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Subject[PATCH 3/4] net: mediatek: sgmii: mtk_pcs_setup_mode_an: don't rely on register defaults
Date
Ensure autonegotiation is enabled.

Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
---
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 782812434367..aa69baf1a42f 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
--
2.35.1
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