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Author Topic: Pxa255 Kernel + Wi-fi Cf  (Read 8773 times)

Power3d

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Pxa255 Kernel + Wi-fi Cf
« on: May 04, 2005, 02:26:22 pm »
Hi!
I would like to know if there is anyone with the special kernel for the SL-5600 PXA2PXA255 that works with Wi-Fi.
The thing is, the kernel is very fast, but the wi-fi cards are not detected.
I don't think that there is anybody with the special kernel and Wi-Fi (CF) working.
Thanks
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Zaurus 5600 (PXA255) - SanDisk 32MB CF Card - Linksys WCF12 - Digital Camera Sharp CE-AG06

Power3d

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Pxa255 Kernel + Wi-fi Cf
« Reply #1 on: May 06, 2005, 07:28:13 am »
Nobody, as I suspected  
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ShaneFalco

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Pxa255 Kernel + Wi-fi Cf
« Reply #2 on: May 06, 2005, 07:57:30 am »
I have the same problem... searched everywhere for a solution but it seems that few people really care about the new pxa255 kernel...
it's very disappointing, cause this kernel is VERY fast compared to the default one...
i've reported the problem to the mailing list and to one of the developers...
bye
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dz

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Pxa255 Kernel + Wi-fi Cf
« Reply #3 on: May 06, 2005, 09:55:33 am »
I gave up on my 5600 and just got an 860.  The 860 has the 255 and everything works fine on that.  Barely anyone had the 5600, so it was a pain to get anything working on it.
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masterzen

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Pxa255 Kernel + Wi-fi Cf
« Reply #4 on: May 06, 2005, 05:41:20 pm »
Quote
Nobody, as I suspected 
[div align=\"right\"][a href=\"index.php?act=findpost&pid=78517\"][{POST_SNAPBACK}][/a][/div]
If it works with the standard oz kernel, then I suspect you'll have to recompile the modules and not only the kernel.

Your best bet is to install OpenEmbedded, change the config and rebuild the kernel (this is a quite easy step to do) or to convince someone to build the modules for you.
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adf

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Pxa255 Kernel + Wi-fi Cf
« Reply #5 on: May 06, 2005, 05:44:29 pm »
if all you want is speed on oz, just recompile the oz kernel without the cachebug workaround. you'll be just as fast.
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Power3d

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Pxa255 Kernel + Wi-fi Cf
« Reply #6 on: May 08, 2005, 08:12:36 am »
Quote
if all you want is speed on oz, just recompile the oz kernel without the cachebug workaround. you'll be just as fast.
[div align=\"right\"][a href=\"index.php?act=findpost&pid=78624\"][{POST_SNAPBACK}][/a][/div]

Hi!
I really would like to know how-to compile the kernel.
I have a debian system and I know how to compile a normal kernel.
Can anybody tell me, step-by-step, how to compile the kernel and what is needed to put it working on the Zaurus?
I would appreciate that.
Thanks!
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lardman

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Pxa255 Kernel + Wi-fi Cf
« Reply #7 on: May 08, 2005, 09:31:22 am »
http://openembedded.org/cgi-bin/moin.cgi/GettingStarted

Ensure you have the correct settings in local.conf

Then run 'bitbake virtual/kernel'

Not quite sure what the alterations are which need to be made to remove the cache errata bug, though I imagine you just need to add/remove a patch from the kernel .bb file.


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Mickeyl

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Pxa255 Kernel + Wi-fi Cf
« Reply #8 on: May 08, 2005, 09:55:49 am »
I don't see how rebuilding the modules should change anything. the xscale cache errata code is some arm asm bits contained in the startup and sleep/resume. Enabling or disabling this has no effect on the module code.

I recommend getting a ksymoops'ed kernel traceback and depending on the contents of this traceback forwarding this either to alkml or to the hostap developers.
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masterzen

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Pxa255 Kernel + Wi-fi Cf
« Reply #9 on: May 08, 2005, 10:52:42 am »
Quote
I don't see how rebuilding the modules should change anything. the xscale cache errata code is some arm asm bits contained in the startup and sleep/resume. Enabling or disabling this has no effect on the module code.
I'm not a kernel guru, but I'm sure the kernel size changes with the Cache Errata disabled, so some of the symbols the modules might want to call are certainly displaced, thus you have to recompile them, does it make sense ?

I'm pretty sure the System.map changes, so maybe the only thing needed is a valid System.map somewhere (and a depmod or sth like that) ?

