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Do some cleanup before device startup.

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PR:		kern/197143
Submitted by:	Andriy Voskoboinyk <s3erios@gmail.com>
This commit is contained in:
Adrian Chadd 2015-03-15 21:08:54 +00:00
parent b9858d864a
commit e49a7038fc
1 changed files with 4 additions and 2 deletions
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6
sys/dev/wpi/if_wpi.c
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@ -4881,6 +4881,10 @@ wpi_apm_init(struct wpi_softc *sc)
/* Set FH wait threshold to max (HW bug under stress workaround). */
WPI_SETBITS(sc, WPI_DBG_HPET_MEM, 0xffff0000);
/* Cleanup. */
wpi_prph_write(sc, WPI_APMG_CLK_DIS, 0x00000400);
wpi_prph_clrbits(sc, WPI_APMG_PS, 0x00000E00);
/* Retrieve PCIe Active State Power Management (ASPM). */
reg = pci_read_config(sc->sc_dev, sc->sc_cap_off + 0x10, 1);
/* Workaround for HW instability in PCIe L0->L0s->L1 transition. */
@ -4903,8 +4907,6 @@ wpi_apm_init(struct wpi_softc *sc)
DELAY(20);
/* Disable L1-Active. */
wpi_prph_setbits(sc, WPI_APMG_PCI_STT, WPI_APMG_PCI_STT_L1A_DIS);
/* ??? */
wpi_prph_clrbits(sc, WPI_APMG_PS, 0x00000E00);
wpi_nic_unlock(sc);
return 0;