diff options
author | Heiner Kallweit <hkallweit1@gmail.com> | 2019-08-16 22:57:38 +0300 |
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committer | David S. Miller <davem@davemloft.net> | 2019-08-19 23:04:45 +0300 |
commit | edde25e55d87f0046db64ed7ce634e5a586229e3 (patch) | |
tree | c0c8509a8bc747b3c71284460616a86cc635aafb /drivers | |
parent | 99b60d56a35b18af267f275559a530db372bfad7 (diff) | |
download | linux-edde25e55d87f0046db64ed7ce634e5a586229e3.tar.xz |
net: phy: realtek: support NBase-T MMD EEE registers on RTL8125
Emulate the 802.3bz MMD EEE registers for 2.5Gbps EEE on RTL8125.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/net/phy/realtek.c | 45 |
1 files changed, 43 insertions, 2 deletions
diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c index fa662099fb85..677c45985338 100644 --- a/drivers/net/phy/realtek.c +++ b/drivers/net/phy/realtek.c @@ -305,6 +305,47 @@ static int rtlgen_write_mmd(struct phy_device *phydev, int devnum, u16 regnum, return ret; } +static int rtl8125_read_mmd(struct phy_device *phydev, int devnum, u16 regnum) +{ + int ret = rtlgen_read_mmd(phydev, devnum, regnum); + + if (ret != -EOPNOTSUPP) + return ret; + + if (devnum == MDIO_MMD_PCS && regnum == MDIO_PCS_EEE_ABLE2) { + rtl821x_write_page(phydev, 0xa6e); + ret = __phy_read(phydev, 0x16); + rtl821x_write_page(phydev, 0); + } else if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_ADV2) { + rtl821x_write_page(phydev, 0xa6d); + ret = __phy_read(phydev, 0x12); + rtl821x_write_page(phydev, 0); + } else if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_LPABLE2) { + rtl821x_write_page(phydev, 0xa6d); + ret = __phy_read(phydev, 0x10); + rtl821x_write_page(phydev, 0); + } + + return ret; +} + +static int rtl8125_write_mmd(struct phy_device *phydev, int devnum, u16 regnum, + u16 val) +{ + int ret = rtlgen_write_mmd(phydev, devnum, regnum, val); + + if (ret != -EOPNOTSUPP) + return ret; + + if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_ADV2) { + rtl821x_write_page(phydev, 0xa6d); + ret = __phy_write(phydev, 0x12, val); + rtl821x_write_page(phydev, 0); + } + + return ret; +} + static int rtl8125_get_features(struct phy_device *phydev) { int val; @@ -473,8 +514,8 @@ static struct phy_driver realtek_drvs[] = { .resume = genphy_resume, .read_page = rtl821x_read_page, .write_page = rtl821x_write_page, - .read_mmd = rtlgen_read_mmd, - .write_mmd = rtlgen_write_mmd, + .read_mmd = rtl8125_read_mmd, + .write_mmd = rtl8125_write_mmd, }, { PHY_ID_MATCH_EXACT(0x001cc961), .name = "RTL8366RB Gigabit Ethernet", |