OpenCloudOS-Kernel/arch/openrisc/include/asm/serial.h

37 lines
1.1 KiB
C

/*
* OpenRISC Linux
*
* Linux architectural port borrowing liberally from similar works of
* others. All original copyrights apply as per the original source
* declaration.
*
* OpenRISC implementation:
* Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
* Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
* et al.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef __ASM_OPENRISC_SERIAL_H
#define __ASM_OPENRISC_SERIAL_H
#ifdef __KERNEL__
#include <asm/cpuinfo.h>
/* There's a generic version of this file, but it assumes a 1.8MHz UART clk...
* this, on the other hand, assumes the UART clock is tied to the system
* clock... 8250_early.c (early 8250 serial console) actually uses this, so
* it needs to be correct to get the early console working.
*/
#define BASE_BAUD (cpuinfo.clock_frequency/16)
#endif /* __KERNEL__ */
#endif /* __ASM_OPENRISC_SERIAL_H */