Add ArmPlatformPkg from ARM Ltd. patch.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11291 6f19259b-4bc3-4df7-8a09-765794883524

2 files changed, 165 insertions, 0 deletions

diff --git a/ArmPlatformPkg/Library/PL011SerialPortLib/PL011SerialPortLib.c b/ArmPlatformPkg/Library/PL011SerialPortLib/PL011SerialPortLib.c
new file mode 100644
index 0000000000..54ea28a769
--- /dev/null
+++ b/ArmPlatformPkg/Library/PL011SerialPortLib/PL011SerialPortLib.c
@@ -0,0 +1,133 @@
+/** @file
+  Serial I/O Port library functions with no library constructor/destructor
+
+
+  Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>
+  
+  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 <Include/Uefi.h>
+#include <Library/SerialPortLib.h>
+#include <Library/IoLib.h>
+#include <Drivers/PL011Uart.h>
+#include <ArmPlatform.h>
+
+/*
+
+  Programmed hardware of Serial port.
+
+  @return    Always return EFI_UNSUPPORTED.
+
+**/
+RETURN_STATUS
+EFIAPI
+SerialPortInitialize (
+  VOID
+  )
+{
+	if (PL011_CONSOLE_UART_SPEED == 115200) {
+		// Initialize baud rate generator
+		MmioWrite32 (PL011_CONSOLE_UART_BASE + UARTIBRD, UART_115200_IDIV);
+		MmioWrite32 (PL011_CONSOLE_UART_BASE + UARTFBRD, UART_115200_FDIV);
+	} else if (PL011_CONSOLE_UART_SPEED == 38400) {
+		// Initialize baud rate generator
+		MmioWrite32 (PL011_CONSOLE_UART_BASE + UARTIBRD, UART_38400_IDIV);
+		MmioWrite32 (PL011_CONSOLE_UART_BASE + UARTFBRD, UART_38400_FDIV);
+	} else if (PL011_CONSOLE_UART_SPEED == 19200) {
+		// Initialize baud rate generator
+		MmioWrite32 (PL011_CONSOLE_UART_BASE + UARTIBRD, UART_19200_IDIV);
+		MmioWrite32 (PL011_CONSOLE_UART_BASE + UARTFBRD, UART_19200_FDIV);
+	} else {
+		return EFI_INVALID_PARAMETER;
+	}
+
+  // No parity, 1 stop, no fifo, 8 data bits
+  MmioWrite32 (PL011_CONSOLE_UART_BASE + UARTLCR_H, 0x60);
+
+  // Clear any pending errors
+  MmioWrite32 (PL011_CONSOLE_UART_BASE + UARTECR, 0);
+
+  // enable tx, rx, and uart overall
+  MmioWrite32 (PL011_CONSOLE_UART_BASE + UARTCR, 0x301);
+
+  return EFI_SUCCESS;
+}
+
+/**
+  Write data to serial device.
+
+  @param  Buffer           Point of data buffer which need to be writed.
+  @param  NumberOfBytes    Number of output bytes which are cached in Buffer.
+
+  @retval 0                Write data failed.
+  @retval !0               Actual number of bytes writed to serial device.
+
+**/
+UINTN
+EFIAPI
+SerialPortWrite (
+  IN UINT8     *Buffer,
+  IN UINTN     NumberOfBytes
+)
+{
+	UINTN  Count;
+
+	for (Count = 0; Count < NumberOfBytes; Count++, Buffer++) {
+		while ((MmioRead32 (PL011_CONSOLE_UART_BASE + UARTFR) & UART_TX_EMPTY_FLAG_MASK) == 0);
+		MmioWrite8 (PL011_CONSOLE_UART_BASE + UARTDR, *Buffer);
+	}
+
+	return NumberOfBytes;
+}
+
+/**
+  Read data from serial device and save the datas in buffer.
+
+  @param  Buffer           Point of data buffer which need to be writed.
+  @param  NumberOfBytes    Number of output bytes which are cached in Buffer.
+
+  @retval 0                Read data failed.
+  @retval !0               Aactual number of bytes read from serial device.
+
+**/
+UINTN
+EFIAPI
+SerialPortRead (
+  OUT UINT8     *Buffer,
+  IN  UINTN     NumberOfBytes
+)
+{
+  UINTN   Count;
+
+	for (Count = 0; Count < NumberOfBytes; Count++, Buffer++) {
+		while ((MmioRead32 (PL011_CONSOLE_UART_BASE + UARTFR) & UART_RX_EMPTY_FLAG_MASK) != 0);
+		*Buffer = MmioRead8 (PL011_CONSOLE_UART_BASE + UARTDR);
+	}
+
+	return NumberOfBytes;
+}
+
+/**
+  Check to see if any data is avaiable to be read from the debug device.
+
+  @retval EFI_SUCCESS       At least one byte of data is avaiable to be read
+  @retval EFI_NOT_READY     No data is avaiable to be read
+  @retval EFI_DEVICE_ERROR  The serial device is not functioning properly
+
+**/
+BOOLEAN
+EFIAPI
+SerialPortPoll (
+  VOID
+  )
+{
+  return ((MmioRead32 (PL011_CONSOLE_UART_BASE + UARTFR) & UART_RX_EMPTY_FLAG_MASK) == 0);
+}
diff --git a/ArmPlatformPkg/Library/PL011SerialPortLib/PL011SerialPortLib.inf b/ArmPlatformPkg/Library/PL011SerialPortLib/PL011SerialPortLib.inf
new file mode 100644
index 0000000000..b9d86946c4
--- /dev/null
+++ b/ArmPlatformPkg/Library/PL011SerialPortLib/PL011SerialPortLib.inf
@@ -0,0 +1,32 @@
+#/** @file
+#  
+#  Component discription file for NorFlashDxe module
+#  
+#  Copyright (c) 2010, ARM Ltd. All rights reserved.<BR>
+#  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                    = 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]
+  IoLib
+
+[Packages]
+  MdePkg/MdePkg.dec
+  ArmPlatformPkg/ArmPlatformPkg.dec