mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-06 02:01:53 +02:00
b06573b702
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@12863 3c298f89-4303-0410-b956-a3cf2f4a3e73
65 lines
1.8 KiB
C
65 lines
1.8 KiB
C
/*
|
|
* ADM5120 UART definitions
|
|
*
|
|
* This header file defines the hardware registers of the ADM5120 SoC
|
|
* built-in UARTs.
|
|
*
|
|
* Copyright (C) 2007 Gabor Juhos <juhosg@openwrt.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License version 2 as published
|
|
* by the Free Software Foundation.
|
|
*
|
|
*/
|
|
|
|
#ifndef _MACH_ADM5120_UART_H
|
|
#define _MACH_ADM5120_UART_H
|
|
|
|
#define UART_BAUDDIV(clk, baud) ((clk/(16 * (baud)))-1)
|
|
|
|
#define UART_REG_DATA 0x00
|
|
#define UART_REG_RSR 0x04
|
|
#define UART_REG_ECR UART_REG_RSR
|
|
#define UART_REG_LCRH 0x08
|
|
#define UART_REG_LCRM 0x0C
|
|
#define UART_REG_LCRL 0x10
|
|
#define UART_REG_CTRL 0x14
|
|
#define UART_REG_FLAG 0x18
|
|
|
|
/* Receive Status Register bits */
|
|
#define UART_RSR_FE ( 1 << 0 )
|
|
#define UART_RSR_PE ( 1 << 1 )
|
|
#define UART_RSR_BE ( 1 << 2 )
|
|
#define UART_RSR_OE ( 1 << 3 )
|
|
#define UART_RSR_ERR ( UART_RSR_FE | UART_RSR_PE | UART_RSR_BE )
|
|
|
|
#define UART_ECR_ALL 0xFF
|
|
|
|
/* Line Control High register bits */
|
|
#define UART_LCRH_BRK ( 1 << 0 ) /* send break */
|
|
#define UART_LCRH_PEN ( 1 << 1 ) /* parity enable */
|
|
#define UART_LCRH_EPS ( 1 << 2 ) /* even parity select */
|
|
#define UART_LCRH_STP1 ( 0 << 3 ) /* one stop bits select */
|
|
#define UART_LCRH_STP2 ( 1 << 3 ) /* two stop bits select */
|
|
#define UART_LCRH_FEN ( 1 << 4 ) /* FIFO enable */
|
|
|
|
#define UART_LCRH_WLEN5 ( 0 << 5 )
|
|
#define UART_LCRH_WLEN6 ( 1 << 5 )
|
|
#define UART_LCRH_WLEN7 ( 2 << 5 )
|
|
#define UART_LCRH_WLEN8 ( 3 << 5 )
|
|
|
|
/* Control register bits */
|
|
#define UART_CTRL_EN ( 1 << 0 )
|
|
|
|
/* Flag register bits */
|
|
#define UART_FLAG_CTS ( 1 << 0 )
|
|
#define UART_FLAG_DSR ( 1 << 1 )
|
|
#define UART_FLAG_DCD ( 1 << 2 )
|
|
#define UART_FLAG_BUSY ( 1 << 3 )
|
|
#define UART_FLAG_RXFE ( 1 << 4 )
|
|
#define UART_FLAG_TXFF ( 1 << 5 )
|
|
#define UART_FLAG_RXFF ( 1 << 6 )
|
|
#define UART_FLAG_TXFE ( 1 << 7 )
|
|
|
|
#endif /* _MACH_ADM5120_UART_H */
|