socfpga ethernet problems with ethernet in 3.17 with u-boot-2013.01.01

DISCUSSION Pavel Machek 2 participants 2 messages Oct 7, 2014

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Pavel Machek

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2014-10-07 12:10 UTC #0 lore raw

Hi!

After some testing:

u-boot-2013.01.01 + linux-3.17 => ethernet does not work
(unless ethernet is used in u-boot, for example using ping)
u-boot-marex-20140920a + linux-3.17 => working ethernet

One of our guesses is that maybe we don't pull ethernet out of reset in the first case?

Best regards,

Pavel

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Dinh Nguyen

2014-10-07 15:51 UTC #1 lore raw

Quoted 4 lines · Pavel Machek

Hi!
After some testing:

Quoted 8 lines

u-boot-2013.01.01 + linux-3.17 => ethernet does not work
(unless ethernet is used in u-boot, for example using ping)
u-boot-marex-20140920a + linux-3.17 => working ethernet
One of our guesses is that maybe we don't pull ethernet out of reset in the first case?

v3.17 has the reset driver framework that the stmmac driver uses to deassert the reset.

Dinh