2013-01-23 17:24:17 +05:30
|
|
|
/*
|
|
|
|
|
* Copyright (C) 2012 Synopsys, Inc. (www.synopsys.com)
|
|
|
|
|
*
|
|
|
|
|
* This program is free software; you can redistribute it and/or modify
|
|
|
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
|
|
|
* published by the Free Software Foundation.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#ifndef _ASM_ARC_SERIAL_H
|
|
|
|
|
#define _ASM_ARC_SERIAL_H
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* early-8250 requires BASE_BAUD to be defined and includes this header.
|
|
|
|
|
* We put in a typical value:
|
|
|
|
|
* (core clk / 16) - i.e. UART samples 16 times per sec.
|
|
|
|
|
* Athough in multi-platform-image this might not work, specially if the
|
|
|
|
|
* clk driving the UART is different.
|
|
|
|
|
* We can't use DeviceTree as this is typically for early serial.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#include <asm/clk.h>
|
|
|
|
|
|
|
|
|
|
#define BASE_BAUD (arc_get_core_freq() / 16)
|
|
|
|
|
|
2013-04-12 08:40:59 +02:00
|
|
|
/*
|
|
|
|
|
* This is definitely going to break early 8250 consoles on multi-platform
|
|
|
|
|
* images but hey, it won't add any code complexity for a debug feature of
|
|
|
|
|
* one broken driver.
|
|
|
|
|
*/
|
|
|
|
|
#ifdef CONFIG_ARC_PLAT_TB10X
|
|
|
|
|
#undef BASE_BAUD
|
|
|
|
|
#define BASE_BAUD (arc_get_core_freq() / 16 / 3)
|
|
|
|
|
#endif
|
|
|
|
|
|
2013-01-23 17:24:17 +05:30
|
|
|
#endif /* _ASM_ARC_SERIAL_H */
|
