Use ArmPlatformPkg/PL011SerialPortLib with some changes:
1. add Get clock API to get the UART clock from ArmPlatformLib
2. remove SerialPortInitalize functionality
This is same as being done in Silicon/NXP/Library/BaseSerialPortLib16550.
Signed-off-by: Pankaj Bansal <pankaj.ban...@nxp.com>
---
.../PL011SerialPortLib/PL011SerialPortLib.c | 229 ++++++++++++++++++
.../PL011SerialPortLib/PL011SerialPortLib.inf | 42 ++++
Silicon/NXP/NxpQoriqLs.dsc.inc | 1 +
3 files changed, 272 insertions(+)
create mode 100644 Silicon/NXP/Library/PL011SerialPortLib/PL011SerialPortLib.c
create mode 100644
Silicon/NXP/Library/PL011SerialPortLib/PL011SerialPortLib.inf
diff --git a/Silicon/NXP/Library/PL011SerialPortLib/PL011SerialPortLib.c
b/Silicon/NXP/Library/PL011SerialPortLib/PL011SerialPortLib.c
new file mode 100644
index 0000000000..35cfe8e324
--- /dev/null
+++ b/Silicon/NXP/Library/PL011SerialPortLib/PL011SerialPortLib.c
@@ -0,0 +1,229 @@
+/** @file
+ Serial I/O Port library functions with no library constructor/destructor
+
+ Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>
+ Copyright (c) 2012 - 2016, ARM Ltd. All rights reserved.<BR>
+ Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+ Copyright 2020 NXP
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Base.h>
+
+#include <Library/IoLib.h>
+#include <Library/PcdLib.h>
+#include <Library/PL011UartClockLib.h>
+#include <Library/PL011UartLib.h>
+#include <Library/SerialPortLib.h>
+#include <Ppi/NxpPlatformGetClock.h>
+
+extern NXP_PLATFORM_GET_CLOCK_PPI mPlatformGetClockPpi;
+
+/** Initialise the serial device hardware with default settings.
+
+ @retval RETURN_SUCCESS The serial device was initialised.
+ @retval RETURN_INVALID_PARAMETER One or more of the default settings
+ has an unsupported value.
+ **/
+RETURN_STATUS
+EFIAPI
+SerialPortInitialize (
+ VOID
+ )
+{
+ return EFI_SUCCESS;
+}
+
+/**
+ Write data to serial device.
+
+ @param Buffer Point of data buffer which need to be written.
+ @param NumberOfBytes Number of output bytes which are cached in Buffer.
+
+ @retval 0 Write data failed.
+ @retval !0 Actual number of bytes written to serial device.
+
+**/
+UINTN
+EFIAPI
+SerialPortWrite (
+ IN UINT8 *Buffer,
+ IN UINTN NumberOfBytes
+ )
+{
+ return PL011UartWrite ((UINTN)PcdGet64 (PcdSerialRegisterBase), Buffer,
NumberOfBytes);
+}
+
+/**
+ Read data from serial device and save the data in buffer.
+
+ @param Buffer Point of data buffer which need to be written.
+ @param NumberOfBytes Number of output bytes which are cached in Buffer.
+
+ @retval 0 Read data failed.
+ @retval !0 Actual number of bytes read from serial device.
+
+**/
+UINTN
+EFIAPI
+SerialPortRead (
+ OUT UINT8 *Buffer,
+ IN UINTN NumberOfBytes
+)
+{
+ return PL011UartRead ((UINTN)PcdGet64 (PcdSerialRegisterBase), Buffer,
NumberOfBytes);
+}
+
+/**
+ Check to see if any data is available to be read from the debug device.
+
+ @retval TRUE At least one byte of data is available to be read
+ @retval FALSE No data is available to be read
+
+**/
+BOOLEAN
+EFIAPI
+SerialPortPoll (
+ VOID
+ )
+{
+ return PL011UartPoll ((UINTN)PcdGet64 (PcdSerialRegisterBase));
+}
+/**
+ Set new attributes to PL011.
