kernel/arch/xtensa/platforms/xt2000/include/platform/serial.h
2024-07-22 17:22:30 +08:00

29 lines
762 B
C

/*
* platform/serial.h
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2001 Tensilica Inc.
*/
#ifndef _XTENSA_XT2000_SERIAL_H
#define _XTENSA_XT2000_SERIAL_H
#include <asm/core.h>
#include <asm/io.h>
/* National-Semi PC16552D DUART: */
#define DUART16552_1_INTNUM XCHAL_EXTINT4_NUM
#define DUART16552_2_INTNUM XCHAL_EXTINT5_NUM
#define DUART16552_1_ADDR IOADDR(0x0d050020) /* channel 1 */
#define DUART16552_2_ADDR IOADDR(0x0d050000) /* channel 2 */
#define DUART16552_XTAL_FREQ 18432000 /* crystal frequency in Hz */
#define BASE_BAUD ( DUART16552_XTAL_FREQ / 16 )
#endif /* _XTENSA_XT2000_SERIAL_H */