diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index ece7d87d4c..bd95f70b61 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -100,6 +100,7 @@ config CONS_INDEX
 config DM_SERIAL
 	bool "Enable Driver Model for serial drivers"
 	depends on DM
+	select SYS_MALLOC_F
 	help
 	  Enable driver model for serial. This replaces
 	  drivers/serial/serial.c with the serial uclass, which
@@ -136,6 +137,7 @@ config SERIAL_SEARCH_ALL
 config SPL_DM_SERIAL
 	bool "Enable Driver Model for serial drivers in SPL"
 	depends on DM_SERIAL && SPL_DM
+	select SYS_SPL_MALLOC_F
 	default y
 	help
 	  Enable driver model for serial in SPL. This replaces
@@ -146,6 +148,7 @@ config SPL_DM_SERIAL
 config TPL_DM_SERIAL
 	bool "Enable Driver Model for serial drivers in TPL"
 	depends on DM_SERIAL && TPL_DM
+	select SYS_TPL_MALLOC_F
 	default y if TPL && DM_SERIAL
 	help
 	  Enable driver model for serial in TPL. This replaces
diff --git a/dts/Kconfig b/dts/Kconfig
index 64c98dd723..d3313dd08f 100644
--- a/dts/Kconfig
+++ b/dts/Kconfig
@@ -25,6 +25,7 @@ menu "Device Tree Control"
 config OF_CONTROL
 	bool "Run-time configuration via Device Tree"
 	select DTC
+	select OF_LIBFDT if !OF_PLATDATA
 	help
 	  This feature provides for run-time configuration of U-Boot
 	  via a flattened device tree.
@@ -42,6 +43,7 @@ config OF_BOARD_FIXUP
 config SPL_OF_CONTROL
 	bool "Enable run-time configuration via Device Tree in SPL"
 	depends on SPL && OF_CONTROL
+	select SPL_OF_LIBFDT if !SPL_OF_PLATDATA
 	help
 	  Some boards use device tree in U-Boot but only have 4KB of SRAM
 	  which is not enough to support device tree. Disable this option to
@@ -50,6 +52,7 @@ config SPL_OF_CONTROL
 config TPL_OF_CONTROL
 	bool "Enable run-time configuration via Device Tree in TPL"
 	depends on TPL && OF_CONTROL
+	select TPL_OF_LIBFDT if !TPL_OF_PLATDATA
 	help
 	  Some boards use device tree in U-Boot but only have 4KB of SRAM
 	  which is not enough to support device tree. Enable this option to