Commit be671947 authored by Matt Carlson's avatar Matt Carlson Committed by David S. Miller

tg3: Fix link flap at 100Mbps with EEE enabled

This patch increases the scope of the EEE interoperability workaround
to include more asic revisions.  The workarond value is tuned to
workaround a link flap issue at 100Mbps.
Signed-off-by: default avatarMatt Carlson <mcarlson@broadcom.com>
Reviewed-by: default avatarMichael Chan <mchan@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 9e975cc2
......@@ -3131,15 +3131,16 @@ static int tg3_phy_autoneg_cfg(struct tg3 *tp, u32 advertise, u32 flowctrl)
switch (GET_ASIC_REV(tp->pci_chip_rev_id)) {
case ASIC_REV_5717:
case ASIC_REV_57765:
if (!tg3_phydsp_read(tp, MII_TG3_DSP_CH34TP2, &val))
tg3_phydsp_write(tp, MII_TG3_DSP_CH34TP2, val |
MII_TG3_DSP_CH34TP2_HIBW01);
/* Fall through */
case ASIC_REV_5719:
val = MII_TG3_DSP_TAP26_ALNOKO |
MII_TG3_DSP_TAP26_RMRXSTO |
MII_TG3_DSP_TAP26_OPCSINPT;
tg3_phydsp_write(tp, MII_TG3_DSP_TAP26, val);
/* Fall through */
case ASIC_REV_5720:
if (!tg3_phydsp_read(tp, MII_TG3_DSP_CH34TP2, &val))
tg3_phydsp_write(tp, MII_TG3_DSP_CH34TP2, val |
MII_TG3_DSP_CH34TP2_HIBW01);
}
val = 0;
......
......@@ -2180,7 +2180,7 @@
#define MII_TG3_DSP_TAP26_OPCSINPT 0x0004
#define MII_TG3_DSP_AADJ1CH0 0x001f
#define MII_TG3_DSP_CH34TP2 0x4022
#define MII_TG3_DSP_CH34TP2_HIBW01 0x017b
#define MII_TG3_DSP_CH34TP2_HIBW01 0x01ff
#define MII_TG3_DSP_AADJ1CH3 0x601f
#define MII_TG3_DSP_AADJ1CH3_ADCCKADJ 0x0002
#define MII_TG3_DSP_EXP1_INT_STAT 0x0f01
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment