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[v4,5/5] arm64: dts: uniphier: Stabilize Ethernet RGMII mode of PXs3 ref board

Message ID 1585878187-8131-6-git-send-email-hayashi.kunihiko@socionext.com
State Superseded
Headers show
Series Add devicetree features and fixes for UniPhier SoCs | expand

Commit Message

Kunihiko Hayashi April 3, 2020, 1:43 a.m. UTC 
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>
---
 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 dc39a73..7c30c6b 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>;
+	};
+};