uClinux using Nios II e-core

[Altera_Forum]

Hello Everyone, 

 I wanted to see if anyone has tried uClinux on Nios II e-core.?   I'm trying to run uClinux 2.6.30 on Nios II e-core. In the make menuconfig, I have turned off Hardware Multiplier option (since e-core doesn't have one). But after I download the image and try to run it, it gets stuck at   "Uncompressing Linux... Ok, booting the kernel."  Btw I'm able to run uClinux 2.6.30 on Nios II f-core.  Any help is appreciated.   Thanks, Tedy

[Altera_Forum]

hello ，i am trying to transplant the uclinux to my cyclone IV ， i found a detail description about uClinux on Altera Wiki page， but i encountered several problems as follows: 

1>my environment is ubuntu 12.04 - 64bit ，i cannot success to configure my toolchain (prebuild toolchain nios2gcc-20080203.tar.bz2 )PATH right：i add this line in ~/.profile：PATH=/opt/nios2/bin:$PATH;export . but nios2-linux-uclibc-gcc -v failed； then i chose to use ubuntu 11.04 32-bit ,it works;  so, what is your linux version ?   2>I cannot download http://sopc.et.ntust.edu.tw/pub/linux/nios2-linux-20100621.tar ，it seems the link is out of work; so i use ftp://ftp.altera.com/outgoing/nios2-linux/20120802/ instead ; but when i come into uclinux-dist:# make menuconfig ,it failed;said that :    Are you do your job as the same as Wiki page do ??   now ，i cannot make any progress ， 

[Altera_Forum]

Is it uClinux without MMU? This is because Nios II e does not support MMU.

[Altera_Forum]

--- Quote Start ---  Is it uClinux without MMU? This is because Nios II e does not support MMU.  --- Quote End ---    hey， mikedsouze ，where can i down load the nios2-linux-20120621.tar ?  the link in Wiki is invalid；

[Altera_Forum]

Have you tried:  

http://www.alterawiki.com/wiki/install_nios_ii_linux?gsa_pos=1&wt.oss_r=1&wt.oss=nios2%20linux

[Altera_Forum]

Have you tried: 

http://www.alterawiki.com/wiki/install_nios_ii_linux

[Altera_Forum]

--- Quote Start ---  Is it uClinux without MMU? This is because Nios II e does not support MMU.  --- Quote End ---    Hey Mike.   It is uClinux without MMU.   Tedy

[Altera_Forum]

i come across it too,if you are using nios2nommu , which reset_address are you choose in sopc->cpu??? maybe you should choose flash controller . 

 Frank

[Altera_Forum]

Reference: http://www.alterawiki.com/wiki/uclinux 

e core has no hardware multiplier, so it needs a hack (under hardware requirements section). But I am not sure what "hack" is it referring to.

[Altera_Forum]

--- Quote Start ---  Reference: http://www.alterawiki.com/wiki/uclinux e core has no hardware multiplier, so it needs a hack (under hardware requirements section). But I am not sure what "hack" is it referring to.  --- Quote End ---    Hey Mike,  Hardware multiplier is not the problem. I have run s-core without hw_mul and it works fine. The issue is with icache. Need to tell the kernel there is no icache.  Tedy

[Altera_Forum]

--- Quote Start ---  Reference: http://www.alterawiki.com/wiki/uclinux e core has no hardware multiplier, so it needs a hack (under hardware requirements section). But I am not sure what "hack" is it referring to.  --- Quote End ---    Hey Mike,  I have tested uClinux on Nios II s-core without hw multiplier & its working. So I don't think hw multiplier is the issue. I think it has to do with icache.   Tedy