From: Michael Schwingen <rincewind@discworld.dascon.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] calling pci_init before relocation?
Date: Mon, 31 Jan 2011 12:11:15 +0100 [thread overview]
Message-ID: <4D4698D3.8060401@discworld.dascon.de> (raw)
In-Reply-To: <20110131104254.103BCD42A99@gemini.denx.de>
Wolfgang Denk wrote:
> Dear Michael Schwingen,
>
> In message <4D45EA43.3070108@discworld.dascon.de> you wrote:
>
>> The system hangs during early init, and does not get past relocation.
>>
>
> That is to be expected when you use this before relocation. Don't do
> that, then.
>
>
>> If I interpret the code correct, the PCI code is called from
>> board_init_r on PowerPC platforms.
>>
>
> So what? board_init_r() is (quoting the comment) "the next part if
> the initialization sequence: we are now running from RAM and have a
> "normal" C environment, i. e. global data can be written, BSS has
> been cleared, the stack size in not that critical any more, etc."
>
> So it's perfectly safe and clean to run pci_init() there.
>
I know - I only wanted to point at the differences: the problem is that
the ARM code does it before relocation currently, and I was trying to
understand why.
cu
Michael
prev parent reply other threads:[~2011-01-31 11:11 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-30 21:39 [U-Boot] calling pci_init before relocation? Michael Schwingen
2011-01-30 22:07 ` Albert ARIBAUD
2011-01-30 22:46 ` Michael Schwingen
2011-01-30 23:01 ` Albert ARIBAUD
2011-01-31 8:45 ` Heiko Schocher
2011-01-31 10:46 ` Wolfgang Denk
2011-02-01 7:35 ` Michael Schwingen
2011-02-01 8:04 ` Heiko Schocher
2011-01-31 9:45 ` Michael Schwingen
2011-01-31 10:42 ` Wolfgang Denk
2011-01-31 11:11 ` Michael Schwingen [this message]
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