimeDxe.inf
#
diff --git a/Platform/SiFive/U5SeriesPkg/FreedomU500VC707Board/U500.fdf b/Platform/SiFive/U5SeriesPkg/FreedomU500VC707Board/U500.fdf
index da4d3379..b17c960d 100644
--- a/Platform/SiFive/U5SeriesPkg/FreedomU500VC707Board/U500.fdf
+++ b/Platform/SiFive/U5SeriesPkg/FreedomU500VC707Board/U500.fdf
@@ -150,7 +150,7 @@ INF EmbeddedPkg/RealTimeClockRuntimeDxe/RealTimeClockRuntimeDxe.inf
INF Platform/SiFive/U5SeriesPkg/Universal/Dxe/RamFvbServicesRuntimeDxe/FvbServicesRuntimeDxe.inf
# RISC-V Core Drivers
-INF Platform/SiFive/U5SeriesPkg/Universal/Dxe/TimerDxe/TimerDxe.inf
+INF UefiCpuPkg/CpuTimerDxeRiscV64/CpuTimerDxeRiscV64.inf
INF UefiCpuPkg/CpuDxeRiscV64/CpuDxeRiscV64.inf
INF Silicon/RISC-V/ProcessorPkg/Universal/SmbiosDxe/RiscVSmbiosDxe.inf
diff --git a/Platform/SiFive/U5SeriesPkg/FreedomU540HiFiveUnleashedBoard/U540.dsc b/Platform/SiFive/U5SeriesPkg/FreedomU540HiFiveUnleashedBoard/U540.dsc
index d92f8166..4487913f 100644
--- a/Platform/SiFive/U5SeriesPkg/FreedomU540HiFiveUnleashedBoard/U540.dsc
+++ b/Platform/SiFive/U5SeriesPkg/FreedomU540HiFiveUnleashedBoard/U540.dsc
@@ -459,7 +459,7 @@
#
# RISC-V Platform module
#
- Platform/SiFive/U5SeriesPkg/Universal/Dxe/TimerDxe/TimerDxe.inf
+ UefiCpuPkg/CpuTimerDxeRiscV64/CpuTimerDxeRiscV64.inf
Platform/SiFive/U5SeriesPkg/Universal/Dxe/RamFvbServicesRuntimeDxe/FvbServicesRuntimeDxe.inf
#
diff --git a/Platform/SiFive/U5SeriesPkg/FreedomU540HiFiveUnleashedBoard/U540.fdf b/Platform/SiFive/U5SeriesPkg/FreedomU540HiFiveUnleashedBoard/U540.fdf
index 237ed74a..9ae89647 100644
--- a/Platform/SiFive/U5SeriesPkg/FreedomU540HiFiveUnleashedBoard/U540.fdf
+++ b/Platform/SiFive/U5SeriesPkg/FreedomU540HiFiveUnleashedBoard/U540.fdf
@@ -150,7 +150,7 @@ INF EmbeddedPkg/RealTimeClockRuntimeDxe/RealTimeClockRuntimeDxe.inf
INF Platform/SiFive/U5SeriesPkg/Universal/Dxe/RamFvbServicesRuntimeDxe/FvbServicesRuntimeDxe.inf
# RISC-V Core Drivers
-INF Platform/SiFive/U5SeriesPkg/Universal/Dxe/TimerDxe/TimerDxe.inf
+INF UefiCpuPkg/CpuTimerDxeRiscV64/CpuTimerDxeRiscV64.inf
INF UefiCpuPkg/CpuDxeRiscV64/CpuDxeRiscV64.inf
INF Silicon/RISC-V/ProcessorPkg/Universal/SmbiosDxe/RiscVSmbiosDxe.inf
diff --git a/Platform/SiFive/U5SeriesPkg/Universal/Dxe/TimerDxe/Timer.c b/Platform/SiFive/U5SeriesPkg/Universal/Dxe/TimerDxe/Timer.c
deleted file mode 100644
index deb57992..00000000
--- a/Platform/SiFive/U5SeriesPkg/Universal/Dxe/TimerDxe/Timer.c
+++ /dev/null
@@ -1,311 +0,0 @@
-/** @file
- RISC-V Timer Architectural Protocol for U5 series platform.
-
- Copyright (c) 2019, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
-
- SPDX-License-Identifier: BSD-2-Clause-Patent
-
-**/
-
-#include "Timer.h"
-#include <Library/RiscVEdk2SbiLib.h>
-#include <sbi/riscv_asm.h>
-#include <sbi/riscv_encoding.h>
-#include <sbi/riscv_io.h>
-#include <sbi/riscv_atomic.h>
-#include <U5Clint.h>
-
-BOOLEAN TimerHandlerReentry = FALSE;
-
-//
-// The handle onto which the Timer Architectural Protocol will be installed
-//
-STATIC EFI_HANDLE mTimerHandle = NULL;
-
-//
-// The Timer Architectural Protocol that this driver produces
-//
-EFI_TIMER_ARCH_PROTOCOL mTimer = {
- TimerDriverRegisterHandler,
- TimerDriverSetTimerPeriod,
- TimerDriverGetTimerPeriod,
- TimerDriverGenerateSoftInterrupt
-};
-
-//
-// Pointer to the CPU Architectural Protocol instance
-//
-EFI_CPU_ARCH_PROTOCOL *mCpu;
-
-//
-// The notification function to call on every timer interrupt.
-// A bug in the compiler prevents us from initializing this here.
-//
-STATIC EFI_TIMER_NOTIFY mTimerNotifyFunction;
-
-//
-// The current period of the timer interrupt
-//
-STATIC UINT64 mTimerPeriod = 0;
-
-/**
- U5 Series Timer Interrupt Handler.
-
- @param InterruptType The type of interrupt that occured
- @param SystemContext A pointer to the system context when the interrupt occured
-**/
-
-VOID
-EFIAPI
-TimerInterruptHandler (
- IN EFI_EXCEPTION_TYPE InterruptType,
- IN EFI_SYSTEM_CONTEXT SystemContext
- )
-{
- EFI_TPL OriginalTPL;
- UINT64 RiscvTimer;
-
- if (TimerHandlerReentry) {
- //
- // MMode timer occurred when processing
- // SMode timer handler.
- //
- RiscvTimer = RiscVReadMachineTimerInterface();
- SbiSetTimer (RiscvTimer += mTimerPeriod);
- csr_clear(CSR_SIP, MIP_STIP);
- return;
- }
- TimerHandlerReentry = TRUE;
-
- OriginalTPL = gBS->RaiseTPL (TPL_HIGH_LEVEL);
- csr_clear(CSR_SIE, MIP_STIP); // Disable SMode timer int
- csr_clear(CSR_SIP, MIP_STIP);
- if (mTimerPeriod == 0) {
- gBS->RestoreTPL (OriginalTPL);
- csr_clear(CSR_SIE, MIP_STIP); // Disable SMode timer int
- return;
- }
- if (mTimerNotifyFunction != NULL) {
- mTimerNotifyFunction (mTimerPeriod);
- }
- RiscvTimer = RiscVReadMachineTimerInterface();
- SbiSetTimer (RiscvTimer += mTimerPeriod);
- gBS->RestoreTPL (OriginalTPL);
- csr_set(CSR_SIE, MIP_STIP); // enable SMode timer int
- TimerHandlerReentry = FALSE;
-}
-
-/**
-
- This function registers the handler NotifyFunction so it is called every time
- the timer interrupt fires. It also passes the amount of time since the last
- handler call to the NotifyFunction. If NotifyFunction is NULL, then the
- handler is unregistered. If the handler is registered, then EFI_SUCCESS is
- returned. If the CPU does not support registering a timer interrupt handler,
- then EFI_UNSUPPORTED is returned. If an attempt is made to register a handler
- when a handler is already registered, then EFI_ALREADY_STARTED is returned.
- If an attempt is made to unregister a handler when a handler is not registered,
- then EFI_INVALID_PARAMETER is returned. If an error occurs attempting to
- register the NotifyFunction with the timer interrupt, then EFI_DEVICE_ERROR
- is returned.
-
- @param This The EFI_TIMER_ARCH_PROTOCOL instance.
- @param NotifyFunction The function to call when a timer interrupt fires. This
- function executes at TPL_HIGH_LEVEL. The DXE Core will
- register a handler for the timer interrupt, so it can know
- how much time has passed. This information is used to
- signal timer based events. NULL will unregister the handler.
-
- @retval EFI_SUCCESS The timer handler was registered.
- @retval EFI_UNSUPPORTED The platform does not support timer interrupts.
- @retval EFI_ALREADY_STARTED NotifyFunction is not NULL, and a handler is already
- registered.
- @retval EFI_INVALID_PARAMETER NotifyFunction is NULL, and a handler was not
- previously registered.
- @retval EFI_DEVICE_ERROR The timer handler could not be registered.
-
-**/
-EFI_STATUS
-EFIAPI
-TimerDriverRegisterHandler (
- IN EFI_TIMER_ARCH_PROTOCOL *This,
- IN EFI_TIMER_NOTIFY NotifyFunction
- )
-{
- DEBUG ((DEBUG_INFO, "TimerDriverRegisterHandler(0x%lx) called\n", NotifyFunction));
- mTimerNotifyFunction = NotifyFunction;
- return EFI_SUCCESS;
-}
-
-/**
-
- This function adjusts the period of timer interrupts to the value specified
- by TimerPeriod. If the timer period is updated, then the selected timer
- period is stored in EFI_TIMER.TimerPeriod, and EFI_SUCCESS is returned. If
- the timer hardware is not programmable, then EFI_UNSUPPORTED is returned.
- If an error occurs while attempting to update the timer period, then the
- timer hardware will be put back in its state prior to this call, and
- EFI_DEVICE_ERROR is returned. If TimerPeriod is 0, then the timer interrupt
- is disabled. This is not the same as disabling the CPU's interrupts.
- Instead, it must either turn off the timer hardware, or it must adjust the
- interrupt controller so that a CPU interrupt is not generated when the timer
- interrupt fires.
-
-
- @param This The EFI_TIMER_ARCH_PROTOCOL instance.
- @param TimerPeriod The rate to program the timer interrupt in 100 nS units. If
- the timer hardware is not programmable, then EFI_UNSUPPORTED is
- returned. If the timer is programmable, then the timer period
- will be rounded up to the nearest timer period that is supported
- by the timer hardware. If TimerPeriod is set to 0, then the
- timer interrupts will be disabled.
-
- @retval EFI_SUCCESS The timer period was changed.
- @retval EFI_UNSUPPORTED The platform cannot change the period of the timer interrupt.
- @retval EFI_DEVICE_ERROR The timer period could not be changed due to a device error.
-
-**/
-EFI_STATUS
-EFIAPI
-TimerDriverSetTimerPeriod (
- IN EFI_TIMER_ARCH_PROTOCOL *This,
- IN UINT64 TimerPeriod
- )
-{
- UINT64 RiscvTimer;
-
- DEBUG ((DEBUG_INFO, "TimerDriverSetTimerPeriod(0x%lx)\n", TimerPeriod));
-
- if (TimerPeriod == 0) {
- mTimerPeriod = 0;
- csr_clear(CSR_SIE, MIP_STIP); // disable timer int
- return EFI_SUCCESS;
- }
-
- mTimerPeriod = TimerPeriod; // convert unit from 100ns to 1us
- RiscvTimer = RiscVReadMachineTimerInterface();
- SbiSetTimer(RiscvTimer + mTimerPeriod / 10);
-
- mCpu->EnableInterrupt(mCpu);
- csr_set(CSR_SIE, MIP_STIP); // enable timer int
- return EFI_SUCCESS;
-}
-
-/**
-
- This function retrieves the period of timer interrupts in 100 ns units,
- returns that value in TimerPeriod, and returns EFI_SUCCESS. If TimerPeriod
- is NULL, then EFI_INVALID_PARAMETER is returned. If a TimerPeriod of 0 is
- returned, then the timer is currently disabled.
