diff options
| author | Andrew Lunn <andrew@lunn.ch> | 2018-02-22 03:51:49 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-02-22 22:46:32 +0300 |
| commit | 2510babcfaf04d50d69946df31f0e9690c518144 (patch) | |
| tree | 86d64f044a21f905ea5c34ab7ea6a4d7d5a71139 /drivers/net/dsa/mv88e6xxx/global2.h | |
| parent | aa9029479ef3fb88145cad3220e24a110c6ae723 (diff) | |
| download | linux-2510babcfaf04d50d69946df31f0e9690c518144.tar.xz | |
net: dsa: mv88e6xxx: scratch registers and external MDIO pins
MV88E6352 and later switches support GPIO control through the "Scratch
& Misc" global2 register. Two of the pins controlled this way on the
mv88e6390 family are the external MDIO pins. They can either by used
as part of the MII interface for port 0, GPIOs, or MDIO. Add a
function to configure them for MDIO, if possible, and call it when
registering the external MDIO bus.
Suggested-by: Russell King <rmk@armlinux.org.uk>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa/mv88e6xxx/global2.h')
| -rw-r--r-- | drivers/net/dsa/mv88e6xxx/global2.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/global2.h b/drivers/net/dsa/mv88e6xxx/global2.h index 25f92b3d7157..d85c91036c0f 100644 --- a/drivers/net/dsa/mv88e6xxx/global2.h +++ b/drivers/net/dsa/mv88e6xxx/global2.h @@ -266,6 +266,11 @@ #define MV88E6352_G2_SCRATCH_GPIO_PCTL5 0x6D #define MV88E6352_G2_SCRATCH_GPIO_PCTL6 0x6E #define MV88E6352_G2_SCRATCH_GPIO_PCTL7 0x6F +#define MV88E6352_G2_SCRATCH_CONFIG_DATA0 0x70 +#define MV88E6352_G2_SCRATCH_CONFIG_DATA1 0x71 +#define MV88E6352_G2_SCRATCH_CONFIG_DATA1_NO_CPU BIT(2) +#define MV88E6352_G2_SCRATCH_CONFIG_DATA2 0x72 +#define MV88E6352_G2_SCRATCH_CONFIG_DATA2_P0_MODE_MASK 0x3 #define MV88E6352_G2_SCRATCH_GPIO_PCTL_GPIO 0 #define MV88E6352_G2_SCRATCH_GPIO_PCTL_TRIG 1 @@ -325,6 +330,9 @@ extern const struct mv88e6xxx_avb_ops mv88e6390_avb_ops; extern const struct mv88e6xxx_gpio_ops mv88e6352_gpio_ops; +int mv88e6xxx_g2_scratch_gpio_set_smi(struct mv88e6xxx_chip *chip, + bool external); + #else /* !CONFIG_NET_DSA_MV88E6XXX_GLOBAL2 */ static inline int mv88e6xxx_g2_require(struct mv88e6xxx_chip *chip) @@ -465,6 +473,12 @@ static const struct mv88e6xxx_avb_ops mv88e6390_avb_ops = {}; static const struct mv88e6xxx_gpio_ops mv88e6352_gpio_ops = {}; +static inline int mv88e6xxx_g2_scratch_gpio_set_smi(struct mv88e6xxx_chip *chip, + bool external) +{ + return -EOPNOTSUPP; +} + #endif /* CONFIG_NET_DSA_MV88E6XXX_GLOBAL2 */ #endif /* _MV88E6XXX_GLOBAL2_H */ |