ocm_spi_mmu problem with NEEK

[Altera_Forum]

Hi 

 I'm newbie and I want to make my NEEK working with MMU. I follow the tutorial in the NIOS wiki for the toolchain installation (I have Fedora 10). I succeded with my first project starting from scratch (only cpu and UART), so the toolchain is working and now I want to implement ethernet.    I look at the Ethernet page on the wiki and for testing I download the ocm design for neek (neek_ocm_spi_mmu.zip). I take directly the custom_fpga and I try to configure the drivers (make menuconfig) and I have some difficulties to choose the drivers. I look at the thread "Avalon OpenCores MAC 10/100 + µClinux" thread 18390 and I configure the drivers accordingly. Anyway when I do "make" I have the following error :   /home/phil/nios2-linux/linux-2.6/drivers/net/open_eth.c: In function 'oeth_phymac_synch': /home/phil/nios2-linux/linux-2.6/drivers/net/open_eth.c:757: error: 'PHY_ADDRESS' undeclared (first use in this function) /home/phil/nios2-linux/linux-2.6/drivers/net/open_eth.c:757: error: (Each undeclared identifier is reported only once   Why this error?   Antoher question more generic: where to find the driver to configure with the sopc modules I implement? I mean when I looked at the ip eth_ocm documentation I can't find the relevant options to cross in the "make menuconfig"   Finally, I looked at the sopc configuration for the ocm_spi_mmu project and I'm wondering about the IRQ0 for the sys_clock_timer ??? I thought it as forbidden ???   Thanks

[Altera_Forum]

please use ethoc for nios2mmu branch. The open_eth in nios2mmu branch is not updated yet. 

 sys timer can use irq0.  Please check nios wiki for driver info.  - Hippo

[Altera_Forum]

Thanks Hippo, it's now working.  

 Anyway I have the same issue as other people, with RX : overrun and packet dropped. I use ethoc in static IP, with route and gateway configured. What is amazing is that overrun and packet dropped messages appear only when I connect the NEEK to my lab network. When I use only a ethernet "cross" cable between my pc and the neek, this error disappears !!!! Any idea ?   Another issue is now to configure the framebuffer. I use the Framebuffer wiki page and I guess the fb0 is working because the neek screen as color bars. But if I want to use Microwindow and specially nanox, I have the jpeg error:   /usr/lib/libjpeg.so: could not read symbols: File in wrong format collect2: ld returned 1 exit status make[5]: *** [/home/phil/nios2-linux/uClinux-dist/user/microwin/src/bin/nano-X] Error 1 make[5]: Leaving directory `/home/phil/nios2-linux/uClinux-dist/user/microwin/src/nanox' I looked at the jpeg library and it's automatically selected.    I tried to not use jpeg (png for instance) and I have a equivalent problem.   I'm stucked.