diff options
| author | Eric Woudstra <ericwouds@gmail.com> | 2024-04-09 10:30:12 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2024-04-12 12:18:18 +0300 |
| commit | c189dbd738243be6775bb6878366bf63e27bfd05 (patch) | |
| tree | a3bff2413ae329c24c8ff2b6d98238731e22d59d /drivers/net/phy/realtek.c | |
| parent | deb8af5243504e379878ae3f9a091b21422d65b2 (diff) | |
| download | linux-c189dbd738243be6775bb6878366bf63e27bfd05.tar.xz | |
net: phy: realtek: add get_rate_matching() for rtl822xb PHYs
Uses vendor register to determine if SerDes is setup in rate-matching mode.
Rate-matching only supported when SerDes is set to 2500base-x.
Signed-off-by: Eric Woudstra <ericwouds@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/phy/realtek.c')
| -rw-r--r-- | drivers/net/phy/realtek.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c index 70cd1834a832..08d338271bd0 100644 --- a/drivers/net/phy/realtek.c +++ b/drivers/net/phy/realtek.c @@ -726,6 +726,27 @@ static int rtl822xb_config_init(struct phy_device *phydev) return phy_write_mmd(phydev, MDIO_MMD_VEND1, 0x6f11, 0x8020); } +static int rtl822xb_get_rate_matching(struct phy_device *phydev, + phy_interface_t iface) +{ + int val; + + /* Only rate matching at 2500base-x */ + if (iface != PHY_INTERFACE_MODE_2500BASEX) + return RATE_MATCH_NONE; + + val = phy_read_mmd(phydev, MDIO_MMD_VEND1, RTL822X_VND1_SERDES_OPTION); + if (val < 0) + return val; + + if ((val & RTL822X_VND1_SERDES_OPTION_MODE_MASK) == + RTL822X_VND1_SERDES_OPTION_MODE_2500BASEX) + return RATE_MATCH_PAUSE; + + /* RTL822X_VND1_SERDES_OPTION_MODE_2500BASEX_SGMII */ + return RATE_MATCH_NONE; +} + static int rtl822x_get_features(struct phy_device *phydev) { int val; @@ -1091,6 +1112,7 @@ static struct phy_driver realtek_drvs[] = { .get_features = rtl822x_get_features, .config_aneg = rtl822x_config_aneg, .config_init = rtl822xb_config_init, + .get_rate_matching = rtl822xb_get_rate_matching, .read_status = rtl822xb_read_status, .suspend = genphy_suspend, .resume = rtlgen_resume, @@ -1114,6 +1136,7 @@ static struct phy_driver realtek_drvs[] = { .get_features = rtl822x_get_features, .config_aneg = rtl822x_config_aneg, .config_init = rtl822xb_config_init, + .get_rate_matching = rtl822xb_get_rate_matching, .read_status = rtl822xb_read_status, .suspend = genphy_suspend, .resume = rtlgen_resume, @@ -1125,6 +1148,7 @@ static struct phy_driver realtek_drvs[] = { .get_features = rtl822x_get_features, .config_aneg = rtl822x_config_aneg, .config_init = rtl822xb_config_init, + .get_rate_matching = rtl822xb_get_rate_matching, .read_status = rtl822xb_read_status, .suspend = genphy_suspend, .resume = rtlgen_resume, @@ -1136,6 +1160,7 @@ static struct phy_driver realtek_drvs[] = { .get_features = rtl822x_get_features, .config_aneg = rtl822x_config_aneg, .config_init = rtl822xb_config_init, + .get_rate_matching = rtl822xb_get_rate_matching, .read_status = rtl822xb_read_status, .suspend = genphy_suspend, .resume = rtlgen_resume, |