mv-ddr-marvell: new package

This package adds Marvell Armada SoC DDR training algorithms.
This code is not built separately, it is needed as dependency
to build ATF firmware for Marvell Armada SoCs.

Signed-off-by: Sergey Matyukevich <geomatsi@gmail.com>
[Thomas:
 - Remove MV_DDR_MARVELL_SRC_SYMLINK, ATF will directly pick up the
   mv-ddr-marvell code from where it is.
 - Use "mv-ddr-marvell" as the Config.in prompt, and in the comment
   header of the .mk file.
 - Add upstream URL in Config.in help text
 - Adjust license information.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

DEVELOPERS

@@ -1516,6 +1516,7 @@ F:	package/lua-resty-http/
 F:	package/mpir/
 
 N:	Sergey Matyukevich <geomatsi@gmail.com>
+F:	boot/mv-ddr-marvell/
 F:	board/linksprite/pcduino
 F:	board/orangepi/orangepi-zero
 F:	board/orangepi/orangepi-one

boot/Config.in

@@ -10,6 +10,7 @@ source "boot/boot-wrapper-aarch64/Config.in"
 source "boot/grub2/Config.in"
 source "boot/gummiboot/Config.in"
 source "boot/lpc32xxcdl/Config.in"
+source "boot/mv-ddr-marvell/Config.in"
 source "boot/mxs-bootlets/Config.in"
 source "boot/s500-bootloader/Config.in"
 source "boot/syslinux/Config.in"

boot/mv-ddr-marvell/Config.in

@@ -0,0 +1,10 @@
+config BR2_TARGET_MV_DDR_MARVELL
+	bool "mv-ddr-marvell"
+	depends on BR2_aarch64
+	help
+	  Marvell keeps algorithms for DDR training in a separate
+	  repository. This code is not built separately, it is needed
+	  as a dependency to build ATF firmware for Marvell Armada 7040
+	  and 8040 SoCs.
+
+	  https://github.com/MarvellEmbeddedProcessors/mv-ddr-marvell/

boot/mv-ddr-marvell/mv-ddr-marvell.hash

@@ -0,0 +1,2 @@
+# Locally calculated
+sha256 d413546367ffa3b5f4373a777b9efeb32dcc74d6106897c248935ecb79afc454 mv-ddr-marvell-656440a9690f3d07be9e3d2c39d7cf56fd96eb7b.tar.gz

boot/mv-ddr-marvell/mv-ddr-marvell.mk

@@ -0,0 +1,12 @@
+################################################################################
+#
+# mv-ddr-marvell
+#
+################################################################################
+
+MV_DDR_MARVELL_VERSION = 656440a9690f3d07be9e3d2c39d7cf56fd96eb7b
+MV_DDR_MARVELL_SITE = $(call github,MarvellEmbeddedProcessors,mv-ddr-marvell,$(MV_DDR_MARVELL_VERSION))
+MV_DDR_MARVELL_LICENSE = GPL-2.0+ or LGPL-2.1 with freertos-exception-2.0, BSD-3-Clause, Marvell Commercial
+MV_DDR_MARVELL_LICENSE_FILES = ddr3_init.c
+
+$(eval $(generic-package))