[ECOS] Re: Leon3 compatible with LAN91C111?

[Tapio Koskinen]

Hi Jiri,

Yes, I have been using ecos-rep-1.0.7.tar.gz. However I only found
support for Greth and Openeth, not Lan91C111 (in configtool
Build->Templates).

Tapio


Jiri Gaisler wrote:
> LEON3 support for LAN91C111 is available in the patched eCos version
> available from Gaisler Research:
> 
> ftp://gaisler.com/gaisler.com/ecos/src
> 
> This version of eCos also support SMP for LEON3. We have not succeeded
> in pushing our modifications into the main tree yet ...
> 
> Some basic info is also available here:
> 
> http://www.gaisler.com/cms4_5_3/index.php?option=com_content&task=view&id=149&Itemid=31
> 
> Jiri.
> 
> Tapio Koskinen wrote:
>> Hi all,
>>
>> I am using a Leon3 processor on Altera's Nios II Development Kit, Stratix Edition. The board has a LAN91C111 Ethernet controller and I am trying to get server_test.c working. There was no target for such a configuration, so I made a new target to ecos.db and added the following packages to it:
>> CYGPKG_HAL_SPARC
>> CYGPKG_HAL_SPARC_LEON3
>> CYGPKG_DEVS_ETH_SMSC_LAN91CXX
>> CYGPKG_DEVS_ETH_SPARC_LEON3
>>
>> When trying to run the program it said "No 91Cxx signature found". It seems there was an endianess problem, and after removing all calls to CYG_CPU_TO_LE16 and CYG_LE16_TO_CPU in devs/eth/smsc/lan91cxx/current/src/if_lan91cxx.c and smsc_lan91cxx.h it found the signature.
>>
>> However it prints "auto-negotiation failed" even though "link ok" led is lit in the controller after aneg-bit is written to RPCR-register. Also there is a yellow balloon tip in Windows saying 10Mbps link established.
>>
>> After lan91cxx_start completes these lines are printed:
>> lan91cxx_can_send
>> lan91cxx_can_send: ENGINE RESTART: tcr 0x0000
>> lan91cxx_poll
>> lan91cxx_TxEvent
>> lan91cxx_TxEvent:START: fifo 0000 ints 3100
>> lan91cxx_TxEvent: ENGINE RESTART: tcr 0x0000 eph 0x0000 ints 0x3100
>> lan91cxx_TxEvent:END: fifo 0000 ints 3302
>> lan91cxx_isr
>> lan91cxx_TxEvent
>> lan91cxx_TxEvent:START: fifo 0000 ints 3100
>> lan91cxx_TxEvent: ENGINE RESTART: tcr 0x0000 eph 0x0000 ints 0x3100
>> lan91cxx_TxEvent:END: fifo 0000 ints 3302
>> lan91cxx_TxEvent
>>
>>
>> So it keeps executing lan91cxx_TxEvent over and over. TXENA-bit can't stay up but there is no error in EPH_STATUS-register. And what is the server_test/eCos trying to send anyways? Server_test should just wait for a connection. I have set a static IP address so DHCP shouldn't be in use. I also tried unloading DNS-package but it didn't help. What should I try to do next?
>>
>> I have tried using versions 1.19 and 1.20 of 91C111's drivers, although in 1.20 calls to CYGACC_CALL_IF_DELAY_US(x) couldn't be linked even if I added "#include <cyg/hal/hal_if.h>" to if_lan91cxx.c. So I had to change those calls back to HAL_DELAY_US(x).
>>
>> Thanks in advance
>>
>> Tapio


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