ArmPlatformPkg: Retire PrePi

Retire the PrePi SEC driver, which has been replaced by PeilessSec.inf

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>

2 files changed, 0 insertions, 125 deletions

diff --git a/ArmPlatformPkg/PrePi/Arm/ArchPrePi.c b/ArmPlatformPkg/PrePi/Arm/ArchPrePi.c
deleted file mode 100644
index ac8abe5ff5..0000000000
--- a/ArmPlatformPkg/PrePi/Arm/ArchPrePi.c
+++ /dev/null
@@ -1,22 +0,0 @@
-/** @file

-

-  Copyright (c) 2011 - 2013, ARM Limited. All rights reserved.

-

-  SPDX-License-Identifier: BSD-2-Clause-Patent

-

-**/

-

-#include "PrePi.h"

-

-VOID

-ArchInitialize (

-  VOID

-  )

-{

-  // Enable program flow prediction, if supported.

-  ArmEnableBranchPrediction ();

-

-  if (FixedPcdGet32 (PcdVFPEnabled)) {

-    ArmEnableVFP ();

-  }

-}

diff --git a/ArmPlatformPkg/PrePi/Arm/ModuleEntryPoint.S b/ArmPlatformPkg/PrePi/Arm/ModuleEntryPoint.S
deleted file mode 100644
index c87f94689c..0000000000
--- a/ArmPlatformPkg/PrePi/Arm/ModuleEntryPoint.S
+++ /dev/null
@@ -1,103 +0,0 @@
-//

-//  Copyright (c) 2011 - 2020, Arm Limited. All rights reserved.<BR>

-//

-//  SPDX-License-Identifier: BSD-2-Clause-Patent

-//

-//

-

-#include <AsmMacroIoLib.h>

-

-#include <Arm/AArch32.h>

-

-ASM_FUNC(_ModuleEntryPoint)

-  // Do early platform specific actions

-  bl    ASM_PFX(ArmPlatformPeiBootAction)

-

-_SetSVCMode:

-  // Enter SVC mode, Disable FIQ and IRQ

-  mov     r1, #(CPSR_MODE_SVC | CPSR_IRQ | CPSR_FIQ)

-  msr     CPSR_c, r1

-

-// Check if we can install the stack at the top of the System Memory or if we need

-// to install the stacks at the bottom of the Firmware Device (case the FD is located

-// at the top of the DRAM)

-_SystemMemoryEndInit:

-  ADRL  (r1, mSystemMemoryEnd)

-  ldrd  r2, r3, [r1]

-  teq   r3, #0

-  moveq r1, r2

-  mvnne r1, #0

-

-_SetupStackPosition:

-  // r1 = SystemMemoryTop

-

-  // Calculate Top of the Firmware Device

-  MOV32 (r2, FixedPcdGet32(PcdFdBaseAddress))

-  MOV32 (r3, FixedPcdGet32(PcdFdSize) - 1)

-  add   r3, r3, r2      // r3 = FdTop = PcdFdBaseAddress + PcdFdSize

-

-  // UEFI Memory Size (stacks are allocated in this region)

-  MOV32 (r4, FixedPcdGet32(PcdSystemMemoryUefiRegionSize))

-

-  //

-  // Reserve the memory for the UEFI region (contain stacks on its top)

-  //

-

-  // Calculate how much space there is between the top of the Firmware and the Top of the System Memory

-  subs  r0, r1, r3      // r0 = SystemMemoryTop - FdTop

-  bmi   _SetupStack     // Jump if negative (FdTop > SystemMemoryTop). Case when the PrePi is in XIP memory outside of the DRAM

-  cmp   r0, r4

-  bge   _SetupStack

-

-  // Case the top of stacks is the FdBaseAddress

-  mov   r1, r2

-

-_SetupStack:

-  // r1 contains the top of the stack (and the UEFI Memory)

-

-  // Because the 'push' instruction is equivalent to 'stmdb' (decrement before), we need to increment

-  // one to the top of the stack. We check if incrementing one does not overflow (case of DRAM at the

-  // top of the memory space)

-  adds  r9, r1, #1

-  bcs   _SetupOverflowStack

-

-_SetupAlignedStack:

-  mov   r1, r9

-  b     _GetBaseUefiMemory

-

-_SetupOverflowStack:

-  // Case memory at the top of the address space. Ensure the top of the stack is EFI_PAGE_SIZE

-  // aligned (4KB)

-  MOV32 (r9, ~EFI_PAGE_MASK & 0xFFFFFFFF)

-  and   r1, r1, r9

-

-_GetBaseUefiMemory:

-  // Calculate the Base of the UEFI Memory

-  sub   r9, r1, r4

-

-_GetStackBase:

-  // r1 = The top of the stack

-  mov   sp, r1

-

-  // Stack for the primary core = PrimaryCoreStack

-  MOV32 (r2, FixedPcdGet32(PcdCPUCorePrimaryStackSize))

-  sub   r10, r1, r2

-

-  // Get ID of this CPU in multi-core system

-  bl    ASM_PFX(ArmReadMpidr)

-

-  mov   r1, r9

-  mov   r2, r10

-

-  // Move sec startup address into a data register

-  // Ensure we're jumping to FV version of the code (not boot remapped alias)

-  ldr   r4, =ASM_PFX(CEntryPoint)

-

-  // Jump to PrePiCore C code

-  //    r0 = MpId

-  //    r1 = UefiMemoryBase

-  //    r2 = StacksBase

-  blx   r4

-

-_NeverReturn:

-  b _NeverReturn