arm64: mvebu: a8k: Add distro boot support

The various load address values are taken from the a37xx configuration
and match the dowstream 'u-boot-2017.03-armada-17.10' release where
appropriate.

Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
Signed-off-by: Stefan Roese <sr@denx.de>

include/configs/mvebu_armada-8k.h

@@ -106,4 +106,23 @@
 #define CONFIG_E1000
 #endif
 
+#define BOOT_TARGET_DEVICES(func) \
+	func(MMC, mmc, 1) \
+	func(MMC, mmc, 0) \
+	func(USB, usb, 0) \
+	func(SCSI, scsi, 0) \
+	func(PXE, pxe, na) \
+	func(DHCP, dhcp, na)
+
+#include <config_distro_bootcmd.h>
+
+#define CONFIG_EXTRA_ENV_SETTINGS	\
+	"scriptaddr=0x4d00000\0"	\
+	"pxefile_addr_r=0x4e00000\0"	\
+	"fdt_addr_r=0x4f00000\0"	\
+	"kernel_addr_r=0x5000000\0"	\
+	"ramdisk_addr_r=0x8000000\0"	\
+	"fdtfile=marvell/" CONFIG_DEFAULT_DEVICE_TREE ".dtb\0" \
+	BOOTENV
+
 #endif /* _CONFIG_MVEBU_ARMADA_8K_H */