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authorJosua Mayer <josua@solid-run.com>2025-09-11 20:28:05 +0200
committerGregory CLEMENT <gregory.clement@bootlin.com>2025-09-12 14:54:38 +0200
commit48b51799a5461707705454568453618cdd7307f4 (patch)
treed5dd426c22693d39d3e293c3e08982ef7888786b
parentd3021e6aa11fecdafa85038a037c04d5bfeda9d5 (diff)
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>
-rw-r--r--arch/arm64/boot/dts/marvell/cn9132-sr-cex7.dtsi8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/marvell/cn9132-sr-cex7.dtsi b/arch/arm64/boot/dts/marvell/cn9132-sr-cex7.dtsi
index afc041c1c448..bb2bb47fd77c 100644
--- 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";
};