linux-kernel - [PATCH 1/2] arm64: dts: armada-3720-espressobin: Configure RGMII and SMI pins

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Date:   Mon, 28 Jan 2019 21:07:27 +0100
From:   Remi Pommarel <repk@...plefau.lt>
To:     Jason Cooper <jason@...edaemon.net>, Andrew Lunn <andrew@...n.ch>,
        Gregory Clement <gregory.clement@...tlin.com>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>
Cc:     linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Remi Pommarel <repk@...plefau.lt>
Subject: [PATCH 1/2] arm64: dts: armada-3720-espressobin: Configure RGMII and SMI pins

In order to be able to communicate with the 88e6341 switch some pins
have to be repurposed as RGMII and SMI pins.

This fixes ethernet support on system booted via a bootloader that
has not already configured those pins (e.g. mainline u-boot, or vendor
u-boot compiled without ethernet support).

Signed-off-by: Remi Pommarel <repk@...plefau.lt>
---
 arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts | 2 ++
 arch/arm64/boot/dts/marvell/armada-37xx.dtsi            | 5 +++++
 2 files changed, 7 insertions(+)

diff --git a/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts b/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts
index 846003bb480c..b60897edc885 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts
@@ -196,6 +196,8 @@
 };
 
 &eth0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&rgmii_pins>, <&smi_pins>;
 	phy-mode = "rgmii-id";
 	status = "okay";
 
diff --git a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
index e05594ea15fb..f61538910901 100644
--- a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
@@ -271,6 +271,11 @@
 					function = "mii";
 				};
 
+				smi_pins: smi-pins {
+					groups = "smi";
+					function = "smi";
+				};
+
 				sdio_pins: sdio-pins {
 					groups = "sdio_sb";
 					function = "sdio";
-- 
2.20.1