release/src-rt-6.x.4708/linux/linux-2.6.36/arch/xtensa/platforms/xt2000/include/platform/serial.h

   1 /*
   2  * platform/serial.h
   3  *
   4  * This file is subject to the terms and conditions of the GNU General Public
   5  * License.  See the file "COPYING" in the main directory of this archive
   6  * for more details.
   7  *
   8  * Copyright (C) 2001 Tensilica Inc.
   9  */
  10
  11 #ifndef _XTENSA_XT2000_SERIAL_H
  12 #define _XTENSA_XT2000_SERIAL_H
  13
  14 #include <variant/core.h>
  15 #include <asm/io.h>
  16
  17 /*  National-Semi PC16552D DUART:  */
  18
  19 #define DUART16552_1_INTNUM     XCHAL_EXTINT4_NUM
  20 #define DUART16552_2_INTNUM     XCHAL_EXTINT5_NUM
  21
  22 #define DUART16552_1_ADDR       IOADDR(0x0d050020)      /* channel 1 */
  23 #define DUART16552_2_ADDR       IOADDR(0x0d050000)      /* channel 2 */
  24
  25 #define DUART16552_XTAL_FREQ    18432000        /* crystal frequency in Hz */
  26 #define BASE_BAUD ( DUART16552_XTAL_FREQ / 16 )
  27
  28 #endif /* _XTENSA_XT2000_SERIAL_H */