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Message-ID: <66d82d3f04623e9c096e12c10ca51141c345ee84.1728438615.git.daniel@makrotopia.org>
Date: Wed, 9 Oct 2024 02:53:03 +0100
From: Daniel Golle <daniel@...rotopia.org>
To: Andrew Lunn <andrew@...n.ch>, Heiner Kallweit <hkallweit1@...il.com>,
Russell King <linux@...linux.org.uk>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH net-next 1/3] 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@...rotopia.org>
---
drivers/net/phy/realtek.c | 48 ++++++++++++++++++++++++++++++++-------
1 file changed, 40 insertions(+), 8 deletions(-)
diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c
index c15d2f66ef0d..717284a71667 100644
--- a/drivers/net/phy/realtek.c
+++ b/drivers/net/phy/realtek.c
@@ -80,15 +80,19 @@
#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_LINK BIT(2)
+#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 +664,24 @@ 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 2
+ * 0: Link not OK
+ * 1: Link OK
+ */
+ phydev->link = !!(val & RTL_VND2_PHYSR_LINK);
+
+ /* 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 +703,19 @@ 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 +733,7 @@ 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 +1039,11 @@ 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;
}
--
2.47.0
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