-----Original Message-----
From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Sunil V L
Sent: Saturday, January 28, 2023 1:18 PM
To: devel@edk2.groups.io
Cc: Ard Biesheuvel <ardb+tianocore@...>; Yao, Jiewen <jiewen.yao@...>; Justen, Jordan L <jordan.l.justen@...>; Gerd Hoffmann <kraxel@...>; Abner Chang <abner.chang@...>
Subject: [edk2-devel] [edk2-staging/RiscV64QemuVirt PATCH V7 16/20] OvmfPkg/RiscVVirt: Add VirtNorFlashPlatformLib library

Qemu NOR flash driver needs this library. Add this library for RISC-V leveraged from SbsaQemu.

Cc: Ard Biesheuvel <ardb+tianocore@...>
Cc: Jiewen Yao <jiewen.yao@...>
Cc: Jordan Justen <jordan.l.justen@...>
Cc: Gerd Hoffmann <kraxel@...>
Signed-off-by: Sunil V L <sunilvl@...>
Acked-by: Abner Chang <abner.chang@...>
---
OvmfPkg/RiscVVirt/Library/VirtNorFlashPlatformLib/VirtNorFlashStaticLib.inf | 30 +++++++++++++++
OvmfPkg/RiscVVirt/Library/VirtNorFlashPlatformLib/VirtNorFlashStaticLib.c | 40 ++++++++++++++++++++
2 files changed, 70 insertions(+)

diff --git a/OvmfPkg/RiscVVirt/Library/VirtNorFlashPlatformLib/VirtNorFlashStaticLib.inf b/OvmfPkg/RiscVVirt/Library/VirtNorFlashPlatformLib/VirtNorFlashStaticLib.inf
new file mode 100644
index 000000000000..4e87bd437380
--- /dev/null
+++ b/OvmfPkg/RiscVVirt/Library/VirtNorFlashPlatformLib/VirtNorFlashStat
+++ icLib.inf
@@ -0,0 +1,30 @@
+#/** @file
+#
+# Component description file for VirtNorFlashStaticLib module # #
+Copyright (c) 2014, Linaro Ltd. All rights reserved.<BR> # #
+SPDX-License-Identifier: BSD-2-Clause-Patent # #**/
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = VirtNorFlashStaticLib
+ FILE_GUID = 064742F1-E531-4D7D-A154-22315889CC23
+ MODULE_TYPE = DXE_DRIVER
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = VirtNorFlashPlatformLib
+
+[Sources.common]
+ VirtNorFlashStaticLib.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+ OvmfPkg/OvmfPkg.dec
+
+[Pcd]
+ gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFdBaseAddress
+ gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFirmwareFdSize
+ gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase
diff --git a/OvmfPkg/RiscVVirt/Library/VirtNorFlashPlatformLib/VirtNorFlashStaticLib.c b/OvmfPkg/RiscVVirt/Library/VirtNorFlashPlatformLib/VirtNorFlashStaticLib.c
new file mode 100644
index 000000000000..fdc2ccb6294e
--- /dev/null
+++ b/OvmfPkg/RiscVVirt/Library/VirtNorFlashPlatformLib/VirtNorFlashStat
+++ icLib.c
@@ -0,0 +1,40 @@
+/** @file
+
+ Copyright (c) 2019, Linaro Ltd. All rights reserved
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+ **/
+
+#include <Base.h>
+#include <PiDxe.h>
+#include <Library/VirtNorFlashPlatformLib.h>
+
+#define QEMU_NOR_BLOCK_SIZE SIZE_256KB
+
+EFI_STATUS
+VirtNorFlashPlatformInitialization (
+ VOID
+ )
+{
+ return EFI_SUCCESS;
+}
+
+VIRT_NOR_FLASH_DESCRIPTION mNorFlashDevice = {
+ FixedPcdGet32 (PcdOvmfFdBaseAddress),
+ FixedPcdGet64 (PcdFlashNvStorageVariableBase),
+ FixedPcdGet32 (PcdOvmfFirmwareFdSize),
+ QEMU_NOR_BLOCK_SIZE
+};
+
+EFI_STATUS
+VirtNorFlashPlatformGetDevices (
+ OUT VIRT_NOR_FLASH_DESCRIPTION **NorFlashDescriptions,
+ OUT UINT32 *Count
+ )
+{
+ *NorFlashDescriptions = &mNorFlashDevice;
+ *Count = 1;
+ return EFI_SUCCESS;
+}
--
2.38.0