net: phy: realtek: read duplex and gbit master from PHYSR register
The PHYSR MMD register is present and defined equally for all RTL82xx
Ethernet PHYs.
Read duplex and Gbit master bits from rtlgen_decode_speed() and rename
it to rtlgen_decode_physr().
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Link: https://patch.msgid.link/b9a76341da851a18c985bc4774fa295babec79bb.1728565530.git.daniel@makrotopia.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c
index 166f6a7..9165606 100644
--- a/drivers/net/phy/realtek.c
+++ b/drivers/net/phy/realtek.c
@@ -80,15 +80,18 @@
#define RTL822X_VND2_GANLPAR 0xa414
-#define RTL822X_VND2_PHYSR 0xa434
-
#define RTL8366RB_POWER_SAVE 0x15
#define RTL8366RB_POWER_SAVE_ON BIT(12)
#define RTL9000A_GINMR 0x14
#define RTL9000A_GINMR_LINK_STATUS BIT(4)
-#define RTLGEN_SPEED_MASK 0x0630
+#define RTL_VND2_PHYSR 0xa434
+#define RTL_VND2_PHYSR_DUPLEX BIT(3)
+#define RTL_VND2_PHYSR_SPEEDL GENMASK(5, 4)
+#define RTL_VND2_PHYSR_SPEEDH GENMASK(10, 9)
+#define RTL_VND2_PHYSR_MASTER BIT(11)
+#define RTL_VND2_PHYSR_SPEED_MASK (RTL_VND2_PHYSR_SPEEDL | RTL_VND2_PHYSR_SPEEDH)
#define RTL_GENERIC_PHYID 0x001cc800
#define RTL_8211FVD_PHYID 0x001cc878
@@ -660,9 +663,18 @@ static int rtl8366rb_config_init(struct phy_device *phydev)
}
/* get actual speed to cover the downshift case */
-static void rtlgen_decode_speed(struct phy_device *phydev, int val)
+static void rtlgen_decode_physr(struct phy_device *phydev, int val)
{
- switch (val & RTLGEN_SPEED_MASK) {
+ /* bit 3
+ * 0: Half Duplex
+ * 1: Full Duplex
+ */
+ if (val & RTL_VND2_PHYSR_DUPLEX)
+ phydev->duplex = DUPLEX_FULL;
+ else
+ phydev->duplex = DUPLEX_HALF;
+
+ switch (val & RTL_VND2_PHYSR_SPEED_MASK) {
case 0x0000:
phydev->speed = SPEED_10;
break;
@@ -684,6 +696,19 @@ static void rtlgen_decode_speed(struct phy_device *phydev, int val)
default:
break;
}
+
+ /* bit 11
+ * 0: Slave Mode
+ * 1: Master Mode
+ */
+ if (phydev->speed >= 1000) {
+ if (val & RTL_VND2_PHYSR_MASTER)
+ phydev->master_slave_state = MASTER_SLAVE_STATE_MASTER;
+ else
+ phydev->master_slave_state = MASTER_SLAVE_STATE_SLAVE;
+ } else {
+ phydev->master_slave_state = MASTER_SLAVE_STATE_UNSUPPORTED;
+ }
}
static int rtlgen_read_status(struct phy_device *phydev)
@@ -701,7 +726,7 @@ static int rtlgen_read_status(struct phy_device *phydev)
if (val < 0)
return val;
- rtlgen_decode_speed(phydev, val);
+ rtlgen_decode_physr(phydev, val);
return 0;
}
@@ -1007,11 +1032,11 @@ static int rtl822x_c45_read_status(struct phy_device *phydev)
return 0;
/* Read actual speed from vendor register. */
- val = phy_read_mmd(phydev, MDIO_MMD_VEND2, RTL822X_VND2_PHYSR);
+ val = phy_read_mmd(phydev, MDIO_MMD_VEND2, RTL_VND2_PHYSR);
if (val < 0)
return val;
- rtlgen_decode_speed(phydev, val);
+ rtlgen_decode_physr(phydev, val);
return 0;
}
