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Date: Thu, 26 Jun 2014 11:15:13 -0700
From: Florian Fainelli <f.fainelli@...il.com>
To: Boris BREZILLON <boris.brezillon@...e-electrons.com>
Cc: Nicolas Ferre <nicolas.ferre@...el.com>,
Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
Andrew Victor <linux@...im.org.za>,
netdev <netdev@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>,
"David S. Miller" <davem@...emloft.net>
Subject: Re: [PATCH v2 1/2] ARM: at91/dt: describe rgmii ethernet phy
connected to sama5d3xek boards
Hi Boris,
2014-06-26 3:13 GMT-07:00 Boris BREZILLON <boris.brezillon@...e-electrons.com>:
> Add ethernet-phy node and specify phy interrupt (connected to pin PB25).
>
> The PHY address is not specified here because atmel have 2 different
> designs
> for its CPU modules: one is connecting PHYAD[0-2] pins to pull up resistors
> (Embest design) and the other one is connection PHYAD0 to a pull up
> resistor and PHYAD[1-2] to pull down resistors (Ronetix design).
> As a result, Ronetix design will have its PHY available at address 0x1 and
> Embest design at 0x7.
> Let the net PHY core automatically detect the PHY address by scanning the
> MDIO bus.
I though the compatible string was listed as a required property, but
it is not. The 'reg' property however is listed as required, although
the of_miodbus_register() works just fine without it, although that is
a Linux-specific implementation detail.
>
> Define board specific delays to apply to RGMII signals.
>
> Signed-off-by: Boris BREZILLON <boris.brezillon@...e-electrons.com>
Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
> ---
> arch/arm/boot/dts/sama5d3xcm.dtsi | 15 +++++++++++++++
> 1 file changed, 15 insertions(+)
>
> diff --git a/arch/arm/boot/dts/sama5d3xcm.dtsi b/arch/arm/boot/dts/sama5d3xcm.dtsi
> index b0b1331..fc68bae 100644
> --- a/arch/arm/boot/dts/sama5d3xcm.dtsi
> +++ b/arch/arm/boot/dts/sama5d3xcm.dtsi
> @@ -34,6 +34,21 @@
>
> macb0: ethernet@...28000 {
> phy-mode = "rgmii";
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + ethernet-phy {
> + interrupt-parent = <&pioB>;
> + interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
> + txen-skew-ps = <800>;
> + txc-skew-ps = <3000>;
> + rxdv-skew-ps = <400>;
> + rxc-skew-ps = <3000>;
> + rxd0-skew-ps = <400>;
> + rxd1-skew-ps = <400>;
> + rxd2-skew-ps = <400>;
> + rxd3-skew-ps = <400>;
> + };
> };
>
> pmc: pmc@...ffc00 {
> --
> 1.8.3.2
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
--
Florian
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