diff options
Diffstat (limited to 'ArmPlatformPkg/PrePi/AArch64')
-rw-r--r-- | ArmPlatformPkg/PrePi/AArch64/ArchPrePi.c | 34 | ||||
-rw-r--r-- | ArmPlatformPkg/PrePi/AArch64/ModuleEntryPoint.S | 96 |
2 files changed, 0 insertions, 130 deletions
diff --git a/ArmPlatformPkg/PrePi/AArch64/ArchPrePi.c b/ArmPlatformPkg/PrePi/AArch64/ArchPrePi.c deleted file mode 100644 index 27a85049fa..0000000000 --- a/ArmPlatformPkg/PrePi/AArch64/ArchPrePi.c +++ /dev/null @@ -1,34 +0,0 @@ -/** @file
-
- Copyright (c) 2011-2017, ARM Limited. All rights reserved.
-
- SPDX-License-Identifier: BSD-2-Clause-Patent
-
-**/
-
-#include "PrePi.h"
-
-#include <AArch64/AArch64.h>
-
-VOID
-ArchInitialize (
- VOID
- )
-{
- // Enable Floating Point
- if (FixedPcdGet32 (PcdVFPEnabled)) {
- ArmEnableVFP ();
- }
-
- if (ArmReadCurrentEL () == AARCH64_EL2) {
- // Trap General Exceptions. All exceptions that would be routed to EL1 are routed to EL2
- ArmWriteHcr (ARM_HCR_TGE);
-
- /* Enable Timer access for non-secure EL1 and EL0
- The cnthctl_el2 register bits are architecturally
- UNKNOWN on reset.
- Disable event stream as it is not in use at this stage
- */
- ArmWriteCntHctl (CNTHCTL_EL2_EL1PCTEN | CNTHCTL_EL2_EL1PCEN);
- }
-}
diff --git a/ArmPlatformPkg/PrePi/AArch64/ModuleEntryPoint.S b/ArmPlatformPkg/PrePi/AArch64/ModuleEntryPoint.S deleted file mode 100644 index c45fc5f400..0000000000 --- a/ArmPlatformPkg/PrePi/AArch64/ModuleEntryPoint.S +++ /dev/null @@ -1,96 +0,0 @@ -//
-// Copyright (c) 2011 - 2020, Arm Limited. All rights reserved.<BR>
-//
-// SPDX-License-Identifier: BSD-2-Clause-Patent
-//
-//
-
-#include <AsmMacroIoLibV8.h>
-
-ASM_FUNC(_ModuleEntryPoint)
- // Do early platform specific actions
- bl ASM_PFX(ArmPlatformPeiBootAction)
-
-_SetSVCMode:
-// 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:
- ldr x1, mSystemMemoryEnd
-
-_SetupStackPosition:
- // r1 = SystemMemoryTop
-
- // Calculate Top of the Firmware Device
- MOV64 (x2, FixedPcdGet64(PcdFdBaseAddress))
- MOV32 (x3, FixedPcdGet32(PcdFdSize) - 1)
- sub x3, x3, #1
- add x3, x3, x2 // x3 = FdTop = PcdFdBaseAddress + PcdFdSize
-
- // UEFI Memory Size (stacks are allocated in this region)
- MOV32 (x4, 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 x0, x1, x3 // x0 = SystemMemoryTop - FdTop
- b.mi _SetupStack // Jump if negative (FdTop > SystemMemoryTop). Case when the PrePi is in XIP memory outside of the DRAM
- cmp x0, x4
- b.ge _SetupStack
-
- // Case the top of stacks is the FdBaseAddress
- mov x1, x2
-
-_SetupStack:
- // x1 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 x11, x1, #1
- b.cs _SetupOverflowStack
-
-_SetupAlignedStack:
- mov x1, x11
- b _GetBaseUefiMemory
-
-_SetupOverflowStack:
- // Case memory at the top of the address space. Ensure the top of the stack is EFI_PAGE_SIZE
- // aligned (4KB)
- and x1, x1, ~EFI_PAGE_MASK
-
-_GetBaseUefiMemory:
- // Calculate the Base of the UEFI Memory
- sub x11, x1, x4
-
-_GetStackBase:
- // r1 = The top of the stack
- mov sp, x1
-
- // Stack for the primary core = PrimaryCoreStack
- MOV32 (x2, FixedPcdGet32(PcdCPUCorePrimaryStackSize))
- sub x12, x1, x2
-
- // Get ID of this CPU in multi-core system
- bl ASM_PFX(ArmReadMpidr)
-
- mov x1, x11
- mov x2, x12
-
- // Move sec startup address into a data register
- // Ensure we're jumping to FV version of the code (not boot remapped alias)
- ldr x4, =ASM_PFX(CEntryPoint)
-
- // Set the frame pointer to NULL so any backtraces terminate here
- mov x29, xzr
-
- // Jump to PrePiCore C code
- // x0 = MpId
- // x1 = UefiMemoryBase
- // x2 = StacksBase
- blr x4
-
-_NeverReturn:
- b _NeverReturn
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