1. 根目录:
2. arch
3. cris
4. include
5. asm
6. serial.h

#ifndef _ASM_SERIAL_H
#define _ASM_SERIAL_H

/*
 * This assumes you have a 1.8432 MHz clock for your UART.
 */
#define BASE_BAUD (1843200 / 16)

#endif /* _ASM_SERIAL_H */