arm64: dts: imx93-11x11-evk: change usdhc tuning step for eMMC and SD

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During system resume, the following errors occurred:

  [  430.638625] mmc1: error -84 writing Cache Enable bit
  [  430.643618] mmc1: error -84 doing runtime resume

For eMMC and SD, there are two tuning pass windows and the gap between
those two windows may only have one cell. If tuning step > 1, the gap may
just be skipped and host assumes those two windows as a continuous
windows. This will cause a wrong delay cell near the gap to be selected.

Set the tuning step to 1 to avoid selecting the wrong delay cell.

For SDIO, the gap is sufficiently large, so the default tuning step does
not cause this issue.

Fixes: e37907bd82 ("arm64: dts: freescale: add i.MX93 11x11 EVK basic support")
Signed-off-by: Luke Wang <ziniu.wang_1@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>

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Luke Wang 2026-02-03 19:23:09 +08:00 • committed by Frank Li

parent 5ab0c76df2

commit 399c6e3385

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arch/arm64/boot/dts/freescale/imx93-11x11-evk-common.dtsi

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