[mirror_edk2.git] / ArmPlatformPkg / Include / Drivers / PL011Uart.h

/** @file
*
*  Copyright (c) 2011, ARM 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.             
*
**/

#ifndef __PL011_UART_H__
#define __PL011_UART_H__

#define SERIAL_PORT_MAX_TIMEOUT            100000000    // 100 seconds

// PL011 Registers
#define UARTDR          0x000
#define UARTRSR         0x004
#define UARTECR         0x004
#define UARTFR          0x018
#define UARTILPR        0x020
#define UARTIBRD        0x024
#define UARTFBRD        0x028
#define UARTLCR_H       0x02C
#define UARTCR          0x030
#define UARTIFLS        0x034
#define UARTIMSC        0x038
#define UARTRIS         0x03C
#define UARTMIS         0x040
#define UARTICR         0x044
#define UARTDMACR       0x048

#define UART_115200_IDIV      13      // Integer Part
#define UART_115200_FDIV      1       // Fractional Part
#define UART_38400_IDIV       39
#define UART_38400_FDIV       5
#define UART_19200_IDIV       12
#define UART_19200_FDIV       37

// data status bits
#define UART_DATA_ERROR_MASK      0x0F00

// status reg bits
#define UART_STATUS_ERROR_MASK    0x0F

// flag reg bits
#define UART_TX_EMPTY_FLAG_MASK   0x80
#define UART_RX_FULL_FLAG_MASK    0x40
#define UART_TX_FULL_FLAG_MASK    0x20
#define UART_RX_EMPTY_FLAG_MASK   0x10
#define UART_BUSY_FLAG_MASK       0x08

// control reg bits
#define UART_CTSEN_CONTROL_MASK   0x8000
#define UART_RTSEN_CONTROL_MASK   0x4000
#define UART_RTS_CONTROL_MASK     0x0800
#define UART_DTR_CONTROL_MASK     0x0400

#endif
Commit	Line	Data
1d5d0ae9	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