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authorRomain Perier <romain.perier@free-electrons.com>2017-01-30 20:29:33 +0100
committerDavid S. Miller <davem@davemloft.net>2017-01-30 16:50:56 -0500
commit891daf49b0f6e900af6bde51e2dc2cbc72b83f4e (patch)
treec3ece580aad9d789166579fe7cafacc9f4199d4f /drivers/net/dsa
parentcdaf25dfc058ee6f7a7b2e2353de00fa288c0cd4 (diff)
net: dsa: mv88e6xxx: Don't forbid MDIO I/Os for PHY addr >= num_of_ports
Some Marvell ethernet switches have internal ethernet transceivers with hardcoded phy addresses. These addresses can be greater than the number of ports or its value might be different than the associated port number. This is for example the case for MV88E6341 that has 6 ports and internal Port 1 to Port4 PHYs mapped at SMI addresses from 0x11 to 0x14. This commits fixes the issue by removing the condition in MDIO callbacks. Signed-off-by: Romain Perier <romain.perier@free-electrons.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa')
-rw-r--r--drivers/net/dsa/mv88e6xxx/chip.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 84cba32443de..1344dad21f46 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -2917,9 +2917,6 @@ static int mv88e6xxx_mdio_read(struct mii_bus *bus, int phy, int reg)
u16 val;
int err;
- if (phy >= mv88e6xxx_num_ports(chip))
- return 0xffff;
-
if (!chip->info->ops->phy_read)
return -EOPNOTSUPP;
@@ -2936,9 +2933,6 @@ static int mv88e6xxx_mdio_write(struct mii_bus *bus, int phy, int reg, u16 val)
struct mv88e6xxx_chip *chip = mdio_bus->chip;
int err;
- if (phy >= mv88e6xxx_num_ports(chip))
- return 0xffff;
-
if (!chip->info->ops->phy_write)
return -EOPNOTSUPP;