diff options
Diffstat (limited to 'drivers/net/phy')
| -rw-r--r-- | drivers/net/phy/micrel.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c index b4c67c3a928b..55caaaf969da 100644 --- a/drivers/net/phy/micrel.c +++ b/drivers/net/phy/micrel.c @@ -29,6 +29,7 @@ #include <linux/micrel_phy.h> #include <linux/of.h> #include <linux/clk.h> +#include <linux/delay.h> /* Operation Mode Strap Override */ #define MII_KSZPHY_OMSO 0x16 @@ -738,6 +739,12 @@ static int kszphy_resume(struct phy_device *phydev) genphy_resume(phydev); + /* After switching from power-down to normal mode, an internal global + * reset is automatically generated. Wait a minimum of 1 ms before + * read/write access to the PHY registers. + */ + usleep_range(1000, 2000); + ret = kszphy_config_reset(phydev); if (ret) return ret; |