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kernel: net: phy: realtek: fix C22-only mode on 2.5GE PHYs

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Import 2 patches completing and fixing the RealTek's 2.5GE PHYs when being
used in Clause-22 mode.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
This commit is contained in:
Daniel Golle 2026-01-05 18:12:40 +00:00
parent 96ff31b94a
commit 6aaffddf27
4 changed files with 59 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
target/linux/generic/pending-6.12/720-07-net-phy-realtek-mark-existing-MMDs-as-present.patch → target/linux/generic/pending-6.12/720-06-net-phy-realtek-mark-existing-MMDs-as-present.patch
View File

@ -15,7 +15,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
--- a/drivers/net/phy/realtek/realtek_main.c
+++ b/drivers/net/phy/realtek/realtek_main.c
@@ -1626,6 +1626,9 @@ static int rtl822x_c45_get_features(stru
@@ -1595,6 +1595,9 @@ static int rtl822x_c45_get_features(stru
linkmode_set_bit(ETHTOOL_LINK_MODE_TP_BIT,
phydev->supported);

4
target/linux/generic/pending-6.12/720-09-net-phy-realtek-disable-MDIO-broadcast.patch → target/linux/generic/pending-6.12/720-07-net-phy-realtek-disable-MDIO-broadcast.patch
View File

@ -13,7 +13,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
--- a/drivers/net/phy/realtek/realtek_main.c
+++ b/drivers/net/phy/realtek/realtek_main.c
@@ -174,6 +174,7 @@
@@ -173,6 +173,7 @@
#define RTL8221B_PHYCR1 0xa430
#define RTL8221B_PHYCR1_ALDPS_EN BIT(2)
#define RTL8221B_PHYCR1_ALDPS_XTAL_OFF_EN BIT(12)
@ -21,7 +21,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
#define RTL8366RB_POWER_SAVE 0x15
#define RTL8366RB_POWER_SAVE_ON BIT(12)
@@ -1381,7 +1382,8 @@ static int rtl822x_init_phycr1(struct ph
@@ -1350,7 +1351,8 @@ static int rtl822x_init_phycr1(struct ph
return phy_modify_mmd_changed(phydev, MDIO_MMD_VEND2, RTL8221B_PHYCR1,
RTL8221B_PHYCR1_ALDPS_EN |

22
target/linux/generic/pending-6.12/720-08-net-phy-realtek-rate-adapter-in-C22-mode.patch Normal file
View File

@ -0,0 +1,22 @@
From: Daniel Golle <daniel@makrotopia.org>
Date: Mon, 5 Jan 2026 17:55:02 +0000
Subject: [PATCH] net: phy: realtek: rate-adapter in C22 mode
Use rate-adapter mode in case the PHY is connected to the host using
Clause-22 MDIO.
This is necessary because phylink only handles dynamically switching the
interface mode if the PHY is connected using Clause-45 MDIO.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
--- a/drivers/net/phy/realtek/realtek_main.c
+++ b/drivers/net/phy/realtek/realtek_main.c
@@ -1379,7 +1379,7 @@ static int rtl822x_set_serdes_option_mod
return 0;
/* determine SerDes option mode */
- if (has_2500 && !has_sgmii) {
+ if (has_2500 && (!has_sgmii || !phydev->is_c45)) {
mode = RTL822X_VND1_SERDES_OPTION_MODE_2500BASEX;
phydev->rate_matching = RATE_MATCH_PAUSE;
} else {

34
target/linux/generic/pending-6.12/720-09-net-phy-realtek-support-interrupt-also-for-C22-varia.patch Normal file
View File

@ -0,0 +1,34 @@
From 98a5d7606b7bc9136205969418385e4c9bf8ce56 Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Mon, 5 Jan 2026 16:59:06 +0000
Subject: [PATCH] net: phy: realtek: support interrupt also for C22 variants
Now that access to MDIO_MMD_VEND2 works transparently also in Clause-22
mode, add interrupt support also for the C22 variants of the
RTL8221B-VB-CG and RTL8221B-VM-CG.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
drivers/net/phy/realtek/realtek_main.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/net/phy/realtek/realtek_main.c
+++ b/drivers/net/phy/realtek/realtek_main.c
@@ -2347,6 +2347,8 @@ static struct phy_driver realtek_drvs[]
}, {
.match_phy_device = rtl8221b_vb_cg_c22_match_phy_device,
.name = "RTL8221B-VB-CG 2.5Gbps PHY (C22)",
+ .config_intr = rtl8221b_config_intr,
+ .handle_interrupt = rtl8221b_handle_interrupt,
.soft_reset = genphy_soft_reset,
.probe = rtl822x_probe,
.get_features = rtl822x_get_features,
@@ -2381,6 +2383,8 @@ static struct phy_driver realtek_drvs[]
}, {
.match_phy_device = rtl8221b_vm_cg_c22_match_phy_device,
.name = "RTL8221B-VM-CG 2.5Gbps PHY (C22)",
+ .config_intr = rtl8221b_config_intr,
+ .handle_interrupt = rtl8221b_handle_interrupt,
.soft_reset = genphy_soft_reset,
.probe = rtl822x_probe,
.get_features = rtl822x_get_features,