diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/bnx2.c | 96 | ||||
| -rw-r--r-- | drivers/net/bnx2.h | 10 |
2 files changed, 90 insertions, 16 deletions
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c index 18ed8068dc2d..c03f67735bf4 100644 --- a/drivers/net/bnx2.c +++ b/drivers/net/bnx2.c @@ -1186,6 +1186,19 @@ bnx2_disable_forced_2g5(struct bnx2 *bp) bnx2_write_phy(bp, bp->mii_bmcr, bmcr); } +static void +bnx2_5706s_force_link_dn(struct bnx2 *bp, int start) +{ + u32 val; + + bnx2_write_phy(bp, MII_BNX2_DSP_ADDRESS, MII_EXPAND_SERDES_CTL); + bnx2_read_phy(bp, MII_BNX2_DSP_RW_PORT, &val); + if (start) + bnx2_write_phy(bp, MII_BNX2_DSP_RW_PORT, val & 0xff0f); + else + bnx2_write_phy(bp, MII_BNX2_DSP_RW_PORT, val | 0xc0); +} + static int bnx2_set_link(struct bnx2 *bp) { @@ -1211,6 +1224,10 @@ bnx2_set_link(struct bnx2 *bp) (CHIP_NUM(bp) == CHIP_NUM_5706)) { u32 val; + if (bp->phy_flags & PHY_FORCED_DOWN_FLAG) { + bnx2_5706s_force_link_dn(bp, 0); + bp->phy_flags &= ~PHY_FORCED_DOWN_FLAG; + } val = REG_RD(bp, BNX2_EMAC_STATUS); if (val & BNX2_EMAC_STATUS_LINK) bmsr |= BMSR_LSTATUS; @@ -1239,7 +1256,15 @@ bnx2_set_link(struct bnx2 *bp) (bp->autoneg & AUTONEG_SPEED)) bnx2_disable_forced_2g5(bp); - bp->phy_flags &= ~PHY_PARALLEL_DETECT_FLAG; + if (bp->phy_flags & PHY_PARALLEL_DETECT_FLAG) { + u32 bmcr; + + bnx2_read_phy(bp, bp->mii_bmcr, &bmcr); + bmcr |= BMCR_ANENABLE; + bnx2_write_phy(bp, bp->mii_bmcr, bmcr); + + bp->phy_flags &= ~PHY_PARALLEL_DETECT_FLAG; + } bp->link_up = 0; } @@ -5276,13 +5301,51 @@ bnx2_test_intr(struct bnx2 *bp) return -ENODEV; } +static int +bnx2_5706_serdes_has_link(struct bnx2 *bp) +{ + u32 mode_ctl, an_dbg, exp; + + bnx2_write_phy(bp, MII_BNX2_MISC_SHADOW, MISC_SHDW_MODE_CTL); + bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &mode_ctl); + + if (!(mode_ctl & MISC_SHDW_MODE_CTL_SIG_DET)) + return 0; + + bnx2_write_phy(bp, MII_BNX2_MISC_SHADOW, MISC_SHDW_AN_DBG); + bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &an_dbg); + bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &an_dbg); + + if (an_dbg & MISC_SHDW_AN_DBG_NOSYNC) + return 0; + + bnx2_write_phy(bp, MII_BNX2_DSP_ADDRESS, MII_EXPAND_REG1); + bnx2_read_phy(bp, MII_BNX2_DSP_RW_PORT, &exp); + bnx2_read_phy(bp, MII_BNX2_DSP_RW_PORT, &exp); + + if (exp & MII_EXPAND_REG1_RUDI_C) /* receiving CONFIG */ + return 0; + + return 1; +} + static void bnx2_5706_serdes_timer(struct bnx2 *bp) { + int check_link = 1; + spin_lock(&bp->phy_lock); - if (bp->serdes_an_pending) + if (bp->phy_flags & PHY_FORCED_DOWN_FLAG) { + bnx2_5706s_force_link_dn(bp, 0); + bp->phy_flags &= ~PHY_FORCED_DOWN_FLAG; + spin_unlock(&bp->phy_lock); + return; + } + + if (bp->serdes_an_pending) { bp->serdes_an_pending--; - else if ((bp->link_up == 0) && (bp->autoneg & AUTONEG_SPEED)) { + check_link = 0; + } else if ((bp->link_up == 0) && (bp->autoneg & AUTONEG_SPEED)) { u32 bmcr; bp->current_interval = bp->timer_interval; @@ -5290,19 +5353,7 @@ bnx2_5706_serdes_timer(struct bnx2 *bp) bnx2_read_phy(bp, bp->mii_bmcr, &bmcr); if (bmcr & BMCR_ANENABLE) { - u32 phy1, phy2; - - bnx2_write_phy(bp, 0x1c, 0x7c00); - bnx2_read_phy(bp, 0x1c, &phy1); - - bnx2_write_phy(bp, 0x17, 0x0f01); - bnx2_read_phy(bp, 0x15, &phy2); - bnx2_write_phy(bp, 0x17, 0x0f01); - bnx2_read_phy(bp, 0x15, &phy2); - - if ((phy1 & 0x10) && /* SIGNAL DETECT */ - !(phy2 & 0x20)) { /* no CONFIG */ - + if (bnx2_5706_serdes_has_link(bp)) { bmcr &= ~BMCR_ANENABLE; bmcr |= BMCR_SPEED1000 | BMCR_FULLDPLX; bnx2_write_phy(bp, bp->mii_bmcr, bmcr); @@ -5314,6 +5365,7 @@ bnx2_5706_serdes_timer(struct bnx2 *bp) (bp->phy_flags & PHY_PARALLEL_DETECT_FLAG)) { u32 phy2; + check_link = 0; bnx2_write_phy(bp, 0x17, 0x0f01); bnx2_read_phy(bp, 0x15, &phy2); if (phy2 & 0x20) { @@ -5328,6 +5380,18 @@ bnx2_5706_serdes_timer(struct bnx2 *bp) } else bp->current_interval = bp->timer_interval; + if (bp->link_up && (bp->autoneg & AUTONEG_SPEED) && check_link) { + u32 val; + + bnx2_write_phy(bp, MII_BNX2_MISC_SHADOW, MISC_SHDW_AN_DBG); + bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &val); + bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &val); + + if (val & MISC_SHDW_AN_DBG_NOSYNC) { + bnx2_5706s_force_link_dn(bp, 1); + bp->phy_flags |= PHY_FORCED_DOWN_FLAG; + } + } spin_unlock(&bp->phy_lock); } diff --git a/drivers/net/bnx2.h b/drivers/net/bnx2.h index c1ab30b0f87a..31a030a6e2a5 100644 --- a/drivers/net/bnx2.h +++ b/drivers/net/bnx2.h @@ -6344,6 +6344,15 @@ struct l2_fhdr { #define MII_BNX2_DSP_RW_PORT 0x15 #define MII_BNX2_DSP_ADDRESS 0x17 #define MII_BNX2_DSP_EXPAND_REG 0x0f00 +#define MII_EXPAND_REG1 (MII_BNX2_DSP_EXPAND_REG | 1) +#define MII_EXPAND_REG1_RUDI_C 0x20 +#define MII_EXPAND_SERDES_CTL (MII_BNX2_DSP_EXPAND_REG | 2) + +#define MII_BNX2_MISC_SHADOW 0x1c +#define MISC_SHDW_AN_DBG 0x6800 +#define MISC_SHDW_AN_DBG_NOSYNC 0x0002 +#define MISC_SHDW_MODE_CTL 0x7c00 +#define MISC_SHDW_MODE_CTL_SIG_DET 0x0010 #define MII_BNX2_BLK_ADDR 0x1f #define MII_BNX2_BLK_ADDR_IEEE0 0x0000 @@ -6643,6 +6652,7 @@ struct bnx2 { #define PHY_INT_MODE_LINK_READY_FLAG 0x200 #define PHY_DIS_EARLY_DAC_FLAG 0x400 #define REMOTE_PHY_CAP_FLAG 0x800 +#define PHY_FORCED_DOWN_FLAG 0x1000 u32 mii_bmcr; u32 mii_bmsr; |