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arm64: dts: marvell: cn9132-clearfog: disable eMMC high-speed modes

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commit 48b51799a5461707705454568453618cdd7307f4 upstream.

Similar to MacchiatoBIN the high-speed modes are unstable on the CN9132
CEX-7 module, leading to failed transactions under normal use.

Disable all high-speed modes including UHS.

Additionally add no-sdio and non-removable properties as appropriate for
eMMC.

Fixes: e9ff907f40 ("arm64: dts: add description for solidrun cn9132 cex7 module and clearfog board")
Cc: stable@vger.kernel.org
Signed-off-by: Josua Mayer <josua@solid-run.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Josua Mayer 2025-09-11 20:28:05 +02:00 committed by Greg Kroah-Hartman
parent cb20fe9502
commit 562a134222
1 changed files with 8 additions and 0 deletions
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8
arch/arm64/boot/dts/marvell/cn9132-sr-cex7.dtsi
View File

@ -137,6 +137,14 @@
pinctrl-0 = <&ap_mmc0_pins>;
pinctrl-names = "default";
vqmmc-supply = <&v_1_8>;
/*
* Not stable in HS modes - phy needs "more calibration", so disable
* UHS (by preventing voltage switch), SDR104, SDR50 and DDR50 modes.
*/
no-1-8-v;
no-sd;
no-sdio;
non-removable;
status = "okay";
};