1 /** @file 2 * 3 * Copyright (c) 2011-2014, ARM Limited. All rights reserved. 4 * 5 * This program and the accompanying materials 6 * are licensed and made available under the terms and conditions of the BSD License 7 * which accompanies this distribution. The full text of the license may be found at 8 * http://opensource.org/licenses/bsd-license.php 9 * 10 * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 * 13 **/ 14 15 #include <Library/ArmPlatformLib.h> 16 #include <Library/DebugLib.h> 17 #include <Library/PcdLib.h> 18 19 /** 20 Initialize the Secure peripherals and memory regions 21 22 If Trustzone is supported by your platform then this function makes the required initialization 23 of the secure peripherals and memory regions. 24 25 **/ 26 VOID ArmPlatformSecTrustzoneInit(IN UINTN MpId)27ArmPlatformSecTrustzoneInit ( 28 IN UINTN MpId 29 ) 30 { 31 // Secondary cores might have to set the Secure SGIs into the GICD_IGROUPR0 32 if (!ArmPlatformIsPrimaryCore (MpId)) { 33 return; 34 } 35 36 ASSERT(FALSE); 37 } 38 39 /** 40 Initialize controllers that must setup at the early stage 41 42 Some peripherals must be initialized in Secure World. 43 For example, some L2x0 requires to be initialized in Secure World 44 45 **/ 46 RETURN_STATUS ArmPlatformSecInitialize(IN UINTN MpId)47ArmPlatformSecInitialize ( 48 IN UINTN MpId 49 ) 50 { 51 // If it is not the primary core then there is nothing to do 52 if (!ArmPlatformIsPrimaryCore (MpId)) { 53 return RETURN_SUCCESS; 54 } 55 56 // Do nothing yet 57 return RETURN_SUCCESS; 58 } 59 60 /** 61 Call before jumping to Normal World 62 63 This function allows the firmware platform to do extra actions before 64 jumping to the Normal World 65 66 **/ 67 VOID ArmPlatformSecExtraAction(IN UINTN MpId,OUT UINTN * JumpAddress)68ArmPlatformSecExtraAction ( 69 IN UINTN MpId, 70 OUT UINTN* JumpAddress 71 ) 72 { 73 *JumpAddress = PcdGet64 (PcdFvBaseAddress); 74 } 75