diff --git a/config/openiotsdk/cmake/sdk.cmake b/config/openiotsdk/cmake/sdk.cmake
index 25851c2d7ded2f..dbe54d4d122c37 100644
--- a/config/openiotsdk/cmake/sdk.cmake
+++ b/config/openiotsdk/cmake/sdk.cmake
@@ -42,6 +42,22 @@ FetchContent_Declare(
     GIT_PROGRESS   ON
 )
 
+# Apply a patch to TF-M to support GCC 12
+FetchContent_Declare(
+    trusted-firmware-m
+    GIT_REPOSITORY  https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git
+    GIT_TAG         d0c0a67f1b412e89d09b0987091c12998c4e4660
+    GIT_SHALLOW     OFF
+    GIT_PROGRESS    ON
+    # Note: This prevents FetchContent_MakeAvailable() from calling
+    # add_subdirectory() on the fetched repository. TF-M needs a
+    # standalone build because it relies on functions defined in its
+    # own toolchain files and contains paths that reference the
+    # top-level project instead of its own project.
+    SOURCE_SUBDIR   NONE
+    PATCH_COMMAND   git reset --hard --quiet && git clean --force -dx --quiet && git apply ${CMAKE_CURRENT_LIST_DIR}/tf-m.patch
+)
+
 # Open IoT SDK configuration
 set(IOTSDK_FETCH_LIST
     mcu-driver-reference-platforms-for-arm
diff --git a/config/openiotsdk/cmake/tf-m.patch b/config/openiotsdk/cmake/tf-m.patch
new file mode 100644
index 00000000000000..975696d5e63752
--- /dev/null
+++ b/config/openiotsdk/cmake/tf-m.patch
@@ -0,0 +1,12 @@
+diff --git a/toolchain_GNUARM.cmake b/toolchain_GNUARM.cmake
+index d044ed4a5..3d8f64d17 100644
+--- a/toolchain_GNUARM.cmake
++++ b/toolchain_GNUARM.cmake
+@@ -71,7 +71,6 @@ macro(tfm_toolchain_reset_linker_flags)
+         --entry=Reset_Handler
+         --specs=nano.specs
+         LINKER:-check-sections
+-        LINKER:-fatal-warnings
+         LINKER:--gc-sections
+         LINKER:--no-wchar-size-warning
+         ${MEMORY_USAGE_FLAG}