@@ -19,6 +19,20 @@ static struct mtk_pcs *pcs_to_mtk_pcs(struct phylink_pcs *pcs)
return container_of(pcs, struct mtk_pcs, pcs);
}
+static void mtk_pcs_get_state(struct phylink_pcs *pcs,
+ struct phylink_link_state *state)
+{
+ struct mtk_pcs *mpcs = pcs_to_mtk_pcs(pcs);
+ unsigned int bm, adv;
+
+ /* Read the BMSR and LPA */
+ regmap_read(mpcs->regmap, SGMSYS_PCS_CONTROL_1, &bm);
+ regmap_read(mpcs->regmap, SGMSYS_PCS_ADVERTISE, &adv);
+
+ phylink_mii_c22_pcs_decode_state(state, FIELD_GET(SGMII_BMSR, bm),
+ FIELD_GET(SGMII_LPA, adv));
+}
+
/* For SGMII interface mode */
static void mtk_pcs_setup_mode_an(struct mtk_pcs *mpcs)
{
@@ -117,6 +131,7 @@ static void mtk_pcs_link_up(struct phylink_pcs *pcs, unsigned int mode,
}
static const struct phylink_pcs_ops mtk_pcs_ops = {
+ .pcs_get_state = mtk_pcs_get_state,
.pcs_config = mtk_pcs_config,
.pcs_an_restart = mtk_pcs_restart_an,
.pcs_link_up = mtk_pcs_link_up,
Add a pcs_get_state() implementation which uses the advertisements to compute the resulting link modes, and BMSR contents to determine negotiation and link status. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> --- drivers/net/ethernet/mediatek/mtk_sgmii.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+)