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-rw-r--r--drivers/of/Kconfig6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig
index ad3fcad4d75b..37c2ccbefecd 100644
--- a/drivers/of/Kconfig
+++ b/drivers/of/Kconfig
@@ -43,6 +43,7 @@ config OF_FLATTREE
 
 config OF_EARLY_FLATTREE
 	bool
+	select DMA_DECLARE_COHERENT if HAS_DMA
 	select OF_FLATTREE
 
 config OF_PROMTREE
@@ -81,10 +82,9 @@ config OF_MDIO
 	  OpenFirmware MDIO bus (Ethernet PHY) accessors
 
 config OF_RESERVED_MEM
-	depends on OF_EARLY_FLATTREE
 	bool
-	help
-	  Helpers to allow for reservation of memory regions
+	depends on OF_EARLY_FLATTREE
+	default y if DMA_DECLARE_COHERENT || DMA_CMA
 
 config OF_RESOLVE
 	bool