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generic: 6.6: backport upstream v6.15 Realtek PHY patches

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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)
This commit is contained in:
Álvaro Fernández Rojas 2025-04-22 14:39:05 +02:00
parent 5663f8e166
commit 1eab9b8a9b
16 changed files with 515 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
target/linux/generic/backport-6.6/781-27-v6.15-net-phy-realtek-make-HWMON-support-a-user-visible-Kc.patch Normal file
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@ -0,0 +1,35 @@
From 51773846fab24a353bed4ebb660997ced4bc32d7 Mon Sep 17 00:00:00 2001
From: Heiner Kallweit <hkallweit1@gmail.com>
Date: Mon, 3 Feb 2025 21:33:39 +0100
Subject: [PATCH] net: phy: realtek: make HWMON support a user-visible Kconfig
symbol
Make config symbol REALTEK_PHY_HWMON user-visible, so that users can
remove support if not needed.
Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/3466ee92-166a-4b0f-9ae7-42b9e046f333@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/realtek/Kconfig | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
--- a/drivers/net/phy/realtek/Kconfig
+++ b/drivers/net/phy/realtek/Kconfig
@@ -4,8 +4,12 @@ config REALTEK_PHY
help
Currently supports RTL821x/RTL822x and fast ethernet PHYs
+if REALTEK_PHY
+
config REALTEK_PHY_HWMON
- def_bool REALTEK_PHY && HWMON
- depends on !(REALTEK_PHY=y && HWMON=m)
+ bool "HWMON support for Realtek PHYs"
+ depends on HWMON && !(REALTEK_PHY=y && HWMON=m)
help
Optional hwmon support for the temperature sensor
+
+endif # REALTEK_PHY

54
target/linux/generic/backport-6.6/781-28-v6.15-net-phy-realtek-use-string-choices-helpers.patch Normal file
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@ -0,0 +1,54 @@
From 0bea93fdbaf8675b7e8124bdcaf51497dcc8bcfa Mon Sep 17 00:00:00 2001
From: Heiner Kallweit <hkallweit1@gmail.com>
Date: Mon, 3 Feb 2025 21:41:36 +0100
Subject: [PATCH] net: phy: realtek: use string choices helpers
Use string choices helpers to simplify the code.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202501190707.qQS8PGHW-lkp@intel.com/
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/phy/realtek/realtek_main.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
--- a/drivers/net/phy/realtek/realtek_main.c
+++ b/drivers/net/phy/realtek/realtek_main.c
@@ -13,6 +13,7 @@
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/clk.h>
+#include <linux/string_choices.h>
#include "realtek.h"
@@ -422,11 +423,11 @@ static int rtl8211f_config_init(struct p
} else if (ret) {
dev_dbg(dev,
"%s 2ns TX delay (and changing the value from pin-strapping RXD1 or the bootloader)\n",
- val_txdly ? "Enabling" : "Disabling");
+ str_enable_disable(val_txdly));
} else {
dev_dbg(dev,
"2ns TX delay was already %s (by pin-strapping RXD1 or bootloader configuration)\n",
- val_txdly ? "enabled" : "disabled");
+ str_enabled_disabled(val_txdly));
}
ret = phy_modify_paged_changed(phydev, 0xd08, 0x15, RTL8211F_RX_DELAY,
@@ -437,11 +438,11 @@ static int rtl8211f_config_init(struct p
} else if (ret) {
dev_dbg(dev,
"%s 2ns RX delay (and changing the value from pin-strapping RXD0 or the bootloader)\n",
- val_rxdly ? "Enabling" : "Disabling");
+ str_enable_disable(val_rxdly));
} else {
dev_dbg(dev,
"2ns RX delay was already %s (by pin-strapping RXD0 or bootloader configuration)\n",
- val_rxdly ? "enabled" : "disabled");
+ str_enabled_disabled(val_rxdly));
}
if (priv->has_phycr2) {

