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Merge pull request #416 from DrDoof/fix/phy-100m-half-adv

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phy: advertise half duplex only when half duplex was asked for
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René van Dorst authored and GitHub committed 2026-09-08 22:06:11 +00:00
2 parents 5ecce86ef1 fe3da0c7a5
commit 5b28ddf80a
1 file changed
+14 -10
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rtl837x_phy.c
+14 -10
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@@ -332,21 +332,25 @@ void phy_set_speed(void) __banked
phy_write(phy_settings.port, PHY_MMD_AN, PHY_ANEG_CTRL, 0x2000); // Clear bit 12: No Autoneg, Set Extended Pages (bit 13)
if (phy_settings.speed == PHY_SPEED_10M) {
phy_write(phy_settings.port, PHY_MMD_AN, PHY_ANEG_MGBASE_CTRL, 0x6001);
if (!phy_settings.duplex)
phy_write(phy_settings.port, PHY_MMD_AN, PHY_ANEG_ADV, 0x1421);
else if (phy_settings.duplex == 1)
phy_write(phy_settings.port, PHY_MMD_AN, PHY_ANEG_ADV, 0x1441);
uint16_t adv10;
if (phy_settings.duplex == PHY_DUPLEX_HALF)
adv10 = 0x1421;
else if (phy_settings.duplex == PHY_DUPLEX_FULL)
adv10 = 0x1441;
else
phy_write(phy_settings.port, PHY_MMD_AN, PHY_ANEG_ADV, 0x1461);
adv10 = 0x1461;
phy_write(phy_settings.port, PHY_MMD_AN, PHY_ANEG_ADV, adv10);
phy_modify(phy_settings.port, PHY_MMD31, PHY_MMD31_GBCR, 0x0200, 0x0000);
} else if (phy_settings.speed == PHY_SPEED_100M) {
phy_write(phy_settings.port, PHY_MMD_AN, PHY_ANEG_MGBASE_CTRL, 0x6001);
if (!phy_settings.duplex)
phy_write(phy_settings.port, PHY_MMD_AN, PHY_ANEG_ADV, 0x1481);
if (phy_settings.duplex == 1)
phy_write(phy_settings.port, PHY_MMD_AN, PHY_ANEG_ADV, 0x1501);
uint16_t adv100;
if (phy_settings.duplex == PHY_DUPLEX_HALF)
adv100 = 0x1481;
else if (phy_settings.duplex == PHY_DUPLEX_FULL)
adv100 = 0x1501;
else
phy_write(phy_settings.port, PHY_MMD_AN, PHY_ANEG_ADV, 0x1581);
adv100 = 0x1581;
phy_write(phy_settings.port, PHY_MMD_AN, PHY_ANEG_ADV, adv100);
phy_modify(phy_settings.port, PHY_MMD31, PHY_MMD31_GBCR, 0x0200, 0x0000);
} else {
// AN Advertisement Register (MMD 7.0x0010)