linux-kernel - [PATCH] ARM: dts: at91: add new compatibility string for macb on sama5d3

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Message-ID: <20180914154811.12090-2-nicolas.ferre@microchip.com>
Date:   Fri, 14 Sep 2018 17:48:11 +0200
From:   Nicolas Ferre <nicolas.ferre@...rochip.com>
To:     <netdev@...r.kernel.org>
CC:     <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        Claudiu Beznea <claudiu.beznea@...rochip.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Ludovic Desroches <ludovic.desroches@...rochip.com>,
        <devicetree@...r.kernel.org>,
        "Nicolas Ferre" <nicolas.ferre@...rochip.com>
Subject: [PATCH] ARM: dts: at91: add new compatibility string for macb on sama5d3

We need this new compatibility string as we experienced different behavior
for this 10/100Mbits/s macb interface on this particular SoC.
Backward compatibility is preserved as we keep the alternative strings.

Signed-off-by: Nicolas Ferre <nicolas.ferre@...rochip.com>
---
 Documentation/devicetree/bindings/net/macb.txt | 1 +
 arch/arm/boot/dts/sama5d3_emac.dtsi            | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/net/macb.txt b/Documentation/devicetree/bindings/net/macb.txt
index 457d5ae16f23..3e17ac1d5d58 100644
--- a/Documentation/devicetree/bindings/net/macb.txt
+++ b/Documentation/devicetree/bindings/net/macb.txt
@@ -10,6 +10,7 @@ Required properties:
   Use "cdns,pc302-gem" for Picochip picoXcell pc302 and later devices based on
   the Cadence GEM, or the generic form: "cdns,gem".
   Use "atmel,sama5d2-gem" for the GEM IP (10/100) available on Atmel sama5d2 SoCs.
+  Use "atmel,sama5d3-macb" for the 10/100Mbit IP available on Atmel sama5d3 SoCs.
   Use "atmel,sama5d3-gem" for the Gigabit IP available on Atmel sama5d3 SoCs.
   Use "atmel,sama5d4-gem" for the GEM IP (10/100) available on Atmel sama5d4 SoCs.
   Use "cdns,zynq-gem" Xilinx Zynq-7xxx SoC.
diff --git a/arch/arm/boot/dts/sama5d3_emac.dtsi b/arch/arm/boot/dts/sama5d3_emac.dtsi
index 7cb235ef0fb6..6e9e1c2f9def 100644
--- a/arch/arm/boot/dts/sama5d3_emac.dtsi
+++ b/arch/arm/boot/dts/sama5d3_emac.dtsi
@@ -41,7 +41,7 @@
 			};
 
 			macb1: ethernet@...2c000 {
-				compatible = "cdns,at91sam9260-macb", "cdns,macb";
+				compatible = "atmel,sama5d3-macb", "cdns,at91sam9260-macb", "cdns,macb";
 				reg = <0xf802c000 0x100>;
 				interrupts = <35 IRQ_TYPE_LEVEL_HIGH 3>;
 				pinctrl-names = "default";
-- 
2.15.1