From: Aida Mynzhasova <aida.mynzhasova@skitlab.ru>
Date: Fri, 27 Sep 2013 13:40:27 +0000 (+0400)
Subject: powerpc/83xx: gianfar_ptp: select 1588 clock source through dts file
X-Git-Tag: v3.12-rc4~30^2~13
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e58f6f4fb4eada7867014bfaec898f03afbce5c2;p=pandora-kernel.git

powerpc/83xx: gianfar_ptp: select 1588 clock source through dts file

Currently IEEE 1588 timer reference clock source is determined through
hard-coded value in gianfar_ptp driver. This patch allows to select ptp
clock source by means of device tree file node.

For instance:

	fsl,cksel = <0>;

for using external (TSEC_TMR_CLK input) high precision timer
reference clock.

Other acceptable values:

	<1> : eTSEC system clock
	<2> : eTSEC1 transmit clock
	<3> : RTC clock input

When this attribute isn't used, eTSEC system clock will serve as
IEEE 1588 timer reference clock.

Signed-off-by: Aida Mynzhasova <aida.mynzhasova@skitlab.ru>
Acked-by: Kumar Gala <galak@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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