-
-
- @param This The EFI_TIMER_ARCH_PROTOCOL instance.
- @param TimerPeriod A pointer to the timer period to retrieve in 100 ns units. If
- 0 is returned, then the timer is currently disabled.
-
- @retval EFI_SUCCESS The timer period was returned in TimerPeriod.
- @retval EFI_INVALID_PARAMETER TimerPeriod is NULL.
-
-**/
-EFI_STATUS
-EFIAPI
-TimerDriverGetTimerPeriod (
- IN EFI_TIMER_ARCH_PROTOCOL *This,
- OUT UINT64 *TimerPeriod
- )
-{
- *TimerPeriod = mTimerPeriod;
- return EFI_SUCCESS;
-}
-
-/**
-
- This function generates a soft timer interrupt. If the platform does not support soft
- timer interrupts, then EFI_UNSUPPORTED is returned. Otherwise, EFI_SUCCESS is returned.
- If a handler has been registered through the EFI_TIMER_ARCH_PROTOCOL.RegisterHandler()
- service, then a soft timer interrupt will be generated. If the timer interrupt is
- enabled when this service is called, then the registered handler will be invoked. The
- registered handler should not be able to distinguish a hardware-generated timer
- interrupt from a software-generated timer interrupt.
-
-
- @param This The EFI_TIMER_ARCH_PROTOCOL instance.
-
- @retval EFI_SUCCESS The soft timer interrupt was generated.
- @retval EFI_UNSUPPORTEDT The platform does not support the generation of soft timer interrupts.
-
-**/
-EFI_STATUS
-EFIAPI
-TimerDriverGenerateSoftInterrupt (
- IN EFI_TIMER_ARCH_PROTOCOL *This
- )
-{
- return EFI_SUCCESS;
-}
-
-/**
- Initialize the Timer Architectural Protocol driver
-
- @param ImageHandle ImageHandle of the loaded driver
- @param SystemTable Pointer to the System Table
-
- @retval EFI_SUCCESS Timer Architectural Protocol created
- @retval EFI_OUT_OF_RESOURCES Not enough resources available to initialize driver.
- @retval EFI_DEVICE_ERROR A device error occured attempting to initialize the driver.
-
-**/
-EFI_STATUS
-EFIAPI
-TimerDriverInitialize (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
- )
-{
- EFI_STATUS Status;
-
- //
- // Initialize the pointer to our notify function.
- //
- mTimerNotifyFunction = NULL;
-
- //
- // Make sure the Timer Architectural Protocol is not already installed in the system
- //
- ASSERT_PROTOCOL_ALREADY_INSTALLED (NULL, &gEfiTimerArchProtocolGuid);
-
- //
- // Find the CPU architectural protocol.
- //
- Status = gBS->LocateProtocol (&gEfiCpuArchProtocolGuid, NULL, (VOID **) &mCpu);
- ASSERT_EFI_ERROR (Status);
-
- //
- // Force the timer to be disabled
- //
- Status = TimerDriverSetTimerPeriod (&mTimer, 0);
- ASSERT_EFI_ERROR (Status);
-
- //
- // Install interrupt handler for RISC-V Timer.
