diff --git a/config/kernel/linux-sun7i-default.config b/config/kernel/linux-sun7i-default.config
index 7bcdd5a17..d38af728c 100644
--- a/config/kernel/linux-sun7i-default.config
+++ b/config/kernel/linux-sun7i-default.config
@@ -442,6 +442,7 @@ CONFIG_FLATMEM_MANUAL=y
 CONFIG_FLATMEM=y
 CONFIG_FLAT_NODE_MEM_MAP=y
 CONFIG_HAVE_MEMBLOCK=y
+CONFIG_MEMORY_ISOLATION=y
 CONFIG_PAGEFLAGS_EXTENDED=y
 CONFIG_SPLIT_PTLOCK_CPUS=4
 CONFIG_COMPACTION=y
@@ -1165,7 +1166,19 @@ CONFIG_REGMAP_I2C=y
 CONFIG_REGMAP_SPI=y
 CONFIG_DMA_SHARED_BUFFER=y
 # CONFIG_SYNC is not set
-# CONFIG_CMA is not set
+CONFIG_CMA=y
+# CONFIG_CMA_DEBUG is not set
+
+#
+# Default contiguous memory area size:
+#
+CONFIG_CMA_SIZE_MBYTES=16
+CONFIG_CMA_SIZE_SEL_MBYTES=y
+# CONFIG_CMA_SIZE_SEL_PERCENTAGE is not set
+# CONFIG_CMA_SIZE_SEL_MIN is not set
+# CONFIG_CMA_SIZE_SEL_MAX is not set
+CONFIG_CMA_ALIGNMENT=8
+CONFIG_CMA_AREAS=7
 CONFIG_CONNECTOR=y
 CONFIG_PROC_EVENTS=y
 # CONFIG_MTD is not set