netdev - [PATCH net] r8169: fix rtl8168h rx crc error

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Message-ID: <20230322064550.2378-1-hau@realtek.com>
Date:   Wed, 22 Mar 2023 14:45:50 +0800
From:   ChunHao Lin <hau@...ltek.com>
To:     <hkallweit1@...il.com>
CC:     <netdev@...r.kernel.org>, <nic_swsd@...ltek.com>,
        ChunHao Lin <hau@...ltek.com>
Subject: [PATCH net] r8169: fix rtl8168h rx crc error

When link speed is 10 Mbps and temperature is under -20°C, rtl8168h may
have rx crc error. Disable phy 10 Mbps pll off to fix this issue.

Signed-off-by: ChunHao Lin <hau@...ltek.com>
---
 drivers/net/ethernet/realtek/r8169_phy_config.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/realtek/r8169_phy_config.c b/drivers/net/ethernet/realtek/r8169_phy_config.c
index 930496cd34ed..b50f16786c24 100644
--- a/drivers/net/ethernet/realtek/r8169_phy_config.c
+++ b/drivers/net/ethernet/realtek/r8169_phy_config.c
@@ -826,6 +826,9 @@ static void rtl8168h_2_hw_phy_config(struct rtl8169_private *tp,
 	/* disable phy pfm mode */
 	phy_modify_paged(phydev, 0x0a44, 0x11, BIT(7), 0);
 
+	/* disable 10m pll off */
+	phy_modify_paged(phydev, 0x0a43, 0x10, BIT(0), 0);
+
 	rtl8168g_disable_aldps(phydev);
 	rtl8168g_config_eee_phy(phydev);
 }
-- 
2.37.2