- //
- Status = mCpu->RegisterInterruptHandler (mCpu, EXCEPT_RISCV_TIMER_INT, TimerInterruptHandler);
- ASSERT_EFI_ERROR (Status);
-
- //
- // Force the timer to be enabled at its default period
- //
- Status = TimerDriverSetTimerPeriod (&mTimer, DEFAULT_TIMER_TICK_DURATION);
- ASSERT_EFI_ERROR (Status);
-
- //
- // Install the Timer Architectural Protocol onto a new handle
- //
- Status = gBS->InstallMultipleProtocolInterfaces (
- &mTimerHandle,
- &gEfiTimerArchProtocolGuid, &mTimer,
- NULL
- );
- ASSERT_EFI_ERROR (Status);
- return Status;
-}
diff --git a/Platform/SiFive/U5SeriesPkg/Universal/Dxe/TimerDxe/Timer.h b/Platform/SiFive/U5SeriesPkg/Universal/Dxe/TimerDxe/Timer.h
deleted file mode 100644
index 8301685c..00000000
--- a/Platform/SiFive/U5SeriesPkg/Universal/Dxe/TimerDxe/Timer.h
+++ /dev/null
@@ -1,174 +0,0 @@
-/** @file
- RISC-V Timer Architectural Protocol definitions for U5 Series platform,
-
- Copyright (c) 2019, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
-
- SPDX-License-Identifier: BSD-2-Clause-Patent
-
-**/
-
-#ifndef U5_SERIES_TIMER_H_
-#define U5_SERIES_TIMER_H_
-
-#include <PiDxe.h>
-
-#include <Protocol/Cpu.h>
-#include <Protocol/Timer.h>
-
-#include <Library/UefiBootServicesTableLib.h>
-#include <Library/BaseLib.h>
-#include <Library/DebugLib.h>
-#include <Library/IoLib.h>
-#include <Library/RiscVCpuLib.h>
-
-//
-// RISC-V use 100us timer.
-// The default timer tick duration is set to 10 ms = 10 * 1000 * 10 100 ns units
-//
-#define DEFAULT_TIMER_TICK_DURATION 100000
-
-extern VOID RiscvSetTimerPeriod (UINT32 TimerPeriod);
-
-//
-// Function Prototypes
-//
-/**
- Initialize the Timer Architectural Protocol driver
-
- @param ImageHandle ImageHandle of the loaded driver
- @param SystemTable Pointer to the System Table
-
- @retval EFI_SUCCESS Timer Architectural Protocol created
- @retval EFI_OUT_OF_RESOURCES Not enough resources available to initialize driver.
- @retval EFI_DEVICE_ERROR A device error occured attempting to initialize the driver.
-
-**/
-EFI_STATUS
-EFIAPI
-TimerDriverInitialize (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
- )
-;
-
-/**
-
- This function adjusts the period of timer interrupts to the value specified
- by TimerPeriod. If the timer period is updated, then the selected timer
- period is stored in EFI_TIMER.TimerPeriod, and EFI_SUCCESS is returned. If
- the timer hardware is not programmable, then EFI_UNSUPPORTED is returned.
- If an error occurs while attempting to update the timer period, then the
- timer hardware will be put back in its state prior to this call, and
- EFI_DEVICE_ERROR is returned. If TimerPeriod is 0, then the timer interrupt
- is disabled. This is not the same as disabling the CPU's interrupts.
- Instead, it must either turn off the timer hardware, or it must adjust the
- interrupt controller so that a CPU interrupt is not generated when the timer
- interrupt fires.
-
-
- @param This The EFI_TIMER_ARCH_PROTOCOL instance.
- @param NotifyFunction The rate to program the timer interrupt in 100 nS units. If
- the timer hardware is not programmable, then EFI_UNSUPPORTED is
- returned. If the timer is programmable, then the timer period
- will be rounded up to the nearest timer period that is supported
- by the timer hardware. If TimerPeriod is set to 0, then the
- timer interrupts will be disabled.
-
- @retval EFI_SUCCESS The timer period was changed.
- @retval EFI_UNSUPPORTED The platform cannot change the period of the timer interrupt.
- @retval EFI_DEVICE_ERROR The timer period could not be changed due to a device error.
