[U-Boot] problem about PING error from PC to u-boot

I'm still struggling with my mpc8315e board , customized with a DP83848 PHY chip. after u-boot bootup , the LED of PHY link status is blinking, When I use ping PC FORM u-boot , it's OK.
But when I ping u-boot FROM PC , it doesn't work and I just got timeout error etc.
I think the physical connection is OK, what could be the possible reason for this? Hope someone can help me out. Thanks! -

On 07/05/2013 11:18, du zhenhuan wrote:
I'm still struggling with my mpc8315e board , customized with a DP83848 PHY chip. after u-boot bootup , the LED of PHY link status is blinking, When I use ping PC FORM u-boot , it's OK.
But when I ping u-boot FROM PC , it doesn't work and I just got timeout error etc.
What are you expecting ? U-Boot is not an OS, and there is no thread in background answering requests from network. Except if netconsole is used, network and the related drivers are not active when not used, I mean when for example tftp or ping are not running.
If you want to have the network stack running, you should boot Linux.
Best regards, Stefano Babic

On 2013/5/7 20:05, Stefano Babic wrote:
On 07/05/2013 11:18, du zhenhuan wrote:
I'm still struggling with my mpc8315e board , customized with a DP83848 PHY chip. after u-boot bootup , the LED of PHY link status is blinking, When I use ping PC FORM u-boot , it's OK.
But when I ping u-boot FROM PC , it doesn't work and I just got timeout error etc.
What are you expecting ? U-Boot is not an OS, and there is no thread in background answering requests from network. Except if netconsole is used, network and the related drivers are not active when not used, I mean when for example tftp or ping are not running.
Thanks, good news for me :) It confused me because of unfamiliar with u-boot structure. I will continue to tftp test then.
If you want to have the network stack running, you should boot Linux.
Best regards, Stefano Babic
participants (2)
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du zhenhuan
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Stefano Babic