From: Sean MacLennan <smaclennan@pikatech.com>
To: Stefan Roese <sr@denx.de>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: ibm4xx_quiesce_eth?
Date: Fri, 11 Jan 2008 01:19:27 -0500 [thread overview]
Message-ID: <47870A6F.2040101@pikatech.com> (raw)
In-Reply-To: <200801110715.00058.sr@denx.de>
Stefan Roese wrote:
>> There are firmwares that do not reset the EMAC and MAL before passing
>> control to the client program (Linux in our case). This can cause
>> weird things to happen, like spurious interrupts or DMAs from the
>> hardware overwriting kernel memory. So we quiesce the hardware really
>> early on those.
>>
>> I don't believe U-Boot has that problem. If it does, it should be
>> fixed :)
>>
>
> No, U-Boot doesn't have this problem.
>
> Best regards,
> Stefan
>
Thanks for the confirmation! One less thing to worry about.
Cheers,
Sean
prev parent reply other threads:[~2008-01-11 6:19 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-10 18:38 ibm4xx_quiesce_eth? Sean MacLennan
2008-01-10 18:24 ` ibm4xx_quiesce_eth? Josh Boyer
2008-01-11 6:14 ` ibm4xx_quiesce_eth? Stefan Roese
2008-01-11 6:19 ` Sean MacLennan [this message]
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