diff --git a/hispark_phoenix/linux/system/cfg/init.Hi3751V350.cfg b/hispark_phoenix/linux/system/cfg/init.Hi3751V350.cfg
index cb1a836e3c837fd003c1f8bb91655a47f2ce3811..dfd57294ad1aee31ac35becd48bc8255a87a18ec 100644
--- a/hispark_phoenix/linux/system/cfg/init.Hi3751V350.cfg
+++ b/hispark_phoenix/linux/system/cfg/init.Hi3751V350.cfg
@@ -6,6 +6,8 @@
                 "setparam persist.hdc.port 34567",
                 "start hdcd",
                 "chmod 666 /dev/mali",
+                "chmod 666 /dev/dma_heap/system",
+                "chmod 666 /dev/dma_heap/linux,cma",
                 "chown system graphics /dev/mali"
             ]
         }
@@ -20,4 +22,4 @@
             "disabled" : 1
         }
     ]
-}
\ No newline at end of file
+}