134
target/linux/generic/backport-6.6/781-29-v6.15-net-phy-realtek-improve-mmd-register-access-for-inte.patch Normal file
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@ -0,0 +1,134 @@
From da681ed73fb980286fc29de707b35d76bb33e123 Mon Sep 17 00:00:00 2001
From: Heiner Kallweit <hkallweit1@gmail.com>
Date: Thu, 13 Feb 2025 20:18:17 +0100
Subject: [PATCH] net: phy: realtek: improve mmd register access for internal
PHY's
r8169 provides the MDIO bus for the internal PHY's. It has been extended
with c45 access functions for addressing MDIO_MMD_VEND2 registers.
So we can switch from paged access to directly addressing the
MDIO_MMD_VEND2 registers.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/a5f2333c-dda9-48ad-9801-77049766e632@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/realtek/realtek_main.c | 79 +++++++++++---------------
1 file changed, 33 insertions(+), 46 deletions(-)
--- a/drivers/net/phy/realtek/realtek_main.c
+++ b/drivers/net/phy/realtek/realtek_main.c
@@ -735,29 +735,31 @@ static int rtlgen_read_status(struct phy
return 0;
}
+static int rtlgen_read_vend2(struct phy_device *phydev, int regnum)
+{
+ return __mdiobus_c45_read(phydev->mdio.bus, 0, MDIO_MMD_VEND2, regnum);
+}
+
+static int rtlgen_write_vend2(struct phy_device *phydev, int regnum, u16 val)
+{
+ return __mdiobus_c45_write(phydev->mdio.bus, 0, MDIO_MMD_VEND2, regnum,
+ val);
+}
+
static int rtlgen_read_mmd(struct phy_device *phydev, int devnum, u16 regnum)
{
int ret;
- if (devnum == MDIO_MMD_VEND2) {
- rtl821x_write_page(phydev, regnum >> 4);
- ret = __phy_read(phydev, 0x10 + ((regnum & 0xf) >> 1));
- rtl821x_write_page(phydev, 0);
- } else if (devnum == MDIO_MMD_PCS && regnum == MDIO_PCS_EEE_ABLE) {
- rtl821x_write_page(phydev, 0xa5c);
- ret = __phy_read(phydev, 0x12);
- rtl821x_write_page(phydev, 0);
- } else if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_ADV) {
- rtl821x_write_page(phydev, 0xa5d);
- ret = __phy_read(phydev, 0x10);
- rtl821x_write_page(phydev, 0);
- } else if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_LPABLE) {
- rtl821x_write_page(phydev, 0xa5d);
- ret = __phy_read(phydev, 0x11);
- rtl821x_write_page(phydev, 0);
- } else {
+ if (devnum == MDIO_MMD_VEND2)
+ ret = rtlgen_read_vend2(phydev, regnum);
+ else if (devnum == MDIO_MMD_PCS && regnum == MDIO_PCS_EEE_ABLE)
+ ret = rtlgen_read_vend2(phydev, 0xa5c4);
+ else if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_ADV)
+ ret = rtlgen_read_vend2(phydev, 0xa5d0);
+ else if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_LPABLE)
+ ret = rtlgen_read_vend2(phydev, 0xa5d2);
+ else
ret = -EOPNOTSUPP;
- }
return ret;
}
@@ -767,17 +769,12 @@ static int rtlgen_write_mmd(struct phy_d
{
int ret;
- if (devnum == MDIO_MMD_VEND2) {
- rtl821x_write_page(phydev, regnum >> 4);
- ret = __phy_write(phydev, 0x10 + ((regnum & 0xf) >> 1), val);
- rtl821x_write_page(phydev, 0);
- } else if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_ADV) {
- rtl821x_write_page(phydev, 0xa5d);
- ret = __phy_write(phydev, 0x10, val);
- rtl821x_write_page(phydev, 0);
- } else {
+ if (devnum == MDIO_MMD_VEND2)
+ ret = rtlgen_write_vend2(phydev, regnum, val);
+ else if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_ADV)
+ ret = rtlgen_write_vend2(phydev, regnum, 0xa5d0);
+ else
ret = -EOPNOTSUPP;
- }
return ret;
}
@@ -789,19 +786,12 @@ static int rtl822x_read_mmd(struct phy_d
if (ret != -EOPNOTSUPP)
return ret;
- if (devnum == MDIO_MMD_PCS && regnum == MDIO_PCS_EEE_ABLE2) {
- rtl821x_write_page(phydev, 0xa6e);
- ret = __phy_read(phydev, 0x16);
- rtl821x_write_page(phydev, 0);
- } else if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_ADV2) {
- rtl821x_write_page(phydev, 0xa6d);
- ret = __phy_read(phydev, 0x12);
- rtl821x_write_page(phydev, 0);
- } else if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_LPABLE2) {
- rtl821x_write_page(phydev, 0xa6d);
- ret = __phy_read(phydev, 0x10);
- rtl821x_write_page(phydev, 0);
- }
+ if (devnum == MDIO_MMD_PCS && regnum == MDIO_PCS_EEE_ABLE2)
+ ret = rtlgen_read_vend2(phydev, 0xa6ec);
+ else if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_ADV2)
+ ret = rtlgen_read_vend2(phydev, 0xa6d4);
+ else if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_LPABLE2)
+ ret = rtlgen_read_vend2(phydev, 0xa6d0);
return ret;
}
@@ -814,11 +804,8 @@ static int rtl822x_write_mmd(struct phy_
if (ret != -EOPNOTSUPP)
return ret;
- if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_ADV2) {
- rtl821x_write_page(phydev, 0xa6d);
- ret = __phy_write(phydev, 0x12, val);
- rtl821x_write_page(phydev, 0);
- }
+ if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_ADV2)
+ ret = rtlgen_write_vend2(phydev, 0xa6d4, val);
return ret;
}

