linux-kernel - [PATCH 5.4 049/111] ARM: dts: at91-sama5d27

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Message-Id: <20210329075616.823748620@linuxfoundation.org>
Date:   Mon, 29 Mar 2021 09:57:57 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Claudiu Beznea <claudiu.beznea@...rochip.com>,
        Ludovic Desroches <ludovic.desroches@...rochip.com>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>
Subject: [PATCH 5.4 049/111] ARM: dts: at91-sama5d27_som1: fix phy address to 7

From: Claudiu Beznea <claudiu.beznea@...rochip.com>

commit 221c3a09ddf70a0a51715e6c2878d8305e95c558 upstream.

Fix the phy address to 7 for Ethernet PHY on SAMA5D27 SOM1. No
connection established if phy address 0 is used.

The board uses the 24 pins version of the KSZ8081RNA part, KSZ8081RNA
pin 16 REFCLK as PHYAD bit [2] has weak internal pull-down.  But at
reset, connected to PD09 of the MPU it's connected with an internal
pull-up forming PHYAD[2:0] = 7.

Signed-off-by: Claudiu Beznea <claudiu.beznea@...rochip.com>
Fixes: 2f61929eb10a ("ARM: dts: at91: at91-sama5d27_som1: fix PHY ID")
Cc: Ludovic Desroches <ludovic.desroches@...rochip.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@...rochip.com>
Cc: <stable@...r.kernel.org> # 4.14+
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 arch/arm/boot/dts/at91-sama5d27_som1.dtsi |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/arch/arm/boot/dts/at91-sama5d27_som1.dtsi
+++ b/arch/arm/boot/dts/at91-sama5d27_som1.dtsi
@@ -44,8 +44,8 @@
 				pinctrl-0 = <&pinctrl_macb0_default>;
 				phy-mode = "rmii";
 
-				ethernet-phy@0 {
-					reg = <0x0>;
+				ethernet-phy@7 {
+					reg = <0x7>;
 					interrupt-parent = <&pioA>;
 					interrupts = <PIN_PD31 IRQ_TYPE_LEVEL_LOW>;
 					pinctrl-names = "default";