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Altera_Forum's avatar
Altera_Forum
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16 years ago

Tse Loopback Problem

Hi All, i'm trying to port u-boot on a custom board. I follow the nioswiki guide to build u-boot.bin and the bootloader started quickly...but it seems impossible to use ethernet. My demo (db...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Hi all again,

I solved the previous problem...i had not DMA transfer because descriptors were not allocated in descriptor memory area...

Now I have this problem...from u-boot I can ping my PC but only the first time...when I try another ping debug traces show that RX descriptors stay busy till the timeout...even after SWRESET...

Why RX descriptors cannot be resetted???

I forget...the driver I'm using is altera_tse.c under /u-boot/drivers/net in the version present in the latest distribution from the nioswiki...

Any idea will be well accepted..;)

Thanks