-
-**/
-EFI_STATUS
-EFIAPI
-TimerDriverRegisterHandler (
- IN EFI_TIMER_ARCH_PROTOCOL *This,
- IN EFI_TIMER_NOTIFY NotifyFunction
- )
-;
-
-/**
-
- This function adjusts the period of timer interrupts to the value specified
- by TimerPeriod. If the timer period is updated, then the selected timer
- period is stored in EFI_TIMER.TimerPeriod, and EFI_SUCCESS is returned. If
- the timer hardware is not programmable, then EFI_UNSUPPORTED is returned.
- If an error occurs while attempting to update the timer period, then the
- timer hardware will be put back in its state prior to this call, and
- EFI_DEVICE_ERROR is returned. If TimerPeriod is 0, then the timer interrupt
- is disabled. This is not the same as disabling the CPU's interrupts.
- Instead, it must either turn off the timer hardware, or it must adjust the
- interrupt controller so that a CPU interrupt is not generated when the timer
- interrupt fires.
-
-
- @param This The EFI_TIMER_ARCH_PROTOCOL instance.
- @param TimerPeriod The rate to program the timer interrupt in 100 nS units. If
- the timer hardware is not programmable, then EFI_UNSUPPORTED is
- returned. If the timer is programmable, then the timer period
- will be rounded up to the nearest timer period that is supported
- by the timer hardware. If TimerPeriod is set to 0, then the
- timer interrupts will be disabled.
-
- @retval EFI_SUCCESS The timer period was changed.
- @retval EFI_UNSUPPORTED The platform cannot change the period of the timer interrupt.
- @retval EFI_DEVICE_ERROR The timer period could not be changed due to a device error.
-
-**/
-EFI_STATUS
-EFIAPI
-TimerDriverSetTimerPeriod (
- IN EFI_TIMER_ARCH_PROTOCOL *This,
- IN UINT64 TimerPeriod
- )
-;
-
-/**
-
- This function retrieves the period of timer interrupts in 100 ns units,
- returns that value in TimerPeriod, and returns EFI_SUCCESS. If TimerPeriod
- is NULL, then EFI_INVALID_PARAMETER is returned. If a TimerPeriod of 0 is
- returned, then the timer is currently disabled.
-
-
- @param This The EFI_TIMER_ARCH_PROTOCOL instance.
- @param TimerPeriod A pointer to the timer period to retrieve in 100 ns units. If
- 0 is returned, then the timer is currently disabled.
-
- @retval EFI_SUCCESS The timer period was returned in TimerPeriod.
- @retval EFI_INVALID_PARAMETER TimerPeriod is NULL.
-
-**/
-EFI_STATUS
-EFIAPI
-TimerDriverGetTimerPeriod (
- IN EFI_TIMER_ARCH_PROTOCOL *This,
- OUT UINT64 *TimerPeriod
- )
-;
-
-/**
-
- This function generates a soft timer interrupt. If the platform does not support soft
- timer interrupts, then EFI_UNSUPPORTED is returned. Otherwise, EFI_SUCCESS is returned.
- If a handler has been registered through the EFI_TIMER_ARCH_PROTOCOL.RegisterHandler()
- service, then a soft timer interrupt will be generated. If the timer interrupt is
- enabled when this service is called, then the registered handler will be invoked. The
- registered handler should not be able to distinguish a hardware-generated timer
- interrupt from a software-generated timer interrupt.
-
-
- @param This The EFI_TIMER_ARCH_PROTOCOL instance.
-
- @retval EFI_SUCCESS The soft timer interrupt was generated.
- @retval EFI_UNSUPPORTEDT The platform does not support the generation of soft timer interrupts.
