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| author | Joakim Tjernlund <Joakim.Tjernlund@transmode.se> | 2010-08-10 16:36:49 +0200 |
|---|---|---|
| committer | Ben Warren <biggerbadderben@gmail.com> | 2010-10-11 22:47:48 -0700 |
| commit | f29c181cd4a8bd39c256ac8cabb98055a9e672f3 (patch) | |
| tree | 14148119f62d911e59bb7b09db8f3610e9d07652 /drivers/qe/uec_phy.c | |
| parent | 68e1ede88a5d6a43beb425d8aa4ac97b850b5720 (diff) | |
| download | u-boot-imx-f29c181cd4a8bd39c256ac8cabb98055a9e672f3.zip u-boot-imx-f29c181cd4a8bd39c256ac8cabb98055a9e672f3.tar.gz u-boot-imx-f29c181cd4a8bd39c256ac8cabb98055a9e672f3.tar.bz2 | |
UEC PHY: Speed up initial PHY neg.
Instead of always performing an autoneg, check if the PHY
already has a link and if it matches one of the requested
modes. Initially only 100MbFD is optimized this way.
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
Diffstat (limited to 'drivers/qe/uec_phy.c')
| -rw-r--r-- | drivers/qe/uec_phy.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/qe/uec_phy.c b/drivers/qe/uec_phy.c index 7ea2ae1..9be784e 100644 --- a/drivers/qe/uec_phy.c +++ b/drivers/qe/uec_phy.c @@ -351,6 +351,15 @@ static int marvell_config_aneg (struct uec_mii_info *mii_info) static int genmii_config_aneg (struct uec_mii_info *mii_info) { if (mii_info->autoneg) { + /* Speed up the common case, if link is already up, speed and + duplex match, skip auto neg as it already matches */ + if (!genmii_read_status(mii_info) && mii_info->link) + if (mii_info->duplex == DUPLEX_FULL && + mii_info->speed == SPEED_100) + if (mii_info->advertising & + ADVERTISED_100baseT_Full) + return 0; + config_genmii_advert (mii_info); genmii_restart_aneg (mii_info); } else |