From: Kate Alhola <kate@iti.fi>
To: Wolfgang Denk <wd@denx.de>
Cc: linuxppc-embedded@lists.linuxppc.org
Subject: Re: Lite5200 PCI not working
Date: Mon, 21 Jun 2004 19:20:51 +0300 [thread overview]
Message-ID: <40D70AE3.8070408@iti.fi> (raw)
In-Reply-To: <20040621151440.DEA80C13D3@atlas.denx.de>
Wolfgang Denk wrote:
>Dear Kate,
>
>in message <40D6ECB0.6040301@iti.fi> you wrote:
>
>
>>Small notice about Coral-P card. Least one that i have needs separate -12V to connec to PCI
>>connector pins. There is no -12V supply on board. The Coral-P does itself need
>>-12V but there is one analog mux in video output that needs -5V that is
>>generated from -12V.
>>
>>
>
>Are you really sure? Maybe it was just an issue of finding the right
>jumper settings (which is non-trivial). We tested both with Rev. 4.0
>and Rev. 5.0 cards, and didn't need -12V.
>
>
>
I am absolutelly sure. Ihe document mb86295eb01-schematics-190503.pdf in
page 8
has analog mux U25 EL4331C that takes to pin 13 -5V voltage that comes
from U251
79L05 regulator that generates it from -12V. Even there is bypass
jumpers JP 250-JP252
the EL4331C inputs still clamp video output levels. I really fighted
a long tive with debugging driver untill i found reason why there is no
video
signal.
My board is Rev 3.0 so, may be they have fixed it in 4.0 or 5.0 versions.
Kate
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2004-06-21 16:20 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-21 10:03 Lite5200 PCI not working Iñigo Lopez Barranco
2004-06-21 10:26 ` Gerhard Jaeger
2004-06-21 10:53 ` Wolfgang Denk
2004-06-21 11:39 ` Gerhard Jaeger
2004-06-21 14:12 ` Kate Alhola
2004-06-21 15:14 ` Wolfgang Denk
2004-06-21 16:20 ` Kate Alhola [this message]
2004-07-01 8:41 ` Stefan Nickl
2004-07-01 8:52 ` Wolfgang Denk
2004-06-21 10:51 ` Wolfgang Denk
2004-06-21 19:19 ` Mark Jonas
2004-06-22 6:08 ` Gerhard Jaeger
-- strict thread matches above, loose matches on Subject: below --
2004-06-21 11:12 Iñigo Lopez Barranco
2004-06-21 11:48 ` Gerhard Jaeger
2004-07-01 9:18 Wolfgang Denk
2004-07-01 11:36 ` Kate Alhola
2004-07-01 12:38 ` Stefan Nickl
2004-07-01 22:20 ` Kate Alhola
2004-07-01 22:29 ` Wolfgang Denk
2004-07-02 4:43 ` Kate Alhola
2004-07-02 7:22 ` Wolfgang Denk
2004-07-02 7:55 ` Kate Alhola
2004-07-02 8:51 ` Wolfgang Denk
2004-07-08 11:57 ` Stefan Nickl
2004-07-08 12:12 ` Wolfgang Denk
[not found] <20040708124140.E18E4C109F@atlas.denx.de>
2004-07-08 13:34 ` Stefan Nickl
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