* [PATCH 1/1] arm64: dts: imx93-tqma9352-mba91xxca: disable Open Drain for MDIO
@ 2025-04-30 8:18 Alexander Stein
2025-05-09 14:40 ` Shawn Guo
0 siblings, 1 reply; 2+ messages in thread
From: Alexander Stein @ 2025-04-30 8:18 UTC (permalink / raw)
To: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Shawn Guo,
Sascha Hauer, Pengutronix Kernel Team, Fabio Estevam,
Alexander Stein, Markus Niebel
Cc: linux, devicetree, imx, linux-arm-kernel, linux-kernel
From: Markus Niebel <Markus.Niebel@ew.tq-group.com>
Using the MDIO pins with Open Drain causes spec violations of the
signals. Revert the changes.
This is similar to commit 14e66e4b13221 ("Revert "arm64: dts:
imx93-tqma9352-mba93xxca: enable Open Drain for MDIO"")
Fixes: e5bc07026f94 ("arm64: add initial device tree for TQMa93xx/MBa91xxCA")
Signed-off-by: Markus Niebel <Markus.Niebel@ew.tq-group.com>
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
---
arch/arm64/boot/dts/freescale/imx93-tqma9352-mba91xxca.dts | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/freescale/imx93-tqma9352-mba91xxca.dts b/arch/arm64/boot/dts/freescale/imx93-tqma9352-mba91xxca.dts
index 7b78faa4bfd09..9dbf41cf394bf 100644
--- a/arch/arm64/boot/dts/freescale/imx93-tqma9352-mba91xxca.dts
+++ b/arch/arm64/boot/dts/freescale/imx93-tqma9352-mba91xxca.dts
@@ -571,7 +571,7 @@ pinctrl_eqos: eqosgrp {
fsl,pins = /* PD | FSEL_2 | DSE X4 */
<MX93_PAD_ENET1_MDC__ENET_QOS_MDC 0x51e>,
/* SION | HYS | ODE | FSEL_2 | DSE X4 */
- <MX93_PAD_ENET1_MDIO__ENET_QOS_MDIO 0x4000191e>,
+ <MX93_PAD_ENET1_MDIO__ENET_QOS_MDIO 0x4000111e>,
/* HYS | FSEL_0 | DSE no drive */
<MX93_PAD_ENET1_RD0__ENET_QOS_RGMII_RD0 0x1000>,
<MX93_PAD_ENET1_RD1__ENET_QOS_RGMII_RD1 0x1000>,
@@ -599,7 +599,7 @@ pinctrl_fec: fecgrp {
fsl,pins = /* PD | FSEL_2 | DSE X4 */
<MX93_PAD_ENET2_MDC__ENET1_MDC 0x51e>,
/* SION | HYS | ODE | FSEL_2 | DSE X4 */
- <MX93_PAD_ENET2_MDIO__ENET1_MDIO 0x4000191e>,
+ <MX93_PAD_ENET2_MDIO__ENET1_MDIO 0x4000111e>,
/* HYS | FSEL_0 | DSE no drive */
<MX93_PAD_ENET2_RD0__ENET1_RGMII_RD0 0x1000>,
<MX93_PAD_ENET2_RD1__ENET1_RGMII_RD1 0x1000>,
--
2.43.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH 1/1] arm64: dts: imx93-tqma9352-mba91xxca: disable Open Drain for MDIO
2025-04-30 8:18 [PATCH 1/1] arm64: dts: imx93-tqma9352-mba91xxca: disable Open Drain for MDIO Alexander Stein
@ 2025-05-09 14:40 ` Shawn Guo
0 siblings, 0 replies; 2+ messages in thread
From: Shawn Guo @ 2025-05-09 14:40 UTC (permalink / raw)
To: Alexander Stein
Cc: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Shawn Guo,
Sascha Hauer, Pengutronix Kernel Team, Fabio Estevam,
Markus Niebel, linux, devicetree, imx, linux-arm-kernel,
linux-kernel
On Wed, Apr 30, 2025 at 10:18:48AM +0200, Alexander Stein wrote:
> From: Markus Niebel <Markus.Niebel@ew.tq-group.com>
>
> Using the MDIO pins with Open Drain causes spec violations of the
> signals. Revert the changes.
> This is similar to commit 14e66e4b13221 ("Revert "arm64: dts:
> imx93-tqma9352-mba93xxca: enable Open Drain for MDIO"")
>
> Fixes: e5bc07026f94 ("arm64: add initial device tree for TQMa93xx/MBa91xxCA")
> Signed-off-by: Markus Niebel <Markus.Niebel@ew.tq-group.com>
> Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Applied, thanks!
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