diff options
| author | Heiner Kallweit <hkallweit1@gmail.com> | 2025-02-13 20:15:42 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-02-14 16:59:29 -0800 |
| commit | 853e80369cfceb2331bf34f251ba11c6602cc67f (patch) | |
| tree | a3a2bf9bb3a136e72a4d01aa0904ea04f131cf00 | |
| parent | 412723d54a8b5d983589cd1c04d634404ec8ac50 (diff) | |
r8169: add PHY c45 ops for MDIO_MMD_VENDOR2 registers
The integrated PHYs on chip versions from RTL8168g allow to address
MDIO_MMD_VEND2 registers. All c22 standard registers are mapped to
MDIO_MMD_VEND2 registers. So far the paging mechanism is used to
address PHY registers. Add support for c45 ops to address MDIO_MMD_VEND2
registers directly, w/o the paging.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/d6f97eaa-0f13-468f-89cb-75a41087bc4a@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/realtek/r8169_main.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c index 9fe53322d7bb..fa339bd8c775 100644 --- a/drivers/net/ethernet/realtek/r8169_main.c +++ b/drivers/net/ethernet/realtek/r8169_main.c @@ -5200,6 +5200,33 @@ static int r8169_mdio_write_reg(struct mii_bus *mii_bus, int phyaddr, return 0; } +static int r8169_mdio_read_reg_c45(struct mii_bus *mii_bus, int addr, + int devnum, int regnum) +{ + struct rtl8169_private *tp = mii_bus->priv; + + if (addr > 0) + return -ENODEV; + + if (devnum == MDIO_MMD_VEND2 && regnum > MDIO_STAT2) + return r8168_phy_ocp_read(tp, regnum); + + return 0; +} + +static int r8169_mdio_write_reg_c45(struct mii_bus *mii_bus, int addr, + int devnum, int regnum, u16 val) +{ + struct rtl8169_private *tp = mii_bus->priv; + + if (addr > 0 || devnum != MDIO_MMD_VEND2 || regnum <= MDIO_STAT2) + return -ENODEV; + + r8168_phy_ocp_write(tp, regnum, val); + + return 0; +} + static int r8169_mdio_register(struct rtl8169_private *tp) { struct pci_dev *pdev = tp->pci_dev; @@ -5230,6 +5257,11 @@ static int r8169_mdio_register(struct rtl8169_private *tp) new_bus->read = r8169_mdio_read_reg; new_bus->write = r8169_mdio_write_reg; + if (tp->mac_version >= RTL_GIGA_MAC_VER_40) { + new_bus->read_c45 = r8169_mdio_read_reg_c45; + new_bus->write_c45 = r8169_mdio_write_reg_c45; + } + ret = devm_mdiobus_register(&pdev->dev, new_bus); if (ret) return ret; |