d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Always disable ASPM L0s and enable L1 before entering into WOL

Browse Source 
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.
This commit is contained in:
Pyun YongHyeon 2010-08-08 00:12:31 +00:00
parent dfab2088e8
commit 47ae892c85
1 changed files with 10 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
sys/dev/alc/if_alc.c
View File

@ -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);