From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vineet Gupta Subject: [PATCH v3 70/71] ARC: Provide a default serial.h for uart drivers needing BASE_BAUD Date: Thu, 24 Jan 2013 16:20:39 +0530 Message-ID: <1359024639-21915-26-git-send-email-vgupta@synopsys.com> References: <1359024639-21915-1-git-send-email-vgupta@synopsys.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Received: from us02smtp1.synopsys.com ([198.182.60.75]:47264 "EHLO vaxjo.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753065Ab3AXKyw (ORCPT ); Thu, 24 Jan 2013 05:54:52 -0500 In-Reply-To: <1359024639-21915-1-git-send-email-vgupta@synopsys.com> Sender: linux-arch-owner@vger.kernel.org List-ID: To: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org Cc: arnd@arndb.de, Vineet Gupta Signed-off-by: Vineet Gupta --- 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 + +#define BASE_BAUD (arc_get_core_freq() / 16) + +#endif /* _ASM_ARC_SERIAL_H */ -- 1.7.4.1