phy.c: clear flags for special PHY modes on phy_reset

Clear the following flags on SW reset: BMCR_PDOWN|BMCR_LOOPBACK|BMCR_CTST
They are cleared by a HW/POR reset but not if the PHY goes through a SW reset.

If the BMCR_PDOWN bit is set on reboot U-Boot fails to use Ethernet otherwise.

Steps to reproduce the issue without the patch (from within Linux):
Don't use phy_reset or use the unpatched version in U-Boot. Then:

ip link set down eth0
reboot
stop in U-Boot
ping <connected host>

-> Link stays down, a ping to a valid address does fail.

Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>

0 files changed, 0 insertions, 0 deletions