diff --git a/target/linux/ath79/dts/ar7240_engenius_enh202-v1.dts b/target/linux/ath79/dts/ar7240_engenius_enh202-v1.dts
index 89b6746c61..c5a667b513 100644
--- a/target/linux/ath79/dts/ar7240_engenius_enh202-v1.dts
+++ b/target/linux/ath79/dts/ar7240_engenius_enh202-v1.dts
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 
 #include "ar7240.dtsi"
-#include "ar724x_senao_loader.dtsi"
+#include "ar724x_senao_loader-64k.dtsi"
 
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/input/input.h>
diff --git a/target/linux/ath79/dts/ar7242_engenius_eap350-v1.dts b/target/linux/ath79/dts/ar7242_engenius_eap350-v1.dts
index be0f7cbc43..436d8c1289 100644
--- a/target/linux/ath79/dts/ar7242_engenius_eap350-v1.dts
+++ b/target/linux/ath79/dts/ar7242_engenius_eap350-v1.dts
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 
 #include "ar7242.dtsi"
-#include "ar724x_senao_loader.dtsi"
+#include "ar724x_senao_loader-4k.dtsi"
 
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/input/input.h>
diff --git a/target/linux/ath79/dts/ar7242_engenius_ecb350-v1.dts b/target/linux/ath79/dts/ar7242_engenius_ecb350-v1.dts
index 55343e786a..be9a193170 100644
--- a/target/linux/ath79/dts/ar7242_engenius_ecb350-v1.dts
+++ b/target/linux/ath79/dts/ar7242_engenius_ecb350-v1.dts
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 
 #include "ar7242.dtsi"
-#include "ar724x_senao_loader.dtsi"
+#include "ar724x_senao_loader-4k.dtsi"
 
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/input/input.h>
diff --git a/target/linux/ath79/dts/ar724x_senao_loader-4k.dtsi b/target/linux/ath79/dts/ar724x_senao_loader-4k.dtsi
new file mode 100644
index 0000000000..501ff26859
--- /dev/null
+++ b/target/linux/ath79/dts/ar724x_senao_loader-4k.dtsi
@@ -0,0 +1,85 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include <dt-bindings/mtd/partitions/uimage.h>
+
+/ {
+	virtual_flash {
+		compatible = "mtd-concat";
+
+		devices = <&fwconcat0 &fwconcat1>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				compatible = "openwrt,uimage", "denx,uimage";
+				openwrt,ih-magic = <0x73714f4b>;
+				label = "firmware";
+				reg = <0x0 0x0>;
+			};
+		};
+	};
+};
+
+&spi {
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <20000000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "u-boot";
+				reg = <0x0 0x40000>;
+				read-only;
+			};
+
+			partition@40000 {
+				label = "u-boot-env";
+				reg = <0x40000 0x10000>;
+			};
+
+			partition@50000 {
+				label = "custom";
+				reg = <0x50000 0x50000>;
+				read-only;
+			};
+
+			partition@a0000 {
+				label = "loader";
+				reg = <0xa0000 0x1000>;
+				read-only;
+			};
+
+			fwconcat1: partition@a1000 {
+				label = "fwconcat1";
+				reg = <0xa1000 0xff000>;
+			};
+
+			fwconcat0: partition@1a0000 {
+				label = "fwconcat0";
+				reg = <0x1a0000 0x4d0000>;
+			};
+
+			partition@670000 {
+				label = "failsafe";
+				reg = <0x670000 0x180000>;
+				read-only;
+			};
+
+			art: partition@7f0000 {
+				label = "art";
+				reg = <0x7f0000 0x10000>;
+				read-only;
+			};
+		};
+	};
+};
diff --git a/target/linux/ath79/dts/ar724x_senao_loader.dtsi b/target/linux/ath79/dts/ar724x_senao_loader-64k.dtsi
similarity index 100%
rename from target/linux/ath79/dts/ar724x_senao_loader.dtsi
rename to target/linux/ath79/dts/ar724x_senao_loader-64k.dtsi
diff --git a/target/linux/ath79/image/tiny.mk b/target/linux/ath79/image/tiny.mk
index e9aab2ce06..29e411c058 100644
--- a/target/linux/ath79/image/tiny.mk
+++ b/target/linux/ath79/image/tiny.mk
@@ -33,6 +33,7 @@ TARGET_DEVICES += dlink_dir-615-e4
 
 define Device/engenius_eap350-v1
   $(Device/senao_loader_okli)
+  BLOCKSIZE := 4k
   SOC := ar7242
   DEVICE_VENDOR := EnGenius
   DEVICE_MODEL := EAP350
@@ -45,6 +46,7 @@ TARGET_DEVICES += engenius_eap350-v1
 
 define Device/engenius_ecb350-v1
   $(Device/senao_loader_okli)
+  BLOCKSIZE := 4k
   SOC := ar7242
   DEVICE_VENDOR := EnGenius
   DEVICE_MODEL := ECB350