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ca4469045f
Replace downstream RealTek PHY patches with backported ones. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
78 lines
2.7 KiB
Diff
78 lines
2.7 KiB
Diff
From c189dbd738243be6775bb6878366bf63e27bfd05 Mon Sep 17 00:00:00 2001
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From: Eric Woudstra <ericwouds@gmail.com>
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Date: Tue, 9 Apr 2024 09:30:12 +0200
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Subject: [PATCH] net: phy: realtek: add get_rate_matching() for rtl822xb PHYs
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Uses vendor register to determine if SerDes is setup in rate-matching mode.
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Rate-matching only supported when SerDes is set to 2500base-x.
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Signed-off-by: Eric Woudstra <ericwouds@gmail.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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drivers/net/phy/realtek.c | 25 +++++++++++++++++++++++++
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1 file changed, 25 insertions(+)
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--- a/drivers/net/phy/realtek.c
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+++ b/drivers/net/phy/realtek.c
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@@ -726,6 +726,27 @@ static int rtl822xb_config_init(struct p
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return phy_write_mmd(phydev, MDIO_MMD_VEND1, 0x6f11, 0x8020);
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}
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+static int rtl822xb_get_rate_matching(struct phy_device *phydev,
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+ phy_interface_t iface)
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+{
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+ int val;
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+
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+ /* Only rate matching at 2500base-x */
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+ if (iface != PHY_INTERFACE_MODE_2500BASEX)
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+ return RATE_MATCH_NONE;
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+
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+ val = phy_read_mmd(phydev, MDIO_MMD_VEND1, RTL822X_VND1_SERDES_OPTION);
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+ if (val < 0)
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+ return val;
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+
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+ if ((val & RTL822X_VND1_SERDES_OPTION_MODE_MASK) ==
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+ RTL822X_VND1_SERDES_OPTION_MODE_2500BASEX)
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+ return RATE_MATCH_PAUSE;
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+
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+ /* RTL822X_VND1_SERDES_OPTION_MODE_2500BASEX_SGMII */
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+ return RATE_MATCH_NONE;
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+}
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+
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static int rtl822x_get_features(struct phy_device *phydev)
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{
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int val;
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@@ -1091,6 +1112,7 @@ static struct phy_driver realtek_drvs[]
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.get_features = rtl822x_get_features,
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.config_aneg = rtl822x_config_aneg,
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.config_init = rtl822xb_config_init,
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+ .get_rate_matching = rtl822xb_get_rate_matching,
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.read_status = rtl822xb_read_status,
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.suspend = genphy_suspend,
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.resume = rtlgen_resume,
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@@ -1114,6 +1136,7 @@ static struct phy_driver realtek_drvs[]
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.get_features = rtl822x_get_features,
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.config_aneg = rtl822x_config_aneg,
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.config_init = rtl822xb_config_init,
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+ .get_rate_matching = rtl822xb_get_rate_matching,
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.read_status = rtl822xb_read_status,
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.suspend = genphy_suspend,
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.resume = rtlgen_resume,
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@@ -1125,6 +1148,7 @@ static struct phy_driver realtek_drvs[]
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.get_features = rtl822x_get_features,
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.config_aneg = rtl822x_config_aneg,
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.config_init = rtl822xb_config_init,
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+ .get_rate_matching = rtl822xb_get_rate_matching,
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.read_status = rtl822xb_read_status,
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.suspend = genphy_suspend,
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.resume = rtlgen_resume,
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@@ -1136,6 +1160,7 @@ static struct phy_driver realtek_drvs[]
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.get_features = rtl822x_get_features,
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.config_aneg = rtl822x_config_aneg,
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.config_init = rtl822xb_config_init,
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+ .get_rate_matching = rtl822xb_get_rate_matching,
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.read_status = rtl822xb_read_status,
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.suspend = genphy_suspend,
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.resume = rtlgen_resume,
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