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

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: e9ff907f4076 ("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>

diff --git a/arch/arm64/boot/dts/marvell/cn9132-sr-cex7.dtsi b/arch/arm64/boot/dts/marvell/cn9132-sr-cex7.dtsi
index afc041c1c448c3e49e1c35d817e91e75db6cfad6..bb2bb47fd77c12f1461b5b9f6ef5567a32cc0153 100644 (file)
--- a/arch/arm64/boot/dts/marvell/cn9132-sr-cex7.dtsi
+++ b/arch/arm64/boot/dts/marvell/cn9132-sr-cex7.dtsi
@@ -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";
 };