[U-Boot] u-boot-atmel support for SMSC9514

Wilson Perez

25 Jan 2012 25 Jan '12

12:41 a.m.

Hello,

I am currently using u-boot-2009.11 on an Atmel at91sam9g45 and would like to add support for the SMSC9514 to be able to run tcp/ip over usb. The goal is to load kernel and filesystem images for system recovery via tftp on a tcp/ip over usb interface.

Would you please guide me in the right direction?

Thanks.

Wilson

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Wolfgang Denk

25 Jan 25 Jan

7:29 a.m.

Dear Wilson Perez,

In message CALe7QMCQ3500k3gCZyAJXbxJKvF-E2wp_RbsSnMwptyPx0-Wog@mail.gmail.com you wrote:

...

I am currently using u-boot-2009.11 on an Atmel at91sam9g45 and would like to add support for the SMSC9514 to be able to run tcp/ip over usb. The

U-Boot has only a minimal network stack; we can do some UDP, but we cannot do TCP/IP.

...

goal is to load kernel and filesystem images for system recovery via tftp on a tcp/ip over usb interface.

This makes no sesen. TFTP is a UDP based protocol. You don't need TCP/IP for it.

Best regards,

Wolfgang Denk

-- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de Certain old men prefer to rise at dawn, taking a cold bath and a long walk with an empty stomach and otherwise mortifying the flesh. They then point with pride to these practices as the cause of their sturdy health and ripe years; the truth being that they are hearty and old, not because of their habits, but in spite of them. The reason we find only robust persons doing this thing is that it has killed all the others who have tried it. - Ambrose Bierce, "The Devil's Dictionary"

Marek Vasut

6:50 p.m.

...

Dear Wilson Perez,

In message <CALe7QMCQ3500k3gCZyAJXbxJKvF-E2wp_RbsSnMwptyPx0-

Wog@mail.gmail.com> you wrote:

...

...
I am currently using u-boot-2009.11 on an Atmel at91sam9g45 and would like to add support for the SMSC9514 to be able to run tcp/ip over usb. The

U-Boot has only a minimal network stack; we can do some UDP, but we cannot do TCP/IP.

We can also do ICMP ;-)

...

...
goal is to load kernel and filesystem images for system recovery via tftp on a tcp/ip over usb interface.

This makes no sesen. TFTP is a UDP based protocol. You don't need TCP/IP for it.

I think he means he wants to load kernel with tftpboot ... for that, he has to update u-boot to a more recent (mainline) version and simply use the USB ethernet stuff. I think this particular chip is supported already.

...

Best regards,

Wolfgang Denk

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Marek Vasut
Wilson Perez
Wolfgang Denk