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