1/* 2 * Carsten Langgaard, carstenl@mips.com 3 * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved. 4 * 5 * ######################################################################## 6 * 7 * This program is free software; you can distribute it and/or modify it 8 * under the terms of the GNU General Public License (Version 2) as 9 * published by the Free Software Foundation. 10 * 11 * This program is distributed in the hope it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * for more details. 15 * 16 * You should have received a copy of the GNU General Public License along 17 * with this program; if not, write to the Free Software Foundation, Inc., 18 * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. 19 * 20 * ######################################################################## 21 * 22 * Register definitions for the UART part of the Philips SAA9730 chip. 23 * 24 */ 25 26#ifndef SAA9730_UART_H 27#define SAA9730_UART_H 28 29/* The SAA9730 UART register map, as seen via the PCI bus */ 30 31#define SAA9730_UART_REGS_ADDR 0x21800 32 33struct uart_saa9730_regmap { 34 volatile unsigned char Thr_Rbr; 35 volatile unsigned char Ier; 36 volatile unsigned char Iir_Fcr; 37 volatile unsigned char Lcr; 38 volatile unsigned char Mcr; 39 volatile unsigned char Lsr; 40 volatile unsigned char Msr; 41 volatile unsigned char Scr; 42 volatile unsigned char BaudDivLsb; 43 volatile unsigned char BaudDivMsb; 44 volatile unsigned char Junk0; 45 volatile unsigned char Junk1; 46 volatile unsigned int Config; /* 0x2180c */ 47 volatile unsigned int TxStart; /* 0x21810 */ 48 volatile unsigned int TxLength; /* 0x21814 */ 49 volatile unsigned int TxCounter; /* 0x21818 */ 50 volatile unsigned int RxStart; /* 0x2181c */ 51 volatile unsigned int RxLength; /* 0x21820 */ 52 volatile unsigned int RxCounter; /* 0x21824 */ 53}; 54typedef volatile struct uart_saa9730_regmap t_uart_saa9730_regmap; 55 56/* 57 * Only a subset of the UART control bits are defined here, 58 * enough to make the serial debug port work. 59 */ 60 61#define SAA9730_LCR_DATA8 0x03 62 63#define SAA9730_MCR_DTR 0x01 64#define SAA9730_MCR_RTS 0x02 65 66#define SAA9730_LSR_DR 0x01 67#define SAA9730_LSR_THRE 0x20 68 69#endif /* !(SAA9730_UART_H) */ 70