From: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Date: Fri, 3 Apr 2020 01:43:07 +0000 (+0900)
Subject: arm64: dts: uniphier: Stabilize Ethernet RGMII mode of PXs3 ref board
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=8f664ce7eda58dbc7d75dc9ff41d04786d284256;p=linux.git

arm64: dts: uniphier: Stabilize Ethernet RGMII mode of PXs3 ref board

The RGMII PHY implemented in PXs3 ref board needs to change
drive-strength properties of the Ethernet Tx pins to stabilize the PHY.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---

diff --git a/arch/arm64/boot/dts/socionext/uniphier-pxs3-ref.dts b/arch/arm64/boot/dts/socionext/uniphier-pxs3-ref.dts
index dc39a73dc7811..7c30c6b56b577 100644
--- a/arch/arm64/boot/dts/socionext/uniphier-pxs3-ref.dts
+++ b/arch/arm64/boot/dts/socionext/uniphier-pxs3-ref.dts
@@ -132,3 +132,19 @@
 		reg = <0>;
 	};
 };
+
+&pinctrl_ether_rgmii {
+	tx {
+		pins = "RGMII0_TXCLK", "RGMII0_TXD0", "RGMII0_TXD1",
+		       "RGMII0_TXD2", "RGMII0_TXD3", "RGMII0_TXCTL";
+		drive-strength = <9>;
+	};
+};
+
+&pinctrl_ether1_rgmii {
+	tx {
+		pins = "RGMII1_TXCLK", "RGMII1_TXD0", "RGMII1_TXD1",
+		       "RGMII1_TXD2", "RGMII1_TXD3", "RGMII1_TXCTL";
+		drive-strength = <9>;
+	};
+};