From 26c25567751646f2ac45c389019a08e37170da73 Mon Sep 17 00:00:00 2001 From: David Bauer Date: Thu, 11 Apr 2019 17:59:44 +0200 Subject: [PATCH] ath79: allow to override AR8033 SGMII aneg status In order to make the QCA955x SGMII workaround work, the unsuccessful SGMII autonegotiation on the AR8033 should not block the PHY state-machine. Otherwise, the ag71xx driver never becomes aware of the copper-side link-establishment and the workaround is never executed. Signed-off-by: David Bauer [remove one trailing whitespace per file] Signed-off-by: Adrian Schmutzler --- .../425-at803x-allow-sgmii-aneg-override.patch | 16 ++++++++++++++++ .../425-at803x-allow-sgmii-aneg-override.patch | 16 ++++++++++++++++ 2 files changed, 32 insertions(+) create mode 100644 target/linux/ath79/patches-4.14/425-at803x-allow-sgmii-aneg-override.patch create mode 100644 target/linux/ath79/patches-4.19/425-at803x-allow-sgmii-aneg-override.patch diff --git a/target/linux/ath79/patches-4.14/425-at803x-allow-sgmii-aneg-override.patch b/target/linux/ath79/patches-4.14/425-at803x-allow-sgmii-aneg-override.patch new file mode 100644 index 0000000000..b0a1942b7a --- /dev/null +++ b/target/linux/ath79/patches-4.14/425-at803x-allow-sgmii-aneg-override.patch @@ -0,0 +1,16 @@ +--- a/drivers/net/phy/at803x.c ++++ b/drivers/net/phy/at803x.c +@@ -484,6 +484,13 @@ static int at803x_aneg_done(struct phy_d + if (!(phy_read(phydev, AT803X_PSSR) & AT803X_PSSR_MR_AN_COMPLETE)) { + pr_warn("803x_aneg_done: SGMII link is not ok\n"); + aneg_done = 0; ++#ifdef CONFIG_OF_MDIO ++ if (phydev->mdio.dev.of_node && ++ of_property_read_bool(phydev->mdio.dev.of_node, ++ "at803x-override-sgmii-link-check")) { ++ aneg_done = 1; ++ } ++#endif + } + /* switch back to copper page */ + phy_write(phydev, AT803X_REG_CHIP_CONFIG, ccr | AT803X_BT_BX_REG_SEL); diff --git a/target/linux/ath79/patches-4.19/425-at803x-allow-sgmii-aneg-override.patch b/target/linux/ath79/patches-4.19/425-at803x-allow-sgmii-aneg-override.patch new file mode 100644 index 0000000000..b0a1942b7a --- /dev/null +++ b/target/linux/ath79/patches-4.19/425-at803x-allow-sgmii-aneg-override.patch @@ -0,0 +1,16 @@ +--- a/drivers/net/phy/at803x.c ++++ b/drivers/net/phy/at803x.c +@@ -484,6 +484,13 @@ static int at803x_aneg_done(struct phy_d + if (!(phy_read(phydev, AT803X_PSSR) & AT803X_PSSR_MR_AN_COMPLETE)) { + pr_warn("803x_aneg_done: SGMII link is not ok\n"); + aneg_done = 0; ++#ifdef CONFIG_OF_MDIO ++ if (phydev->mdio.dev.of_node && ++ of_property_read_bool(phydev->mdio.dev.of_node, ++ "at803x-override-sgmii-link-check")) { ++ aneg_done = 1; ++ } ++#endif + } + /* switch back to copper page */ + phy_write(phydev, AT803X_REG_CHIP_CONFIG, ccr | AT803X_BT_BX_REG_SEL); -- 2.25.1