[U-Boot-Users] u-boot bringup

[U-Boot-Users] u-boot bringup

[Raghu]

Hello All, 

I successfully ported u-boot on a PPC405EP processor, 
But I get the u-boot prompt only when I connect and
execute it using the BDI2000, including all the serial
outputs. But if I disconnect the BDI nothing comes up
on the Serial COM. 

Any clues please ??

Thanks, 
Raghu.



		
____________________________________________________
Start your day with Yahoo! - make it your home page 
http://www.yahoo.com/r/hs 
 

[U-Boot-Users] ARP request packet size

[pradeep sawlani]

Hello all,
I am porting u-boot and i am writing network driver.When uboot tries to send 
Arp request the packet size is 42 bytes and hence the other machines in 
network dont accept the request as the minimum size of ethernet frame should 
be 64bytes and hence ARP request packet is dropped. The problem is should 
the padding of packet to 64bytes should be done in driver code or there is 
other solution ????
Regards,
Pradeep.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.denx.de/pipermail/u-boot/attachments/20050902/a7918340/attachment.htm 

[U-Boot-Users] ARP request packet size

[Dominique bastien]

Most of the network device contains a bit to configure
padding or not padding (it's why network stack doesn't
do anything for that).  Try to find inside Linux or
BSD a reference implementation of your chipset, it's
useful when you write a network driver for the first
time.


--- pradeep sawlani <pradep@gmail.com> wrote:

> Hello all,
> I am porting u-boot and i am writing network
> driver.When uboot tries to send 
> Arp request the packet size is 42 bytes and hence
> the other machines in 
> network dont accept the request as the minimum size
> of ethernet frame should 
> be 64bytes and hence ARP request packet is dropped.
> The problem is should 
> the padding of packet to 64bytes should be done in
> driver code or there is 
> other solution ????
> Regards,
> Pradeep.
> 


__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com 

[U-Boot-Users] u-boot bringup

[Cliff Brake]

On 9/2/05, Raghu <raghu_dk@yahoo.com> wrote:
 
> I successfully ported u-boot on a PPC405EP processor,
> But I get the u-boot prompt only when I connect and
> execute it using the BDI2000, including all the serial
> outputs. But if I disconnect the BDI nothing comes up
> on the Serial COM.
> 
> Any clues please ??

The BDI2000 might be doing some type of processor initialization that
is not being done properly in your u-boot code.  Another possibility
might be a reset issue.  Have you verified the basics like you are
getting flash chip selects, etc?

Cliff

-- 
=======================
Cliff Brake
http://bec-systems.com