diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/tg3.c | 56 |
1 files changed, 39 insertions, 17 deletions
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index f22f19bbf11..dd036c011c1 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -7542,21 +7542,27 @@ static inline struct subsys_tbl_ent *lookup_by_subsys(struct tg3 *tp) return NULL; } -static int __devinit tg3_phy_probe(struct tg3 *tp) +/* Since this function may be called in D3-hot power state during + * tg3_init_one(), only config cycles are allowed. + */ +static void __devinit tg3_get_eeprom_hw_cfg(struct tg3 *tp) { - u32 eeprom_phy_id, hw_phy_id_1, hw_phy_id_2; - u32 hw_phy_id, hw_phy_id_masked; u32 val; - int eeprom_signature_found, eeprom_phy_serdes, err; + + /* Make sure register accesses (indirect or otherwise) + * will function correctly. + */ + pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL, + tp->misc_host_ctrl); tp->phy_id = PHY_ID_INVALID; - eeprom_phy_id = PHY_ID_INVALID; - eeprom_phy_serdes = 0; - eeprom_signature_found = 0; + tp->led_ctrl = LED_CTRL_MODE_PHY_1; + tg3_read_mem(tp, NIC_SRAM_DATA_SIG, &val); if (val == NIC_SRAM_DATA_SIG_MAGIC) { u32 nic_cfg, led_cfg; - u32 nic_phy_id, ver, cfg2 = 0; + u32 nic_phy_id, ver, cfg2 = 0, eeprom_phy_id; + int eeprom_phy_serdes = 0; tg3_read_mem(tp, NIC_SRAM_DATA_CFG, &nic_cfg); tp->nic_sram_data_cfg = nic_cfg; @@ -7569,8 +7575,6 @@ static int __devinit tg3_phy_probe(struct tg3 *tp) (ver > 0) && (ver < 0x100)) tg3_read_mem(tp, NIC_SRAM_DATA_CFG_2, &cfg2); - eeprom_signature_found = 1; - if ((nic_cfg & NIC_SRAM_DATA_CFG_PHY_TYPE_MASK) == NIC_SRAM_DATA_CFG_PHY_TYPE_FIBER) eeprom_phy_serdes = 1; @@ -7586,6 +7590,10 @@ static int __devinit tg3_phy_probe(struct tg3 *tp) } else eeprom_phy_id = 0; + tp->phy_id = eeprom_phy_id; + if (eeprom_phy_serdes) + tp->tg3_flags2 |= TG3_FLG2_PHY_SERDES; + if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) led_cfg = cfg2 & (NIC_SRAM_DATA_CFG_LED_MODE_MASK | SHASTA_EXT_LED_MODE_MASK); @@ -7653,6 +7661,13 @@ static int __devinit tg3_phy_probe(struct tg3 *tp) if (cfg2 & (1 << 18)) tp->tg3_flags2 |= TG3_FLG2_SERDES_PREEMPHASIS; } +} + +static int __devinit tg3_phy_probe(struct tg3 *tp) +{ + u32 hw_phy_id_1, hw_phy_id_2; + u32 hw_phy_id, hw_phy_id_masked; + int err; /* Reading the PHY ID register can conflict with ASF * firwmare access to the PHY hardware. @@ -7681,10 +7696,10 @@ static int __devinit tg3_phy_probe(struct tg3 *tp) if (hw_phy_id_masked == PHY_ID_BCM8002) tp->tg3_flags2 |= TG3_FLG2_PHY_SERDES; } else { - if (eeprom_signature_found) { - tp->phy_id = eeprom_phy_id; - if (eeprom_phy_serdes) - tp->tg3_flags2 |= TG3_FLG2_PHY_SERDES; + if (tp->phy_id != PHY_ID_INVALID) { + /* Do nothing, phy ID already set up in + * tg3_get_eeprom_hw_cfg(). + */ } else { struct subsys_tbl_ent *p; @@ -7755,9 +7770,6 @@ skip_phy_reset: err = tg3_init_5401phy_dsp(tp); } - if (!eeprom_signature_found) - tp->led_ctrl = LED_CTRL_MODE_PHY_1; - if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) tp->link_config.advertising = (ADVERTISED_1000baseT_Half | @@ -8023,6 +8035,16 @@ static int __devinit tg3_get_invariants(struct tg3 *tp) pci_write_config_dword(tp->pdev, TG3PCI_PCISTATE, pci_state_reg); } + /* Get eeprom hw config before calling tg3_set_power_state(). + * In particular, the TG3_FLAG_EEPROM_WRITE_PROT flag must be + * determined before calling tg3_set_power_state() so that + * we know whether or not to switch out of Vaux power. + * When the flag is set, it means that GPIO1 is used for eeprom + * write protect and also implies that it is a LOM where GPIOs + * are not used to switch power. + */ + tg3_get_eeprom_hw_cfg(tp); + /* Force the chip into D0. */ err = tg3_set_power_state(tp, 0); if (err) { |