50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
/*
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* Copyright Codito Technologies (www.codito.com)
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*
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* include/asm-arc/serial.h
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*
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* Copyright (C)
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*
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* This program is free software; you can redistribute it and/or modify
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* it 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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* Authors : Sandeep Patil (sandeep.patil@codito.com)
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* Pradeep Sawlani (pradeep.sawlani@codito.com)
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*/
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#ifndef _ASM_ARC_SERIAL_H
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#define _ASM_ARC_SERIAL_H
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#include <config.h>
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typedef volatile struct {
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volatile int id0;
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volatile int id1;
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volatile int id2;
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volatile int id3;
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volatile int data;
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volatile int status;
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volatile int baudl;
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volatile int baudh;
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} aa3_uart __attribute__((packed));
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/*
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* Define the number of ports supported and their irqs.
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*/
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#define NR_PORTS 1
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#define UART_RXENB 0x04
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#define UART_RXEMPTY 0x20
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#define UART_FRAME_ERR 0x01
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#define UART_OVERFLOW_ERR 0x02
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#define UART_TXENB 0x40
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#define UART_TXEMPTY 0x80
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/* UART control registers */
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#define ARC_UART_CREG_DATATX UART_BASEADDR + 0x4
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#define ARC_UART_CREG_DATARX UART_BASEADDR + 0x4
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#define ARC_UART_CREG_STATUS UART_BASEADDR + 0x5
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#endif /* _ASM_ARC_SERIAL_H */
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