arm: mvebu: Enable DM_SERIAL on AXP / A38x boards

This patch enables DM_SERIAL for all ARCH_MVEBU boards (AXP & A38x).

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Luka Perkov <luka.perkov@sartura.hr>

arch/arm/Kconfig

@@ -112,6 +112,7 @@ config ARCH_MVEBU
 	select OF_CONTROL
 	select OF_SEPARATE
 	select DM
+	select DM_SERIAL
 
 config TARGET_DEVKIT3250
 	bool "Support devkit3250"

include/configs/mv-common.h

@@ -39,11 +39,17 @@
 /*
  * NS16550 Configuration
  */
+#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_DM_SERIAL)
+#define CONFIG_DW_SERIAL
+#endif
+
 #define CONFIG_SYS_NS16550
 #define CONFIG_SYS_NS16550_SERIAL
-#define CONFIG_SYS_NS16550_REG_SIZE	(-4)
 #define CONFIG_SYS_NS16550_CLK		CONFIG_SYS_TCLK
+#if !defined(CONFIG_DM_SERIAL)
+#define CONFIG_SYS_NS16550_REG_SIZE	(-4)
 #define CONFIG_SYS_NS16550_COM1		MV_UART_CONSOLE_BASE
+#endif
 
 /*
  * Serial Port configuration