[U-Boot] ping failed; host 192.168.1.101 is not alive

[akdas75]

Hi

I have submitted the patch 
http://patchwork.ozlabs.org/patch/199895/

It required little more fixes in OMAP3 SPI code.
Now its working like a charm
There are no changes need to be done in enc28j60 code.

Attach logs for your reference
http://old.nabble.com/file/p34695543/working.cap working.cap 

Ajoy



akdas75 wrote:
> 
> Hi Anatolij  and Wolfgang Denk
> 
> I will submit the patches soon.
> I am reading the links to submit patches.
> 
> The OMAP3 SPI patch is required for proper functioning of that subsytem.
> I studied the linux driver and the TRM to arrive at this changes.
> 
> I wonder how these changes were not incorporated by anyone.
> 
> Ajoy
> 
> 
> akdas75 wrote:
>> 
>> Hi Anatolij  and Wolfgang Denk
>> 
>> I have solved the problem.
>> There are some "must" changes in omap3_spi.c to make it working.
>> Otherwise it will not be
>> behave in the expected way.
>> There are also few changes in enc28j60.c file to make it more stable.
>> I have attached the snapshot of both ping and tftp.
>> 
>> Please let me know if I can submit the changes as patch because they are
>> required
>> for proper working of the omap3 SPI.
>> http://old.nabble.com/file/p34659079/ping_success.cap ping_success.cap  
>> 
>> Ajoy
>>  
>> 
>> 
>> 
>> akdas75 wrote:
>>> 
>>> Hi 
>>> 
>>> I analyzed the code and put some prints to find the below mentioned
>>> behavior.
>>> The ARP packet is being received by ENC28J60 but when it reaches the
>>> software pkt format is not correct.
>>> A 0 is being appended to the packet.
>>> 
>>> After analysis I found this errata mentioned in ENC28J60  errata sheet
>>> is not applied for the initial case
>>> (for the first packet). Later on it is fine.
>>> I have made the changes and I need to test it today night after office.
>>> 
>>> Module: Memory (Ethernet Buffer) The receive hardware may corrupt the
>>> circular
>>> receive buffer (including the Next Packet Pointer and receive status
>>> vector fields) when an even value
>>> is programmed into the ERXRDPTH:ERXRDPTL registers.
>>> Work around
>>> Ensure that only odd addresses are written to the ERXRDPT registers.
>>> Assuming that ERXND contains
>>> an odd value, many applications can derive a suitable value to write to
>>> ERXRDPT by subtracting
>>> one from the Next Packet Pointer (a value always ensured to be even
>>> because of hardware padding)
>>> and then compensating for a potential ERXST to ERXND wraparound.
>>> Assuming that the receive
>>> buffer area does not span the 1FFFh to 0000h memory boundary, the logic
>>> in Example 1 will ensure that
>>> ERXRDPT is programmed with an odd value
>>> 
>>> Are you aware of any such change required in the ENC28J60  uboot code. 
>>> Kindly let me know if anybody has faced such issue
>>> 
>>> 
>>> akdas75 wrote:
>>>> 
>>>> Hi 
>>>> 
>>>> As per your suggestion I tried 2012.10 
>>>> Still the result is same. But it shows receive length is zero.
>>>> 
>>>> I have attached the logs
>>>> I have attached the changes to make ethernet work.
>>>> 
>>>> As I am new to this forum I hope you said me to reply to this mailing
>>>> list.
>>>> 
>>>> Ajoy http://old.nabble.com/file/p34620403/uboot.txt uboot.txt 
>>>> http://old.nabble.com/file/p34620403/uboot.patch uboot.patch 
>>>> 
>>>> 
>>>> 
>>>> akdas75 wrote:
>>>>> 
>>>>> hi 
>>>>> 
>>>>> No I dont have any firewall running.
>>>>> I have enabled to receive all packets []
>>>>> 
>>>>> i am using the uboot version 2011.03 with the following changes.
>>>>> But i think it will not affect the ping functionality.
>>>>> 
>>>>> Any help. I will try putting more logs and pointing the issue.
>>>>> 
>>>>> attached is the patch
>>>>> 
>>>>> Ajoy
>>>>> 
>>>>> 
>>>>> 
>>>>> akdas75 wrote:
>>>>>> 
>>>>>> hi Anatolij
>>>>>> I tried  your suggestion 
>>>>>> I generate a macid from uboot/tools/gen_eth_addr.
>>>>>> Still the ping says "host not alive"
>>>>>> 
>>>>>> I have attached the uboot log
>>>>>> and also the wireshark snapshot on the host
>>>>>> 
>>>>>> host : 192.168.1.101
>>>>>> development board : 192.168.1.100
>>>>>> 
>>>>>> Ajoy
>>>>>>  http://old.nabble.com/file/p34610904/uboot_log_1.txt uboot_log_1.txt 
>>>>>> http://old.nabble.com/file/p34610904/snap_wireshark_host.JPG
>>>>>> snap_wireshark_host.JPG 
>>>>>> 
>>>>>> akdas75 wrote:
>>>>>>> 
>>>>>>> Hi http://old.nabble.com/file/p34608548/uboot-log.rtf uboot-log.rtf 
>>>>>>> 
>>>>>>> I am using beagle board C4 with zippy expansion board.
>>>>>>> I am able to do NFS at the kernel level.
>>>>>>> I want to o tftp at the u-boot level.
>>>>>>> my beagle board is connected to the host via  cross ethernet cable.
>>>>>>> the phy chip is enc28j60. 
>>>>>>> when i ping  the host it says host not alive.
>>>>>>> 
>>>>>>> i have attached the env variables
>>>>>>> 
>>>>>>> please help
>>>>>>> 
>>>>>>> 
>>>>>> 
>>>>>> 
>>>>>  http://old.nabble.com/file/p34615656/u-boot.patch u-boot.patch 
>>>>> 
>>>> 
>>>> 
>>> 
>>> 
>> 
>> 
> 
> 

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