-
-**/
-EFI_STATUS
-EFIAPI
-TimerDriverGenerateSoftInterrupt (
- IN EFI_TIMER_ARCH_PROTOCOL *This
- )
-;
-
-#endif
diff --git a/Platform/SiFive/U5SeriesPkg/Universal/Dxe/TimerDxe/Timer.uni b/Platform/SiFive/U5SeriesPkg/Universal/Dxe/TimerDxe/Timer.uni
deleted file mode 100644
index 38302244..00000000
--- a/Platform/SiFive/U5SeriesPkg/Universal/Dxe/TimerDxe/Timer.uni
+++ /dev/null
@@ -1,14 +0,0 @@
-// /** @file
-//
-// RISC-V Timer Arch protocol strings.
-//
-// Copyright (c) 2016, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
-//
-// SPDX-License-Identifier: BSD-2-Clause-Patent
-//
-// **/
-
-
-#string STR_MODULE_ABSTRACT #language en-US "RISC-V timer driver that provides Timer Arch protocol"
-
-#string STR_MODULE_DESCRIPTION #language en-US "RISC-V timer driver that provides Timer Arch protocol."
diff --git a/Platform/SiFive/U5SeriesPkg/Universal/Dxe/TimerDxe/TimerDxe.inf b/Platform/SiFive/U5SeriesPkg/Universal/Dxe/TimerDxe/TimerDxe.inf
deleted file mode 100644
index 4571621a..00000000
--- a/Platform/SiFive/U5SeriesPkg/Universal/Dxe/TimerDxe/TimerDxe.inf
+++ /dev/null
@@ -1,54 +0,0 @@
-## @file
-# RISC-V Timer Arch protocol module for U5 Series platform
-#
-# Copyright (c) 2019, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
-#
-# SPDX-License-Identifier: BSD-2-Clause-Patent
-#
-##
-
-[Defines]
- INF_VERSION = 0x0001001b
- BASE_NAME = Timer
- MODULE_UNI_FILE = Timer.uni
- FILE_GUID = 3F75D495-23FF-46B6-9D19-0DECC8A4EA91
- MODULE_TYPE = DXE_DRIVER
- VERSION_STRING = 1.0
- ENTRY_POINT = TimerDriverInitialize
-#
-# The following information is for reference only and not required by the build
-# tools.
-#
-# VALID_ARCHITECTURES = RISCV64
-#
-[Packages]
- MdePkg/MdePkg.dec
- Platform/SiFive/U5SeriesPkg/U5SeriesPkg.dec
- Silicon/RISC-V/ProcessorPkg/RiscVProcessorPkg.dec
-
-[LibraryClasses]
- BaseLib
- DebugLib
- IoLib
- MachineModeTimerLib
- RiscVCpuLib
- RiscVEdk2SbiLib
- UefiBootServicesTableLib
- UefiDriverEntryPoint
-
-[Sources]
- Timer.h
- Timer.c
-
-[Protocols]
- gEfiCpuArchProtocolGuid ## CONSUMES
- gEfiTimerArchProtocolGuid ## PRODUCES
-
-[Pcd]
- gUefiRiscVPkgTokenSpaceGuid.PcdRiscVMachineTimerFrequencyInHerz
-
-[Depex]
- gEfiCpuArchProtocolGuid
-
-[UserExtensions.TianoCore."ExtraFiles"]
- TimerExtra.uni
diff --git a/Platform/SiFive/U5SeriesPkg/Universal/Dxe/TimerDxe/TimerExtra.uni b/Platform/SiFive/U5SeriesPkg/Universal/Dxe/TimerDxe/TimerExtra.uni
deleted file mode 100644
index cf25ff14..00000000
--- a/Platform/SiFive/U5SeriesPkg/Universal/Dxe/TimerDxe/TimerExtra.uni
+++ /dev/null
@@ -1,12 +0,0 @@
-// /** @file
-// Timer Localized Strings and Content
-//
-// Copyright (c) 2016, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
-//
-// SPDX-License-Identifier: BSD-2-Clause-Patent
-//
-// **/
-
-#string STR_PROPERTIES_MODULE_NAME
-#language en-US
-"RISC-V Timer DXE Driver"
--
2.34.1
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