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realtek: 6.12: proper mdio c45 handling in DSA driver

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As the mdio bus has been hardened and can now handle c45 requests
the DSA driver must honor that as well. For this

- add proper upstreamed bus read_c45 and write_c45 functions
- take over the disabled port mask from upstream bus

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Link: https://github.com/openwrt/openwrt/pull/18935
Signed-off-by: Robert Marko <robimarko@gmail.com>
This commit is contained in:
Markus Stockhausen
2025-06-03 10:46:00 -04:00
committed by Robert Marko
parent 65cf5b74c5
commit 30fae30e03
1 changed files with 21 additions and 4 deletions
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25
target/linux/realtek/files-6.12/drivers/net/dsa/rtl83xx/common.c
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@ -272,20 +272,34 @@ int write_phy(u32 port, u32 page, u32 reg, u32 val)
return -1;
}
static int rtldsa_mdio_read(struct mii_bus *bus, int addr, int regnum)
static int rtldsa_bus_read(struct mii_bus *bus, int addr, int regnum)
{
struct rtl838x_switch_priv *priv = bus->priv;
return mdiobus_read_nested(priv->parent_bus, addr, regnum);
}
static int rtldsa_mdio_write(struct mii_bus *bus, int addr, int regnum, u16 val)
static int rtldsa_bus_write(struct mii_bus *bus, int addr, int regnum, u16 val)
{
struct rtl838x_switch_priv *priv = bus->priv;
return mdiobus_write_nested(priv->parent_bus, addr, regnum, val);
}
static int rtldsa_bus_c45_read(struct mii_bus *bus, int addr, int devad, int regnum)
{
struct rtl838x_switch_priv *priv = bus->priv;
return mdiobus_c45_read_nested(priv->parent_bus, addr, devad, regnum);
}
static int rtldsa_bus_c45_write(struct mii_bus *bus, int addr, int devad, int regnum, u16 val)
{
struct rtl838x_switch_priv *priv = bus->priv;
return mdiobus_c45_write_nested(priv->parent_bus, addr, devad, regnum, val);
}
static int __init rtl83xx_mdio_probe(struct rtl838x_switch_priv *priv)
{
struct device *dev = priv->dev;
@ -316,8 +330,11 @@ static int __init rtl83xx_mdio_probe(struct rtl838x_switch_priv *priv)
return -ENOMEM;
bus->name = "rtldsa_mdio";
bus->read = rtldsa_mdio_read;
bus->write = rtldsa_mdio_write;
bus->read = rtldsa_bus_read;
bus->write = rtldsa_bus_write;
bus->read_c45 = rtldsa_bus_c45_read;
bus->write_c45 = rtldsa_bus_c45_write;
bus->phy_mask = priv->parent_bus->phy_mask;
snprintf(bus->id, MII_BUS_ID_SIZE, "%s-%d", bus->name, dev->id);
bus->parent = dev;