[U-Boot] Establishing connection via Ethernet

[U-Boot] Establishing connection via Ethernet

[Piyush Shah]

Hi all,
Is it feasible to send u-boot commands via Ethernet instead of UART?
I know that there is no such support right now. But can it be added?
Moreover how am I supposed to transmit UDP or TCP packets from u-boot?

--
-PIYUSH

[U-Boot] Establishing connection via Ethernet

[Ben Warren]

Hi Piyush,

Piyush Shah wrote:
> Hi all,
> Is it feasible to send u-boot commands via Ethernet instead of UART?
> I know that there is no such support right now. But can it be added?
> Moreover how am I supposed to transmit UDP or TCP packets from u-boot?
>
>
>   
Look into netconsole for control over Ethernet.  I haven't used it 
personally, but it's supported in U-boot.

What kind of UDP or TCP packets do you want to send?  Many of the common 
UDP-based protocols have some support (NFS, TFTP and some others), but 
keep in mind that U-boot is not a multitasking environment and so there 
is no concept of 'servers'.  Apart from netconsole, all network 
communications must start from the target.

regards,
Ben

[U-Boot] Establishing connection via Ethernet

[Piyush Shah]

Hi Ben

On Thu, Jan 29, 2009 at 2:03 PM, Ben Warren <biggerbadderben@gmail.com> wrote:
> Hi Piyush,
>
> Piyush Shah wrote:
>>
>> Hi all,
>> Is it feasible to send u-boot commands via Ethernet instead of UART?
>> I know that there is no such support right now. But can it be added?
>> Moreover how am I supposed to transmit UDP or TCP packets from u-boot?
>>
>>
>>
>
> Look into netconsole for control over Ethernet.  I haven't used it
> personally, but it's supported in U-boot.
This is what I wanted
Thanks a lot
>
> What kind of UDP or TCP packets do you want to send?  Many of the common
> UDP-based protocols have some support (NFS, TFTP and some others), but keep
> in mind that U-boot is not a multitasking environment and so there is no
> concept of 'servers'.  Apart from netconsole, all network communications
> must start from the target.
>
> regards,
> Ben
>



-- 
-PIYUSH

[U-Boot] Establishing connection via Ethernet

[Wolfgang Denk]

Dear Piyush Shah,

In message <ad27f3010901290022l2957affex8256b7f34b1190e6@mail.gmail.com> you wrote:
>
> Is it feasible to send u-boot commands via Ethernet instead of UART?

yes it it.

> I know that there is no such support right now. But can it be added?

You are wrong. The support is right there, and has been there for a
long, long time.

> Moreover how am I supposed to transmit UDP or TCP packets from u-boot?

UDP only. There is no TCP capable stack in U-Boot.

Best regards,

Wolfgang Denk

-- 
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