diff options
Diffstat (limited to 'target/linux/generic/pending-5.4/730-net-phy-at803x-fix-feature-detection.patch')
| -rw-r--r-- | target/linux/generic/pending-5.4/730-net-phy-at803x-fix-feature-detection.patch | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/target/linux/generic/pending-5.4/730-net-phy-at803x-fix-feature-detection.patch b/target/linux/generic/pending-5.4/730-net-phy-at803x-fix-feature-detection.patch new file mode 100644 index 0000000000..f25952a2cc --- /dev/null +++ b/target/linux/generic/pending-5.4/730-net-phy-at803x-fix-feature-detection.patch @@ -0,0 +1,66 @@ +From 97ca310aa18a93329ef5cd68c20de89761962f45 Mon Sep 17 00:00:00 2001 +From: David Bauer <mail@david-bauer.net> +Date: Sun, 13 Jun 2021 12:19:36 +0200 +Subject: [PATCH] net: phy: at803x: fix feature detection + +AR8031/AR8033 have different status registers for copper +and fiber operation. However, the extended status register +is the same for both operation modes. + +As a result of that, ESTATUS_1000_XFULL is set to 1 even when +operating in copper TP mode. + +Remove this mode from the supported link modes, as this driver +currently only supports copper operation. + +Signed-off-by: David Bauer <mail@david-bauer.net> +--- + drivers/net/phy/at803x.c | 30 +++++++++++++++++++++++++++++- + 1 file changed, 29 insertions(+), 1 deletion(-) + +--- a/drivers/net/phy/at803x.c ++++ b/drivers/net/phy/at803x.c +@@ -411,6 +411,34 @@ static int at803x_aneg_done(struct phy_d + return aneg_done; + } + ++static int at803x_get_features(struct phy_device *phydev) ++{ ++ int err; ++ ++ err = genphy_read_abilities(phydev); ++ if (err) ++ return err; ++ ++ if (!(phydev->phy_id & phydev->drv->phy_id_mask) == (ATH8031_PHY_ID & phydev->drv->phy_id_mask)) ++ return 0; ++ ++ /* AR8031/AR8033 have different status registers ++ * for copper and fiber operation. However, the ++ * extended status register is the same for both ++ * operation modes. ++ * ++ * As a result of that, ESTATUS_1000_XFULL is set ++ * to 1 even when operating in copper TP mode. ++ * ++ * Remove this mode from the supported link modes, ++ * as this driver currently only supports copper ++ * operation. ++ */ ++ linkmode_clear_bit(ETHTOOL_LINK_MODE_1000baseX_Full_BIT, ++ phydev->supported); ++ return 0; ++} ++ + static int at803x_read_status(struct phy_device *phydev) + { + int ss, err, old_link = phydev->link; +@@ -513,7 +541,7 @@ static struct phy_driver at803x_driver[] + .resume = at803x_resume, + .read_page = at803x_read_page, + .write_page = at803x_write_page, +- /* PHY_GBIT_FEATURES */ ++ .get_features = at803x_get_features, + .read_status = at803x_read_status, + .aneg_done = at803x_aneg_done, + .ack_interrupt = &at803x_ack_interrupt, |