[PATCH v3 2/4] arm64: dts: imx8mp-evk: add usb3_phy1 tuning properties

From: Xu Yang

Date: Tue Jun 30 2026 - 06:42:54 EST


From: Xu Yang <xu.yang_2@xxxxxxx>

Add some tuning properties for usb3_phy1 to improve signal.

Signed-off-by: Xu Yang <xu.yang_2@xxxxxxx>

---
Changes in v3:
- no changes
Changes in v2:
- new patch
---
arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
index c8f2ba5426ea..8f9b9a1b1686 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
@@ -914,6 +914,8 @@ usb3_data_hs: endpoint {
};

&usb3_phy1 {
+ fsl,phy-tx-preemp-amp-tune-microamp = <1800>;
+ fsl,phy-tx-vref-tune-percent = <116>;
status = "okay";
};

--
2.34.1