diff options
Diffstat (limited to 'drivers/net/mdio.c')
-rw-r--r-- | drivers/net/mdio.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/net/mdio.c b/drivers/net/mdio.c index 6851bdb2ce29..7d2e610f14ff 100644 --- a/drivers/net/mdio.c +++ b/drivers/net/mdio.c | |||
@@ -109,13 +109,20 @@ int mdio45_links_ok(const struct mdio_if_info *mdio, u32 mmd_mask) | |||
109 | if (mmd_mask & (1 << devad)) { | 109 | if (mmd_mask & (1 << devad)) { |
110 | mmd_mask &= ~(1 << devad); | 110 | mmd_mask &= ~(1 << devad); |
111 | 111 | ||
112 | /* Read twice because link state is latched and a | 112 | /* Reset the latched status and fault flags */ |
113 | * read moves the current state into the register */ | ||
114 | mdio->mdio_read(mdio->dev, mdio->prtad, | 113 | mdio->mdio_read(mdio->dev, mdio->prtad, |
115 | devad, MDIO_STAT1); | 114 | devad, MDIO_STAT1); |
115 | if (devad == MDIO_MMD_PMAPMD || devad == MDIO_MMD_PCS || | ||
116 | devad == MDIO_MMD_PHYXS || devad == MDIO_MMD_DTEXS) | ||
117 | mdio->mdio_read(mdio->dev, mdio->prtad, | ||
118 | devad, MDIO_STAT2); | ||
119 | |||
120 | /* Check the current status and fault flags */ | ||
116 | reg = mdio->mdio_read(mdio->dev, mdio->prtad, | 121 | reg = mdio->mdio_read(mdio->dev, mdio->prtad, |
117 | devad, MDIO_STAT1); | 122 | devad, MDIO_STAT1); |
118 | if (reg < 0 || !(reg & MDIO_STAT1_LSTATUS)) | 123 | if (reg < 0 || |
124 | (reg & (MDIO_STAT1_FAULT | MDIO_STAT1_LSTATUS)) != | ||
125 | MDIO_STAT1_LSTATUS) | ||
119 | return false; | 126 | return false; |
120 | } | 127 | } |
121 | } | 128 | } |