From: Siva Durga Prasad Paladugu siva.durga.paladugu@xilinx.com

This patch bypasses phy detection logic for GMII interface and just depend on phy address received from DT. This patch is required as phy detection logic is different for some phys like xilinx phy which can be connected over SGMII and GMII interface. This fixes the issue of ethernet failures when xilinx phy is connected over GMII interface.

Signed-off-by: Siva Durga Prasad Paladugu sivadur@xilinx.com Signed-off-by: Michal Simek michal.simek@xilinx.com ---

drivers/net/zynq_gem.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c index 33245ec36e67..9802144d0c40 100644 --- a/drivers/net/zynq_gem.c +++ b/drivers/net/zynq_gem.c @@ -326,7 +326,8 @@ static int zynq_phy_init(struct udevice *dev) /* Enable only MDIO bus */ writel(ZYNQ_GEM_NWCTRL_MDEN_MASK, &regs_mdio->nwctrl);

- if (priv->interface != PHY_INTERFACE_MODE_SGMII) { + if ((priv->interface != PHY_INTERFACE_MODE_SGMII) && + (priv->interface != PHY_INTERFACE_MODE_GMII)) { ret = phy_detection(dev); if (ret) { printf("GEM PHY init failed\n");