+
+ @param BaudRate The baud rate of the serial device. If the
+ baud rate is not supported, the speed will
+ be reduced down to the nearest supported one
+ and the variable's value will be updated
+ accordingly.
+ @param ReceiveFifoDepth The number of characters the device will
+ buffer on input. If the specified value is
+ not supported, the variable's value will
+ be reduced down to the nearest supported one.
+ @param Timeout If applicable, the number of microseconds the
+ device will wait before timing out a Read or
+ a Write operation.
+ @param Parity If applicable, this is the EFI_PARITY_TYPE
+ that is computed or checked as each character
+ is transmitted or received. If the device
+ does not support parity, the value is the
+ default parity value.
+ @param DataBits The number of data bits in each character
+ @param StopBits If applicable, the EFI_STOP_BITS_TYPE number
+ of stop bits per character. If the device
+ does not support stop bits, the value is the
+ default stop bit value.
+
+ @retval EFI_SUCCESS All attributes were set correctly.
+ @retval EFI_INVALID_PARAMETERS One or more attributes has an unsupported
+ value.
+ @retval RETURN_DEVICE_ERROR The serial device is not functioning
correctly.
+
+**/
+RETURN_STATUS
+EFIAPI
+SerialPortSetAttributes (
+ IN OUT UINT64 *BaudRate,
+ IN OUT UINT32 *ReceiveFifoDepth,
+ IN OUT UINT32 *Timeout,
+ IN OUT EFI_PARITY_TYPE *Parity,
+ IN OUT UINT8 *DataBits,
+ IN OUT EFI_STOP_BITS_TYPE *StopBits
+ )
+{
+ UINT64 SerialClock;
+
+ SerialClock = mPlatformGetClockPpi.PlatformGetClock (NXP_UART_CLOCK, 0);
+ if (SerialClock == 0) {
+ return EFI_DEVICE_ERROR;
+ }
+
+ return PL011UartInitializePort (
+ (UINTN)PcdGet64 (PcdSerialRegisterBase),
+ SerialClock,
+ BaudRate,
+ ReceiveFifoDepth,
+ Parity,
+ DataBits,
+ StopBits
+ );
+}
+
+/**
+
+ Assert or deassert the control signals on a serial port.
+ The following control signals are set according their bit settings :
+ . Request to Send
+ . Data Terminal Ready
+
+ @param[in] Control The following bits are taken into account :
+ . EFI_SERIAL_REQUEST_TO_SEND : assert/deassert the
+ "Request To Send" control signal if this bit is
+ equal to one/zero.
+ . EFI_SERIAL_DATA_TERMINAL_READY : assert/deassert
+ the "Data Terminal Ready" control signal if this
+ bit is equal to one/zero.
+ . EFI_SERIAL_HARDWARE_LOOPBACK_ENABLE : enable/disable
+ the hardware loopback if this bit is equal to
+ one/zero.
+ . EFI_SERIAL_SOFTWARE_LOOPBACK_ENABLE : not supported.
+ . EFI_SERIAL_HARDWARE_FLOW_CONTROL_ENABLE : enable/
+ disable the hardware flow control based on CTS (Clear
+ To Send) and RTS (Ready To Send) control signals.
+
+ @retval RETURN_SUCCESS The new control bits were set on the device.
+ @retval RETURN_UNSUPPORTED The device does not support this operation.
+
+**/
+RETURN_STATUS
+EFIAPI
+SerialPortSetControl (
+ IN UINT32 Control
+ )
+{
+ return PL011UartSetControl ((UINTN)PcdGet64 (PcdSerialRegisterBase),
Control);
+}
+
+/**
+
+ Retrieve the status of the control bits on a serial device.
+
+ @param[out] Control Status of the control bits on a serial device :
+
+ . EFI_SERIAL_DATA_CLEAR_TO_SEND,
+ EFI_SERIAL_DATA_SET_READY,
+ EFI_SERIAL_RING_INDICATE,
+ EFI_SERIAL_CARRIER_DETECT,
+ EFI_SERIAL_REQUEST_TO_SEND,
+ EFI_SERIAL_DATA_TERMINAL_READY
+ are all related to the DTE (Data Terminal Equipment)
+ and DCE (Data Communication Equipment) modes of
+ operation of the serial device.
