[PATCH net-next v2 3/5] net: mediatek: sgmii: mtk_pcs_setup_mode_an: don't rely on register defaults

[Alexander Couzens]

Ensure autonegotiation is enabled.

Signed-off-by: Alexander Couzens <lynxis@xxxxxxx>
---
 drivers/net/ethernet/mediatek/mtk_sgmii.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mediatek/mtk_sgmii.c b/drivers/net/ethernet/mediatek/mtk_sgmii.c
index 18de85709e87..6f4c1ca5a36f 100644
--- a/drivers/net/ethernet/mediatek/mtk_sgmii.c
+++ b/drivers/net/ethernet/mediatek/mtk_sgmii.c
@@ -32,12 +32,13 @@ static int mtk_pcs_setup_mode_an(struct mtk_pcs *mpcs)
 	regmap_write(mpcs->regmap, SGMSYS_PCS_LINK_TIMER,
 		     SGMII_LINK_TIMER_DEFAULT);
 
+	/* disable remote fault & enable auto neg */
 	regmap_read(mpcs->regmap, SGMSYS_SGMII_MODE, &val);
-	val |= SGMII_REMOTE_FAULT_DIS;
+	val |= SGMII_REMOTE_FAULT_DIS | SGMII_SPEED_DUPLEX_AN;
 	regmap_write(mpcs->regmap, SGMSYS_SGMII_MODE, val);
 
 	regmap_read(mpcs->regmap, SGMSYS_PCS_CONTROL_1, &val);
-	val |= SGMII_AN_RESTART;
+	val |= SGMII_AN_RESTART | SGMII_AN_ENABLE;
 	regmap_write(mpcs->regmap, SGMSYS_PCS_CONTROL_1, val);
 
 	/* Release PHYA power down state
-- 
2.37.3