diff --git a/target/linux/ramips/dts/mt7620a.dtsi b/target/linux/ramips/dts/mt7620a.dtsi
index 93b4286193a8..0555674802c0 100644
--- a/target/linux/ramips/dts/mt7620a.dtsi
+++ b/target/linux/ramips/dts/mt7620a.dtsi
@@ -540,7 +540,7 @@
 		interrupt-parent = <&intc>;
 		interrupts = <14>;
 
-		max-frequency = <48000000>;
+		max-frequency = <24000000>;
 
 		pinctrl-names = "default", "state_uhs";
 		pinctrl-0 = <&sdhci_pins>;
diff --git a/target/linux/ramips/dts/mt7620a_hiwifi_hc5861.dts b/target/linux/ramips/dts/mt7620a_hiwifi_hc5861.dts
index 29aff9958a87..2cb7017972e2 100644
--- a/target/linux/ramips/dts/mt7620a_hiwifi_hc5861.dts
+++ b/target/linux/ramips/dts/mt7620a_hiwifi_hc5861.dts
@@ -108,10 +108,6 @@
 	};
 };
 
-&sdhci {
-	max-frequency = <24000000>;
-};
-
 &wmac {
 	pinctrl-names = "default", "pa_gpio";
 	pinctrl-0 = <&pa_pins>;
diff --git a/target/linux/ramips/dts/mt7628an.dtsi b/target/linux/ramips/dts/mt7628an.dtsi
index 239211b1e18b..79763332b8bf 100644
--- a/target/linux/ramips/dts/mt7628an.dtsi
+++ b/target/linux/ramips/dts/mt7628an.dtsi
@@ -394,7 +394,7 @@
 		interrupt-parent = <&intc>;
 		interrupts = <14>;
 
-		max-frequency = <48000000>;
+		max-frequency = <24000000>;
 
 		pinctrl-names = "default", "state_uhs";
 		pinctrl-0 = <&sdxc_pins>;