]> git.sur5r.net Git - u-boot/commit
sunxi: (mksunxiboot) signature to indicate "sunxi" SPL variant
authorBernhard Nortmann <bernhard.nortmann@web.de>
Thu, 17 Sep 2015 16:52:51 +0000 (18:52 +0200)
committerHans de Goede <hdegoede@redhat.com>
Tue, 29 Sep 2015 09:50:07 +0000 (11:50 +0200)
commita188438175bd5fb4ef0440c9fdd0ded8b5640b3d
treec30231ef3e1e183e913ec6a17300f25f68f0e724
parente954eb8028d7085fc8d0737c8e637ab940f7f147
sunxi: (mksunxiboot) signature to indicate "sunxi" SPL variant

This patch follows up on a discussion of ways to improve support
for the sunxi FEL ("USB boot") mechanism, especially with regard
to boot scripts, see:
https://groups.google.com/d/msg/linux-sunxi/wBEGUoLNRro/rHGq6nSYCQAJ

The idea is to convert the (currently unused) "pad" bytes in the
SPL header into an area where data can be passed to U-Boot. To
do this safely, we have to make sure that we're actually using
our "sunxi" flavor of the SPL, and not the Allwinner boot0.

The modified mksunxiboot introduces a special signature to the
SPL header in place of the "pub_head_size" field. This can be
used to reliably distinguish between compatible versions of sunxi
SPL and anything else (older variants or Allwinner's boot0).

Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>
Acked-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
arch/arm/include/asm/arch-sunxi/spl.h
tools/mksunxiboot.c