[PATCH 2/2] arm64: dts: imx93-tqma9352: improve eMMC pad configuration
Alexander Stein
alexander.stein at ew.tq-group.com
Mon Feb 9 07:50:14 PST 2026
From: Markus Niebel <Markus.Niebel at ew.tq-group.com>
Use DSE x4 an PullUp for CMD an DAT, DSE x4 and PullDown for CLK.
This improves stability and detection at low temperatures under -25°C.
Fixes: 0b5fdfaa8e45 ("arm64: dts: freescale: imx93-tqma9352: set SION for cmd and data pad of USDHC")
Signed-off-by: Markus Niebel <Markus.Niebel at ew.tq-group.com>
Signed-off-by: Alexander Stein <alexander.stein at ew.tq-group.com>
---
.../boot/dts/freescale/imx93-tqma9352.dtsi | 26 +++++++++----------
1 file changed, 13 insertions(+), 13 deletions(-)
diff --git a/arch/arm64/boot/dts/freescale/imx93-tqma9352.dtsi b/arch/arm64/boot/dts/freescale/imx93-tqma9352.dtsi
index 3a23e2eb9febe..ce34a296495c4 100644
--- a/arch/arm64/boot/dts/freescale/imx93-tqma9352.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx93-tqma9352.dtsi
@@ -271,21 +271,21 @@ MX93_PAD_SD2_RESET_B__GPIO3_IO07 0x106
/* enable SION for data and cmd pad due to ERR052021 */
pinctrl_usdhc1: usdhc1grp {
fsl,pins = <
- /* PD | FSEL 3 | DSE X5 */
- MX93_PAD_SD1_CLK__USDHC1_CLK 0x5be
+ /* PD | FSEL 3 | DSE X4 */
+ MX93_PAD_SD1_CLK__USDHC1_CLK 0x59e
/* HYS | FSEL 0 | no drive */
MX93_PAD_SD1_STROBE__USDHC1_STROBE 0x1000
- /* HYS | FSEL 3 | X5 */
- MX93_PAD_SD1_CMD__USDHC1_CMD 0x400011be
- /* HYS | FSEL 3 | X4 */
- MX93_PAD_SD1_DATA0__USDHC1_DATA0 0x4000119e
- MX93_PAD_SD1_DATA1__USDHC1_DATA1 0x4000119e
- MX93_PAD_SD1_DATA2__USDHC1_DATA2 0x4000119e
- MX93_PAD_SD1_DATA3__USDHC1_DATA3 0x4000119e
- MX93_PAD_SD1_DATA4__USDHC1_DATA4 0x4000119e
- MX93_PAD_SD1_DATA5__USDHC1_DATA5 0x4000119e
- MX93_PAD_SD1_DATA6__USDHC1_DATA6 0x4000119e
- MX93_PAD_SD1_DATA7__USDHC1_DATA7 0x4000119e
+ /* HYS | PU | FSEL 3 | DSE X4 */
+ MX93_PAD_SD1_CMD__USDHC1_CMD 0x4000139e
+ /* HYS | PU | FSEL 3 | DSE X4 */
+ MX93_PAD_SD1_DATA0__USDHC1_DATA0 0x4000139e
+ MX93_PAD_SD1_DATA1__USDHC1_DATA1 0x4000139e
+ MX93_PAD_SD1_DATA2__USDHC1_DATA2 0x4000139e
+ MX93_PAD_SD1_DATA3__USDHC1_DATA3 0x4000139e
+ MX93_PAD_SD1_DATA4__USDHC1_DATA4 0x4000139e
+ MX93_PAD_SD1_DATA5__USDHC1_DATA5 0x4000139e
+ MX93_PAD_SD1_DATA6__USDHC1_DATA6 0x4000139e
+ MX93_PAD_SD1_DATA7__USDHC1_DATA7 0x4000139e
>;
};
--
2.43.0
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