re:Linux on Virtex4

re:Linux on Virtex4

[Aleš Gorkič]

Hi Rick,

I saw on linuxppc-embedded at ozlabs.org that you are trying to port (or =
better you did) monta vista linux to Avnet's V4FX Mini-Module. I will =
try to deal with the same thing. My design is basically the same: all =
features of MM incorporated in CoreConnect style architecture. I also =
tried with Multi Port Memory Controller (MPMC2) and ported (memory =
works, but for LAN I still need phy datasheet) the Gigabit System =
Reference Design (GSRD2) to Mini-Module.
By using the MPMC2 memory core you can connect PPC directly to memory =
using two PLBs (data and instruction separated). This way you might =
solve the CPU cache errata. The problem with MPMC2 is that it consumes A =
LOT of BRAM and logic. I tried to build a full featured system, but =
V4FX12 lacks logic for the purpose.
Is there a way that you can help me with running MV linux on my system?

Cheers,


Ales Gorkic

re:Linux on Virtex4

[Yoshio Kashiwagi]

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Hi,

I am also operating Linux by Avnet V4FX12MM of a MPMC2+GSRD design.
However, V4FX and a PHY chips get very hot, and this design may
malfunction and may output oops.
Therefore, like an attached photo, my V4FX12MM applies a heat sink
and FAN, and is operating them.

Is it stabilizing and operating by your design?

Best Regards,

Yoshio Kashiwagi - Nissin Systems

> Hi Rick,
> 
> I saw on linuxppc-embedded at ozlabs.org that you are trying to port 
(or better you did) monta vista linux to Avnet's V4FX Mini-Module. I 
will try to deal with the same thing. My design is basically the same: 
all features of MM incorporated in CoreConnect style architecture. I 
also tried with Multi Port Memory Controller (MPMC2) and ported (memory 
works, but for LAN I still need phy datasheet) the Gigabit System 
Reference Design (GSRD2) to Mini-Module.
> By using the MPMC2 memory core you can connect PPC directly to memory 
using two PLBs (data and instruction separated). This way you might 
solve the CPU cache errata. The problem with MPMC2 is that it consumes A 
LOT of BRAM and logic. I tried to build a full featured system, but 
V4FX12 lacks logic for the purpose.
> Is there a way that you can help me with running MV linux on my system?
> 
> Cheers,
> 
> 
> Ales Gorkic
> 
> _______________________________________________
> Linuxppc-embedded mailing list
> Linuxppc-embedded@ozlabs.org
> https://ozlabs.org/mailman/listinfo/linuxppc-embedded
> 

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