52
target/linux/generic/backport-6.6/781-30-v6.15-net-phy-realtek-switch-from-paged-to-MMD-ops-in-rtl8.patch Normal file
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@ -0,0 +1,52 @@
From 02d3b306ac2f0b174753d1c5b9e4e5fb8ec5057e Mon Sep 17 00:00:00 2001
From: Heiner Kallweit <hkallweit1@gmail.com>
Date: Thu, 13 Feb 2025 20:19:14 +0100
Subject: [PATCH] net: phy: realtek: switch from paged to MMD ops in rtl822x
functions
The MDIO bus provided by r8169 for the internal PHY's now supports
c45 ops for the MDIO_MMD_VEND2 device. So we can switch to standard
MMD ops here.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/81416f95-0fac-4225-87b4-828e3738b8ed@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/realtek/realtek_main.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
--- a/drivers/net/phy/realtek/realtek_main.c
+++ b/drivers/net/phy/realtek/realtek_main.c
@@ -901,7 +901,7 @@ static int rtl822x_get_features(struct p
{
int val;
- val = phy_read_paged(phydev, 0xa61, 0x13);
+ val = phy_read_mmd(phydev, MDIO_MMD_VEND2, 0xa616);
if (val < 0)
return val;
@@ -922,10 +922,9 @@ static int rtl822x_config_aneg(struct ph
if (phydev->autoneg == AUTONEG_ENABLE) {
u16 adv = linkmode_adv_to_mii_10gbt_adv_t(phydev->advertising);
- ret = phy_modify_paged_changed(phydev, 0xa5d, 0x12,
- MDIO_AN_10GBT_CTRL_ADV2_5G |
- MDIO_AN_10GBT_CTRL_ADV5G,
- adv);
+ ret = phy_modify_mmd_changed(phydev, MDIO_MMD_VEND2, 0xa5d4,
+ MDIO_AN_10GBT_CTRL_ADV2_5G |
+ MDIO_AN_10GBT_CTRL_ADV5G, adv);
if (ret < 0)
return ret;
}
@@ -969,7 +968,7 @@ static int rtl822x_read_status(struct ph
!phydev->autoneg_complete)
return 0;
- lpadv = phy_read_paged(phydev, 0xa5d, 0x13);
+ lpadv = phy_read_mmd(phydev, MDIO_MMD_VEND2, 0xa5d6);
if (lpadv < 0)
return lpadv;

