[PATCH 05/12] MdePkg: Add ARM timer support for BaseDebugBootlog

["Alexander Graf" <graf@amazon.com>]

This patch adds bootlog time stamp infrastructure for ARM. It leverages
the architected timer which is present on all supported platforms.

Signed-off-by: Alexander Graf <graf@amazon.com>
---
 .../BaseDebugBootlog/DebugBootlogArm.c        | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 MdePkg/Library/BaseDebugBootlog/DebugBootlogArm.c

diff --git a/MdePkg/Library/BaseDebugBootlog/DebugBootlogArm.c b/MdePkg/Library/BaseDebugBootlog/DebugBootlogArm.c
new file mode 100644
index 0000000000..5a2c346844
--- /dev/null
+++ b/MdePkg/Library/BaseDebugBootlog/DebugBootlogArm.c
@@ -0,0 +1,32 @@
+/** @file
+  Base Debug library instance for a RAM based boot log
+  It provides functions to store debug messages in RAM and make them available as
+  Bootlog Configuration Table.
+
+  Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
+  Copyright (c) 2022, Amazon Development Center Germany GmbH.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "BaseDebugBootlog.h"
+#include <Library/ArmGenericTimerCounterLib.h>
+
+UINT64
+EFIAPI
+BaseDebugLibBootlogTicksPerSecond (
+  VOID
+  )
+{
+  return ArmGenericTimerGetTimerFreq();
+}
+
+UINT64
+EFIAPI
+BaseDebugLibBootlogTicks (
+  VOID
+  )
+{
+  return ArmGenericTimerGetSystemCount();
+}
+
-- 
2.28.0.394.ge197136389




Amazon Development Center Germany GmbH
Krausenstr. 38
10117 Berlin
Geschaeftsfuehrung: Christian Schlaeger, Jonathan Weiss
Eingetragen am Amtsgericht Charlottenburg unter HRB 149173 B
Sitz: Berlin
Ust-ID: DE 289 237 879