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From: Steffen Trumtrar <s.trumtrar@pengutronix.de>
To: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: barebox@lists.infradead.org
Subject: Re: [Question] How was zedboard lowlevel written?
Date: Fri, 09 Jan 2015 10:07:54 +0100	[thread overview]
Message-ID: <73d26o7251.fsf@dude.hi.pengutronix.de> (raw)
In-Reply-To: <20150108194716.6CF6.AA925319@jp.panasonic.com>


Hi!

Masahiro Yamada writes:
> Hello Steffen Trumtrar,
>
> I am seeing arch/arm/boards/avnet-zedboard/board.c
> written by you.
>

Sadly it's been a while since I touched this :(

> Is this file equivalent to ps7_init.c spit by Xilinx tool?
> Or did you write it by hand from scratch ? (I doubt it.)
>
>
> I have ZC706, another Zynq board.
> If I could port barebox to this board, that would be great!
> But I am just worndering whether I could get your advice about
> how to create the lowlevel file.
>

The lowlevel.c/flash_header.c are adapted from the ps7_init code IIRC.
Xilinx uses a prebootloader and a bootloader for the Zynq, barebox does
not. So you would have to put all values into the respective two files.
And you need to run scripts/zynq_mkimage for the checksum (but I think
the Makefile already does that).

I wish I could be of more help here, but I can't really remember the
actual steps necessary and I don't have a ps7_init handy at the moment.

Regards,
Steffen

-- 
Pengutronix e.K.                           | Steffen Trumtrar            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

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  reply	other threads:[~2015-01-09  9:08 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-08 10:47 Masahiro Yamada
2015-01-09  9:07 ` Steffen Trumtrar [this message]
2015-01-13  5:17   ` Masahiro Yamada

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