diff options
| -rw-r--r-- | drivers/net/sungem_phy.c | 389 | ||||
| -rw-r--r-- | drivers/net/sungem_phy.h | 10 |
2 files changed, 263 insertions, 136 deletions
diff --git a/drivers/net/sungem_phy.c b/drivers/net/sungem_phy.c index 701ba4f..56a110c 100644 --- a/drivers/net/sungem_phy.c +++ b/drivers/net/sungem_phy.c @@ -310,6 +310,107 @@ static int bcm5411_init(struct mii_phy* phy) return 0; } +static int genmii_setup_aneg(struct mii_phy *phy, u32 advertise) +{ + u16 ctl, adv; + + phy->autoneg = 1; + phy->speed = SPEED_10; + phy->duplex = DUPLEX_HALF; + phy->pause = 0; + phy->advertising = advertise; + + /* Setup standard advertise */ + adv = phy_read(phy, MII_ADVERTISE); + adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4); + if (advertise & ADVERTISED_10baseT_Half) + adv |= ADVERTISE_10HALF; + if (advertise & ADVERTISED_10baseT_Full) + adv |= ADVERTISE_10FULL; + if (advertise & ADVERTISED_100baseT_Half) + adv |= ADVERTISE_100HALF; + if (advertise & ADVERTISED_100baseT_Full) + adv |= ADVERTISE_100FULL; + phy_write(phy, MII_ADVERTISE, adv); + + /* Start/Restart aneg */ + ctl = phy_read(phy, MII_BMCR); + ctl |= (BMCR_ANENABLE | BMCR_ANRESTART); + phy_write(phy, MII_BMCR, ctl); + + return 0; +} + +static int genmii_setup_forced(struct mii_phy *phy, int speed, int fd) +{ + u16 ctl; + + phy->autoneg = 0; + phy->speed = speed; + phy->duplex = fd; + phy->pause = 0; + + ctl = phy_read(phy, MII_BMCR); + ctl &= ~(BMCR_FULLDPLX|BMCR_SPEED100|BMCR_ANENABLE); + + /* First reset the PHY */ + phy_write(phy, MII_BMCR, ctl | BMCR_RESET); + + /* Select speed & duplex */ + switch(speed) { + case SPEED_10: + break; + case SPEED_100: + ctl |= BMCR_SPEED100; + break; + case SPEED_1000: + default: + return -EINVAL; + } + if (fd == DUPLEX_FULL) + ctl |= BMCR_FULLDPLX; + phy_write(phy, MII_BMCR, ctl); + + return 0; +} + +static int genmii_poll_link(struct mii_phy *phy) +{ + u16 status; + + (void)phy_read(phy, MII_BMSR); + status = phy_read(phy, MII_BMSR); + if ((status & BMSR_LSTATUS) == 0) + return 0; + if (phy->autoneg && !(status & BMSR_ANEGCOMPLETE)) + return 0; + return 1; +} + +static int genmii_read_link(struct mii_phy *phy) +{ + u16 lpa; + + if (phy->autoneg) { + lpa = phy_read(phy, MII_LPA); + + if (lpa & (LPA_10FULL | LPA_100FULL)) + phy->duplex = DUPLEX_FULL; + else + phy->duplex = DUPLEX_HALF; + if (lpa & (LPA_100FULL | LPA_100HALF)) + phy->speed = SPEED_100; + else + phy->speed = SPEED_10; + phy->pause = 0; + } + /* On non-aneg, we assume what we put in BMCR is the speed, + * though magic-aneg shouldn't prevent this case from occurring + */ + + return 0; +} + static int generic_suspend(struct mii_phy* phy) { phy_write(phy, MII_BMCR, BMCR_PDOWN); @@ -364,30 +465,6 @@ static int bcm5421_init(struct mii_phy* phy) return 0; } -static int bcm5421_enable_fiber(struct mii_phy* phy) -{ - /* enable fiber mode */ - phy_write(phy, MII_NCONFIG, 0x9020); - /* LEDs active in both modes, autosense prio = fiber */ - phy_write(phy, MII_NCONFIG, 0x945f); - - /* switch off fibre autoneg */ - phy_write(phy, MII_NCONFIG, 0xfc01); - phy_write(phy, 0x0b, 0x0004); - - return 0; -} - -static int bcm5461_enable_fiber(struct mii_phy* phy) -{ - phy_write(phy, MII_NCONFIG, 0xfc0c); - phy_write(phy, MII_BMCR, 0x4140); - phy_write(phy, MII_NCONFIG, 0xfc0b); - phy_write(phy, MII_BMCR, 0x0140); - - return 0; -} - static int bcm54xx_setup_aneg(struct mii_phy *phy, u32 advertise) { u16 ctl, adv; @@ -515,6 +592,155 @@ static int marvell88e1111_init(struct mii_phy* phy) return 0; } +#define BCM5421_MODE_MASK (1 << 5) + +static int bcm5421_poll_link(struct mii_phy* phy) +{ + u32 phy_reg; + int mode; + + /* find