[PATCH edk2-platforms v4 12/31] Hisilicon/D06: Add Debug Serial Port Init Driver

[Ming Huang <ming.huang@linaro.org>]

From: Heyi Guo <heyi.guo@linaro.org>

Hi1620 have two physical PL011 serial ports on the board,
one for serial port console (described by ACPI SPCR) and
the other for standard debug port (described by ACPI DBG2).
This driver is to initialize the debug UART, not the serial
console.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ming Huang <ming.huang@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
---
 Platform/Hisilicon/D06/D06.dsc                                                               |  1 +
 Platform/Hisilicon/D06/D06.fdf                                                               |  1 +
 Silicon/Hisilicon/Hi1620/Drivers/Pl011DebugSerialPortInitDxe/Pl011DebugSerialPortInitDxe.inf | 48 +++++++++++++++
 Silicon/Hisilicon/Hi1620/Drivers/Pl011DebugSerialPortInitDxe/Pl011DebugSerialPortInitDxe.c   | 64 ++++++++++++++++++++
 4 files changed, 114 insertions(+)

diff --git a/Platform/Hisilicon/D06/D06.dsc b/Platform/Hisilicon/D06/D06.dsc
index 9ca7160dad..20d2d2a1b4 100644
--- a/Platform/Hisilicon/D06/D06.dsc
+++ b/Platform/Hisilicon/D06/D06.dsc
@@ -422,6 +422,7 @@
   # Memory test
   #
   MdeModulePkg/Universal/MemoryTest/NullMemoryTestDxe/NullMemoryTestDxe.inf
+  Silicon/Hisilicon/Hi1620/Drivers/Pl011DebugSerialPortInitDxe/Pl011DebugSerialPortInitDxe.inf
   MdeModulePkg/Universal/DisplayEngineDxe/DisplayEngineDxe.inf
   MdeModulePkg/Universal/SetupBrowserDxe/SetupBrowserDxe.inf
   MdeModulePkg/Universal/BdsDxe/BdsDxe.inf
diff --git a/Platform/Hisilicon/D06/D06.fdf b/Platform/Hisilicon/D06/D06.fdf
index 07fe096f61..8cac126ccf 100644
--- a/Platform/Hisilicon/D06/D06.fdf
+++ b/Platform/Hisilicon/D06/D06.fdf
@@ -303,6 +303,7 @@ READ_LOCK_STATUS   = TRUE
   INF MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AtaAtapiPassThru.inf
   INF MdeModulePkg/Bus/Ata/AtaBusDxe/AtaBusDxe.inf
 
