[PATCH v2 02/13] ARM: dts: imx6qdl-kontron-samx6i: fix PHY reset

Michael Walle
2024-06-06T09:02:26Z

The PHY reset line is connected to both the SoC (GPIO1_25) and
the CPLD. We must not use the GPIO1_25 as it will drive against
the output buffer of the CPLD. Instead there is another GPIO
(GPIO2_01), an input to the CPLD, which will tell the CPLD to
assert the PHY reset line.

Fixes: 2a51f9dae13d ("ARM: dts: imx6qdl-kontron-samx6i: Add iMX6-based Kontron SMARC-sAMX6i module")
Fixes: 5694eed98cca ("ARM: dts: imx6qdl-kontron-samx6i: move phy reset into phy-node")
Signed-off-by: Michael Walle <mwalle@kernel.org>
---
arch/arm/boot/dts/nxp/imx/imx6qdl-kontron-samx6i.dtsi | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/nxp/imx/imx6qdl-kontron-samx6i.dtsi b/arch/arm/boot/dts/nxp/imx/imx6qdl-kontron-samx6i.dtsi
index d8c1dfb8c9ab..d6c049b9a9c6 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6qdl-kontron-samx6i.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx6qdl-kontron-samx6i.dtsi
@@ -269,7 +269,7 @@ mdio {
ethphy: ethernet-phy@1 {
compatible = "ethernet-phy-ieee802.3-c22";
reg = <1>;
- reset-gpios = <&gpio1 25 GPIO_ACTIVE_LOW>;
+ reset-gpios = <&gpio2 1 GPIO_ACTIVE_LOW>;
reset-assert-us = <1000>;
};
};
@@ -516,7 +516,7 @@ MX6QDL_PAD_RGMII_RX_CTL__RGMII_RX_CTL 0x1b0b0
MX6QDL_PAD_ENET_MDIO__ENET_MDIO 0x1b0b0
MX6QDL_PAD_ENET_MDC__ENET_MDC 0x1b0b0
MX6QDL_PAD_ENET_REF_CLK__ENET_TX_CLK 0x1b0b0
- MX6QDL_PAD_ENET_CRS_DV__GPIO1_IO25 0x1b0b0 /* RST_GBE0_PHY# */
+ MX6QDL_PAD_NANDF_D1__GPIO2_IO01 0x1b0b0 /* RST_GBE0_PHY# */
>;
};

--
2.39.2