diff --git a/target/linux/cns3xxx/config-3.3 b/target/linux/cns3xxx/config-3.3
index 8345888ad3..a6f3bc7040 100644
--- a/target/linux/cns3xxx/config-3.3
+++ b/target/linux/cns3xxx/config-3.3
@@ -45,6 +45,7 @@ CONFIG_DEBUG_LL=y
 CONFIG_DEBUG_LL_UART_NONE=y
 # CONFIG_DEBUG_USER is not set
 CONFIG_DECOMPRESS_LZMA=y
+CONFIG_DMA_CACHE_RWFO=y
 # CONFIG_DWC_DEBUG is not set
 # CONFIG_DWC_DEVICE_ONLY is not set
 # CONFIG_DWC_HOST_ONLY is not set