diff --git a/arch/arc/dts/axs10x_mb.dtsi b/arch/arc/dts/axs10x_mb.dtsi
index 33b0593..daf7ca6 100644
--- a/arch/arc/dts/axs10x_mb.dtsi
+++ b/arch/arc/dts/axs10x_mb.dtsi
@@ -97,7 +97,8 @@
 			spi-max-frequency = <4000000>;
 			clocks = <&apbclk>;
 			clock-names = "spi_clk";
-			cs-gpio = <&cs_gpio 0>;
+			num-cs = <1>;
+			cs-gpios = <&cs_gpio 0>;
 			spi_flash@0 {
 				compatible = "jedec,spi-nor";
 				reg = <0>;
diff --git a/arch/arc/dts/hsdk-common.dtsi b/arch/arc/dts/hsdk-common.dtsi
index 9aa10e4..a4b348b 100644
--- a/arch/arc/dts/hsdk-common.dtsi
+++ b/arch/arc/dts/hsdk-common.dtsi
@@ -135,7 +135,8 @@
 		spi-max-frequency = <4000000>;
 		clocks = <&cgu_clk CLK_SYS_SPI_REF>;
 		clock-names = "spi_clk";
-		cs-gpio = <&cs_gpio 0>;
+		num-cs = <1>;
+		cs-gpios = <&cs_gpio 0>;
 		spi_flash@0 {
 			compatible = "jedec,spi-nor";
 			reg = <0>;