Author: yongari Date: Sun Aug 8 00:12:31 2010 New Revision: 211051 URL: http://svn.freebsd.org/changeset/base/211051
Log: Always disable ASPM L0s and enable L1 before entering into WOL suspend state. Also disable master clock after PHY power down, this is supposed to save more power. The master clock should be enabled if WOL is active. Modified: head/sys/dev/alc/if_alc.c Modified: head/sys/dev/alc/if_alc.c ============================================================================== --- head/sys/dev/alc/if_alc.c Sun Aug 8 00:09:22 2010 (r211050) +++ head/sys/dev/alc/if_alc.c Sun Aug 8 00:12:31 2010 (r211051) @@ -1673,19 +1673,14 @@ static void alc_setwol(struct alc_softc *sc) { struct ifnet *ifp; - uint32_t cap, reg, pmcs; + uint32_t reg, pmcs; uint16_t pmstat; - int base, pmc; + int pmc; ALC_LOCK_ASSERT(sc); - if (pci_find_extcap(sc->alc_dev, PCIY_EXPRESS, &base) == 0) { - cap = CSR_READ_2(sc, base + PCIR_EXPRESS_LINK_CAP); - if ((cap & PCIM_LINK_CAP_ASPM) != 0) { - cap = CSR_READ_2(sc, base + PCIR_EXPRESS_LINK_CTL); - alc_disable_l0s_l1(sc); - } - } + alc_disable_l0s_l1(sc); + ifp = sc->alc_ifp; if (pci_find_extcap(sc->alc_dev, PCIY_PMG, &pmc) != 0) { /* Disable WOL. */ CSR_WRITE_4(sc, ALC_WOL_CFG, 0); @@ -1694,6 +1689,8 @@ alc_setwol(struct alc_softc *sc) CSR_WRITE_4(sc, ALC_PCIE_PHYMISC, reg); /* Force PHY power down. */ alc_phy_down(sc); + CSR_WRITE_4(sc, ALC_MASTER_CFG, + CSR_READ_4(sc, ALC_MASTER_CFG) | MASTER_CLK_SEL_DIS); return; } @@ -1701,9 +1698,8 @@ alc_setwol(struct alc_softc *sc) if ((ifp->if_capenable & IFCAP_WOL) != 0) { if ((sc->alc_flags & ALC_FLAG_FASTETHER) == 0) alc_setlinkspeed(sc); - reg = CSR_READ_4(sc, ALC_MASTER_CFG); - reg &= ~MASTER_CLK_SEL_DIS; - CSR_WRITE_4(sc, ALC_MASTER_CFG, reg); + CSR_WRITE_4(sc, ALC_MASTER_CFG, + CSR_READ_4(sc, ALC_MASTER_CFG) & ~MASTER_CLK_SEL_DIS); } pmcs = 0; @@ -1725,6 +1721,8 @@ alc_setwol(struct alc_softc *sc) if ((ifp->if_capenable & IFCAP_WOL) == 0) { /* WOL disabled, PHY power down. */ alc_phy_down(sc); + CSR_WRITE_4(sc, ALC_MASTER_CFG, + CSR_READ_4(sc, ALC_MASTER_CFG) | MASTER_CLK_SEL_DIS); } /* Request PME. */ pmstat = pci_read_config(sc->alc_dev, pmc + PCIR_POWER_STATUS, 2); _______________________________________________ svn-src-head@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"