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[TG3]: CPMU adjustments for loopback tests 

This patch adds the LINK_SPEED mode to the list of CPMU modes that can
cause the loopback tests to fail.  These bugs are planned to be fixed in
future revisions of the chip, so the patch qualifies the fixes as such.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Matt Carlson 2007-11-12 21:11:51 -08:00 committed by David S. Miller
parent a5767dec19
commit e875093c96
1 changed files with 7 additions and 5 deletions
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12
drivers/net/tg3.c
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@ -9354,7 +9354,8 @@ static int tg3_test_loopback(struct tg3 *tp)
if (err)
return TG3_LOOPBACK_FAILED;
if (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) {
if (tp->pci_chip_rev_id == CHIPREV_ID_5784_A0 ||
tp->pci_chip_rev_id == CHIPREV_ID_5761_A0) {
int i;
u32 status;
@ -9371,17 +9372,18 @@ static int tg3_test_loopback(struct tg3 *tp)
if (status != CPMU_MUTEX_GNT_DRIVER)
return TG3_LOOPBACK_FAILED;
cpmuctrl = tr32(TG3_CPMU_CTRL);
/* Turn off power management based on link speed. */
cpmuctrl = tr32(TG3_CPMU_CTRL);
tw32(TG3_CPMU_CTRL,
cpmuctrl & ~CPMU_CTRL_LINK_SPEED_MODE);
cpmuctrl & ~(CPMU_CTRL_LINK_SPEED_MODE |
CPMU_CTRL_LINK_AWARE_MODE));
}
if (tg3_run_loopback(tp, TG3_MAC_LOOPBACK))
err |= TG3_MAC_LOOPBACK_FAILED;
if (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) {
if (tp->pci_chip_rev_id == CHIPREV_ID_5784_A0 ||
tp->pci_chip_rev_id == CHIPREV_ID_5761_A0) {
tw32(TG3_CPMU_CTRL, cpmuctrl);
/* Release the mutex */