linux-kernel - [PATCH net-next v1] r8169: add support for RTL8125cp

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Message-ID: <20260130093545.1753-1-javen_xu@realsil.com.cn>
Date: Fri, 30 Jan 2026 17:35:44 +0800
From: javen <javen_xu@...lsil.com.cn>
To: <hkallweit1@...il.com>, <nic_swsd@...ltek.com>, <andrew+netdev@...n.ch>,
        <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
        <pabeni@...hat.com>, <horms@...nel.org>
CC: <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Javen Xu
	<javen_xu@...lsil.com.cn>
Subject: [PATCH net-next v1] r8169: add support for RTL8125cp

From: Javen Xu <javen_xu@...lsil.com.cn>

This patch adds support for chip RTL8125cp. Its XID is 0x708. We apply
different and firmware for RTL8125cp.

Signed-off-by: Javen Xu <javen_xu@...lsil.com.cn>
---
 drivers/net/ethernet/realtek/r8169.h          |  1 +
 drivers/net/ethernet/realtek/r8169_main.c     |  6 +++++
 .../net/ethernet/realtek/r8169_phy_config.c   | 22 +++++++++++++++++++
 3 files changed, 29 insertions(+)

diff --git a/drivers/net/ethernet/realtek/r8169.h b/drivers/net/ethernet/realtek/r8169.h
index aed4cf852091..0b9c1d4eb48b 100644
--- a/drivers/net/ethernet/realtek/r8169.h
+++ b/drivers/net/ethernet/realtek/r8169.h
@@ -68,6 +68,7 @@ enum mac_version {
 	RTL_GIGA_MAC_VER_61,
 	RTL_GIGA_MAC_VER_63,
 	RTL_GIGA_MAC_VER_64,
+	RTL_GIGA_MAC_VER_65,
 	RTL_GIGA_MAC_VER_66,
 	RTL_GIGA_MAC_VER_70,
 	RTL_GIGA_MAC_VER_80,
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index 2f7d9809c373..d040f2074db6 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -60,6 +60,7 @@
 #define FIRMWARE_8125D_2	"rtl_nic/rtl8125d-2.fw"
 #define FIRMWARE_8125K_1	"rtl_nic/rtl8125k-1.fw"
 #define FIRMWARE_8125BP_2	"rtl_nic/rtl8125bp-2.fw"
+#define FIRMWARE_8125CP_1	"rtl_nic/rtl8125cp-1.fw"
 #define FIRMWARE_9151A_1	"rtl_nic/rtl9151a-1.fw"
 #define FIRMWARE_8126A_2	"rtl_nic/rtl8126a-2.fw"
 #define FIRMWARE_8126A_3	"rtl_nic/rtl8126a-3.fw"
@@ -112,6 +113,9 @@ static const struct rtl_chip_info {
 	/* 8125BP family. */
 	{ 0x7cf, 0x681,	RTL_GIGA_MAC_VER_66, "RTL8125BP", FIRMWARE_8125BP_2 },
 
+	/* 8125CP family*/
+	{ 0x7cf, 0x708, RTL_GIGA_MAC_VER_65, "RTL8125CP", FIRMWARE_8125CP_1 },
+
 	/* 8125D family. */
 	{ 0x7cf, 0x68b, RTL_GIGA_MAC_VER_64, "RTL9151A", FIRMWARE_9151A_1 },
 	{ 0x7cf, 0x68a, RTL_GIGA_MAC_VER_64, "RTL8125K", FIRMWARE_8125K_1 },
@@ -802,6 +806,7 @@ MODULE_FIRMWARE(FIRMWARE_8125D_1);
 MODULE_FIRMWARE(FIRMWARE_8125D_2);
 MODULE_FIRMWARE(FIRMWARE_8125K_1);
 MODULE_FIRMWARE(FIRMWARE_8125BP_2);
+MODULE_FIRMWARE(FIRMWARE_8125CP_1);
 MODULE_FIRMWARE(FIRMWARE_9151A_1);
 MODULE_FIRMWARE(FIRMWARE_8126A_2);
 MODULE_FIRMWARE(FIRMWARE_8126A_3);
@@ -4021,6 +4026,7 @@ static void rtl_hw_config(struct rtl8169_private *tp)
 		[RTL_GIGA_MAC_VER_61] = rtl_hw_start_8125a_2,
 		[RTL_GIGA_MAC_VER_63] = rtl_hw_start_8125b,
 		[RTL_GIGA_MAC_VER_64] = rtl_hw_start_8125d,
+		[RTL_GIGA_MAC_VER_65] = rtl_hw_start_8125d,
 		[RTL_GIGA_MAC_VER_66] = rtl_hw_start_8125d,
 		[RTL_GIGA_MAC_VER_70] = rtl_hw_start_8126a,
 		[RTL_GIGA_MAC_VER_80] = rtl_hw_start_8127a,
diff --git a/drivers/net/ethernet/realtek/r8169_phy_config.c b/drivers/net/ethernet/realtek/r8169_phy_config.c
index 032d9d2cfa2a..1896d0ce42ac 100644
--- a/drivers/net/ethernet/realtek/r8169_phy_config.c
+++ b/drivers/net/ethernet/realtek/r8169_phy_config.c
@@ -1102,6 +1102,27 @@ static void rtl8125d_hw_phy_config(struct rtl8169_private *tp,
 	rtl8125_config_eee_phy(phydev);
 }
 
+static void rtl8125cp_hw_phy_config(struct rtl8169_private *tp,
+				    struct phy_device *phydev)
+{
+	r8169_apply_firmware(tp);
+	rtl8168g_enable_gphy_10m(phydev);
+
+	phy_modify_paged(phydev, 0xad0, 0x17, 0x007f, 0x000b);
+	phy_modify_paged(phydev, 0xad7, 0x14, 0x0000, BIT(4));
+	rtl8125_phy_param(phydev, 0x807f, 0xff00, 0x5300);
+	r8168g_phy_param(phydev, 0x81b8, 0xffff, 0x00b4);
+	r8168g_phy_param(phydev, 0x81ba, 0xffff, 0x00e4);
+	r8168g_phy_param(phydev, 0x81c5, 0xffff, 0x0104);
+	r8168g_phy_param(phydev, 0x81d0, 0xffff, 0x054d);
+	phy_modify_paged(phydev, 0xa43, 0x00, 0x0000, 0x1001);
+	phy_modify_paged(phydev, 0xa44, 0x11, 0x0000, BIT(7));
+
+	rtl8125_legacy_force_mode(phydev);
+	rtl8168g_disable_aldps(phydev);
+	rtl8125_config_eee_phy(phydev);
+}
+
 static void rtl8125bp_hw_phy_config(struct rtl8169_private *tp,
 				    struct phy_device *phydev)
 {
@@ -1344,6 +1365,7 @@ void r8169_hw_phy_config(struct rtl8169_private *tp, struct phy_device *phydev,
 		[RTL_GIGA_MAC_VER_61] = rtl8125a_2_hw_phy_config,
 		[RTL_GIGA_MAC_VER_63] = rtl8125b_hw_phy_config,
 		[RTL_GIGA_MAC_VER_64] = rtl8125d_hw_phy_config,
+		[RTL_GIGA_MAC_VER_65] = rtl8125cp_hw_phy_config,
 		[RTL_GIGA_MAC_VER_66] = rtl8125bp_hw_phy_config,
 		[RTL_GIGA_MAC_VER_70] = rtl8126a_hw_phy_config,
 		[RTL_GIGA_MAC_VER_80] = rtl8127a_1_hw_phy_config,
-- 
2.43.0