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/*
* Carsten Langgaard, carstenl@mips.com
* Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
*
* ########################################################################
*
* This program is free software; you can distribute it and/or modify it
* under the terms of the GNU General Public License (Version 2) as
* published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
*
* ########################################################################
*
* Register definitions for the UART part of the Philips SAA9730 chip.
*
*/
#ifndef SAA9730_UART_H
#define SAA9730_UART_H
/* The SAA9730 UART register map, as seen via the PCI bus */
#define SAA9730_UART_REGS_ADDR 0x21800
struct uart_saa9730_regmap {
volatile unsigned char Thr_Rbr;
volatile unsigned char Ier;
volatile unsigned char Iir_Fcr;
volatile unsigned char Lcr;
volatile unsigned char Mcr;
volatile unsigned char Lsr;
volatile unsigned char Msr;
volatile unsigned char Scr;
volatile unsigned char BaudDivLsb;
volatile unsigned char BaudDivMsb;
volatile unsigned char Junk0;
volatile unsigned char Junk1;
volatile unsigned int Config; /* 0x2180c */
volatile unsigned int TxStart; /* 0x21810 */
volatile unsigned int TxLength; /* 0x21814 */
volatile unsigned int TxCounter; /* 0x21818 */
volatile unsigned int RxStart; /* 0x2181c */
volatile unsigned int RxLength; /* 0x21820 */
volatile unsigned int RxCounter; /* 0x21824 */
};
typedef volatile struct uart_saa9730_regmap t_uart_saa9730_regmap;
/*
* Only a subset of the UART control bits are defined here,
* enough to make the serial debug port work.
*/
#define SAA9730_LCR_DATA8 0x03
#define SAA9730_MCR_DTR 0x01
#define SAA9730_MCR_RTS 0x02
#define SAA9730_LSR_DR 0x01
#define SAA9730_LSR_THRE 0x20
#endif /* !(SAA9730_UART_H) */
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