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arm64: dts: freescale: imx{91,93}-phycore-som: Adjust PHY RST drive-strength

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According to measurements, the PHY reset signal shows an overshoot on
the rising edge that exceeds the specified limits (max 2.1V) when using
X4 strength on ENET2_RXC. Reduce drive-strength to X1 to decrease the
overshoot and bring signal within specification limits.

Signed-off-by: Primoz Fiser <primoz.fiser@norik.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
This commit is contained in:
Primoz Fiser 2026-05-07 08:20:57 +02:00 committed by Frank Li
parent 5601ee1b64
commit e1b256ccc5
2 changed files with 2 additions and 2 deletions
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2
arch/arm64/boot/dts/freescale/imx91-phycore-som.dtsi
View File

@ -242,7 +242,7 @@ MX91_PAD_ENET2_TD0__ENET2_RGMII_TD0 0x50e
MX91_PAD_ENET2_TD1__ENET2_RGMII_TD1 0x50e
MX91_PAD_ENET2_TX_CTL__ENET2_RGMII_TX_CTL 0x50e
MX91_PAD_ENET2_TD2__ENET2_TX_CLK2 0x4000050e
MX91_PAD_ENET2_RXC__GPIO4_IO23 0x51e
MX91_PAD_ENET2_RXC__GPIO4_IO23 0x502
>;
};

2
arch/arm64/boot/dts/freescale/imx93-phycore-som.dtsi
View File

@ -244,7 +244,7 @@ MX93_PAD_ENET2_TD0__ENET1_RGMII_TD0 0x50e
MX93_PAD_ENET2_TD1__ENET1_RGMII_TD1 0x50e
MX93_PAD_ENET2_TX_CTL__ENET1_RGMII_TX_CTL 0x50e
MX93_PAD_ENET2_TD2__ENET1_TX_CLK 0x4000050e
MX93_PAD_ENET2_RXC__GPIO4_IO23 0x51e
MX93_PAD_ENET2_RXC__GPIO4_IO23 0x502
>;
};