1 files changed, 164 insertions, 0 deletions
diff --git a/ArmPlatformPkg/ArmRealViewEbPkg/Pei/Sec.c b/ArmPlatformPkg/ArmRealViewEbPkg/Pei/Sec.c
new file mode 100644
index 0000000000..cb5eb0a7b1
--- /dev/null
+++ b/ArmPlatformPkg/ArmRealViewEbPkg/Pei/Sec.c
@@ -0,0 +1,164 @@
+/** @file
+  C Entry point for the SEC. First C code after the reset vector.
+
+  Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
+  
+  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 <PiPei.h>
+
+#include <Library/DebugLib.h>
+#include <Library/PrePiLib.h>
+#include <Library/PcdLib.h>
+#include <Library/IoLib.h>
+#include <Library/ArmLib.h>
+#include <Library/PeCoffGetEntryPointLib.h>
+#include <Library/DebugAgentLib.h>
+
+#include <Ppi/GuidedSectionExtraction.h>
+#include <Guid/LzmaDecompress.h>
+
+#include <ArmEb/ArmEb.h>
+
+#include "LzmaDecompress.h"
+
+VOID
+EFIAPI 
+_ModuleEntryPoint(
+  VOID
+  );
+
+CHAR8 *
+DeCygwinPathIfNeeded (
+  IN  CHAR8   *Name
+  );
+
+RETURN_STATUS
+EFIAPI
+SerialPortInitialize (
+  VOID
+  );
+  
+  
+VOID
+UartInit (
+  VOID
+  )
+{
+  // SEC phase needs to run library constructors by hand.
+  // This assumes we are linked agains the SerialLib
+  // In non SEC modules the init call is in autogenerated code.
+  SerialPortInitialize ();
+}
+
+VOID
+TimerInit (
+  VOID
+  )
+{
+  // configure SP810 to use 1MHz clock and disable
+  MmioAndThenOr32 (EB_SP810_CTRL_BASE + SP810_SYS_CTRL_REG, ~SP810_SYS_CTRL_TIMER2_EN, SP810_SYS_CTRL_TIMER2_TIMCLK);
+  // Enable
+  MmioOr32 (EB_SP810_CTRL_BASE + SP810_SYS_CTRL_REG, SP810_SYS_CTRL_TIMER2_EN);
+
+  // configure timer 2 for one shot operation, 32 bits, no prescaler, and interrupt disabled
+  MmioOr32 (EB_SP804_TIMER2_BASE + SP804_TIMER_CONTROL_REG, SP804_TIMER_CTRL_ONESHOT | SP804_TIMER_CTRL_32BIT | SP804_PRESCALE_DIV_1);
+
+  // preload the timer count register
+  MmioWrite32 (EB_SP804_TIMER2_BASE + SP804_TIMER_LOAD_REG, 1);
+
+  // enable the timer
+  MmioOr32 (EB_SP804_TIMER2_BASE + SP804_TIMER_CONTROL_REG, SP804_TIMER_CTRL_ENABLE);
+}
+
+
+VOID
+InitCache (
+  IN  UINT32  MemoryBase,
+  IN  UINT32  MemoryLength
+  );
+
+EFI_STATUS
+EFIAPI
+ExtractGuidedSectionLibConstructor (
+  VOID
+  );
+
+EFI_STATUS
+EFIAPI
+LzmaDecompressLibConstructor (
+  VOID
+  );
+
+
+VOID
+CEntryPoint (
+  IN  VOID  *MemoryBase,
+  IN  UINTN MemorySize,
+  IN  VOID  *StackBase,
+  IN  UINTN StackSize
+  )
+{
+  VOID *HobBase;
+
+  // HOB list is at bottom of stack area
+  // Stack grows from top-to-bottom towards HOB list
+  HobBase      = (VOID *)StackBase;
+  CreateHobList (MemoryBase, MemorySize, HobBase, StackBase);
+
+  // Turn off remapping NOR to 0. We can will now see DRAM in low memory
+  MmioOr32 (0x10001000 ,BIT8); //EB_SP810_CTRL_BASE
+
+  // Enable program flow prediction, if supported.
+  ArmEnableBranchPrediction ();
+
+  // Initialize CPU cache
+  InitCache ((UINT32)MemoryBase, (UINT32)MemorySize);
+
+  // Add memory allocation hob for relocated FD
+  BuildMemoryAllocationHob (FixedPcdGet32(PcdEmbeddedFdBaseAddress), FixedPcdGet32(PcdEmbeddedFdSize), EfiBootServicesData);
+
+  // Add the FVs to the hob list
+  BuildFvHob (PcdGet32(PcdFlashFvMainBase), PcdGet32(PcdFlashFvMainSize));
+
+  // Start talking
+  UartInit ();
+
+  InitializeDebugAgent (DEBUG_AGENT_INIT_PREMEM_SEC, NULL, NULL);
+  SaveAndSetDebugTimerInterrupt (TRUE);
+
+  DEBUG ((EFI_D_ERROR, "UART Enabled\n"));
+
+  // Start up a free running timer so that the timer lib will work
+  TimerInit ();
+
+  // SEC phase needs to run library constructors by hand.
+  ExtractGuidedSectionLibConstructor ();
+  LzmaDecompressLibConstructor ();
+
+  // Build HOBs to pass up our version of stuff the DXE Core needs to save space
+  BuildPeCoffLoaderHob ();
+  BuildExtractSectionHob (
+    &gLzmaCustomDecompressGuid,
+    LzmaGuidedSectionGetInfo,
+    LzmaGuidedSectionExtraction
+    );
+
+  // Assume the FV that contains the SEC (our code) also contains a compressed FV.
+  DecompressFirstFv ();
+
+  // Load the DXE Core and transfer control to it
+  LoadDxeCoreFromFv (NULL, 0);
+  
+  // DXE Core should always load and never return
+  ASSERT (FALSE);
+}
+