arm: at91: Add support for DENX MA5D4 SoM and EVK

Add support for DENX MA5D4 SoM and MA5D4EVK board, based on the
Atmel SAMA5D4 SoC. The SoM contains the SoC, eMMC, SPI NOR, SPI
CAN controllers and DRAM, the baseboard contains UART connectors,
ethernet port, microSD slot, LCD header, 2x CAN connector and a
lot of expansion headers.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Andreas Bießmann <andreas.devel@googlemail.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Andreas Bießmann <andreas.devel@googlemail.com>
diff --git a/configs/ma5d4evk_defconfig b/configs/ma5d4evk_defconfig
new file mode 100644
index 0000000..88102d9
--- /dev/null
+++ b/configs/ma5d4evk_defconfig
@@ -0,0 +1,11 @@
+CONFIG_ARM=y
+CONFIG_ARCH_AT91=y
+CONFIG_TARGET_MA5D4EVK=y
+CONFIG_SPL=y
+CONFIG_SYS_EXTRA_OPTIONS="SAMA5D4"
+# CONFIG_CMD_IMI is not set
+# CONFIG_CMD_IMLS is not set
+# CONFIG_CMD_LOADS is not set
+# CONFIG_CMD_FLASH is not set
+# CONFIG_CMD_FPGA is not set
+CONFIG_SPI_FLASH=y