armv8: ls1046ardb: Add LS1046ARDB board support

LS1046ARDB Specification:
-------------------------
Memory subsystem:
 * 8GByte DDR4 SDRAM (64bit bus)
 * 512 Mbyte NAND flash
 * Two 64 Mbyte high-speed SPI flash
 * SD connector to interface with the SD memory card
 * On-board 4G eMMC

Ethernet:
 * Two XFI 10G ports
 * Two SGMII ports
 * Two RGMII ports

PCIe:
 * PCIe1 (SerDes2 Lane0) to miniPCIe slot
 * PCIe2 (SerDes2 Lane1) to x2 PCIe slot
 * PCIe3 (SerDes2 Lane2) to x4 PCIe slot

SATA:
 * SerDes2 Lane3 to SATA port

USB 3.0: one super speed USB 3.0 type A port
	 one Micro-AB port

UART: supports two UARTs up to 115200 bps for console

Signed-off-by: Mingkai Hu <mingkai.hu@nxp.com>
Signed-off-by: Shaohui Xie <Shaohui.Xie@nxp.com>
Signed-off-by: Gong Qianyu <Qianyu.Gong@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
diff --git a/configs/ls1046ardb_qspi_defconfig b/configs/ls1046ardb_qspi_defconfig
new file mode 100644
index 0000000..67ef3ce
--- /dev/null
+++ b/configs/ls1046ardb_qspi_defconfig
@@ -0,0 +1,26 @@
+CONFIG_ARM=y
+CONFIG_TARGET_LS1046ARDB=y
+CONFIG_DM_SPI=y
+CONFIG_DEFAULT_DEVICE_TREE="fsl-ls1046a-rdb"
+CONFIG_FIT=y
+CONFIG_FIT_VERBOSE=y
+CONFIG_OF_BOARD_SETUP=y
+CONFIG_SYS_EXTRA_OPTIONS="SYS_FSL_DDR4"
+CONFIG_QSPI_BOOT=y
+CONFIG_BOOTDELAY=10
+CONFIG_HUSH_PARSER=y
+# CONFIG_CMD_IMLS is not set
+CONFIG_CMD_MMC=y
+CONFIG_CMD_SF=y
+CONFIG_CMD_I2C=y
+CONFIG_CMD_DHCP=y
+CONFIG_CMD_MII=y
+CONFIG_CMD_PING=y
+CONFIG_CMD_CACHE=y
+CONFIG_CMD_EXT2=y
+CONFIG_CMD_FAT=y
+CONFIG_OF_CONTROL=y
+CONFIG_DM=y
+CONFIG_SPI_FLASH=y
+CONFIG_SYS_NS16550=y
+CONFIG_FSL_QSPI=y