+  INF Silicon/Hisilicon/Hi1620/Drivers/Pl011DebugSerialPortInitDxe/Pl011DebugSerialPortInitDxe.inf
   INF MdeModulePkg/Universal/Network/SnpDxe/SnpDxe.inf
   #
   # Build Shell from latest source code instead of prebuilt binary
diff --git a/Silicon/Hisilicon/Hi1620/Drivers/Pl011DebugSerialPortInitDxe/Pl011DebugSerialPortInitDxe.inf b/Silicon/Hisilicon/Hi1620/Drivers/Pl011DebugSerialPortInitDxe/Pl011DebugSerialPortInitDxe.inf
new file mode 100644
index 0000000000..8c91bdf0f4
--- /dev/null
+++ b/Silicon/Hisilicon/Hi1620/Drivers/Pl011DebugSerialPortInitDxe/Pl011DebugSerialPortInitDxe.inf
@@ -0,0 +1,48 @@
+#/** @file
+#
+#    Copyright (c) 2016 - 2018, Hisilicon Limited. All rights reserved.
+#    Copyright (c) 2016 - 2018, Linaro Limited. All rights reserved.
+#
+#    This program and the accompanying materials
+#    are licensed and made available under the terms and conditions of the BSD License
+#    which accompanies this distribution. The full text of the license may be found at
+#    http://opensource.org/licenses/bsd-license.php
+#
+#    THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+#    WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+#**/
+
+[Defines]
+  INF_VERSION                    = 0x0001001A
+  BASE_NAME                      = Pl011DebugSerialPortInitDxe
+  FILE_GUID                      = 16D53E86-7EA4-47bd-861F-511EA9B8ABE0
+  MODULE_TYPE                    = DXE_DRIVER
+  VERSION_STRING                 = 1.0
+  ENTRY_POINT                    = SerialPortEntry
+
+[Sources.common]
+  Pl011DebugSerialPortInitDxe.c
+
+
+[Packages]
+  ArmPlatformPkg/ArmPlatformPkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+  MdePkg/MdePkg.dec
+  Silicon/Hisilicon/HisiPkg.dec
+
+[LibraryClasses]
+  BaseLib
+  UefiDriverEntryPoint
+
+[Pcd]
+  gArmPlatformTokenSpaceGuid.PL011UartClkInHz
+  gArmPlatformTokenSpaceGuid.PcdSerialDbgRegisterBase
+  gEfiMdePkgTokenSpaceGuid.PcdUartDefaultBaudRate
+  gEfiMdePkgTokenSpaceGuid.PcdUartDefaultDataBits
+  gEfiMdePkgTokenSpaceGuid.PcdUartDefaultParity
+  gEfiMdePkgTokenSpaceGuid.PcdUartDefaultStopBits
+
+[Depex]
+  TRUE
+
diff --git a/Silicon/Hisilicon/Hi1620/Drivers/Pl011DebugSerialPortInitDxe/Pl011DebugSerialPortInitDxe.c b/Silicon/Hisilicon/Hi1620/Drivers/Pl011DebugSerialPortInitDxe/Pl011DebugSerialPortInitDxe.c
new file mode 100644
index 0000000000..8f83737327
--- /dev/null
+++ b/Silicon/Hisilicon/Hi1620/Drivers/Pl011DebugSerialPortInitDxe/Pl011DebugSerialPortInitDxe.c
@@ -0,0 +1,64 @@
+/** @file
+
+    Copyright (c) 2016 - 2018, Hisilicon Limited. All rights reserved.
+    Copyright (c) 2016 - 2018, Linaro Limited. All rights reserved.
+
+    This program and the accompanying materials
+    are licensed and made available under the terms and conditions of the BSD License
+    which accompanies this distribution. The full text of the license may be found at
+    http://opensource.org/licenses/bsd-license.php
+
+    THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+    WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <Uefi.h>
+#include <Library/BaseLib.h>
+#include <Library/DebugLib.h>
+#include <Library/PL011UartLib.h>
+#include <Library/PcdLib.h>
+#include <Library/SerialPortLib.h>
+
+RETURN_STATUS
+EFIAPI
+DebugSerialPortInitialize (
+  VOID
+  )
+{
+  UINT64              BaudRate;
+  UINT32              ReceiveFifoDepth;
+  EFI_PARITY_TYPE     Parity;
+  UINT8               DataBits;
+  EFI_STOP_BITS_TYPE  StopBits;
+
+  BaudRate = FixedPcdGet64 (PcdUartDefaultBaudRate);
+  ReceiveFifoDepth = 0;         // Use default FIFO depth
+  Parity = (EFI_PARITY_TYPE)FixedPcdGet8 (PcdUartDefaultParity);
+  DataBits = FixedPcdGet8 (PcdUartDefaultDataBits);
+  StopBits = (EFI_STOP_BITS_TYPE) FixedPcdGet8 (PcdUartDefaultStopBits);
+  return PL011UartInitializePort (
+           (UINTN)FixedPcdGet64 (PcdSerialDbgRegisterBase),
+           FixedPcdGet32 (PL011UartClkInHz),
+           &BaudRate,
+           &ReceiveFifoDepth,
+           &Parity,
+           &DataBits,
+           &StopBits
+           );
+}
+
+EFI_STATUS
+SerialPortEntry (
+  IN EFI_HANDLE         ImageHandle,
+  IN EFI_SYSTEM_TABLE   *SystemTable
+  )
+{
+  EFI_STATUS Status;
+  Status = DebugSerialPortInitialize ();
+  if (EFI_ERROR (Status)) {
+    DEBUG ((DEBUG_ERROR, "CPU1 TB serial port init ERROR: %r\n", Status));
+  }
+  return EFI_SUCCESS;
+}
+
-- 
2.18.0