From: Wasim Khan <wasim.k...@nxp.com>
Add PlatformDxe to do platform specific work.
At present it sets PCDs for PCIe controller based on
SoC version, which are used later during initialization
of PCIe controller.
Signed-off-by: Wasim Khan <wasim.k...@nxp.com>
---
Platform/NXP/LX2160aRdbPkg/Drivers/PlatformDxe/PlatformDxe.inf | 35 ++++++++
Platform/NXP/LX2160aRdbPkg/Drivers/PlatformDxe/PlatformDxe.c | 90
++++++++++++++++++++
2 files changed, 125 insertions(+)
diff --git a/Platform/NXP/LX2160aRdbPkg/Drivers/PlatformDxe/PlatformDxe.inf
b/Platform/NXP/LX2160aRdbPkg/Drivers/PlatformDxe/PlatformDxe.inf
new file mode 100644
index 000000000000..2514adf1d69d
--- /dev/null
+++ b/Platform/NXP/LX2160aRdbPkg/Drivers/PlatformDxe/PlatformDxe.inf
@@ -0,0 +1,35 @@
+## @file
+#
+# Copyright 2020 NXP
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010019
+ BASE_NAME = PlatformDxe
+ FILE_GUID = C4063EBA-7729-11EA-BC55-0232AC130003
+ MODULE_TYPE = DXE_DRIVER
+ VERSION_STRING = 1.0
+ ENTRY_POINT = PlatformDxeEntryPoint
+
+[Sources]
+ PlatformDxe.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ Silicon/NXP/Chassis3V2/Chassis3V2.dec
+ Silicon/NXP/LX2160A/LX2160A.dec
+ Silicon/NXP/NxpQoriqLs.dec
+
+[LibraryClasses]
+ PcdLib
+ UefiDriverEntryPoint
+
+[Pcd]
+ gNxpQoriqLsTokenSpaceGuid.PcdPciCfgShiftEnable
+ gNxpQoriqLsTokenSpaceGuid.PcdPciLsGen4Ctrl
+
+[Depex]
+ TRUE
diff --git a/Platform/NXP/LX2160aRdbPkg/Drivers/PlatformDxe/PlatformDxe.c
b/Platform/NXP/LX2160aRdbPkg/Drivers/PlatformDxe/PlatformDxe.c
new file mode 100644
index 000000000000..0caabb448ec0
--- /dev/null
+++ b/Platform/NXP/LX2160aRdbPkg/Drivers/PlatformDxe/PlatformDxe.c
@@ -0,0 +1,90 @@
+/** @file
+*
+* Copyright 2020 NXP
+*
+* SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+#include <Library/DebugLib.h>
+#include <Library/PcdLib.h>
+#include <Library/SocLib.h>
+#include <Soc.h>
+
+/**
+ Set PCDs for PCIe controller based on SoC version.
+ LX2160-Rev1 and LX2160-Rev2 has different PCIe controller. This function
+ check the SoC version and set PCDs for PCIe controller which will be
+ used by PciHostBridgeLib and PciSegmentLib for controller initialization.
+
+ @return EFI_SUCCESS PCDs were set successfully
+ @return EFI_INVALID_PARAMETER Invalid major version number
+**/
+EFI_STATUS
+SetPciControllerPcdOptions (
+ VOID
+ )
+{
+ UINT32 Svr;
+
+ Svr = SocGetSvr ();
+ if (SVR_SOC_VER(Svr) == SVR_LX2160A) {
+ switch (SVR_MAJOR(Svr)) {
+ case 0x1:
+ //
+ // LX2160-Rev1 and LX2160-Rev2 has different PCIe controllers.
+ // Set PcdPciLsGen4Ctrl to TRUE for LX2160-Rev1, which will be used
+ // by PciHostBridgeLib and PciSegmentLib to differentiate both
controllers
+ // and perform controller specific initialization.
+ //
+ PcdSetBoolS (PcdPciLsGen4Ctrl, TRUE);
+ break;
+ case 0x2:
+ //
+ // PCIe controller in LX2160-Rev2 supports two methods for config
+ // transactions.
+ // 1 - Default (Non ECAM compliant): PCIe controller
+ // requires target BDF to be written to bit[31:16] of type0/type1
+ // outbound window.
+ // 2 - CFG SHIFT: PCIe controller shifts BDF from bits[27:12] to
+ // bits[31:16] and supports Enhanced Configuration Address Mapping (ECAM)
+ // mechanism.
+ //
+ // Set PcdPciCfgShiftEnable to TRUE for LX2160-Rev2, which will be used
by
+ // PciHostBridgeLib and PciSegmentLib to enable CFG SHIFT feature on
+ // PCIe controller and program the iATU windows accordingly.
+ //
+ PcdSetBoolS (PcdPciCfgShiftEnable, TRUE);
+ break;
+ default:
+ DEBUG ((DEBUG_ERROR, "%a: Invalid SoC Version 0x%x \n", __FUNCTION__,
+ SVR_MAJOR(Svr)));
+ return EFI_INVALID_PARAMETER;
+ }
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ The entry point for PlatformDxe driver. This driver
+ intends to perform platform specific initialization.
+
+ @param[in] ImageHandle The image handle of the driver.
+ @param[in] SystemTable The system table.
+
+ @retval EFI_SUCCESS Driver initialization success.
+
+**/
+EFI_STATUS
+EFIAPI
+PlatformDxeEntryPoint (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+
+ // Set PCDs for PCIe controller
+ Status = SetPciControllerPcdOptions ();
+
+ return Status;
+}
--
2.7.4
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