48
target/linux/generic/backport-6.6/781-31-v6.15-net-phy-realtek-add-helper-RTL822X_VND2_C22_REG.patch Normal file
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@ -0,0 +1,48 @@
From 8af2136e77989a64fae0284bf76fd584e32edd3a Mon Sep 17 00:00:00 2001
From: Heiner Kallweit <hkallweit1@gmail.com>
Date: Fri, 14 Feb 2025 21:31:14 +0100
Subject: [PATCH] net: phy: realtek: add helper RTL822X_VND2_C22_REG
C22 register space is mapped to 0xa400 in MMD VEND2 register space.
Add a helper to access mapped C22 registers.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/6344277b-c5c7-449b-ac89-d5425306ca76@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/realtek/realtek_main.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
--- a/drivers/net/phy/realtek/realtek_main.c
+++ b/drivers/net/phy/realtek/realtek_main.c
@@ -79,9 +79,7 @@
/* RTL822X_VND2_XXXXX registers are only accessible when phydev->is_c45
* is set, they cannot be accessed by C45-over-C22.
*/
-#define RTL822X_VND2_GBCR 0xa412
-
-#define RTL822X_VND2_GANLPAR 0xa414
+#define RTL822X_VND2_C22_REG(reg) (0xa400 + 2 * (reg))
#define RTL8366RB_POWER_SAVE 0x15
#define RTL8366RB_POWER_SAVE_ON BIT(12)
@@ -1015,7 +1013,8 @@ static int rtl822x_c45_config_aneg(struc
val = linkmode_adv_to_mii_ctrl1000_t(phydev->advertising);
/* Vendor register as C45 has no standardized support for 1000BaseT */
- ret = phy_modify_mmd_changed(phydev, MDIO_MMD_VEND2, RTL822X_VND2_GBCR,
+ ret = phy_modify_mmd_changed(phydev, MDIO_MMD_VEND2,
+ RTL822X_VND2_C22_REG(MII_CTRL1000),
ADVERTISE_1000FULL, val);
if (ret < 0)
return ret;
@@ -1032,7 +1031,7 @@ static int rtl822x_c45_read_status(struc
/* Vendor register as C45 has no standardized support for 1000BaseT */
if (phydev->autoneg == AUTONEG_ENABLE && genphy_c45_aneg_done(phydev)) {
val = phy_read_mmd(phydev, MDIO_MMD_VEND2,
- RTL822X_VND2_GANLPAR);
+ RTL822X_VND2_C22_REG(MII_STAT1000));
if (val < 0)
return val;
} else {

