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-rw-r--r--arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
index 4cc735899c5d..d47be95ad06a 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
@@ -173,6 +173,8 @@
marvell,pad-type = "sd";
vqmmc-supply = <&vsdio_reg>;
mmc-pwrseq = <&sdhci1_pwrseq>;
+ /* forbid SDR104 for FCC purposes */
+ sdhci-caps-mask = <0x2 0x0>;
status = "okay";
};