diff options
Diffstat (limited to 'include/asm-mips64/mips-boards/saa9730_uart.h')
| -rw-r--r-- | include/asm-mips64/mips-boards/saa9730_uart.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/include/asm-mips64/mips-boards/saa9730_uart.h b/include/asm-mips64/mips-boards/saa9730_uart.h new file mode 100644 index 000000000..c913143d5 --- /dev/null +++ b/include/asm-mips64/mips-boards/saa9730_uart.h @@ -0,0 +1,69 @@ +/* + * 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) */ |