diff --git a/meta-arm-bsp/recipes-bsp/u-boot/u-boot/corstone1000/0026-Introduce-external-sys-driver-to-device-tree.patch b/meta-arm-bsp/recipes-bsp/u-boot/u-boot/corstone1000/0026-Introduce-external-sys-driver-to-device-tree.patch
new file mode 100644
index 00000000..cc4ab0a3
--- /dev/null
+++ b/meta-arm-bsp/recipes-bsp/u-boot/u-boot/corstone1000/0026-Introduce-external-sys-driver-to-device-tree.patch
@@ -0,0 +1,37 @@
+Upstream-Status: Pending [Not submitted to upstream yet]
+Signed-off-by: Emekcan Aras <emekcan.aras@arm.com>
+
+From 83f16fe96a86b00f7a4b7c4c4f7416119b80eddd Mon Sep 17 00:00:00 2001
+From: Emekcan <emekcan.aras@arm.com>
+Date: Fri, 19 Aug 2022 16:04:48 +0100
+Subject: [PATCH] Introduce external sys driver to device-tree
+
+It adds external sys driver binding to u-boot
+device tree.
+
+Signed-off-by: Emekcan Aras <emekcan.aras@arm.com>
+---
+ arch/arm/dts/corstone1000.dtsi | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+diff --git a/arch/arm/dts/corstone1000.dtsi b/arch/arm/dts/corstone1000.dtsi
+index d0194aa893..19b6e3ea72 100644
+--- a/arch/arm/dts/corstone1000.dtsi
++++ b/arch/arm/dts/corstone1000.dtsi
+@@ -160,6 +160,13 @@
+ 			secure-status = "okay";     /* secure-world-only */
+ 			status = "disabled";
+ 		};
++
++		extsys0: extsys@1A010310 {
++			compatible = "arm,extsys_ctrl";
++			reg = <0x1A010310 0x4>,
++			      <0x1A010314 0X4>;
++			reg-names = "rstreg", "streg";
++		};
+ 	};
+ 
+ 	arm_ffa: arm_ffa {
+-- 
+2.17.1
+
diff --git a/meta-arm-bsp/recipes-bsp/u-boot/u-boot_%.bbappend b/meta-arm-bsp/recipes-bsp/u-boot/u-boot_%.bbappend
index a0a72845..3c316f30 100644
--- a/meta-arm-bsp/recipes-bsp/u-boot/u-boot_%.bbappend
+++ b/meta-arm-bsp/recipes-bsp/u-boot/u-boot_%.bbappend
@@ -43,6 +43,7 @@ SRC_URI:append:corstone1000 = " \
         file://0023-efi_loader-fix-null-pointer-exception-with-get_image.patch \
         file://0024-arm-corstone1000-add-mmc-for-fvp.patch \
         file://0025-corstone1000-use-a-compressed-kernel.patch \
+        file://0026-Introduce-external-sys-driver-to-device-tree.patch \
       "
 
 #