Signed-off-by: Vineet Gupta <vgupta@xxxxxxxxxxxx> --- arch/arc/include/asm/serial.h | 25 +++++++++++++++++++++++++ 1 files changed, 25 insertions(+), 0 deletions(-) create mode 100644 arch/arc/include/asm/serial.h diff --git a/arch/arc/include/asm/serial.h b/arch/arc/include/asm/serial.h new file mode 100644 index 0000000..4dff5a1 --- /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 <asm/clk.h> + +#define BASE_BAUD (arc_get_core_freq() / 16) + +#endif /* _ASM_ARC_SERIAL_H */ -- 1.7.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
