[edk2-devel] [PATCH 1/1] MdeModulePkg: Load Serial driver earlier in DXE

["Borzeszkowski, Alan" <alan.borzeszkowski@intel.com>]

For the purpose of UEFI debug prints enablement in DXE phase,
Serial driver should load earlier. Separate .inf file is created
in order to make minimal changes to current implementation.

Signed-off-by: Alan Borzeszkowski <alan.borzeszkowski@intel.com>
---
 .../PciSioSerialDxe/PciSioSerialDxeEarly.inf  | 80 +++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100644 MdeModulePkg/Bus/Pci/PciSioSerialDxe/PciSioSerialDxeEarly.inf

diff --git a/MdeModulePkg/Bus/Pci/PciSioSerialDxe/PciSioSerialDxeEarly.inf b/MdeModulePkg/Bus/Pci/PciSioSerialDxe/PciSioSerialDxeEarly.inf
new file mode 100644
index 0000000000..2ead654898
--- /dev/null
+++ b/MdeModulePkg/Bus/Pci/PciSioSerialDxe/PciSioSerialDxeEarly.inf
@@ -0,0 +1,80 @@
+## @file
+# Serial driver for standard UARTS on a SIO chip or PCI/PCIE card.
+#
+# Produces the Serial I/O protocol for standard UARTS using Super I/O or PCI I/O.
+# This version is used shortly after DXE Core is invoked
+#
+# Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = PciSioSerialDxeEarly
+  MODULE_UNI_FILE                = PciSioSerialDxe.uni
+  FILE_GUID                      = 8BCC425E-585F-4E66-ADA5-FEA9A635F911
+  MODULE_TYPE                    = DXE_DRIVER
+  VERSION_STRING                 = 1.0
+  ENTRY_POINT                    = InitializePciSioSerial
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+#  VALID_ARCHITECTURES           = IA32 X64 EBC
+#
+#  DRIVER_BINDING                =  gSerialControllerDriver
+#  COMPONENT_NAME                =  gPciSioSerialComponentName
+#  COMPONENT_NAME2               =  gPciSioSerialComponentName2
+#
+
+[Sources]
+  ComponentName.c
+  SerialIo.c
+  SerialIoCommon.c
+  Serial.h
+  Serial.c
+
+[Packages]
+  MdePkg/MdePkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+
+[LibraryClasses]
+  PcdLib
+  ReportStatusCodeLib
+  UefiBootServicesTableLib
+  MemoryAllocationLib
+  BaseMemoryLib
+  DevicePathLib
+  UefiLib
+  UefiDriverEntryPoint
+  DebugLib
+  IoLib
+
+[Guids]
+  gEfiUartDevicePathGuid                        ## SOMETIMES_CONSUMES   ## GUID
+
+[Protocols]
+  gEfiSioProtocolGuid                           ## TO_START
+  gEfiDevicePathProtocolGuid                    ## TO_START
+  gEfiPciIoProtocolGuid                         ## TO_START
+  gEfiSerialIoProtocolGuid                      ## BY_START
+  gEfiDevicePathProtocolGuid                    ## BY_START
+
+[FeaturePcd]
+  gEfiMdeModulePkgTokenSpaceGuid.PcdSerialUseHalfHandshake|FALSE   ## CONSUMES
+
+[Pcd]
+  gEfiMdePkgTokenSpaceGuid.PcdUartDefaultBaudRate|115200    ## CONSUMES
+  gEfiMdePkgTokenSpaceGuid.PcdUartDefaultDataBits|8         ## CONSUMES
+  gEfiMdePkgTokenSpaceGuid.PcdUartDefaultParity|1           ## CONSUMES
+  gEfiMdePkgTokenSpaceGuid.PcdUartDefaultStopBits|1         ## CONSUMES
+  gEfiMdeModulePkgTokenSpaceGuid.PcdSerialClockRate|1843200 ## CONSUMES
+  gEfiMdeModulePkgTokenSpaceGuid.PcdPciSerialParameters     ## CONSUMES
+
+[UserExtensions.TianoCore."ExtraFiles"]
+  PciSioSerialDxeExtra.uni
+
+[Depex]
+  TRUE
-- 
2.34.1

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