diff mbox series

[v2,6/6] arm64: dts: uniphier: Stabilize Ethernet RGMII mode of PXs3 ref board

Message ID 1584604252-13172-7-git-send-email-hayashi.kunihiko@socionext.com (mailing list archive)
State New, archived
Headers show
Series Add devicetree features and fixes for UniPhier SoCs | expand

Commit Message

Kunihiko Hayashi March 19, 2020, 7:50 a.m. UTC 
The RGMII PHY needs to change drive-strength properties of the Ethernet
Tx pins to stabilize the PHY.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
---
 arch/arm64/boot/dts/socionext/uniphier-pxs3-ref.dts | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/socionext/uniphier-pxs3-ref.dts b/arch/arm64/boot/dts/socionext/uniphier-pxs3-ref.dts
index fcab6d1..d74a6c6 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>;
+	};
+};