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[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>
This commit is contained in:
Michael Chan 2006-03-22 01:06:52 -08:00 committed by David S. Miller
parent caf636c760
commit 15c3b69610
1 changed files with 14 additions and 2 deletions
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16
drivers/net/tg3.c
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@ -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);
}
}