GP32 Gp32linux

[the_Diabologic]

as it says everywhere i think help is needed with the smc-driver since very long ago :\

 

[toholl]

Hi all,

Please see http://www.sourceforge.net/projects/gp32linux for the gp32linux port.

I am alone to develop the port and I have difficulties with the SMC driver.
If some GP32 developers are interested in helping the project, you are welcome.

Only 32MB cards can be now mounted in read-only mode.

Toholl

 

[NiN^_^NiN]

So if 32mb cards work have u got any programs to run in linux on the gp32?

just curious

h34r:

 

[toholl]

The kernel mounts an initrd filesystem into the memory: any application into this filesystem can be executed from any type of card.
The development step now is to read-write mount the smc card from the initrd filesystem. This will allow to save/write data into the card and to execute application not already loaded into the memory (like a disk).
This step is difficult because I lack documentation about smc card and I need to do reverse engineering with existing 16-32-64... MB cards.
And I have few free time...
And help from other linux developers would be very welcomed...

After the smc driver, next step will be USB device connection and tiny X server port.

Toholl

 

[nerd of nerds]

hmmmmmmmm...

if you haven't already looked at it , you should check out mizi linux...it is for an embedded dev kit VERY similar to gp32...same cpu, lcd, etc...

it SHOULD have some kind of smc driver in it SOMEWHERE, becuase the kit they sell has an smc slot...

just a thought...

 

[ingeras]

if you are talking about
http://www.mizi.com/en/index/toolbox_main
http://www.mizi.com/en/index/pdaedition
i dont see smart media support
they say : Support of serial, USB Port, CF-II, PCMCIA, MMC, SD and IrDA

 

[ingeras]

maybe this doc will help ?
http://www.ssfdc.or.jp/english/smil/down_e/SmilS11E.pdf
there is some source code @end
support all card type

---------------------------
http://www.win.tue.nl/~aeb/linux/smartmedi...edia_Format.pdf
http://www.alcove-labs.org/en/addons/hh501/
http://darkfader.net/gp32/smc.html

 

[Tobriand]

they say : Support of serial, USB Port, CF-II, PCMCIA, MMC, SD and IrDA

Bear in mind, someone a while back tested MMCs with thir GP, and aparrently came up trumps. So it might still be somewhere to look. Would be a shame if it turned out you could *only* use MMCs with it, though...

 

[nerd of nerds]

http://www.mizi.com/en/index/toolbox_main

look on the left side of that board...smc connector...YAAAY!!!

and i was looking at the gp32 cpu doc...pretty fun stuff...it has some kind of mmc interface...would that make sd possible? or what is the difference?

EDIT:

http://www.mizi.com/en/index/toolbox_specific

scroll down...it has smc listed there...

not in the hardware, in the os section...it has smc listed...

 

[fheusel]

There is a kernel availible at:
ftp://ftp.mizi.com/pub/

 

[ingeras]

in fact
i think it s there
http://www.mizi.com/developer/s3c2410x/Lin...e_chap_6_en.htm
http://www.mizi.com/developer/s3c2410x/index.html
but i dont know if the kernel source provided there include
the smart media driver ...

*************************************************
update
seems there is something

vivi/drivers/mtd/nand/smc_core.c:
*
* Based on linux/drivers/mtd/nand/smc.c
ftp://ftp.mizi.com/pub/linuette/SDK/1.5/t...ot/vivi.tar.bz2

 

[nerd of nerds]

in fact
i think it s there
http://www.mizi.com/developer/s3c2410x/Lin...e_chap_6_en.htm
http://www.mizi.com/developer/s3c2410x/index.html
but i dont know if the kernel source provided there include
the smart media driver ...

*************************************************
update
seems there is something

vivi/drivers/mtd/nand/smc_core.c:
*
* Based on linux/drivers/mtd/nand/smc.c
ftp://ftp.mizi.com/pub/linuette/SDK/1.5/t...ot/vivi.tar.bz2

who is da man!? hahaha...

will that be usable? :huh:

 

[toholl]

Thanks folks for your help.
Your links are interesting by I have already the same kind of source codes.
There are 3 difficulties:

#1: S3c2400 processor has no SMC controler, at the opposite of s3c2410. So I needed to create a raw interface with GPIO pins to communicate directly with the smc. And I had some access timing problems.

#2: I lack some smc documentation to understand 32 to 128MB card organization. This documentation is only reserved to smc forum members and I don't want to pay to be a member.

#3: I lack time to make development. So the project goes slow.

But I just solved some important difficulties and you will have a working read-only driver these next days.

Toholl

 

[cyberic]

Thanks for you efforts Toholl.

I don't have enough skills to look at the code and fix it, but I could certainly try to cross-compile/tweak some applications and test them.

What would be very useful would be a USB driver, that could maybe emulate a serial port or provide some access to the GP, even if it is only in a ramdisk (I tried to mount a tmpfs and was able to write some files in it).

It would be great also if you could provide the config file for uClibc, since I could link applications with it instead of making them static.

Thanks a lot for your project, and keep the good work!

UPDATE: I logged on the SSFDC forum website, and was able to obtain some documents, such as:
* Physical Specifications
* Electrical Specifications
* Physical Format Specifications
* Logical Format Specifications

Is it the kind of document you need?

I also found this on samsung's website:
http://www.samsung.com/US/Products/Semicon...white_paper.pdf
there is not much info...

What kind of info do you need precisely? maybe Squidge, who wrote GPDrive, knows about it?

 

[toholl]

Hi all,

Does someone have the CHA-01 chatboard documentation and can send me a copy through my email box: toholl at users dot sourceforge dot net ?
Thanks

 

[ingeras]

the page of the chatboard
http://www.nigelibrown.pwp.blueyonder.co.uk/gp32/

does someone know the edgepad (utility) ????

info on the wiring http://www.cs.helsinki.fi/u/jikorhon/condev/gp32/docs.html

the driver source code is here :
http://www.cs.helsinki.fi/u/jikorhon/conde...wnload.html#src