linux-kernel - [PATCH v3 1/2] ARM: at91/dt: describe rgmii ethernet phy connected to sama5d3xek boards

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Message-Id: <1405022394-8311-2-git-send-email-boris.brezillon@free-electrons.com>
Date:	Thu, 10 Jul 2014 21:59:53 +0200
From:	Boris BREZILLON <boris.brezillon@...e-electrons.com>
To:	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>,
	Florian Fainelli <f.fainelli@...il.com>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>, devicetree@...r.kernel.org,
	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
	Boris BREZILLON <boris.brezillon@...e-electrons.com>
Subject: [PATCH v3 1/2] ARM: at91/dt: describe rgmii ethernet phy connected to sama5d3xek boards

Add ethernet-phy nodes and specify phy interrupt (connected to pin PB25)
and board specific timing configs.

Atmel has two different HW designs for its CPU modules: the first one
(produced by Embest) is connecting PHYAD[0-2] pins to pull up resistors
and the other one (produced by Ronetix) is connecting PHYAD0 to a pull up
resistor and PHYAD[1-2] to pull down resistors.
As a result, Ronetix design will have its PHY available at address 0x1 and
Embest design at 0x7.
By defining both phys we're letting the phy core detect the one actually
available on the MDIO bus.

Signed-off-by: Boris BREZILLON <boris.brezillon@...e-electrons.com>
---

Florian, I dropped your Reviewed-by tag because this patch has slightly
changed.


 arch/arm/boot/dts/sama5d3xcm.dtsi | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/arch/arm/boot/dts/sama5d3xcm.dtsi b/arch/arm/boot/dts/sama5d3xcm.dtsi
index b0b1331..755369e 100644
--- a/arch/arm/boot/dts/sama5d3xcm.dtsi
+++ b/arch/arm/boot/dts/sama5d3xcm.dtsi
@@ -34,6 +34,36 @@
 
 			macb0: ethernet@...28000 {
 				phy-mode = "rgmii";
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				ethernet-phy@1 {
+					reg = <0x1>;
+					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>;
+				};
+
+				ethernet-phy@7 {
+					reg = <0x7>;
+					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

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