out in what mode we are */ + phy_write(phy, MII_NCONFIG, 0x1000); + phy_reg = phy_read(phy, MII_NCONFIG); + + mode = (phy_reg & BCM5421_MODE_MASK) >> 5; + + if ( mode == BCM54XX_COPPER) + return genmii_poll_link(phy); + + /* try to find out wether we have a link */ + phy_write(phy, MII_NCONFIG, 0x2000); + phy_reg = phy_read(phy, MII_NCONFIG); + + if (phy_reg & 0x0020) + return 0; + else + return 1; +} + +static int bcm5421_read_link(struct mii_phy* phy) +{ + u32 phy_reg; + int mode; + + /* find out in what mode we are */ + phy_write(phy, MII_NCONFIG, 0x1000); + phy_reg = phy_read(phy, MII_NCONFIG); + + mode = (phy_reg & BCM5421_MODE_MASK ) >> 5; + + if ( mode == BCM54XX_COPPER) + return bcm54xx_read_link(phy); + + phy->speed = SPEED_1000; + + /* find out wether we are running half- or full duplex */ + phy_write(phy, MII_NCONFIG, 0x2000); + phy_reg = phy_read(phy, MII_NCONFIG); + + if ( (phy_reg & 0x0080) >> 7) + phy->duplex |= DUPLEX_HALF; + else + phy->duplex |= DUPLEX_FULL; + + return 0; +} + +static int bcm5421_enable_fiber(struct mii_phy* phy, int autoneg) +{ + /* enable fiber mode */ + phy_write(phy, MII_NCONFIG, 0x9020); + /* LEDs active in both modes, autosense prio = fiber */ + phy_write(phy, MII_NCONFIG, 0x945f); + + if (!autoneg) { + /* switch off fibre autoneg */ + phy_write(phy, MII_NCONFIG, 0xfc01); + phy_write(phy, 0x0b, 0x0004); + } + + phy->autoneg = autoneg; + + return 0; +} + +#define BCM5461_FIBER_LINK (1 << 2) +#define BCM5461_MODE_MASK (3 << 1) + +static int bcm5461_poll_link(struct mii_phy* phy) +{ + u32 phy_reg; + int mode; + + /* find out in what mode we are */ + phy_write(phy, MII_NCONFIG, 0x7c00); + phy_reg = phy_read(phy, MII_NCONFIG); + + mode = (phy_reg & BCM5461_MODE_MASK ) >> 1; + + if ( mode == BCM54XX_COPPER) + return genmii_poll_link(phy); + + /* find out wether we have a link */ + phy_write(phy, MII_NCONFIG, 0x7000); + phy_reg = phy_read(phy, MII_NCONFIG); + + if (phy_reg & BCM5461_FIBER_LINK) + return 1; + else + return 0; +} + +#define BCM5461_FIBER_DUPLEX (1 << 3) + +static int bcm5461_read_link(struct mii_phy* phy) +{ + u32 phy_reg; + int mode; + + /* find out in what mode we are */ + phy_write(phy, MII_NCONFIG, 0x7c00); + phy_reg = phy_read(phy, MII_NCONFIG); + + mode = (phy_reg & BCM5461_MODE_MASK ) >> 1; + + if ( mode == BCM54XX_COPPER) { + return bcm54xx_read_link(phy); + } + + phy->speed = SPEED_1000; + + /* find out wether we are running half- or full duplex */ + phy_write(phy, MII_NCONFIG, 0x7000); + phy_reg = phy_read(phy, MII_NCONFIG); + + if (phy_reg & BCM5461_FIBER_DUPLEX) + phy->duplex |= DUPLEX_FULL; + else + phy->duplex |= DUPLEX_HALF; + + return 0; +} + +static int bcm5461_enable_fiber(struct mii_phy* phy, int autoneg) +{ + /* select fiber mode, enable 1000 base-X registers */ + phy_write(phy, MII_NCONFIG, 0xfc0b); + + if (autoneg) { + /* enable fiber with no autonegotiation */ + phy_write(phy, MII_ADVERTISE, 0x01e0); + phy_write(phy, MII_BMCR, 0x1140); + } else { + /* enable fiber with autonegotiation */ + phy_write(phy, MII_BMCR, 0x0140); + } + + phy->autoneg = autoneg; + + return 0; +} + static int marvell_setup_aneg(struct mii_phy *phy, u32 advertise) { u16 ctl, adv; @@ -645,113 +871,6 @@ static int marvell_read_link(struct mii_phy *phy) return 0; } -static int genmii_setup_aneg(struct mii_phy *phy, u32 advertise) -{ - u16 ctl, adv; - - phy->autoneg = 1; - phy->speed = SPEED_10; - phy->duplex = DUPLEX_HALF; - phy->pause = 0; - phy->advertising = advertise; - - /* Setup standard advertise */ - adv = phy_read(phy, MII_ADVERTISE); - adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4); - if (advertise & ADVERTISED_10baseT_Half) - adv |= ADVERTISE_10HALF; - if (advertise & ADVERTISED_10baseT_Full) - adv |= ADVERTISE_10FULL; - if (advertise & ADVERTISED_100baseT_Half) - adv |= ADVERTISE_100HALF; - if (advertise & ADVERTISED_100baseT_Full) - adv |= ADVERTISE_100FULL; - if (advertise & ADVERTISED_Pause) - adv |= ADVERTISE_PAUSE_CAP; - if (advertise & ADVERTISED_Asym_Pause) - adv |= ADVERTISE_PAUSE_ASYM; - phy_write(phy, MII_ADVERTISE, adv); - - /* Start/Restart aneg */ - ctl = phy_read(phy, MII_BMCR); - ctl |= (BMCR_ANENABLE | BMCR_ANRESTART); - phy_write(phy, MII_BMCR, ctl); - - return 0; -} - -static int genmii_setup_forced(struct mii_phy *phy, int speed, int fd) -{ - u16 ctl; - - phy->autoneg = 0; - phy->speed = speed; - phy->duplex = fd; - phy->pause = 0; - - ctl = phy_read(phy, MII_BMCR); - ctl &= ~(BMCR_FULLDPLX|BMCR_SPEED100|BMCR_ANENABLE); - - /* First reset the PHY */ - phy_write(phy, MII_BMCR, ctl | BMCR_RESET); - - /* Select speed & duplex */ - switch(speed) { - case SPEED_10: - break; - case SPEED_100: - ctl |= BMCR_SPEED100; - break; - case SPEED_1000: - default: - return -EINVAL; - } - if (fd == DUPLEX_FULL) - ctl |= BMCR_FULLDPLX; - phy_write(phy, MII_BMCR, ctl); - - return 0; -} - -static int genmii_poll_link(struct mii_phy *phy) -{ - u16 status; - - (void)phy_read(phy, MII_BMSR); - status = phy_read(phy, MII_BMSR); - if ((status & BMSR_LSTATUS) == 0) - return 0; - if (phy->autoneg && !(status & BMSR_ANEGCOMPLETE)) - return 0; - return 1; -} - -static int genmii_read_link(struct mii_phy *phy) -{ - u16 lpa; - - if (phy->autoneg) { - lpa = phy_read(phy, MII_LPA); - - if (lpa & (LPA_10FULL | LPA_100FULL)) - phy->duplex = DUPLEX_FULL; - else - phy->duplex = DUPLEX_HALF; - if (lpa & (LPA_100FULL | LPA_100HALF)) - phy->speed = SPEED_100; - else - phy->speed = SPEED_10; - phy->pause = (phy->duplex == DUPLEX_FULL) && - ((lpa & LPA_PAUSE) != 0); - } - /* On non-aneg, we assume what we put in BMCR is the speed, - * though magic-aneg shouldn't prevent this case from occurring - */ - - return 0; -} - - #define MII_BASIC_FEATURES \ (SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | \ SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | \ @@ -885,8 +1004,8 @@ static struct mii_phy_ops bcm5421_phy_ops = { .suspend = generic_suspend, .setup_aneg = bcm54xx_setup_aneg, .setup_forced = bcm54xx_setup_forced, - .poll_link = genmii_poll_link, - .read_link = bcm54xx_read_link, + .poll_link = bcm5421_poll_link, + .read_link = bcm5421_read_link, .enable_fiber = bcm5421_enable_fiber, }; @@ -923,8 +1042,8 @@ static struct mii_phy_ops bcm5461_phy_ops = { .suspend = generic_suspend, .setup_aneg = bcm54xx_setup_aneg, .setup_forced = bcm54xx_setup_forced, - .poll_link = genmii_poll_link, - .read_link = bcm54xx_read_link, + .poll_link = bcm5461_poll_link, + .read_link = bcm5461_read_link, .enable_fiber = bcm5461_enable_fiber, }; diff --git a/drivers/net/sungem_phy.h b/drivers/net/sungem_phy.h index 1d70ba6..af02f94 100644 --- a/drivers/net/sungem_phy.h +++ b/drivers/net/sungem_phy.h @@ -12,7 +12,7 @@ struct mii_phy_ops int (*setup_forced)(struct mii_phy *phy, int speed, int fd); int (*poll_link)(struct mii_phy *phy); int (*read_link)(struct mii_phy *phy); - int (*enable_fiber)(struct mii_phy *phy); + int (*enable_fiber)(struct mii_phy *phy, int autoneg); }; /* Structure used to statically define an mii/gii based PHY */ @@ -26,6 +26,14 @@ struct mii_phy_def const struct mii_phy_ops* ops; }; +enum { + BCM54XX_COPPER, + BCM54XX_FIBER, + BCM54XX_GBIC, + BCM54XX_SGMII, + BCM54XX_UNKNOWN, +}; + /* An instance of a PHY, partially borrowed from mii_if_info */ struct mii_phy { |