[PATCH 1/1] net: sni_netsec: Add workaround for timeout error

[Tom Rini]

On Thu, Aug 03, 2023 at 11:56:48PM +0900, Ryosuke Saito wrote:

> The NETSEC GMAC occasionally falls into a weird state where
> MAC_REG_DESC_SOFT_RST has never been cleared and shows errors like the
> below when networking commands are issued:
> 
>     => ping 192.168.1.1
>     ethernet at 522d0000 Waiting for PHY auto negotiation to complete... done
>     netsec_wait_while_busy: timeout
>     Using ethernet at 522d0000 device
> 
>     ARP Retry count exceeded; starting again
>     ping failed; host 192.168.1.1 is not alive
> 
> It happens on not only 'ping' but also 'dhcp', 'tftp' and so on.
> 
> Luckily, restarting the NETSEC GMAC and trying again seems to fix the
> problematic state. So first ensure that we haven't entered the state by
> checking MAC_REG_DESC_SOFT_RST to be cleared; otherwise, restarting
> NETSEC/PHY and trying again would work as a workaround.
> 
> Signed-off-by: Ryosuke Saito <ryosuke.saito at linaro.org>
> Tested-By: Masahisa Kojima <masahisa.kojima at linaro.org>

Applied to u-boot/master, thanks!

-- 
Tom
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