113
target/linux/generic/backport-6.6/781-32-v6.15-net-phy-realtek-add-defines-for-shadowed-c45-standar.patch Normal file
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@ -0,0 +1,113 @@
From fabcfd6d10999024a721ae1b965b57eb8a305ace Mon Sep 17 00:00:00 2001
From: Heiner Kallweit <hkallweit1@gmail.com>
Date: Sat, 15 Feb 2025 14:29:15 +0100
Subject: [PATCH] net: phy: realtek: add defines for shadowed c45 standard
registers
Realtek shadows standard c45 registers in VEND2 device register space.
Add defines for these VEND2 registers, based on the names of the
standard c45 registers.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/c90bdf76-f8b8-4d06-9656-7a52d5658ee6@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/realtek/realtek_main.c | 33 +++++++++++++++++---------
1 file changed, 22 insertions(+), 11 deletions(-)
--- a/drivers/net/phy/realtek/realtek_main.c
+++ b/drivers/net/phy/realtek/realtek_main.c
@@ -94,6 +94,16 @@
#define RTL_VND2_PHYSR_MASTER BIT(11)
#define RTL_VND2_PHYSR_SPEED_MASK (RTL_VND2_PHYSR_SPEEDL | RTL_VND2_PHYSR_SPEEDH)
+#define RTL_MDIO_PCS_EEE_ABLE 0xa5c4
+#define RTL_MDIO_AN_EEE_ADV 0xa5d0
+#define RTL_MDIO_AN_EEE_LPABLE 0xa5d2
+#define RTL_MDIO_AN_10GBT_CTRL 0xa5d4
+#define RTL_MDIO_AN_10GBT_STAT 0xa5d6
+#define RTL_MDIO_PMA_SPEED 0xa616
+#define RTL_MDIO_AN_EEE_LPABLE2 0xa6d0
+#define RTL_MDIO_AN_EEE_ADV2 0xa6d4
+#define RTL_MDIO_PCS_EEE_ABLE2 0xa6ec
+
#define RTL_GENERIC_PHYID 0x001cc800
#define RTL_8211FVD_PHYID 0x001cc878
#define RTL_8221B 0x001cc840
@@ -751,11 +761,11 @@ static int rtlgen_read_mmd(struct phy_de
if (devnum == MDIO_MMD_VEND2)
ret = rtlgen_read_vend2(phydev, regnum);
else if (devnum == MDIO_MMD_PCS && regnum == MDIO_PCS_EEE_ABLE)
- ret = rtlgen_read_vend2(phydev, 0xa5c4);
+ ret = rtlgen_read_vend2(phydev, RTL_MDIO_PCS_EEE_ABLE);
else if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_ADV)
- ret = rtlgen_read_vend2(phydev, 0xa5d0);
+ ret = rtlgen_read_vend2(phydev, RTL_MDIO_AN_EEE_ADV);
else if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_LPABLE)
- ret = rtlgen_read_vend2(phydev, 0xa5d2);
+ ret = rtlgen_read_vend2(phydev, RTL_MDIO_AN_EEE_LPABLE);
else
ret = -EOPNOTSUPP;
@@ -770,7 +780,7 @@ static int rtlgen_write_mmd(struct phy_d
if (devnum == MDIO_MMD_VEND2)
ret = rtlgen_write_vend2(phydev, regnum, val);
else if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_ADV)
- ret = rtlgen_write_vend2(phydev, regnum, 0xa5d0);
+ ret = rtlgen_write_vend2(phydev, regnum, RTL_MDIO_AN_EEE_ADV);
else
ret = -EOPNOTSUPP;
@@ -785,11 +795,11 @@ static int rtl822x_read_mmd(struct phy_d
return ret;
if (devnum == MDIO_MMD_PCS && regnum == MDIO_PCS_EEE_ABLE2)
- ret = rtlgen_read_vend2(phydev, 0xa6ec);
+ ret = rtlgen_read_vend2(phydev, RTL_MDIO_PCS_EEE_ABLE2);
else if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_ADV2)
- ret = rtlgen_read_vend2(phydev, 0xa6d4);
+ ret = rtlgen_read_vend2(phydev, RTL_MDIO_AN_EEE_ADV2);
else if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_LPABLE2)
- ret = rtlgen_read_vend2(phydev, 0xa6d0);
+ ret = rtlgen_read_vend2(phydev, RTL_MDIO_AN_EEE_LPABLE2);
return ret;
}
@@ -803,7 +813,7 @@ static int rtl822x_write_mmd(struct phy_
return ret;
if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_ADV2)
- ret = rtlgen_write_vend2(phydev, 0xa6d4, val);
+ ret = rtlgen_write_vend2(phydev, RTL_MDIO_AN_EEE_ADV2, val);
return ret;
}
@@ -899,7 +909,7 @@ static int rtl822x_get_features(struct p
{
int val;
- val = phy_read_mmd(phydev, MDIO_MMD_VEND2, 0xa616);
+ val = phy_read_mmd(phydev, MDIO_MMD_VEND2, RTL_MDIO_PMA_SPEED);
if (val < 0)
return val;
@@ -920,7 +930,8 @@ static int rtl822x_config_aneg(struct ph
if (phydev->autoneg == AUTONEG_ENABLE) {
u16 adv = linkmode_adv_to_mii_10gbt_adv_t(phydev->advertising);
- ret = phy_modify_mmd_changed(phydev, MDIO_MMD_VEND2, 0xa5d4,
+ ret = phy_modify_mmd_changed(phydev, MDIO_MMD_VEND2,
+ RTL_MDIO_AN_10GBT_CTRL,
MDIO_AN_10GBT_CTRL_ADV2_5G |
MDIO_AN_10GBT_CTRL_ADV5G, adv);
if (ret < 0)
@@ -966,7 +977,7 @@ static int rtl822x_read_status(struct ph
!phydev->autoneg_complete)
return 0;
- lpadv = phy_read_mmd(phydev, MDIO_MMD_VEND2, 0xa5d6);
+ lpadv = phy_read_mmd(phydev, MDIO_MMD_VEND2, RTL_MDIO_AN_10GBT_STAT);
if (lpadv < 0)
return lpadv;

