From: Vineet Gupta Date: Wed, 23 Jan 2013 11:54:17 +0000 (+0530) Subject: ARC: Provide a default serial.h for uart drivers needing BASE_BAUD X-Git-Tag: v3.9-rc1~25^2~12 X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=0208c96a9df98999dd150430b37983e9a003ea0a;p=~emulex%2Finfiniband.git ARC: Provide a default serial.h for uart drivers needing BASE_BAUD Signed-off-by: Vineet Gupta --- diff --git a/arch/arc/include/asm/serial.h b/arch/arc/include/asm/serial.h new file mode 100644 index 00000000000..4dff5a1e412 --- /dev/null +++ b/arch/arc/include/asm/serial.h @@ -0,0 +1,25 @@ +/* + * 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 + +#define BASE_BAUD (arc_get_core_freq() / 16) + +#endif /* _ASM_ARC_SERIAL_H */