Linux with MMU on DE2-115

[Altera_Forum]

Hi, 

  Though the kernel version is still 2.6.30 and ether is limited up to 100Base-T, I uploaded a demonstration example for DE2-115.  http://www.alterawiki.com/wiki/linux_with_mmu_on_veek/t-pad   Following this page, you can port the 'Application Selector' in your DE2-115, and try the pre-compiled sample easy.  Enjoy the performance and limitation of 100MHz class soft-core CPU.  And I hunger for  soc fpga!  but it's 'Excalibur II'?:rolleyes:  Kazu

[Altera_Forum]

Hi, 

 It seems that the updated data 'Application Selector for DE2-115' are lost by some incident and the Wiki's pages are rewritten by old data. Later, I will reload and revise my page. But does anyone have any method to contact with the Wiki's administrator and complain about this problem?  Kazu

[Altera_Forum]

Which page are you talking about? I had a look at this one: http://www.alterawiki.com/wiki/application_selector 

There was some spam on it, as on almost all the pages on Altera's wiki. I've undone the changes but this is usually hopeless, they come back very quickly. Except from that nothing was removed from the original page. I'm not sure any administrator is currently taking care of the wiki.

[Altera_Forum]

Hi, 

   --- Quote Start ---  Which page are you talking about? I had a look at this one: http://www.alterawiki.com/wiki/application_selector There was some spam on it, as on almost all the pages on Altera's wiki. I've undone the changes but this is usually hopeless, they come back very quickly. Except from that nothing was removed from the original page.  --- Quote End ---     No, I don't mean the problem of spams. It seems to me that (maybe) almost all pages are rewritten by the old back-up data which are saved several weeks ago, because the viewers counters are suddenly decreased  http://www.alterawiki.com/wiki/special:popularpages (http://www.alterawiki.com/wiki/special:popularpages)   and we can't see the change logs before 9th April.  http://www.alterawiki.com/wiki/index.php?title=special:recentchanges&limit=500&days=30 (http://www.alterawiki.com/wiki/index.php?title=special:recentchanges&limit=500&days=30)   I have two pages in this Wiki, but recent upload data are deleted and the pages go back to the past.    --- Quote Start ---   I'm not sure any administrator is currently taking care of the wiki.  --- Quote End ---     I think that Altera is a little bit irresponsible not to give us the method of contact.   But we can finally get the Real SOC FPGA!  http://www.altera.com/b/arrow-sockit.html (http://www.altera.com/b/arrow-sockit.html)   So I think that we don't need to be bothered about Linux and Nios system anymore:cool:.   Kazu

[Altera_Forum]

Well if the person responsible for the Altera wiki is the same one than for the forum, you may get an answer in 2-3 years :/ 

From your description it looks like they had a problem with the database and switched to a backup. The wiki is currently in an even more abandoned state than the forum, so I wouldn't consider it reliable right now. If you write articles there, you should at least keep some backups.

[Altera_Forum]

Hi, Kazuyasu 

 I cannot send private messages yet, so I write in that way.  I am playing with my de2-115 board and now I trying to run uClinux on it (I use this project to learn linux). With success I was able to run all peripherals, beside sound. I noticed that you are the author of "Linux with MMU on VEEK/t-Pad", in which sound works. Can you explain me how did you do that? Probably you had to write driver for i2s_ctrl (in your design the Audio IP is named like this). Can you send me code for this driver? Or mabey driver is not needed, but only some configuration in linux files? I will be grateful for your help.  Regards, Kamil

[Altera_Forum]

Hi, 

  The data path of sound system is configured as follows,   SYSTEM RAM <---> DMA <--> FIFO + I2S Interface (i2s_ctrl) <--> WM8731  so you need also the DMA driver.    --- Quote Start ---  Can you send me code for this driver? Or mabey driver is not needed, but only some configuration in linux files?   --- Quote End ---    And unfortunately, you need several new drivers for Linux sound system. Please refer the attached files.  Kazu

[Altera_Forum]

Hi,  

thank you for your response. You threw some light on my problem. I have to analyze it. That's a little different than I thought. I still have a lot to learn. Once again, thank you very much! :)  Regards, Kamil