Since U-Boot supported SPL for Zynq boards at v2014.04 release, it
became much easier to build a system. At that time, however, users
still needed to manually copy ps7_init.c/h to the U-Boot source tree
to generate a working SPL image because ps7_init.c/h output from
Xilinx tools are not compatible with GPL.
Later, the license problem was solved when Xilinx tools became able
to output the GPL-compatible variants (ps7_init_gpl.c/h) as well.
U-Boot v2015.07 or later includes ps7_init_gpl.c/h for major Zynq
boards so that users can build a boot image straight away.
Now Buildroot supports 3 boards (Zedboard, MicroZed, ZC706) without
any manual intervention. This is a good thing itself, but commit
b9cd72cdbf ("zynq_zc706: bump U-Boot to xilinx-v2016.2") entirely
dropped the information about custom ps7_init files.
This commit provides up-to-date guidance for how to customize the
ps7_init files.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Matt Weber <matthew.weber@rockwellcollins.com>
Acked-by: Alistair Francis <alistair.francis@xilinx.com>
[Thomas: rewording and formatting tweaks.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The recent U-Boot adopts Kconfig for its configuration system.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Matt Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
The readme.txt for the three boards are almost the same, so merge
them into board/zynq/readme.txt.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Matt Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
