ArmPlatformPkg/Include/Drivers/PL011Uart.h

   1 /** @file
   2 *
   3 *  Copyright (c) 2011, ARM Limited. All rights reserved.
   4 *
   5 *  This program and the accompanying materials
   6 *  are licensed and made available under the terms and conditions of the BSD License
   7 *  which accompanies this distribution.  The full text of the license may be found at
   8 *  http://opensource.org/licenses/bsd-license.php
   9 *
  10 *  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11 *  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12 *
  13 **/
  14
  15 #ifndef __PL011_UART_H__
  16 #define __PL011_UART_H__
  17
  18 #define SERIAL_PORT_MAX_TIMEOUT            100000000    // 100 seconds
  19
  20 // PL011 Registers
  21 #define UARTDR          0x000
  22 #define UARTRSR         0x004
  23 #define UARTECR         0x004
  24 #define UARTFR          0x018
  25 #define UARTILPR        0x020
  26 #define UARTIBRD        0x024
  27 #define UARTFBRD        0x028
  28 #define UARTLCR_H       0x02C
  29 #define UARTCR          0x030
  30 #define UARTIFLS        0x034
  31 #define UARTIMSC        0x038
  32 #define UARTRIS         0x03C
  33 #define UARTMIS         0x040
  34 #define UARTICR         0x044
  35 #define UARTDMACR       0x048
  36
  37 #define UART_115200_IDIV      13      // Integer Part
  38 #define UART_115200_FDIV      1       // Fractional Part
  39 #define UART_38400_IDIV       39
  40 #define UART_38400_FDIV       5
  41 #define UART_19200_IDIV       12
  42 #define UART_19200_FDIV       37
  43
  44 // data status bits
  45 #define UART_DATA_ERROR_MASK      0x0F00
  46
  47 // status reg bits
  48 #define UART_STATUS_ERROR_MASK    0x0F
  49
  50 // flag reg bits
  51 #define UART_TX_EMPTY_FLAG_MASK   0x80
  52 #define UART_RX_FULL_FLAG_MASK    0x40
  53 #define UART_TX_FULL_FLAG_MASK    0x20
  54 #define UART_RX_EMPTY_FLAG_MASK   0x10
  55 #define UART_BUSY_FLAG_MASK       0x08
  56
  57 // control reg bits
  58 #define UART_CTSEN_CONTROL_MASK   0x8000
  59 #define UART_RTSEN_CONTROL_MASK   0x4000
  60 #define UART_RTS_CONTROL_MASK     0x0800
  61 #define UART_DTR_CONTROL_MASK     0x0400
  62
  63 #endif