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domenico
2025-06-24 12:51:15 +02:00
commit 27c9d80f51
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84
target/linux/generic/pending-5.15/729-net-phy-realtek-introduce-rtl822x_probe.patch Normal file
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@@ -0,0 +1,84 @@
From 9155098547fb1172d4fa536f3f6bc9d42f59d08c Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Sat, 22 Apr 2023 03:26:01 +0100
Subject: [PATCH] net: phy: realtek: setup ALDPS on RTL822x
Setup Link Down Power Saving Mode according the DTS property
just like for RTL821x 1GE PHYs.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
drivers/net/phy/realtek.c | 11 +++++++++++
1 file changed, 11 insertions(+)
--- a/drivers/net/phy/realtek.c
+++ b/drivers/net/phy/realtek.c
@@ -62,6 +62,10 @@
#define RTL8221B_SERDES_OPTION_MODE_2500BASEX 2
#define RTL8221B_SERDES_OPTION_MODE_HISGMII 3
+#define RTL8221B_PHYCR1 0xa430
+#define RTL8221B_PHYCR1_ALDPS_EN BIT(2)
+#define RTL8221B_PHYCR1_ALDPS_XTAL_OFF_EN BIT(12)
+
#define RTL8366RB_POWER_SAVE 0x15
#define RTL8366RB_POWER_SAVE_ON BIT(12)
@@ -740,6 +744,25 @@ static int rtl8226_match_phy_device(stru
rtlgen_supports_2_5gbps(phydev);
}
+static int rtl822x_probe(struct phy_device *phydev)
+{
+ struct device *dev = &phydev->mdio.dev;
+ int val;
+
+ val = phy_read_mmd(phydev, RTL8221B_MMD_SERDES_CTRL, RTL8221B_PHYCR1);
+ if (val < 0)
+ return val;
+
+ if (of_property_read_bool(dev->of_node, "realtek,aldps-enable"))
+ val |= RTL8221B_PHYCR1_ALDPS_EN | RTL8221B_PHYCR1_ALDPS_XTAL_OFF_EN;
+ else
+ val &= ~(RTL8221B_PHYCR1_ALDPS_EN | RTL8221B_PHYCR1_ALDPS_XTAL_OFF_EN);
+
+ phy_write_mmd(phydev, RTL8221B_MMD_SERDES_CTRL, RTL8221B_PHYCR1, val);
+
+ return 0;
+}
+
static int rtlgen_resume(struct phy_device *phydev)
{
int ret = genphy_resume(phydev);
@@ -1039,6 +1062,7 @@ static struct phy_driver realtek_drvs[]
.name = "RTL8226-CG 2.5Gbps PHY",
.get_features = rtl822x_get_features,
.config_aneg = rtl822x_config_aneg,
+ .probe = rtl822x_probe,
.read_status = rtl822x_read_status,
.suspend = genphy_suspend,
.resume = rtlgen_resume,
@@ -1050,6 +1074,7 @@ static struct phy_driver realtek_drvs[]
.name = "RTL8226B-CG_RTL8221B-CG 2.5Gbps PHY",
.get_features = rtl822x_get_features,
.config_aneg = rtl822x_config_aneg,
+ .probe = rtl822x_probe,
.read_status = rtl822x_read_status,
.suspend = genphy_suspend,
.resume = rtlgen_resume,
@@ -1062,6 +1087,7 @@ static struct phy_driver realtek_drvs[]
.get_features = rtl822x_get_features,
.config_init = rtl8221b_config_init,
.config_aneg = rtl822x_config_aneg,
+ .probe = rtl822x_probe,
.read_status = rtl822x_read_status,
.suspend = genphy_suspend,
.resume = rtlgen_resume,
@@ -1074,6 +1100,7 @@ static struct phy_driver realtek_drvs[]
.get_features = rtl822x_get_features,
.config_aneg = rtl822x_config_aneg,
.config_init = rtl8221b_config_init,
+ .probe = rtl822x_probe,
.read_status = rtl822x_read_status,
.suspend = genphy_suspend,
.resume = rtlgen_resume,