1 files changed, 54 insertions, 0 deletions
diff --git a/ArmPlatformPkg/ArmRealViewEbPkg/Library/ArmRealViewEbSecLibRTSM/ArmRealViewEbBoot.S b/ArmPlatformPkg/ArmRealViewEbPkg/Library/ArmRealViewEbSecLibRTSM/ArmRealViewEbBoot.S
new file mode 100644
index 0000000000..ba87650f99
--- /dev/null
+++ b/ArmPlatformPkg/ArmRealViewEbPkg/Library/ArmRealViewEbSecLibRTSM/ArmRealViewEbBoot.S
@@ -0,0 +1,54 @@
+//
+//  Copyright (c) 2011-2012, ARM Limited. All rights reserved.
+//
+//  This program and the accompanying materials
+//  are licensed and made available under the terms and conditions of the BSD License
+//  which accompanies this distribution.  The full text of the license may be found at
+//  http://opensource.org/licenses/bsd-license.php
+//
+//  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+//
+//
+
+#include <AsmMacroIoLib.h>
+#include <Base.h>
+#include <Library/ArmPlatformSecLib.h>
+#include <ArmPlatform.h>
+#include <AutoGen.h>
+
+.text
+.align 3
+
+GCC_ASM_EXPORT(ArmPlatformSecBootAction)
+GCC_ASM_EXPORT(ArmPlatformSecBootMemoryInit)
+
+/**
+  Call at the beginning of the platform boot up
+
+  This function allows the firmware platform to do extra actions at the early
+  stage of the platform power up.
+
+  Note: This function must be implemented in assembler as there is no stack set up yet
+
+**/
+ASM_PFX(ArmPlatformSecBootAction):
+  LoadConstantToReg (ARM_EB_SYS_FLAGS_NV_REG, r0)
+  ldr   r0, [r0]
+  cmp   r0, #0
+  bxeq  lr
+  bxne  r0
+
+/**
+  Initialize the memory where the initial stacks will reside
+
+  This memory can contain the initial stacks (Secure and Secure Monitor stacks).
+  In some platform, this region is already initialized and the implementation of this function can
+  do nothing. This memory can also represent the Secure RAM.
+  This function is called before the satck has been set up. Its implementation must ensure the stack
+  pointer is not used (probably required to use assembly language)
+
+**/
+ASM_PFX(ArmPlatformSecBootMemoryInit):
+  // The SMC does not need to be initialized for RTSM
+  bx    lr