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Message-Id: <20200420110715.12032-1-matwey@sai.msu.ru>
Date: Mon, 20 Apr 2020 14:07:15 +0300
From: "Matwey V. Kornilov" <matwey@....msu.ru>
To: Rob Herring <robh+dt@...nel.org>,
Michal Simek <michal.simek@...inx.com>,
devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
DEVICE TREE BINDINGS),
linux-arm-kernel@...ts.infradead.org (moderated list:ARM/ZYNQ
ARCHITECTURE), linux-kernel@...r.kernel.org (open list)
Cc: matwey.kornilov@...il.com,
"Matwey V. Kornilov" <matwey@....msu.ru>,
devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
DEVICE TREE BINDINGS),
linux-arm-kernel@...ts.infradead.org (moderated list:ARM/ZYNQ
ARCHITECTURE), linux-kernel@...r.kernel.org (open list)
Subject: [PATCH] ARM: dts: zynq: Fix ethernet PHY for v5 schematics
There are at least two different versions existing for MYIR Zturn:
* v4 schematics has Atheros AR8035 PHY at 0b000
http://www.myirtech.com/download/Zynq7000/Z-TURNBOARD_schematic.pdf
* v5 schematics has Micrel KSZ9031 PHY at 0b011
v5 schematics available at DVD disk supplied with the board
Specify both PHYs to make ethernet interface working for any board
revision. This commit relies on of_mdiobus_register() behaviour.
Before the patch:
[ 28.295002] macb e000b000.ethernet eth0: Could not attach PHY (-19)
After the patch:
[ 28.257365] macb e000b000.ethernet eth0: PHY [e000b000.ethernet-ffffffff:00] driver [Micrel KSZ9031 Gigabit PHY] (irq=POLL)
[ 28.257384] macb e000b000.ethernet eth0: configuring for phy/rgmii-id link mode
Signed-off-by: Matwey V. Kornilov <matwey@....msu.ru>
---
arch/arm/boot/dts/zynq-zturn.dts | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/arch/arm/boot/dts/zynq-zturn.dts b/arch/arm/boot/dts/zynq-zturn.dts
index 5ec616ebca08..07da9cf60d02 100644
--- a/arch/arm/boot/dts/zynq-zturn.dts
+++ b/arch/arm/boot/dts/zynq-zturn.dts
@@ -67,10 +67,17 @@
&gem0 {
status = "okay";
phy-mode = "rgmii-id";
- phy-handle = <ðernet_phy>;
- ethernet_phy: ethernet-phy@0 {
- reg = <0x0>;
+ ethernet-phy@0 {
+ compatible = "ethernet-phy-ieee802.3-c22";
+ reg = <0>;
+ max-speed = <1000>;
+ };
+
+ ethernet-phy@3 {
+ compatible = "ethernet-phy-ieee802.3-c22";
+ reg = <3>;
+ max-speed = <1000>;
};
};
--
2.16.4
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