netdev - Re: [PATCH v2 5/5] stmmac: socfpga: Provide dt node to config ptp clk source.

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Date:	Mon, 07 Dec 2015 10:05:07 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	Phil Reid <preid@...ctromag.com.au>
Cc:	robh+dt@...nel.org, pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
	peppe.cavallaro@...com, davem@...emloft.net,
	devicetree@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH v2 5/5] stmmac: socfpga: Provide dt node to config ptp clk source.

On Monday 07 December 2015 09:38:44 Phil Reid wrote:
> Signed-off-by: Phil Reid <preid@...ctromag.com.au>
> ---
>  Documentation/devicetree/bindings/net/socfpga-dwmac.txt | 2 ++
>  drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c     | 9 +++++++++
>  2 files changed, 11 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/net/socfpga-dwmac.txt b/Documentation/devicetree/bindings/net/socfpga-dwmac.txt
> index 3a9d679..72d82d6 100644
> --- a/Documentation/devicetree/bindings/net/socfpga-dwmac.txt
> +++ b/Documentation/devicetree/bindings/net/socfpga-dwmac.txt
> @@ -11,6 +11,8 @@ Required properties:
>                   designware version numbers documented in stmmac.txt
>   - altr,sysmgr-syscon : Should be the phandle to the system manager node that
>     encompasses the glue register, the register offset, and the register shift.
> + - altr,f2h_ptp_ref_clk use f2h_ptp_ref_clk instead of default eosc1 clock
> +   for ptp ref clk. This affects all emacs as the clock is common.
> 

Is this feature specific to the Altera glue logic, or would it be possible
to do the same thing on another dwmac implementation?

	Arnd
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