1eab9b8a9b
bfc17c1658353 net: phy: realtek: disable PHY-mode EEE fabcfd6d10999 net: phy: realtek: add defines for shadowed c45 standard registers 8af2136e77989 net: phy: realtek: add helper RTL822X_VND2_C22_REG 02d3b306ac2f0 net: phy: realtek: switch from paged to MMD ops in rtl822x functions da681ed73fb98 net: phy: realtek: improve mmd register access for internal PHY's 0bea93fdbaf86 net: phy: realtek: use string choices helpers 51773846fab24 net: phy: realtek: make HWMON support a user-visible Kconfig symbol Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> (cherry picked from commit 7673a165a955269773eb604d3678d86d0bb7f49c)
55 lines
1.8 KiB
Diff
55 lines
1.8 KiB
Diff
From bfc17c1658353f22843c7c13e27c2d31950f1887 Mon Sep 17 00:00:00 2001
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From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
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Date: Sun, 16 Mar 2025 12:39:54 +0000
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Subject: [PATCH] net: phy: realtek: disable PHY-mode EEE
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Realtek RTL8211F has a "PHY-mode" EEE support which interferes with an
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IEEE 802.3 compliant implementation. This mode defaults to enabled, and
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results in the MAC receive path not seeing the link transition to LPI
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state.
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Fix this by disabling PHY-mode EEE.
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Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
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Reviewed-by: Andrew Lunn <andrew@lunn.ch>
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Link: https://patch.msgid.link/E1ttnHW-00785s-Uq@rmk-PC.armlinux.org.uk
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Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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---
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drivers/net/phy/realtek/realtek_main.c | 11 +++++++++--
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1 file changed, 9 insertions(+), 2 deletions(-)
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--- a/drivers/net/phy/realtek/realtek_main.c
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+++ b/drivers/net/phy/realtek/realtek_main.c
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@@ -33,6 +33,9 @@
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#define RTL8211F_PHYCR1 0x18
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#define RTL8211F_PHYCR2 0x19
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+#define RTL8211F_CLKOUT_EN BIT(0)
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+#define RTL8211F_PHYCR2_PHY_EEE_ENABLE BIT(5)
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+
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#define RTL8211F_INSR 0x1d
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#define RTL8211F_LEDCR 0x10
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@@ -55,8 +58,6 @@
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#define RTL8211E_TX_DELAY BIT(12)
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#define RTL8211E_RX_DELAY BIT(11)
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-#define RTL8211F_CLKOUT_EN BIT(0)
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-
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#define RTL8201F_ISR 0x1e
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#define RTL8201F_ISR_ANERR BIT(15)
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#define RTL8201F_ISR_DUPLEX BIT(13)
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@@ -453,6 +454,12 @@ static int rtl8211f_config_init(struct p
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str_enabled_disabled(val_rxdly));
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}
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+ /* Disable PHY-mode EEE so LPI is passed to the MAC */
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+ ret = phy_modify_paged(phydev, 0xa43, RTL8211F_PHYCR2,
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+ RTL8211F_PHYCR2_PHY_EEE_ENABLE, 0);
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+ if (ret)
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+ return ret;
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+
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if (priv->has_phycr2) {
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ret = phy_modify_paged(phydev, 0xa43, RTL8211F_PHYCR2,
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RTL8211F_CLKOUT_EN, priv->phycr2);
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