[PATCH] net: bcmgenet: Don't set ID_MODE_DIS when not using RGMII

[Nicolas Saenz Julienne]

As per Linux's driver, ID_MODE_DIS is only set when the PHY interface is
RGMII. Don't enable it for the rest of setups.

This has been seen to misconfigure RPi4's PHY when booting Linux.

Signed-off-by: Nicolas Saenz Julienne <nsaenzjulie...@suse.de>
---
 drivers/net/bcmgenet.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/bcmgenet.c b/drivers/net/bcmgenet.c
index 8f4848aec6..e971b556ac 100644
--- a/drivers/net/bcmgenet.c
+++ b/drivers/net/bcmgenet.c
@@ -448,7 +448,10 @@ static int bcmgenet_adjust_link(struct bcmgenet_eth_priv 
*priv)
        }
 
        clrsetbits_32(priv->mac_reg + EXT_RGMII_OOB_CTRL, OOB_DISABLE,
-                       RGMII_LINK | RGMII_MODE_EN | ID_MODE_DIS);
+                       RGMII_LINK | RGMII_MODE_EN);
+
+       if (phy_dev->interface == PHY_INTERFACE_MODE_RGMII)
+               setbits_32(priv->mac_reg + EXT_RGMII_OOB_CTRL, ID_MODE_DIS);
 
        writel(speed << CMD_SPEED_SHIFT, (priv->mac_reg + UMAC_CMD));
 
-- 
2.25.0