linux-kernel - [PATCH 1/1] ARM: dts: stm32: replace rgmii mode with rgmii-id on stm32mp15 boards

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Date:   Mon, 17 Jun 2019 10:50:18 +0200
From:   Christophe Roullier <christophe.roullier@...com>
To:     <robh@...nel.org>, <davem@...emloft.net>, <joabreu@...opsys.com>,
        <mark.rutland@....com>, <mcoquelin.stm32@...il.com>,
        <alexandre.torgue@...com>, <peppe.cavallaro@...com>
CC:     <linux-stm32@...md-mailman.stormreply.com>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <netdev@...r.kernel.org>,
        <christophe.roullier@...com>, <andrew@...n.ch>
Subject: [PATCH  1/1] ARM: dts: stm32: replace rgmii mode with rgmii-id on stm32mp15 boards

On disco and eval board, Tx and Rx delay are applied (pull-up of 4.7k
put on VDD) so which correspond to RGMII-ID mode with internal RX and TX
delays provided by the PHY, the MAC should not add the RX or TX delays
in this case

Signed-off-by: Christophe Roullier <christophe.roullier@...com>
---
 arch/arm/boot/dts/stm32mp157a-dk1.dts | 2 +-
 arch/arm/boot/dts/stm32mp157c-ev1.dts | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/stm32mp157a-dk1.dts b/arch/arm/boot/dts/stm32mp157a-dk1.dts
index 098dbfb06b61..2c105740dfad 100644
--- a/arch/arm/boot/dts/stm32mp157a-dk1.dts
+++ b/arch/arm/boot/dts/stm32mp157a-dk1.dts
@@ -51,7 +51,7 @@
 	pinctrl-0 = <&ethernet0_rgmii_pins_a>;
 	pinctrl-1 = <&ethernet0_rgmii_pins_sleep_a>;
 	pinctrl-names = "default", "sleep";
-	phy-mode = "rgmii";
+	phy-mode = "rgmii-id";
 	max-speed = <1000>;
 	phy-handle = <&phy0>;
 
diff --git a/arch/arm/boot/dts/stm32mp157c-ev1.dts b/arch/arm/boot/dts/stm32mp157c-ev1.dts
index b6aca40b9b90..ab1393caf799 100644
--- a/arch/arm/boot/dts/stm32mp157c-ev1.dts
+++ b/arch/arm/boot/dts/stm32mp157c-ev1.dts
@@ -79,7 +79,7 @@
 	pinctrl-0 = <&ethernet0_rgmii_pins_a>;
 	pinctrl-1 = <&ethernet0_rgmii_pins_sleep_a>;
 	pinctrl-names = "default", "sleep";
-	phy-mode = "rgmii";
+	phy-mode = "rgmii-id";
 	max-speed = <1000>;
 	phy-handle = <&phy0>;
 
-- 
2.17.1