Anayway, I recompiled the modules and I don't have the oops when plugin the USB connector, which lead me to think I was right, but this is maybe just a coincidence. I can't confirm anything about wifi as I don't have such cards.
« Last Edit: May 09, 2005, 03:41:09 am by masterzen »
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azurensis

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Pxa255 Kernel + Wi-fi Cf
« Reply #10 on: May 10, 2005, 09:42:11 am »
Quote
Hi!
I would like to know if there is anyone with the special kernel for the SL-5600 PXA2PXA255 that works with Wi-Fi.
The thing is, the kernel is very fast, but the wi-fi cards are not detected.
I don't think that there is anybody with the special kernel and Wi-Fi (CF) working.
Thanks
[div align=\"right\"][{POST_SNAPBACK}][/a][/div]

I have both the special kernel and wifi (linksys WCF11) working on an sl-5600. Konqueror runs very fast indeed.

[a href=\"http://tekgnome.com:70/feed/zImage-poodle-20050420150825.bin]http://tekgnome.com:70/feed/zImage-poodle-20050420150825.bin[/url]

http://tekgnome.com:70/feed/opie-image-poo...ootfs.jffs2.bin
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azurensis

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Pxa255 Kernel + Wi-fi Cf
« Reply #11 on: May 10, 2005, 09:54:28 am »
Quote
Quote
Hi!
I would like to know if there is anyone with the special kernel for the SL-5600 PXA2PXA255 that works with Wi-Fi.
The thing is, the kernel is very fast, but the wi-fi cards are not detected.
I don't think that there is anybody with the special kernel and Wi-Fi (CF) working.
Thanks
[div align=\"right\"][{POST_SNAPBACK}][/a][/div]

I have both the special kernel and wifi (linksys WCF11) working on an sl-5600. Konqueror runs very fast indeed.

[a href=\"http://tekgnome.com:70/feed/zImage-poodle-20050420150825.bin]http://tekgnome.com:70/feed/zImage-poodle-20050420150825.bin[/url]

http://tekgnome.com:70/feed/opie-image-poo...ootfs.jffs2.bin
[div align=\"right\"][a href=\"index.php?act=findpost&pid=79069\"][{POST_SNAPBACK}][/a][/div]

That kernel image actually has both the pxa255 workaround disabled and the Fast Floating Point Emulator compiled in instead of the NWFPE. Here are its stats:

Integer Arithmetic: 555556 dhrys
Floating Point Unit: 2.30 sec
Text Rendering: 392 chars/sec
Gfx Rendering: 3459.25 gops/sec
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azurensis

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Pxa255 Kernel + Wi-fi Cf
« Reply #12 on: May 10, 2005, 10:26:52 am »
If you just want the kernel modules you need instead of downloading the whole opie-image, they can also be found at:

http://tekgnome.com:70/feed/

orinoco-modules*
hostap-modules*
kernel-modules*
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Greg2

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Pxa255 Kernel + Wi-fi Cf
« Reply #13 on: May 10, 2005, 02:07:09 pm »
Quote
I have both the special kernel and wifi (linksys WCF11) working on an sl-5600. Konqueror runs very fast indeed.

http://tekgnome.com:70/feed/zImage-poodle-20050420150825.bin

http://tekgnome.com:70/feed/opie-image-poo...ootfs.jffs2.bin
It works on my poodle with a 'PXA250' using my SMC2642W. I have inserted and ejected the CF-card and the wireless-card without any problems... and used both just enough to test.

Integer Arithmetic: 553863 dhrys
Floating Point Unit: 2.36 sec

I should note that I used both the kernel and opie-image supplied by azurensis.

Thanks

Greg
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azurensis

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Pxa255 Kernel + Wi-fi Cf
« Reply #14 on: May 10, 2005, 02:13:50 pm »
Quote
Quote
I have both the special kernel and wifi (linksys WCF11) working on an sl-5600. Konqueror runs very fast indeed.

http://tekgnome.com:70/feed/zImage-poodle-20050420150825.bin

http://tekgnome.com:70/feed/opie-image-poo...ootfs.jffs2.bin
It works on my poodle with a 'PXA250' using my SMC2642W. I have inserted and ejected the CF-card and the wireless-card without any problems... and used both just enough to test.

Integer Arithmetic: 553863 dhrys
Floating Point Unit: 2.36 sec

I should note that I used both the kernel and opie-image supplied by azurensis.

Thanks

Greg
[div align=\"right\"][a href=\"index.php?act=findpost&pid=79128\"][{POST_SNAPBACK}][/a][/div]

I'm not so sure that running that kernel on a PXA250 is such a good idea since the workaround that is disabled in it was specifically for that processor. You might get some strange results eventually.

Hey, if it's working, enjoy!
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