[PATCH 2/2] arm64: dts: imx93-tqma9352: improve eMMC pad configuration
Frank Li
Frank.li at nxp.com
Mon Feb 9 11:20:24 PST 2026
On Mon, Feb 09, 2026 at 04:50:14PM +0100, Alexander Stein wrote:
> 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.
Nit:
Use DSE x4 an PullUp for CMD an DAT, DSE x4 and PullDown for CLK to improve
stability and detection at low temperatures under -25°C.
If you think it is okay, I can update it when apply it.
Reviewed-by: Frank Li <Frank.Li at nxp.com>
>
> 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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