54
target/linux/generic/backport-6.6/781-33-v6.15-net-phy-realtek-disable-PHY-mode-EEE.patch Normal file
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@ -0,0 +1,54 @@
From bfc17c1658353f22843c7c13e27c2d31950f1887 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Sun, 16 Mar 2025 12:39:54 +0000
Subject: [PATCH] net: phy: realtek: disable PHY-mode EEE
Realtek RTL8211F has a "PHY-mode" EEE support which interferes with an
IEEE 802.3 compliant implementation. This mode defaults to enabled, and
results in the MAC receive path not seeing the link transition to LPI
state.
Fix this by disabling PHY-mode EEE.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/E1ttnHW-00785s-Uq@rmk-PC.armlinux.org.uk
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
---
drivers/net/phy/realtek/realtek_main.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
--- a/drivers/net/phy/realtek/realtek_main.c
+++ b/drivers/net/phy/realtek/realtek_main.c
@@ -33,6 +33,9 @@
#define RTL8211F_PHYCR1 0x18
#define RTL8211F_PHYCR2 0x19
+#define RTL8211F_CLKOUT_EN BIT(0)
+#define RTL8211F_PHYCR2_PHY_EEE_ENABLE BIT(5)
+
#define RTL8211F_INSR 0x1d
#define RTL8211F_LEDCR 0x10
@@ -55,8 +58,6 @@
#define RTL8211E_TX_DELAY BIT(12)
#define RTL8211E_RX_DELAY BIT(11)
-#define RTL8211F_CLKOUT_EN BIT(0)
-
#define RTL8201F_ISR 0x1e
#define RTL8201F_ISR_ANERR BIT(15)
#define RTL8201F_ISR_DUPLEX BIT(13)
@@ -453,6 +454,12 @@ static int rtl8211f_config_init(struct p
str_enabled_disabled(val_rxdly));
}
+ /* Disable PHY-mode EEE so LPI is passed to the MAC */
+ ret = phy_modify_paged(phydev, 0xa43, RTL8211F_PHYCR2,
+ RTL8211F_PHYCR2_PHY_EEE_ENABLE, 0);
+ if (ret)
+ return ret;
+
if (priv->has_phycr2) {
ret = phy_modify_paged(phydev, 0xa43, RTL8211F_PHYCR2,
RTL8211F_CLKOUT_EN, priv->phycr2);

16
target/linux/generic/pending-6.6/720-01-net-phy-realtek-use-genphy_soft_reset-for-2.5G-PHYs.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
@@ -1430,6 +1430,7 @@ static struct phy_driver realtek_drvs[]
@@ -1434,6 +1434,7 @@ static struct phy_driver realtek_drvs[]
}, {
.name = "RTL8226 2.5Gbps PHY",
.match_phy_device = rtl8226_match_phy_device,
@ -23,7 +23,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
.get_features = rtl822x_get_features,
.config_aneg = rtl822x_config_aneg,
.read_status = rtl822x_read_status,
@@ -1440,6 +1441,7 @@ static struct phy_driver realtek_drvs[]
@@ -1444,6 +1445,7 @@ static struct phy_driver realtek_drvs[]
}, {
.match_phy_device = rtl8221b_match_phy_device,
.name = "RTL8226B_RTL8221B 2.5Gbps PHY",
@ -31,7 +31,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
.get_features = rtl822x_get_features,
.config_aneg = rtl822x_config_aneg,
.config_init = rtl822xb_config_init,
@@ -1452,6 +1454,7 @@ static struct phy_driver realtek_drvs[]
@@ -1456,6 +1458,7 @@ static struct phy_driver realtek_drvs[]
}, {
PHY_ID_MATCH_EXACT(0x001cc838),
.name = "RTL8226-CG 2.5Gbps PHY",
@ -39,7 +39,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
.get_features = rtl822x_get_features,
.config_aneg = rtl822x_config_aneg,
.read_status = rtl822x_read_status,
@@ -1462,6 +1465,7 @@ static struct phy_driver realtek_drvs[]
@@ -1466,6 +1469,7 @@ static struct phy_driver realtek_drvs[]
}, {
PHY_ID_MATCH_EXACT(0x001cc848),
.name = "RTL8226B-CG_RTL8221B-CG 2.5Gbps PHY",
@ -47,7 +47,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
.get_features = rtl822x_get_features,
.config_aneg = rtl822x_config_aneg,
.config_init = rtl822xb_config_init,
@@ -1474,6 +1478,7 @@ static struct phy_driver realtek_drvs[]
@@ -1478,6 +1482,7 @@ static struct phy_driver realtek_drvs[]
}, {
.match_phy_device = rtl8221b_vb_cg_c22_match_phy_device,
.name = "RTL8221B-VB-CG 2.5Gbps PHY (C22)",
@ -55,7 +55,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
.probe = rtl822x_probe,
.get_features = rtl822x_get_features,
.config_aneg = rtl822x_config_aneg,
@@ -1487,6 +1492,7 @@ static struct phy_driver realtek_drvs[]
@@ -1491,6 +1496,7 @@ static struct phy_driver realtek_drvs[]
}, {
.match_phy_device = rtl8221b_vb_cg_c45_match_phy_device,
.name = "RTL8221B-VB-CG 2.5Gbps PHY (C45)",
@ -63,7 +63,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
.probe = rtl822x_probe,
.config_init = rtl822xb_config_init,
.get_rate_matching = rtl822xb_get_rate_matching,
@@ -1498,6 +1504,7 @@ static struct phy_driver realtek_drvs[]
@@ -1502,6 +1508,7 @@ static struct phy_driver realtek_drvs[]
}, {
.match_phy_device = rtl8221b_vn_cg_c22_match_phy_device,
.name = "RTL8221B-VM-CG 2.5Gbps PHY (C22)",
@ -71,7 +71,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
.probe = rtl822x_probe,
.get_features = rtl822x_get_features,
.config_aneg = rtl822x_config_aneg,
@@ -1511,6 +1518,7 @@ static struct phy_driver realtek_drvs[]
@@ -1515,6 +1522,7 @@ static struct phy_driver realtek_drvs[]
}, {
.match_phy_device = rtl8221b_vn_cg_c45_match_phy_device,
.name = "RTL8221B-VN-CG 2.5Gbps PHY (C45)",

