diff --git a/device/rockchip/ok3568c/blobs/rk3568_bl31_v1.44.elf b/device/rockchip/ok3568c/blobs/rk3568_bl31_v1.44.elf
new file mode 100644
index 0000000..b1cc01b
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diff --git a/device/rockchip/ok3568c/blobs/rk3568_ddr_1560MHz_v1.21.bin b/device/rockchip/ok3568c/blobs/rk3568_ddr_1560MHz_v1.21.bin
new file mode 100644
index 0000000..7ddbd99
Binary files /dev/null and b/device/rockchip/ok3568c/blobs/rk3568_ddr_1560MHz_v1.21.bin differ
diff --git a/utils/uboot.py b/utils/uboot.py
index 512ecf8..353d5a2 100644
--- a/utils/uboot.py
+++ b/utils/uboot.py
@@ -9,19 +9,37 @@ from utils.patch import apply_uboot_patches
 
 
 def build_uboot(TMP_DIR, BASE_DIR, config, vendor, device):
-    uboot_git = config.get("UBOOT")
-    uboot_branch = config.get("UBOOT_VERSION")
-
     if "UBOOT" not in config or "UBOOT_VERSION" not in config:
         print("U-Boot configuration not found. Skipping U-Boot build.")
         return
 
+    uboot_git = config.get("UBOOT")
+    uboot_branch = config.get("UBOOT_VERSION")
+    uboot_config = config.get("UBOOT_CONFIG")
+    uboot_build_cmd = config.get("UBOOT_BUILD")
+    mkimage_cmd = config.get("MKIMAGE_CMD")
+
+    blobs_dir = os.path.join(BASE_DIR, "device", vendor, device, "blobs")
+    rk_ddr = os.path.join(blobs_dir, config.get("RK_DDR", ""))
+    bl31 = os.path.join(blobs_dir, config.get("BL31", ""))
+
+    if not os.path.isfile(rk_ddr) or not os.path.isfile(bl31):
+        print(f"Missing required files in blobs directory: {rk_ddr}, {bl31}")
+        return
+
     uboot_dir = os.path.join(TMP_DIR, vendor, device, "u-boot")
     clone_repo(uboot_git, uboot_branch, uboot_dir, "u-boot")
     apply_uboot_patches(BASE_DIR, vendor, device, uboot_dir)
 
-
-    #os.chdir(uboot_dir)
-    #subprocess.run(["make", config["UBOOT_CONFIG"]], check=True)
-    #subprocess.run(["make", "-j" + NUM_CORES], check=True)
+    os.chdir(uboot_dir)
+    try:
+        print(f"Building U-Boot for {vendor}/{device} {uboot_config}...")
+        subprocess.run(["make", uboot_config], check=True)
+        build_command = uboot_build_cmd.format(BL31=bl31, ARCH=config.get("ARCH", "aarch64"))
+        subprocess.run(build_command, shell=True, check=True)
+        mkimage_command = mkimage_cmd.format(BOOT_SOC=config.get("BOOT_SOC", ""), RK_DDR=rk_ddr)
+        subprocess.run(mkimage_command, shell=True, check=True)
+        print("U-Boot build completed successfully.")
+    except subprocess.CalledProcessError as e:
+        print(f"Error during U-Boot build: {e}")