diff --git a/meta-arm-bsp/recipes-bsp/trusted-firmware-m/files/corstone1000/0012-Platform-corstone1000-Increase-number-of-assets.patch b/meta-arm-bsp/recipes-bsp/trusted-firmware-m/files/corstone1000/0012-Platform-corstone1000-Increase-number-of-assets.patch
new file mode 100644
index 00000000..d2fc332d
--- /dev/null
+++ b/meta-arm-bsp/recipes-bsp/trusted-firmware-m/files/corstone1000/0012-Platform-corstone1000-Increase-number-of-assets.patch
@@ -0,0 +1,36 @@
+From 34263d1ea99da7b8a680a80601a73149bc9530e5 Mon Sep 17 00:00:00 2001
+From: Emekcan Aras <emekcan.aras@arm.com>
+Date: Fri, 21 Apr 2023 15:17:21 +0100
+Subject: [PATCH] Platform: corstone1000: Increase number of assets
+
+As Corstone1000 stores at boot time few efi variables.
+Therefore, number of assets is increased to compansate this early usage.
+
+Upstream-Status: Submitted [https://review.trustedfirmware.org/c/TF-M/trusted-firmware-m/+/20656]
+Signed-off-by: Mohamed Omar Asaker <mohamed.omarasaker@arm.com>
+Signed-off-by: Emekcan Aras <emekcan.aras@arm.com>
+Change-Id: Id8555a09335ce13b80c07a33c4d913f5cb0f9084
+---
+ platform/ext/target/arm/corstone1000/config_tfm_target.h | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+diff --git a/platform/ext/target/arm/corstone1000/config_tfm_target.h b/platform/ext/target/arm/corstone1000/config_tfm_target.h
+index bf8d2f95f..e96836663 100644
+--- a/platform/ext/target/arm/corstone1000/config_tfm_target.h
++++ b/platform/ext/target/arm/corstone1000/config_tfm_target.h
+@@ -16,4 +16,12 @@
+ #undef PLATFORM_SERVICE_OUTPUT_BUFFER_SIZE
+ #define PLATFORM_SERVICE_OUTPUT_BUFFER_SIZE    256
+
++/* The maximum number of assets to be stored in the Internal Trusted Storage. */
++#undef ITS_NUM_ASSETS
++#define ITS_NUM_ASSETS       20
++
++/* The maximum number of assets to be stored in the Protected Storage area. */
++#undef PS_NUM_ASSETS
++#define PS_NUM_ASSETS        20
++
+ #endif /* __CONFIG_TFM_TARGET_H__ */
+--
+2.17.1
+
diff --git a/meta-arm-bsp/recipes-bsp/trusted-firmware-m/trusted-firmware-m-1.7.0-corstone1000.inc b/meta-arm-bsp/recipes-bsp/trusted-firmware-m/trusted-firmware-m-1.7.0-corstone1000.inc
index 06e15307..68845cf9 100644
--- a/meta-arm-bsp/recipes-bsp/trusted-firmware-m/trusted-firmware-m-1.7.0-corstone1000.inc
+++ b/meta-arm-bsp/recipes-bsp/trusted-firmware-m/trusted-firmware-m-1.7.0-corstone1000.inc
@@ -47,6 +47,7 @@ SRC_URI:append:corstone1000 = " \
     file://0009-Platform-corstone1000-fix-flash-reading-issue-for-fi.patch      \
     file://0010-Platform-corstone1000-Adds-compiler-flags-to-FWU-age.patch      \
     file://0011-Platform-corstone1000-adjust-PS-asset-configuration.patch       \
+    file://0012-Platform-corstone1000-Increase-number-of-assets.patch           \
     file://corstone1000/rwx.patch                                               \
     "