4
target/linux/generic/pending-6.6/720-02-net-phy-realtek-disable-SGMII-in-band-AN-for-2-5G-PHYs.patch
View File

@ -20,7 +20,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
--- a/drivers/net/phy/realtek/realtek_main.c
+++ b/drivers/net/phy/realtek/realtek_main.c
@@ -834,8 +834,8 @@ static int rtl822x_probe(struct phy_devi
@@ -837,8 +837,8 @@ static int rtl822x_probe(struct phy_devi
static int rtl822xb_config_init(struct phy_device *phydev)
{
bool has_2500, has_sgmii;
@ -30,7 +30,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
has_2500 = test_bit(PHY_INTERFACE_MODE_2500BASEX,
phydev->host_interfaces) ||
@@ -885,7 +885,29 @@ static int rtl822xb_config_init(struct p
@@ -888,7 +888,29 @@ static int rtl822xb_config_init(struct p
if (ret < 0)
return ret;

2
target/linux/generic/pending-6.6/720-03-net-phy-realtek-make-sure-paged-read-is-protected-by.patch
View File

@ -18,7 +18,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
--- a/drivers/net/phy/realtek/realtek_main.c
+++ b/drivers/net/phy/realtek/realtek_main.c
@@ -1111,9 +1111,11 @@ static bool rtlgen_supports_2_5gbps(stru
@@ -1115,9 +1115,11 @@ static bool rtlgen_supports_2_5gbps(stru
{
int val;

6
target/linux/generic/pending-6.6/720-04-net-phy-realtek-setup-aldps.patch
View File

@ -14,8 +14,8 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
--- a/drivers/net/phy/realtek/realtek_main.c
+++ b/drivers/net/phy/realtek/realtek_main.c
@@ -82,6 +82,10 @@
#define RTL822X_VND2_GANLPAR 0xa414
*/
#define RTL822X_VND2_C22_REG(reg) (0xa400 + 2 * (reg))
+#define RTL8221B_PHYCR1 0xa430
+#define RTL8221B_PHYCR1_ALDPS_EN BIT(2)
@ -24,7 +24,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
#define RTL8366RB_POWER_SAVE 0x15
#define RTL8366RB_POWER_SAVE_ON BIT(12)
@@ -889,6 +893,15 @@ static int rtl822xb_config_init(struct p
@@ -892,6 +896,15 @@ static int rtl822xb_config_init(struct p
if (ret < 0)
return ret;

2
target/linux/generic/pending-6.6/720-05-net-phy-realtek-detect-early-version-of-RTL8221B.patch
View File

@ -14,7 +14,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Mieczyslaw Nalewaj <namiltd@yahoo.com>
--- a/drivers/net/phy/realtek/realtek_main.c
+++ b/drivers/net/phy/realtek/realtek_main.c
@@ -1166,10 +1166,32 @@ static int rtl8226_match_phy_device(stru
@@ -1170,10 +1170,32 @@ static int rtl8226_match_phy_device(stru
static int rtlgen_is_c45_match(struct phy_device *phydev, unsigned int id,
bool is_c45)
{

10
target/linux/generic/pending-6.6/720-06-net-phy-realtek-support-interrupt-of-RTL8221B.patch
View File

