board: sama5d4_xplained: update to support DM/DT

Update the configuration files to support the device tree and
driver model, so do SPL. The device clock and pins configuration
are handled by the clock and the pinctrl drivers respectively.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Andreas Bießmann <andreas@biessmann.org>
diff --git a/configs/sama5d4_xplained_nandflash_defconfig b/configs/sama5d4_xplained_nandflash_defconfig
index 0c47883..0f6c2f4 100644
--- a/configs/sama5d4_xplained_nandflash_defconfig
+++ b/configs/sama5d4_xplained_nandflash_defconfig
@@ -6,7 +6,10 @@
 CONFIG_SPL_LIBGENERIC_SUPPORT=y
 CONFIG_SPL_SERIAL_SUPPORT=y
 CONFIG_SPL_NAND_SUPPORT=y
+CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_FIT=y
+CONFIG_SPL_DRIVERS_MISC_SUPPORT=y
+CONFIG_DEFAULT_DEVICE_TREE="at91-sama5d4_xplained"
 CONFIG_SYS_EXTRA_OPTIONS="SAMA5D4,SYS_USE_NANDFLASH"
 CONFIG_BOOTDELAY=3
 # CONFIG_DISPLAY_BOARDINFO is not set
@@ -24,10 +27,35 @@
 CONFIG_CMD_DHCP=y
 CONFIG_CMD_PING=y
 CONFIG_CMD_FAT=y
+CONFIG_OF_CONTROL=y
+CONFIG_SPL_OF_CONTROL=y
+CONFIG_OF_SPL_REMOVE_PROPS="interrupts interrupt-parent dma-names dmas"
+CONFIG_DM=y
+CONFIG_SPL_DM=y
+CONFIG_CLK=y
+CONFIG_SPL_CLK=y
+CONFIG_CLK_AT91=y
+CONFIG_AT91_UTMI=y
+CONFIG_AT91_H32MX=y
+CONFIG_DM_GPIO=y
+CONFIG_AT91_GPIO=y
+CONFIG_DM_MMC=y
+CONFIG_GENERIC_ATMEL_MCI=y
+CONFIG_DM_SPI_FLASH=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_ATMEL=y
+CONFIG_DM_ETH=y
+CONFIG_MACB=y
+CONFIG_PINCTRL=y
+CONFIG_SPL_PINCTRL=y
+CONFIG_PINCTRL_AT91=y
+CONFIG_DM_SERIAL=y
+CONFIG_ATMEL_USART=y
+CONFIG_DM_SPI=y
+CONFIG_ATMEL_SPI=y
 CONFIG_USB=y
+CONFIG_DM_USB=y
+CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_STORAGE=y
 CONFIG_USB_GADGET=y
 CONFIG_USB_GADGET_ATMEL_USBA=y
-CONFIG_OF_LIBFDT=y