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In mv88e6321 2 ports support serdes functionality; port 0 and port 1. These ports are serdes-only ports. Changes: 1. Add a function support to return the lane address for the port based on cmode. Once that in place, reuse mv88e6352's serdes_get_regs_len and pcs_init functions for mv88e6321. 2. Add mv88e6321_serdes_get_regs function by reusing mv88e6352_serdes_get_regs_from_lane Tested on mv88e6321 switch port 0. Builds were done with allyesconfig and allmodconfig W=1. Co-developed-by: Thomas Eckerman Signed-off-by: Thomas Eckerman Signed-off-by: Fidan Aliyeva --- drivers/net/dsa/mv88e6xxx/chip.c | 4 ++++ drivers/net/dsa/mv88e6xxx/serdes.c | 29 +++++++++++++++++++++++++++++ drivers/net/dsa/mv88e6xxx/serdes.h | 4 ++++ 3 files changed, 37 insertions(+) diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index 15a8028a02a8..c1f7fa21d964 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -5259,10 +5259,14 @@ static const struct mv88e6xxx_ops mv88e6321_ops = { .vtu_loadpurge = mv88e6352_g1_vtu_loadpurge, .stu_getnext = mv88e6352_g1_stu_getnext, .stu_loadpurge = mv88e6352_g1_stu_loadpurge, + .serdes_get_lane = mv88e6321_serdes_get_lane, + .serdes_get_regs_len = mv88e6352_serdes_get_regs_len, + .serdes_get_regs = mv88e6321_serdes_get_regs, .gpio_ops = &mv88e6352_gpio_ops, .avb_ops = &mv88e6352_avb_ops, .ptp_ops = &mv88e6352_ptp_ops, .phylink_get_caps = mv88e632x_phylink_get_caps, + .pcs_ops = &mv88e6352_pcs_ops, }; static const struct mv88e6xxx_ops mv88e6341_ops = { diff --git a/drivers/net/dsa/mv88e6xxx/serdes.c b/drivers/net/dsa/mv88e6xxx/serdes.c index 273c3b169f65..3f8c178cf843 100644 --- a/drivers/net/dsa/mv88e6xxx/serdes.c +++ b/drivers/net/dsa/mv88e6xxx/serdes.c @@ -249,6 +249,35 @@ void mv88e6352_serdes_get_regs(struct mv88e6xxx_chip *chip, int port, void *_p) mv88e6352_serdes_get_regs_from_lane(chip, MV88E6352_ADDR_SERDES, _p); } +int mv88e6321_serdes_get_lane(struct mv88e6xxx_chip *chip, int port) +{ + int lane = -ENODEV; + u8 cmode; + + if (port != 0 && port != 1) + return lane; + + cmode = chip->ports[port].cmode; + + if (cmode == MV88E6XXX_PORT_STS_CMODE_100BASEX || + cmode == MV88E6XXX_PORT_STS_CMODE_1000BASEX || + cmode == MV88E6XXX_PORT_STS_CMODE_SGMII) + lane = port + MV88E6321_PORT0_LANE; + + return lane; +} + +void mv88e6321_serdes_get_regs(struct mv88e6xxx_chip *chip, int port, void *_p) +{ + int lane; + + lane = mv88e6xxx_serdes_get_lane(chip, port); + if (lane < 0) + return; + + mv88e6352_serdes_get_regs_from_lane(chip, lane, _p); +} + int mv88e6341_serdes_get_lane(struct mv88e6xxx_chip *chip, int port) { u8 cmode = chip->ports[port].cmode; diff --git a/drivers/net/dsa/mv88e6xxx/serdes.h b/drivers/net/dsa/mv88e6xxx/serdes.h index 21e050b328cc..c11ea2118efc 100644 --- a/drivers/net/dsa/mv88e6xxx/serdes.h +++ b/drivers/net/dsa/mv88e6xxx/serdes.h @@ -14,6 +14,8 @@ struct phylink_link_state; +#define MV88E6321_PORT0_LANE 0x0c + #define MV88E6352_ADDR_SERDES 0x0f #define MV88E6352_SERDES_PAGE_FIBER 0x01 #define MV88E6352_SERDES_IRQ 0x0b @@ -114,6 +116,7 @@ struct phylink_link_state; int mv88e6xxx_pcs_decode_state(struct device *dev, u16 bmsr, u16 lpa, u16 status, struct phylink_link_state *state); +int mv88e6321_serdes_get_lane(struct mv88e6xxx_chip *chip, int port); int mv88e6341_serdes_get_lane(struct mv88e6xxx_chip *chip, int port); int mv88e6352_serdes_get_lane(struct mv88e6xxx_chip *chip, int port); int mv88e6390_serdes_get_lane(struct mv88e6xxx_chip *chip, int port); @@ -134,6 +137,7 @@ int mv88e6390_serdes_get_strings(struct mv88e6xxx_chip *chip, int port, size_t mv88e6390_serdes_get_stats(struct mv88e6xxx_chip *chip, int port, uint64_t *data); +void mv88e6321_serdes_get_regs(struct mv88e6xxx_chip *chip, int port, void *_p); int mv88e6352_serdes_get_regs_len(struct mv88e6xxx_chip *chip, int port); void mv88e6352_serdes_get_regs(struct mv88e6xxx_chip *chip, int port, void *_p); int mv88e6390_serdes_get_regs_len(struct mv88e6xxx_chip *chip, int port); -- 2.36.0