diff --git a/imx/u-boot_boot_script b/imx/u-boot_boot_script
index a2ee4fe..d995851 100644
--- a/imx/u-boot_boot_script
+++ b/imx/u-boot_boot_script
@@ -1,3 +1,5 @@
+env set fdt_addr 0x45000000;
+env set initrd_addr 0x45800000;
 run loadfdt;
 fdt addr ${fdt_addr};
 fdt get value optee_compatible /firmware/optee compatible;
@@ -19,4 +21,4 @@
 	echo "Booting on the persistent file system ..."
 	run loadimage;run mmcargs;
 	booti ${loadaddr} - ${fdt_addr};
-fi;
\ No newline at end of file
+fi;