From: Vineet Gupta <vgupta@synopsys.com>
Date: Tue, 28 Oct 2014 09:34:05 +0000 (+0530)
Subject: ARC: Dynamically determine BASE_BAUD from DeviceTree
X-Git-Tag: omap-for-v4.1/prcm-dts-mfd-syscon-fix~79^2~2
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ffb7fcd66f14bc716b9fdf559e71909131fef39b;p=pandora-kernel.git

ARC: Dynamically determine BASE_BAUD from DeviceTree

8250 earlycon is broken on multi-platform ARC because the UART clk
value (BASE_BAUD) is fixed at build time.

Instead, determine the appropriate UART clk at runtime; parse the
devicetree early for platforms requiring alternate UART clk values
(currently only the TB10X platform).

Cc: Jiri Slaby <jslaby@suse.cz>
Cc: linux-serial@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: Rob Herring <robh@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---

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