netdev - Re: [PATCH v3] powerpc/83xx: gianfar_ptp: select 1588 clock source through dts file

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Date:	Fri, 27 Sep 2013 10:28:01 -0500
From:	Kumar Gala <galak@...nel.crashing.org>
To:	Aida Mynzhasova <aida.mynzhasova@...tlab.ru>
Cc:	linuxppc-dev@...ts.ozlabs.org, devicetree@...r.kernel.org,
	netdev@...r.kernel.org, richardcochran@...il.com
Subject: Re: [PATCH v3] powerpc/83xx: gianfar_ptp: select 1588 clock source through dts file


On Sep 27, 2013, at 8:40 AM, Aida Mynzhasova wrote:

> 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@...tlab.ru>
> ---
> Documentation/devicetree/bindings/net/fsl-tsec-phy.txt | 18 +++++++++++++++++-
> drivers/net/ethernet/freescale/gianfar_ptp.c           |  4 +++-
> 2 files changed, 20 insertions(+), 2 deletions(-)

Acked-by: Kumar Gala <galak@...eaurora.org>

- k--
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