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[ts-7000] Re: ERROR: "clk_put" [drivers/usb/host/ohci-hcd.ko] undefined!

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Subject: [ts-7000] Re: ERROR: "clk_put" [drivers/usb/host/ohci-hcd.ko] undefined!
From: "j.chitte" <>
Date: Fri, 02 Jul 2010 10:53:39 -0000

--- In  "Blair" <> wrote:
>
> Everything on the 7350 runs off the SD card so I kinda need that working.  
> One problem I have is trying to figure out what kernel features have been 
> replaced as opposed to added.  In looking at this now, I run menuconfig for 
> 21 and 24 side-by-side and try to turn on/off the right things.  Sure you 
> find new stuff but you also find things have been taken out that were turned 
> on in 21 and I don't know where to look to find out if that missing feature 
> might be a show-stopper.  Trial and error is a huge time-suck.
> 
> It too bad that TS doesn't upgrade the versions.  After all, they know their 
> hardware better than anyone and what it took to get to the current release.
> 

To be fair to TS I think you have to realise what embedded is all about. It's 
about a stable product not on-off systems.

If a company invests R&D effort in a board for a product they NEED a stable 
product more than frequent updates and new features.

You need SD to finish booting to debian image on SD from the initial boot which 
seems to be a small initrd image. SD is controlled by the FPGA so the boot 
kernel much have a module to communicate with that array. That seems to be your 
missing link.

Find out how 7350 uses the FPGA to give it access to SD and build a recent 
kernel with this capablility.

The proprietary SD stuff should be in FPGA and so TS don't need to worry about 
source non disclosure.  I would expect the kernel module to communicate with 
the array should be available as source.

I'm guessing here because I don't know 7350. You should !

Dig the doc and understand the boot mechanism up to the point where it hands 
over to the SD card. I think you should be able to do that with a recent kernel.

You could also ask the question directly of TS as to what areas you need to 
look at and if there are any steps you are likely to get blocked by the need of 
proprietory source code.






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