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/*++
Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
Portions copyright (c) 2009, Hewlett-Packard Company. All rights reserved.<BR>
Portions copyright (c) 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.
--*/
#ifndef __ARM_EB_UART_H__
#define __ARM_EB_UART_H__
#define SERIAL_PORT_MAX_TIMEOUT 100000000 // 100 seconds
// EB constants
#define EB_UART1_BASE 0x10009000
// 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
// If the required baud rate is 115200 and UARTCLK = 24MHz then:
// Baud Rate Divisor = (24×10^6)/(16×115200) = 13.020833
// This means BRDI = 13 and BRDF = 0.020833
// Therefore, fractional part, m = integer(0.020833×64) = integer(1.33331) = 1
// Generated baud rate divider = 13+1/64 = 13.015625
// Generated baud rate = (24×10^6)/(16×13.015625) = 115246.098
// Error = (115246.098-115200)/115200 × 100 = 0.04%
#define UART_115200_IDIV 13
#define UART_115200_FDIV 1
// add more baud rates here as needed
// 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
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