+ . EFI_SERIAL_INPUT_BUFFER_EMPTY : equal to one if the
+ receive buffer is empty, 0 otherwise.
+ . EFI_SERIAL_OUTPUT_BUFFER_EMPTY : equal to one if the
+ transmit buffer is empty, 0 otherwise.
+ . EFI_SERIAL_HARDWARE_LOOPBACK_ENABLE : equal to one if
+ the hardware loopback is enabled (the output feeds
+ the receive buffer), 0 otherwise.
+ . EFI_SERIAL_SOFTWARE_LOOPBACK_ENABLE : equal to one
+ if a loopback is accomplished by software, else 0.
+ . EFI_SERIAL_HARDWARE_FLOW_CONTROL_ENABLE : equal to
+ one if the hardware flow control based on CTS (Clear
+ To Send) and RTS (Ready To Send) control signals is
+ enabled, 0 otherwise.
+
+ @retval RETURN_SUCCESS The control bits were read from the device.
+
+**/
+RETURN_STATUS
+EFIAPI
+SerialPortGetControl (
+ OUT UINT32 *Control
+ )
+{
+ return PL011UartGetControl ((UINTN)PcdGet64 (PcdSerialRegisterBase),
Control);
+}
diff --git a/Silicon/NXP/Library/PL011SerialPortLib/PL011SerialPortLib.inf
b/Silicon/NXP/Library/PL011SerialPortLib/PL011SerialPortLib.inf
new file mode 100644
index 0000000000..29f234027f
--- /dev/null
+++ b/Silicon/NXP/Library/PL011SerialPortLib/PL011SerialPortLib.inf
@@ -0,0 +1,42 @@
+#/** @file
+#
+# Component description file for PL011SerialPortLib module
+#
+# Copyright (c) 2011-2016, ARM Ltd. All rights reserved.<BR>
+# Copyright 2020 NXP
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+#**/
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = PL011SerialPortLib
+ FILE_GUID = 8ecefc8f-a2c4-4091-b80f-20f7aeb0567f
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = SerialPortLib
+
+[Sources.common]
+ PL011SerialPortLib.c
+
+[LibraryClasses]
+ PL011UartLib
+ PcdLib
+ ArmPlatformLib
+
+[Packages]
+ EmbeddedPkg/EmbeddedPkg.dec
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+ ArmPlatformPkg/ArmPlatformPkg.dec
+ Silicon/NXP/NxpQoriqLs.dec
+
+[Pcd]
+ gEfiMdeModulePkgTokenSpaceGuid.PcdSerialRegisterBase
+
+[FixedPcd]
+ gEfiMdePkgTokenSpaceGuid.PcdUartDefaultBaudRate
+ gEfiMdePkgTokenSpaceGuid.PcdUartDefaultDataBits
+ gEfiMdePkgTokenSpaceGuid.PcdUartDefaultParity
+ gEfiMdePkgTokenSpaceGuid.PcdUartDefaultStopBits
diff --git a/Silicon/NXP/NxpQoriqLs.dsc.inc b/Silicon/NXP/NxpQoriqLs.dsc.inc
index 9922686304..2ab6ee1920 100644
--- a/Silicon/NXP/NxpQoriqLs.dsc.inc
+++ b/Silicon/NXP/NxpQoriqLs.dsc.inc
@@ -100,6 +100,7 @@
IoAccessLib|Silicon/NXP/Library/IoAccessLib/IoAccessLib.inf
PlatformPeiLib|Silicon/NXP/Library/PlatformPeiLib/PlatformPeiLib.inf
MemoryInitPeiLib|Silicon/NXP/Library/MemoryInitPeiLib/MemoryInitPeiLib.inf
+ PL011UartLib|ArmPlatformPkg/Library/PL011UartLib/PL011UartLib.inf
[LibraryClasses.common.SEC]
PcdLib|MdePkg/Library/BasePcdLibNull/BasePcdLibNull.inf
--
2.17.1
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