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