From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <40D70AE3.8070408@iti.fi> Date: Mon, 21 Jun 2004 19:20:51 +0300 From: Kate Alhola MIME-Version: 1.0 To: Wolfgang Denk Cc: linuxppc-embedded@lists.linuxppc.org Subject: Re: Lite5200 PCI not working References: <20040621151440.DEA80C13D3@atlas.denx.de> In-Reply-To: <20040621151440.DEA80C13D3@atlas.denx.de> Content-Type: text/plain; charset=us-ascii; format=flowed Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: 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/