[PATCH v2 8/9] arm64: dts: imx8ulp-evk: Change the values of some PCRs of ENET

Peng Fan (OSS) peng.fan at oss.nxp.com
Mon Jul 20 07:12:16 PDT 2026


From: Wei Fang <wei.fang at nxp.com>

Change to use standard drive strength and slow slew rate on
PTE14-17, 22, 23, otherwise the overshoot of ENET is too high.

Signed-off-by: Wei Fang <wei.fang at nxp.com>
Signed-off-by: Peng Fan <peng.fan at nxp.com>
---
 arch/arm64/boot/dts/freescale/imx8ulp-evk.dts | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts b/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts
index 9da54291c7534..22c1d542798d5 100644
--- a/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts
@@ -323,15 +323,15 @@ &mu {
 &iomuxc1 {
 	pinctrl_enet: enetgrp {
 		fsl,pins = <
-			MX8ULP_PAD_PTE15__ENET0_MDC     0x43
-			MX8ULP_PAD_PTE14__ENET0_MDIO    0x43
-			MX8ULP_PAD_PTE17__ENET0_RXER    0x43
+			MX8ULP_PAD_PTE15__ENET0_MDC     0x7
+			MX8ULP_PAD_PTE14__ENET0_MDIO    0x7
+			MX8ULP_PAD_PTE17__ENET0_RXER    0x7
 			MX8ULP_PAD_PTE18__ENET0_CRS_DV  0x43
 			MX8ULP_PAD_PTF1__ENET0_RXD0     0x43
 			MX8ULP_PAD_PTE20__ENET0_RXD1    0x43
-			MX8ULP_PAD_PTE16__ENET0_TXEN    0x43
-			MX8ULP_PAD_PTE23__ENET0_TXD0    0x43
-			MX8ULP_PAD_PTE22__ENET0_TXD1    0x43
+			MX8ULP_PAD_PTE16__ENET0_TXEN    0x7
+			MX8ULP_PAD_PTE23__ENET0_TXD0    0x7
+			MX8ULP_PAD_PTE22__ENET0_TXD1    0x7
 			MX8ULP_PAD_PTE19__ENET0_REFCLK  0x43
 			MX8ULP_PAD_PTF10__ENET0_1588_CLKIN 0x43
 		>;

-- 
2.34.1




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