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From: Andrey Smirnov <andrew.smirnov@gmail.com>
To: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Cc: "barebox@lists.infradead.org" <barebox@lists.infradead.org>
Subject: Re: Booting Linux on Altera's socfpga
Date: Mon, 20 Apr 2015 05:41:34 -0700	[thread overview]
Message-ID: <CAHQ1cqFsmdJn9JWzbHbRP-9CFBUi5Xk_O66btO1Png8cwn0zyA@mail.gmail.com> (raw)
In-Reply-To: <20150413130411.GB19889@pengutronix.de>

>> 2. Boot into barebox
>>
>> 3. cp /boot/soc_system.rbf /dev/socfpga-fpga (This step initially
>> didn't work for me, so I had to make a change to the firmware driver
>> http://lists.infradead.org/pipermail/barebox/2015-April/023194.html)
>>
>
> This is interesting, because all rbf's I generated myself worked fine.
> I wonder why this is different...
>

My guess is that all of the .rbfs you generated had their length be
multiple of 4


>> After the last step I and barebox jumps to the kernel code I don't see
>> any output on the serial at all.
>>
>
> Wild guess: does the Rocketboards kernel define "CONFIG_VMSPLIT_2G=y"?
> It is possible, that this produces errors when you use barebox.
>

You wild guess was spot on, thank you! It was indeed the reason and as
soon as I recompiled a Rocketboards kernel without that option
everything started to work just fine.


Andrey

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  reply	other threads:[~2015-04-20 12:41 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-04-13 12:43 Andrey Smirnov
2015-04-13 13:04 ` Steffen Trumtrar
2015-04-20 12:41   ` Andrey Smirnov [this message]
2015-04-20 12:58     ` Lucas Stach

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