diff --git a/package/utils/fitblk/Makefile b/package/utils/fitblk/Makefile
new file mode 100644
index 00000000000..cb9e7ebb400
--- /dev/null
+++ b/package/utils/fitblk/Makefile
@@ -0,0 +1,41 @@
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=fitblk
+PKG_RELEASE:=1
+PKG_LICENSE:=GPL-2.0-only
+PKG_MAINTAINER:=Daniel Golle <daniel@makrotopia.org>
+
+PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME)
+
+PKG_FLAGS:=nonshared
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/fitblk
+  HIDDEN:=1
+  SECTION:=base
+  CATEGORY:=Base system
+  TITLE:=fitblk firmware release tool
+  DEPENDS:=@LINUX_6_1
+endef
+
+define Package/fitblk/description
+Release uImage.FIT block devices using ioctl.
+endef
+
+define Build/Configure
+endef
+
+define Build/Compile
+	$(MAKE) -C $(PKG_BUILD_DIR) \
+		CC="$(TARGET_CC)" \
+		CFLAGS="$(TARGET_CFLAGS) -Wall -Werror" \
+		LDFLAGS="$(TARGET_LDFLAGS)"
+endef
+
+define Package/fitblk/install
+	$(INSTALL_DIR) $(1)/usr/sbin
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/fitblk $(1)/usr/sbin/
+endef
+
+$(eval $(call BuildPackage,fitblk))
diff --git a/package/utils/fitblk/src/Makefile b/package/utils/fitblk/src/Makefile
new file mode 100644
index 00000000000..064764c17d2
--- /dev/null
+++ b/package/utils/fitblk/src/Makefile
@@ -0,0 +1,7 @@
+all: fitblk
+
+fitblk:
+	$(CC) $(CFLAGS) -o $@ fitblk.c $(LDFLAGS)
+
+clean:
+	rm -f fitblk
diff --git a/package/utils/fitblk/src/fitblk.c b/package/utils/fitblk/src/fitblk.c
new file mode 100644
index 00000000000..059ba6098ce
--- /dev/null
+++ b/package/utils/fitblk/src/fitblk.c
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <stdio.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <linux/fitblk.h>
+
+static int fitblk_release(char *device)
+{
+	int fd, ret;
+
+	fd = open(device, O_RDONLY);
+	if (fd == -1)
+		return errno;
+
+	ret = ioctl(fd, FITBLK_RELEASE, NULL);
+	close(fd);
+
+	if (ret == -1)
+		return errno;
+
+	return 0;
+}
+
+int main(int argc, char *argp[])
+{
+	int ret;
+
+	if (argc != 2) {
+		fprintf(stderr, "Release uImage.FIT sub-image block device\n");
+		fprintf(stderr, "Syntax: %s /dev/fitXXX\n", argp[0]);
+		return -EINVAL;
+	}
+
+	ret = fitblk_release(argp[1]);
+	if (ret)
+		fprintf(stderr, "fitblk: error releasing %s: %s\n", argp[1],
+			strerror(ret));
+	else
+		fprintf(stderr, "fitblk: %s released\n", argp[1]);
+
+	return ret;
+}