diff options
| author | Michael Chan <mchan@broadcom.com> | 2006-03-22 01:06:52 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2006-03-22 01:06:52 -0800 |
| commit | 15c3b696101992c4d69962325f0e91647164427f (patch) | |
| tree | da26359a3cd8899f284cb320b9918b418e0784df /drivers | |
| parent | caf636c760b33c72ebf018ff03c1b0d79ea6656a (diff) | |
| download | kernel_samsung_aries-15c3b696101992c4d69962325f0e91647164427f.zip kernel_samsung_aries-15c3b696101992c4d69962325f0e91647164427f.tar.gz kernel_samsung_aries-15c3b696101992c4d69962325f0e91647164427f.tar.bz2 | |
[TG3]: Skip phy power down on some devices
Some PHYs should not be powered down in tg3_set_power_state() because
of bugs or other hardware limitations.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/tg3.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index cb687fc..f1d9a07 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -1148,6 +1148,19 @@ static int tg3_halt_cpu(struct tg3 *, u32); static int tg3_nvram_lock(struct tg3 *); static void tg3_nvram_unlock(struct tg3 *); +static void tg3_power_down_phy(struct tg3 *tp) +{ + /* The PHY should not be powered down on some chips because + * of bugs. + */ + if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 || + GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 || + (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780 && + (tp->tg3_flags2 & TG3_FLG2_MII_SERDES))) + return; + tg3_writephy(tp, MII_BMCR, BMCR_PDOWN); +} + static int tg3_set_power_state(struct tg3 *tp, pci_power_t state) { u32 misc_host_ctrl; @@ -1327,8 +1340,7 @@ static int tg3_set_power_state(struct tg3 *tp, pci_power_t state) tg3_writephy(tp, MII_TG3_EXT_CTRL, MII_TG3_EXT_CTRL_FORCE_LED_OFF); tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x01b2); - if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700) - tg3_writephy(tp, MII_BMCR, BMCR_PDOWN); + tg3_power_down_phy(tp); } } |