From 02f1fd767af032ed112356dd8b5457e95c6ad57f Mon Sep 17 00:00:00 2001
From: Sughosh Ganu <sughosh.ganu@linaro.org>
Date: Thu, 25 Jun 2020 16:30:12 +0100
Subject: NorFlashPlatformLib: Add platform specific nor flash library

Add a platform specific library for passing information on the nor
flash device on the platform. This includes the number of devices,
their size and base address.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
---
 .../QemuVirt/Library/NorFlashLib/NorFlashLib.c     | 47 ++++++++++++++++++++++
 .../QemuVirt/Library/NorFlashLib/NorFlashLib.inf   | 28 +++++++++++++
 2 files changed, 75 insertions(+)
 create mode 100644 Platform/QemuVirt/Library/NorFlashLib/NorFlashLib.c
 create mode 100644 Platform/QemuVirt/Library/NorFlashLib/NorFlashLib.inf

diff --git a/Platform/QemuVirt/Library/NorFlashLib/NorFlashLib.c b/Platform/QemuVirt/Library/NorFlashLib/NorFlashLib.c
new file mode 100644
index 00000000..a04b771d
--- /dev/null
+++ b/Platform/QemuVirt/Library/NorFlashLib/NorFlashLib.c
@@ -0,0 +1,47 @@
+/** @file
+
+  Copyright (c) 2018, ARM Ltd. All rights reserved.
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+ **/
+
+#include <PiDxe.h>
+#include <Library/DebugLib.h>
+#include <Library/IoLib.h>
+#include <Library/NorFlashPlatformLib.h>
+#include <SgiPlatform.h>
+
+STATIC NOR_FLASH_DESCRIPTION mNorFlashDevices[] = {
+  {
+//    0x403c5000,
+ //   0x403c5000,
+    0x40419000,
+    0x40419000,
+    SIZE_256KB * 40,
+    SIZE_256KB,
+  },
+};
+
+EFI_STATUS
+NorFlashPlatformInitialization (
+  VOID
+  )
+{
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+NorFlashPlatformGetDevices (
+  OUT NOR_FLASH_DESCRIPTION   **NorFlashDevices,
+  OUT UINT32                  *Count
+  )
+{
+  if ((NorFlashDevices == NULL) || (Count == NULL)) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  *NorFlashDevices = mNorFlashDevices;
+  *Count = ARRAY_SIZE (mNorFlashDevices);
+  return EFI_SUCCESS;
+}
diff --git a/Platform/QemuVirt/Library/NorFlashLib/NorFlashLib.inf b/Platform/QemuVirt/Library/NorFlashLib/NorFlashLib.inf
new file mode 100644
index 00000000..057870ee
--- /dev/null
+++ b/Platform/QemuVirt/Library/NorFlashLib/NorFlashLib.inf
@@ -0,0 +1,28 @@
+#/** @file
+#
+#  Copyright (c) 2018, ARM Ltd. All rights reserved.
+
+#  SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+#**/
+
+[Defines]
+  INF_VERSION                    = 0x0001001A
+  BASE_NAME                      = NorFlashQemuLib
+  FILE_GUID                      = 3f021755-6d74-4065-9ee4-98225267b36e
+  MODULE_TYPE                    = BASE
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = NorFlashPlatformLib
+
+[Sources.common]
+  NorFlashLib.c
+
+[Packages]
+  ArmPlatformPkg/ArmPlatformPkg.dec
+  MdePkg/MdePkg.dec
+  Platform/ARM/SgiPkg/SgiPlatform.dec
+
+[LibraryClasses]
+  BaseLib
+  DebugLib
+  IoLib
-- 
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