[edk2-platforms][PATCH V1 4/5] Platform/Sgi: Add support for RD-N2-Cfg2 Platform

["Pranav Madhu" <pranav.madhu@arm.com>]

From: Vijayenthiran Subramaniam <vijayenthiran.subramaniam@arm.com>

The RD-N2-Cfg2 platform is a quad-chip variant of the RD-N2 platform.
Each chip has reduced core count of four Neoverse N2 CPUs when compared
to the single-chip RD-N2 platform. Enable support for the RD-N2-Cfg2
platform.

Signed-off-by: Vijayenthiran Subramaniam <vijayenthiran.subramaniam@arm.com>
Signed-off-by: Pranav Madhu <pranav.madhu@arm.com>
---
 Platform/ARM/SgiPkg/RdN2Cfg2/RdN2Cfg2.dsc     | 58 ++++++++++++++++++++
 Platform/ARM/SgiPkg/RdN2Cfg2/RdN2Cfg2.fdf.inc | 10 ++++
 2 files changed, 68 insertions(+)

diff --git a/Platform/ARM/SgiPkg/RdN2Cfg2/RdN2Cfg2.dsc b/Platform/ARM/SgiPkg/RdN2Cfg2/RdN2Cfg2.dsc
new file mode 100644
index 000000000000..0a7991e77b78
--- /dev/null
+++ b/Platform/ARM/SgiPkg/RdN2Cfg2/RdN2Cfg2.dsc
@@ -0,0 +1,58 @@
+#
+#  Copyright (c) 2022, Arm Limited. All rights reserved.
+#
+#  SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+
+################################################################################
+#
+# Defines Section - statements that will be processed to create a Makefile.
+#
+################################################################################
+[Defines]
+  PLATFORM_NAME                  = RdN2Cfg2
+  PLATFORM_GUID                  = fd272907-b48e-4148-b6e5-fe762f20653d
+  PLATFORM_VERSION               = 0.1
+  DSC_SPECIFICATION              = 0x0001001B
+  OUTPUT_DIRECTORY               = Build/$(PLATFORM_NAME)
+  SUPPORTED_ARCHITECTURES        = AARCH64
+  BUILD_TARGETS                  = NOOPT|DEBUG|RELEASE
+  SKUID_IDENTIFIER               = DEFAULT
+  FLASH_DEFINITION               = Platform/ARM/SgiPkg/SgiPlatform.fdf
+  BOARD_DXE_FV_COMPONENTS        = Platform/ARM/SgiPkg/RdN2Cfg2/RdN2Cfg2.fdf.inc
+  BUILD_NUMBER                   = 1
+
+# include common definitions from SgiPlatform.dsc
+!include Platform/ARM/SgiPkg/SgiPlatform.dsc.inc
+!include Platform/ARM/SgiPkg/SgiMemoryMap2.dsc.inc
+
+# include common/basic libraries from MdePkg.
+!include MdePkg/MdeLibs.dsc.inc
+
+################################################################################
+#
+# Pcd Section - list of all EDK II PCD Entries defined by this Platform
+#
+################################################################################
+
+[PcdsFixedAtBuild.common]
+  # GIC Base Addresses
+  gArmTokenSpaceGuid.PcdGicDistributorBase|0x30000000
+  gArmTokenSpaceGuid.PcdGicRedistributorsBase|0x301C0000
+  gArmSgiTokenSpaceGuid.PcdGicSize|0x200000
+
+  # ARM Cores and Clusters
+  gArmPlatformTokenSpaceGuid.PcdCoreCount|1
+  gArmPlatformTokenSpaceGuid.PcdClusterCount|4
+
+  # Number of chips in the multi-chip package
+  gArmSgiTokenSpaceGuid.PcdChipCount|4
+
+################################################################################
+#
+# Components Section - list of all EDK II Modules needed by this Platform
+#
+################################################################################
+
+[Components.common]
+  Platform/ARM/SgiPkg/AcpiTables/RdN2Cfg2AcpiTables.inf
diff --git a/Platform/ARM/SgiPkg/RdN2Cfg2/RdN2Cfg2.fdf.inc b/Platform/ARM/SgiPkg/RdN2Cfg2/RdN2Cfg2.fdf.inc
new file mode 100644
index 000000000000..89df6d905811
--- /dev/null
+++ b/Platform/ARM/SgiPkg/RdN2Cfg2/RdN2Cfg2.fdf.inc
@@ -0,0 +1,10 @@
+#
+#  Copyright (c) 2022, Arm Limited. All rights reserved.
+#
+#  SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+
+# Per-platform additional content of the DXE phase firmware volume
+
+  # ACPI support
+  INF RuleOverride=ACPITABLE Platform/ARM/SgiPkg/AcpiTables/RdN2Cfg2AcpiTables.inf
-- 
2.25.1