diff options
Diffstat (limited to 'drivers/net/mdio')
| -rw-r--r-- | drivers/net/mdio/mdio-ipq8064.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/net/mdio/mdio-ipq8064.c b/drivers/net/mdio/mdio-ipq8064.c index 14b3c310af73..bd1aea2d5a26 100644 --- a/drivers/net/mdio/mdio-ipq8064.c +++ b/drivers/net/mdio/mdio-ipq8064.c @@ -65,7 +65,7 @@ ipq8064_mdio_read(struct mii_bus *bus, int phy_addr, int reg_offset) ((reg_offset << MII_REG_SHIFT) & MII_REG_MASK); regmap_write(priv->base, MII_ADDR_REG_ADDR, miiaddr); - usleep_range(8, 10); + usleep_range(10, 13); err = ipq8064_mdio_wait_busy(priv); if (err) @@ -91,7 +91,14 @@ ipq8064_mdio_write(struct mii_bus *bus, int phy_addr, int reg_offset, u16 data) ((reg_offset << MII_REG_SHIFT) & MII_REG_MASK); regmap_write(priv->base, MII_ADDR_REG_ADDR, miiaddr); - usleep_range(8, 10); + + /* For the specific reg 31 extra time is needed or the next + * read will produce garbage data. + */ + if (reg_offset == 31) + usleep_range(30, 43); + else + usleep_range(10, 13); return ipq8064_mdio_wait_busy(priv); } |