tools: add support for Marvell doimage

Add Marvell "doimage" utility support.
The "doimage" utility allows to create flash images compatible
with Marvell BootROM image format. Additionally this tool
allows the flash image parsing and verification.

Change-Id: Ie8d7ccd0cc2978684e7eecb695f375395fc749ee
Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
diff --git a/tools/doimage/doimage.mk b/tools/doimage/doimage.mk
new file mode 100644
index 0000000..2b751d4
--- /dev/null
+++ b/tools/doimage/doimage.mk
@@ -0,0 +1,15 @@
+#
+# Copyright (C) 2018 Marvell International Ltd.
+#
+# SPDX-License-Identifier:     BSD-3-Clause
+# https://spdx.org/licenses
+
+DOIMAGE_FLAGS		?= 	-l 0x4100000 -e 0x4100000
+
+
+#NAND params
+#Open and update the below when using NAND as a boot device.
+
+CONFIG_MVEBU_NAND_BLOCK_SIZE	:= 256
+CONFIG_MVEBU_NAND_CELL_TYPE	:= SLC
+NAND_DOIMAGE_FLAGS := -t $(CONFIG_MVEBU_NAND_CELL_TYPE) -n $(CONFIG_MVEBU_NAND_BLOCK_SIZE)