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

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@522d0000 Waiting for PHY auto negotiation to complete... done
netsec_wait_while_busy: timeout
Using ethernet@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@linaro.org Tested-By: Masahisa Kojima masahisa.kojima@linaro.org

Applied to u-boot/master, thanks!