1 files changed, 164 insertions, 0 deletions
diff --git a/Silicon/AMD/Styx/Library/AmdStyxLib/Styx.c b/Silicon/AMD/Styx/Library/AmdStyxLib/Styx.c
new file mode 100644
index 0000000000..f17a960d60
--- /dev/null
+++ b/Silicon/AMD/Styx/Library/AmdStyxLib/Styx.c
@@ -0,0 +1,164 @@
+/** @file
+*
+*  Copyright (c) 2011-2013, ARM Limited. All rights reserved.<BR>
+*  Copyright (c) 2014 - 2016, AMD 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.
+*
+**/
+/**
+  Derived from:
+   ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressLibRTSM/RTSM.c
+
+**/
+
+//
+// The package level header files this module uses
+//
+#include <PiPei.h>
+
+//
+// The protocols, PPI and GUID defintions for this module
+//
+#include <Ppi/ArmMpCoreInfo.h>
+#include <Guid/ArmMpCoreInfo.h>
+
+//
+// The Library classes this module consumes
+//
+#include <Library/PeimEntryPoint.h>
+#include <Library/PeiServicesLib.h>
+#include <Library/DebugLib.h>
+#include <Library/PcdLib.h>
+#include <Library/HobLib.h>
+#include <Library/ArmLib.h>
+#include <Library/ArmPlatformLib.h>
+#include <Library/BaseMemoryLib.h>
+
+
+extern EFI_GUID gAmdStyxMpCoreInfoGuid;
+
+
+UINTN
+ArmGetCpuCountPerCluster (
+  VOID
+  );
+
+
+/**
+  Return the current Boot Mode
+
+  This function returns the boot reason on the platform
+
+  @return   Return the current Boot Mode of the platform
+
+**/
+EFI_BOOT_MODE
+ArmPlatformGetBootMode (
+  VOID
+  )
+{
+  return BOOT_WITH_FULL_CONFIGURATION;
+}
+
+
+/**
+  Initialize controllers that must setup in the normal world
+
+  This function is called by the ArmPlatformPkg/Pei or ArmPlatformPkg/Pei/PlatformPeim
+  in the PEI phase.
+
+**/
+RETURN_STATUS
+ArmPlatformInitialize (
+  IN  UINTN                     MpId
+  )
+{
+  if (!ArmPlatformIsPrimaryCore (MpId)) {
+    return RETURN_SUCCESS;
+  }
+
+  // XXX Place holder XXX ...
+
+  return RETURN_SUCCESS;
+}
+
+
+/**
+  Initialize the system (or sometimes called permanent) memory
+
+  This memory is generally represented by the DRAM.
+
+**/
+VOID
+ArmPlatformInitializeSystemMemory (
+  VOID
+  )
+{
+  // Nothing to do here
+}
+
+
+//
+// Return list of cores in the system
+//
+EFI_STATUS
+PrePeiCoreGetMpCoreInfo (
+  OUT UINTN                   *ArmCoreCount,
+  OUT ARM_CORE_INFO           **ArmCoreInfoTable
+  )
+{
+  EFI_PEI_HOB_POINTERS    Hob;
+
+  if (ArmIsMpCore()) {
+    // Iterate through the HOBs and find if there is ARM PROCESSOR ENTRY HOB
+    for (Hob.Raw = GetHobList (); !END_OF_HOB_LIST(Hob); Hob.Raw = GET_NEXT_HOB(Hob)) {
+      // Check for Correct HOB type
+      if ((GET_HOB_TYPE (Hob)) == EFI_HOB_TYPE_GUID_EXTENSION) {
+        // Check for correct GUID type
+        if (CompareGuid(&(Hob.Guid->Name), &gAmdStyxMpCoreInfoGuid)) {
+          *ArmCoreInfoTable = (ARM_CORE_INFO *) GET_GUID_HOB_DATA(Hob);
+          *ArmCoreCount = GET_GUID_HOB_DATA_SIZE(Hob)/sizeof(ARM_CORE_INFO);
+          return EFI_SUCCESS;
+        }
+      }
+    }
+  }
+
+  return EFI_UNSUPPORTED;
+}
+
+
+ARM_MP_CORE_INFO_PPI mMpCoreInfoPpi = { PrePeiCoreGetMpCoreInfo };
+
+EFI_PEI_PPI_DESCRIPTOR      gPlatformPpiTable[] = {
+  {
+    EFI_PEI_PPI_DESCRIPTOR_PPI,
+    &gArmMpCoreInfoPpiGuid,
+    &mMpCoreInfoPpi
+  }
+};
+
+
+VOID
+ArmPlatformGetPlatformPpiList (
+  OUT UINTN                   *PpiListSize,
+  OUT EFI_PEI_PPI_DESCRIPTOR  **PpiList
+  )
+{
+  if (ArmIsMpCore()) {
+    *PpiListSize = sizeof(gPlatformPpiTable);
+    *PpiList = gPlatformPpiTable;
+  } else {
+    *PpiListSize = 0;
+    *PpiList = NULL;
+  }
+}
+
+