serial: lpuart: Move CONFIG_FSL_LPUART to Kconfig

LPUART is seen on Freescale VF610 and QorIQ Layerscape devices.
Create a Kconfig option and move it to defconfig for all boards
that have this serial driver.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Stefan Agner <stefan.agner@toradex.com>
Acked-by: Simon Glass <sjg@chromium.org>

configs/colibri_vf_defconfig

@@ -8,3 +8,4 @@ CONFIG_CMD_GPIO=y
 CONFIG_DM=y
 CONFIG_NAND_VF610_NFC=y
 CONFIG_SYS_NAND_VF610_NFC_60_ECC_BYTES=y
+CONFIG_FSL_LPUART=y

configs/colibri_vf_dtb_defconfig

@@ -11,3 +11,4 @@ CONFIG_OF_CONTROL=y
 CONFIG_DM=y
 CONFIG_NAND_VF610_NFC=y
 CONFIG_SYS_NAND_VF610_NFC_60_ECC_BYTES=y
+CONFIG_FSL_LPUART=y

configs/ls1021aqds_ddr4_nor_lpuart_defconfig

@@ -4,3 +4,4 @@ CONFIG_SYS_EXTRA_OPTIONS="SYS_FSL_DDR4,LPUART"
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_NETDEVICES=y
 CONFIG_E1000=y
+CONFIG_FSL_LPUART=y

configs/ls1021aqds_nor_lpuart_defconfig

@@ -4,3 +4,4 @@ CONFIG_SYS_EXTRA_OPTIONS="LPUART"
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_NETDEVICES=y
 CONFIG_E1000=y
+CONFIG_FSL_LPUART=y

configs/ls1021atwr_nor_lpuart_defconfig

@@ -4,3 +4,4 @@ CONFIG_SYS_EXTRA_OPTIONS="LPUART"
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_NETDEVICES=y
 CONFIG_E1000=y
+CONFIG_FSL_LPUART=y

configs/pcm052_defconfig

@@ -3,3 +3,4 @@ CONFIG_TARGET_PCM052=y
 CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/phytec/pcm052/imximage.cfg,ENV_IS_IN_NAND"
 CONFIG_NAND_VF610_NFC=y
 CONFIG_SYS_NAND_BUSWIDTH_16BIT=y
+CONFIG_FSL_LPUART=y

configs/vf610twr_defconfig

@@ -6,3 +6,4 @@ CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/freescale/vf610twr/imximage.cfg,ENV_I
 CONFIG_NAND_VF610_NFC=y
 CONFIG_SYS_NAND_BUSWIDTH_16BIT=y
 CONFIG_SPI_FLASH=y
+CONFIG_FSL_LPUART=y

configs/vf610twr_nand_defconfig

@@ -6,3 +6,4 @@ CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/freescale/vf610twr/imximage.cfg,ENV_I
 CONFIG_NAND_VF610_NFC=y
 CONFIG_SYS_NAND_BUSWIDTH_16BIT=y
 CONFIG_SPI_FLASH=y
+CONFIG_FSL_LPUART=y

drivers/serial/Kconfig

@@ -228,6 +228,12 @@ config ALTERA_UART
 	  Select this to enable an UART for Altera devices. Please find
 	  details on the "Embedded Peripherals IP User Guide" of Altera.
 
+config FSL_LPUART
+	bool "Freescale LPUART support"
+	help
+	  Select this to enable a Low Power UART for Freescale VF610 and
+	  QorIQ Layerscape devices.
+
 config SYS_NS16550
 	bool "NS16550 UART or compatible"
 	help

include/configs/colibri_vf.h

@@ -36,7 +36,6 @@
 
 #define CONFIG_BOARD_EARLY_INIT_F
 
-#define CONFIG_FSL_LPUART
 #define LPUART_BASE			UART0_BASE
 
 /* Allow to overwrite serial and ethaddr */

include/configs/ls1021aqds.h

@@ -371,7 +371,6 @@ unsigned long get_board_ddr_clk(void);
  * Serial Port
  */
 #ifdef CONFIG_LPUART
-#define CONFIG_FSL_LPUART
 #define CONFIG_LPUART_32B_REG
 #else
 #define CONFIG_CONS_INDEX		1

include/configs/ls1021atwr.h

@@ -266,7 +266,6 @@
  * Serial Port
  */
 #ifdef CONFIG_LPUART
-#define CONFIG_FSL_LPUART
 #define CONFIG_LPUART_32B_REG
 #else
 #define CONFIG_CONS_INDEX		1

include/configs/pcm052.h

@@ -27,7 +27,6 @@
 
 #define CONFIG_BOARD_EARLY_INIT_F
 
-#define CONFIG_FSL_LPUART
 #define LPUART_BASE			UART1_BASE
 
 /* Allow to overwrite serial and ethaddr */

include/configs/vf610twr.h

@@ -34,7 +34,6 @@
 
 #define CONFIG_BOARD_EARLY_INIT_F
 
-#define CONFIG_FSL_LPUART
 #define LPUART_BASE			UART1_BASE
 
 /* Allow to overwrite serial and ethaddr */