@ -12,7 +12,7 @@ Signed-off-by: Jianhui Zhao <zhaojh329@gmail.com>
--- a/drivers/net/phy/realtek/realtek_main.c
+++ b/drivers/net/phy/realtek/realtek_main.c
@@ -1377,6 +1377,51 @@ static irqreturn_t rtl9000a_handle_inter
@@ -1381,6 +1381,51 @@ static irqreturn_t rtl9000a_handle_inter
return IRQ_HANDLED;
}
@ -64,7 +64,7 @@ Signed-off-by: Jianhui Zhao <zhaojh329@gmail.com>
static struct phy_driver realtek_drvs[] = {
{
PHY_ID_MATCH_EXACT(0x00008201),
@@ -1537,6 +1582,8 @@ static struct phy_driver realtek_drvs[]
@@ -1541,6 +1586,8 @@ static struct phy_driver realtek_drvs[]
}, {
.match_phy_device = rtl8221b_vb_cg_c22_match_phy_device,
.name = "RTL8221B-VB-CG 2.5Gbps PHY (C22)",
@ -73,7 +73,7 @@ Signed-off-by: Jianhui Zhao <zhaojh329@gmail.com>
.soft_reset = genphy_soft_reset,
.probe = rtl822x_probe,
.get_features = rtl822x_get_features,
@@ -1551,6 +1598,8 @@ static struct phy_driver realtek_drvs[]
@@ -1555,6 +1602,8 @@ static struct phy_driver realtek_drvs[]
}, {
.match_phy_device = rtl8221b_vb_cg_c45_match_phy_device,
.name = "RTL8221B-VB-CG 2.5Gbps PHY (C45)",
@ -82,7 +82,7 @@ Signed-off-by: Jianhui Zhao <zhaojh329@gmail.com>
.soft_reset = genphy_soft_reset,
.probe = rtl822x_probe,
.config_init = rtl822xb_config_init,
@@ -1563,6 +1612,8 @@ static struct phy_driver realtek_drvs[]
@@ -1567,6 +1616,8 @@ static struct phy_driver realtek_drvs[]
}, {
.match_phy_device = rtl8221b_vn_cg_c22_match_phy_device,
.name = "RTL8221B-VM-CG 2.5Gbps PHY (C22)",
@ -91,7 +91,7 @@ Signed-off-by: Jianhui Zhao <zhaojh329@gmail.com>
.soft_reset = genphy_soft_reset,
.probe = rtl822x_probe,
.get_features = rtl822x_get_features,
@@ -1577,6 +1628,8 @@ static struct phy_driver realtek_drvs[]
@@ -1581,6 +1632,8 @@ static struct phy_driver realtek_drvs[]
}, {
.match_phy_device = rtl8221b_vn_cg_c45_match_phy_device,
.name = "RTL8221B-VN-CG 2.5Gbps PHY (C45)",

2
target/linux/generic/pending-6.6/720-07-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
@@ -1043,6 +1043,9 @@ static int rtl822x_c45_get_features(stru
@@ -1046,6 +1046,9 @@ static int rtl822x_c45_get_features(stru
linkmode_set_bit(ETHTOOL_LINK_MODE_TP_BIT,
phydev->supported);

6
target/linux/generic/pending-6.6/720-08-net-phy-realtek-work-around-broken-serdes.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
@@ -923,6 +923,22 @@ static int rtl822xb_config_init(struct p
@@ -926,6 +926,22 @@ static int rtl822xb_config_init(struct p
return 0;
}
@ -38,7 +38,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
static int rtl822xb_get_rate_matching(struct phy_device *phydev,
phy_interface_t iface)
{
@@ -1605,7 +1621,7 @@ static struct phy_driver realtek_drvs[]
@@ -1609,7 +1625,7 @@ static struct phy_driver realtek_drvs[]
.handle_interrupt = rtl8221b_handle_interrupt,
.soft_reset = genphy_soft_reset,
.probe = rtl822x_probe,
@ -47,7 +47,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
.get_rate_matching = rtl822xb_get_rate_matching,
.get_features = rtl822x_c45_get_features,
.config_aneg = rtl822x_c45_config_aneg,
@@ -1635,7 +1651,7 @@ static struct phy_driver realtek_drvs[]
@@ -1639,7 +1655,7 @@ static struct phy_driver realtek_drvs[]
.handle_interrupt = rtl8221b_handle_interrupt,
.soft_reset = genphy_soft_reset,
.probe = rtl822x_probe,

2
target/linux/generic/pending-6.6/720-09-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
@@ -849,6 +849,11 @@ static int rtl822xb_config_init(struct p
@@ -852,6 +852,11 @@ static int rtl822xb_config_init(struct p
phydev->host_interfaces) ||
phydev->interface == PHY_INTERFACE_MODE_SGMII;