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Re: [ts-7000] tsuart7800.ko problems

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Subject: Re: [ts-7000] tsuart7800.ko problems
From: Heinrich du Toit <>
Date: Mon, 03 Mar 2008 09:19:49 +0200
Hi Micheal

Thanks for your response.. I hope we can figure this out soon.
(Since I have to wait about a day each time for response since I'm on 
the other side of the planet )

I've installed armel Debian linux (etch)
And linking with apt-get to sid and upgraded.
Don't think this should really affect kernel stuff anyway?

I'm booting from on-board flash.
Well I can't exactly tell you the md5sum for ts7800_nand.ko
Because if I say lsmod I don't see any nand driver.
I only have ts7800 and tssdcard drivers so I guess the nand driver is 
inside the kernel or something?

I've installed the folllowing kernel to nand flash (dd to /dev/mtdblock1 
(I think it's 1))
ftp://ftp.embeddedarm.com/ts-arm-sbc/ts-7800-linux/binaries/ts-kernels/Image-7800-initrdroot
The md5sum of the image:
95605e729333e65f2bb99b4aa2db3621  Image-7800-initrdroot

I've downloaded the following modules package:
ftp://ftp.embeddedarm.com/ts-arm-sbc/ts-7800-linux/binaries/ts-modules/linuxmodules-2.6.21-ts-jan182008.tar.gz
the md5sum for that .tar.gz is:
f299f6c03479a77e723a9bc2d47ab688  linuxmodules-2.6.21-ts-jan182008.tar.gz


I've also updated the following driver to the 21 Jan version:
5799b7ecb79948d11cc4cabfc3d3df7c  tsuart7800.ko
 From here:
ftp://ftp.embeddedarm.com/ts-arm-sbc/ts-7800-linux/binaries/ts-modules/tsuart7800.ko
I think I've updated tsuart1.ko also but that is still the 18jan version 
from the ftp so I think it's the same.

in my /lib/modules/2.6.21-ts/kernel/drivers/mtd/nand folder I have:
560595f538f83bf360aec50a05ca859b  ts7800.ko
(on the nand flash itself)

Somebody else said that the nand driver corrupts the flash..
Well I really hope he is wrong.
And so far I have good hope for that as the segfaults or other funny 
things seem to disappear after a reboot. So I don't think it's that.

A few other clues I can give you:
Once I had the messages from dmesg (or syslog file) that drivers could 
not be registered.
Other times apt-get doesn't give segfault but complains about a wrong 
library version or something(was last week so can't remember exactly)
But it all seem rather random. So I don't think the errors are directly 
related to the bug/problem.

btw. Is there somewhere an example program which can use these ts-uarts 
(8 and 9-bit) using the /dev/tt(t/8)s? devices.
Because it really seems that program like setserial doesn't really 
change the settings - which worries me.


Thanks
-Heinrich



Michael wrote:
>
> > but from then on if I try to run lsmod I get a segfault :(
>
> Are you booting from the SD card or the on-board flash? Also, what is the
> md5sum of your ts7800_nand.ko?
>
> ______ Best Regards,
> |__ __/ Michael Schmidt
> || Software Engineer
> ||echnologic Systems (EmbeddedARM.com)
> || (480) 16610 East Laser Drive #10
> |/ 837-5200 Fountain Hills, AZ 85268
> http://oz.embeddedarm.com/~michael <http://oz.embeddedarm.com/%7Emichael>
>
>  



 
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