From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tony Lindgren <tony@atomide.com>
Subject: Re: [PATCH 2/4] ARM: dts: dm8168-evm: add the external reference
 clock for SATA
Date: Mon, 13 Mar 2017 14:34:06 -0700
Message-ID: <20170313213405.GX20572@atomide.com>
References: <1489423399-3824-1-git-send-email-bgolaszewski@baylibre.com>
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To: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Cc: Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Neil Armstrong <narmstrong@baylibre.com>, Michael Turquette <mturquette@baylibre.com>, Kevin Hilman <khilman@baylibre.com>, Patrick Titiano <ptitiano@baylibre.com>, Paul Walmsley <paul@pwsan.com>, linux-ide@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org
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* Bartosz Golaszewski <bgolaszewski@baylibre.com> [170313 09:45]:
> This board has an external oscillator supplying the reference clock
> signal for SATA. Its rate is fixed at 100Mhz. Add a corresponding
> device tree node.

Is this the 100MHz clock from PCIe? Just like on dm814x-evm as noted
in the workaround thread below:

http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/716/p/181083/671141

Regards,

Tony

> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> ---
>  arch/arm/boot/dts/dm8168-evm.dts | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/dm8168-evm.dts b/arch/arm/boot/dts/dm8168-evm.dts
> index 0bf55fa..f13e214 100644
> --- a/arch/arm/boot/dts/dm8168-evm.dts
> +++ b/arch/arm/boot/dts/dm8168-evm.dts
> @@ -25,6 +25,12 @@
>  		regulator-min-microvolt = <3300000>;
>  		regulator-max-microvolt = <3300000>;
>  	};
> +
> +	sata_refclk: fixedclock0 {
> +		#clock-cells = <0>;
> +		compatible = "fixed-clock";
> +		clock-frequency = <100000000>;
> +	};
>  };
>  
>  &dm816x_pinmux {
> -- 
> 2.9.3
>