diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-amd-chalupa.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-amd-chalupa.dts
index da4fb97d108261..b8d296e400f962 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-amd-chalupa.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-amd-chalupa.dts
@@ -534,6 +534,7 @@
 &i2c10 {
 	// Net name i2c7 (SCM_I2C7)
 	status = "okay";
+	bus-frequency = <400000>;
 	multi-master;
 	mctp-controller;
 	mctp@10 {
diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-amd-galena.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-amd-galena.dts
index 68558abe7007f0..644ef60172a6a4 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-amd-galena.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-amd-galena.dts
@@ -263,6 +263,7 @@
 &i2c10 {
 	// Net name i2c7
 	status = "okay";
+	bus-frequency = <400000>;
 	multi-master;
 	mctp-controller;
 	mctp@10 {