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/*
* 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)
/*
* 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
#endif /* _ASM_ARC_SERIAL_H */
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