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| author | David S. Miller <davem@davemloft.net> | 2008-11-07 01:37:16 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-11-07 01:37:16 -0800 |
| commit | 167c6274c30d17c41742096d1a12c32bd3b7e366 (patch) | |
| tree | b28b98e34dd2b98db6fff8459cddbc65142cd891 /drivers/net/sfc/mdio_10g.c | |
| parent | 5c7f0333584128c745fbda845abbe3a32c22d467 (diff) | |
| parent | a8272061fe533f6d0261b38c58c93bd0855baebe (diff) | |
Merge branch 'davem-next' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6
Diffstat (limited to 'drivers/net/sfc/mdio_10g.c')
| -rw-r--r-- | drivers/net/sfc/mdio_10g.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/net/sfc/mdio_10g.c b/drivers/net/sfc/mdio_10g.c index 003e48dcb2f..19e25210b68 100644 --- a/drivers/net/sfc/mdio_10g.c +++ b/drivers/net/sfc/mdio_10g.c @@ -260,6 +260,41 @@ void mdio_clause45_phy_reconfigure(struct efx_nic *efx) MDIO_MMDREG_CTRL1, ctrl2); } +static void mdio_clause45_set_mmd_lpower(struct efx_nic *efx, + int lpower, int mmd) +{ + int phy = efx->mii.phy_id; + int stat = mdio_clause45_read(efx, phy, mmd, MDIO_MMDREG_STAT1); + int ctrl1, ctrl2; + + EFX_TRACE(efx, "Setting low power mode for MMD %d to %d\n", + mmd, lpower); + + if (stat & (1 << MDIO_MMDREG_STAT1_LPABLE_LBN)) { + ctrl1 = ctrl2 = mdio_clause45_read(efx, phy, + mmd, MDIO_MMDREG_CTRL1); + if (lpower) + ctrl2 |= (1 << MDIO_MMDREG_CTRL1_LPOWER_LBN); + else + ctrl2 &= ~(1 << MDIO_MMDREG_CTRL1_LPOWER_LBN); + if (ctrl1 != ctrl2) + mdio_clause45_write(efx, phy, mmd, + MDIO_MMDREG_CTRL1, ctrl2); + } +} + +void mdio_clause45_set_mmds_lpower(struct efx_nic *efx, + int low_power, unsigned int mmd_mask) +{ + int mmd = 0; + while (mmd_mask) { + if (mmd_mask & 1) + mdio_clause45_set_mmd_lpower(efx, low_power, mmd); + mmd_mask = (mmd_mask >> 1); + mmd++; + } +} + /** * mdio_clause45_get_settings - Read (some of) the PHY settings over MDIO. * @efx: Efx NIC |