From 2441ba4806a184f82609aae07921d19c9377d040 Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Thu, 15 Aug 2019 13:19:22 +0200 Subject: [PATCH] net: phy: swphy: emulate register MII_ESTATUS When the genphy driver binds to a swphy it will call genphy_read_abilites that will try to read MII_ESTATUS if BMSR_ESTATEN is set in MII_BMSR. So far this would read the default value 0xffff and 1000FD and 1000HD are reported as supported just by chance. Better add explicit support for emulating MII_ESTATUS. Signed-off-by: Heiner Kallweit Reviewed-by: Andrew Lunn Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/phy/swphy.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/net/phy/swphy.c b/drivers/net/phy/swphy.c index dad22481d9c1..53c214a22b95 100644 --- a/drivers/net/phy/swphy.c +++ b/drivers/net/phy/swphy.c @@ -22,6 +22,7 @@ struct swmii_regs { u16 bmsr; u16 lpa; u16 lpagb; + u16 estat; }; enum { @@ -48,6 +49,7 @@ static const struct swmii_regs speed[] = { [SWMII_SPEED_1000] = { .bmsr = BMSR_ESTATEN, .lpagb = LPA_1000FULL | LPA_1000HALF, + .estat = ESTATUS_1000_TFULL | ESTATUS_1000_THALF, }, }; @@ -56,11 +58,13 @@ static const struct swmii_regs duplex[] = { .bmsr = BMSR_ESTATEN | BMSR_100HALF, .lpa = LPA_10HALF | LPA_100HALF, .lpagb = LPA_1000HALF, + .estat = ESTATUS_1000_THALF, }, [SWMII_DUPLEX_FULL] = { .bmsr = BMSR_ESTATEN | BMSR_100FULL, .lpa = LPA_10FULL | LPA_100FULL, .lpagb = LPA_1000FULL, + .estat = ESTATUS_1000_TFULL, }, }; @@ -112,6 +116,7 @@ int swphy_read_reg(int reg, const struct fixed_phy_status *state) { int speed_index, duplex_index; u16 bmsr = BMSR_ANEGCAPABLE; + u16 estat = 0; u16 lpagb = 0; u16 lpa = 0; @@ -125,6 +130,7 @@ int swphy_read_reg(int reg, const struct fixed_phy_status *state) duplex_index = state->duplex ? SWMII_DUPLEX_FULL : SWMII_DUPLEX_HALF; bmsr |= speed[speed_index].bmsr & duplex[duplex_index].bmsr; + estat |= speed[speed_index].estat & duplex[duplex_index].estat; if (state->link) { bmsr |= BMSR_LSTATUS | BMSR_ANEGCOMPLETE; @@ -151,6 +157,8 @@ int swphy_read_reg(int reg, const struct fixed_phy_status *state) return lpa; case MII_STAT1000: return lpagb; + case MII_ESTATUS: + return estat; /* * We do not support emulating Clause 45 over Clause 22 register