mirror of https://github.com/acidanthera/audk.git
128 lines
2.9 KiB
C
128 lines
2.9 KiB
C
/** @file
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*
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* Copyright (c) 2011, ARM Limited. All rights reserved.
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*
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* This program and the accompanying materials
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* are licensed and made available under the terms and conditions of the BSD License
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* which accompanies this distribution. The full text of the license may be found at
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* http://opensource.org/licenses/bsd-license.php
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*
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* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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*
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**/
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#include <Library/IoLib.h>
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#include <Library/ArmPlatformLib.h>
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#include <Library/DebugLib.h>
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#include <Library/PcdLib.h>
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#include <Drivers/PL341Dmc.h>
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/**
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Return if Trustzone is supported by your platform
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A non-zero value must be returned if you want to support a Secure World on your platform.
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ArmPlatformTrustzoneInit() will later set up the secure regions.
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This function can return 0 even if Trustzone is supported by your processor. In this case,
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the platform will continue to run in Secure World.
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@return A non-zero value if Trustzone supported.
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**/
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UINTN
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ArmPlatformTrustzoneSupported (
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VOID
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)
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{
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// There is no Trustzone controllers (TZPC & TZASC) and no Secure Memory on RTSM
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return FALSE;
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}
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/**
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Initialize the Secure peripherals and memory regions
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If Trustzone is supported by your platform then this function makes the required initialization
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of the secure peripherals and memory regions.
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**/
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VOID
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ArmPlatformTrustzoneInit (
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VOID
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)
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{
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ASSERT(FALSE);
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}
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/**
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Remap the memory at 0x0
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Some platform requires or gives the ability to remap the memory at the address 0x0.
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This function can do nothing if this feature is not relevant to your platform.
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**/
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VOID
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ArmPlatformBootRemapping (
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VOID
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)
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{
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// Disable memory remapping and return to normal mapping
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MmioOr32 (ARM_EB_SYSCTRL, BIT8); //EB_SP810_CTRL_BASE
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}
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/**
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Return the current Boot Mode
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This function returns the boot reason on the platform
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**/
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EFI_BOOT_MODE
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ArmPlatformGetBootMode (
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VOID
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)
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{
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return BOOT_WITH_FULL_CONFIGURATION;
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}
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/**
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Initialize controllers that must setup at the early stage
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Some peripherals must be initialized in Secure World.
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For example, some L2x0 requires to be initialized in Secure World
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**/
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VOID
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ArmPlatformSecInitialize (
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VOID
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) {
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// Do nothing yet
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}
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/**
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Initialize controllers that must setup in the normal world
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This function is called by the ArmPlatformPkg/Pei or ArmPlatformPkg/Pei/PlatformPeim
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in the PEI phase.
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**/
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VOID
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ArmPlatformNormalInitialize (
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VOID
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)
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{
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// Nothing to do here
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}
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/**
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Initialize the system (or sometimes called permanent) memory
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This memory is generally represented by the DRAM.
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**/
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VOID
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ArmPlatformInitializeSystemMemory (
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VOID
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)
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{
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// We do not need to initialize the System Memory on RTSM
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}
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