mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 02:39:48 +00:00
net: phy: dp83867: increase SGMII autoneg timer duration
After reset SGMII Autoneg timer is set to 2us (bits 6 and 5 are 01). That is not enough to finalize autonegatiation on some devices. Increase this timer duration to maximum supported 16ms. Signed-off-by: Max Uvarov <muvarov@gmail.com> Cc: Heiner Kallweit <hkallweit1@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
333061b924
commit
1a97a477e6
1 changed files with 18 additions and 0 deletions
|
@ -26,6 +26,12 @@
|
|||
|
||||
/* Extended Registers */
|
||||
#define DP83867_CFG4 0x0031
|
||||
#define DP83867_CFG4_SGMII_ANEG_MASK (BIT(5) | BIT(6))
|
||||
#define DP83867_CFG4_SGMII_ANEG_TIMER_11MS (3 << 5)
|
||||
#define DP83867_CFG4_SGMII_ANEG_TIMER_800US (2 << 5)
|
||||
#define DP83867_CFG4_SGMII_ANEG_TIMER_2US (1 << 5)
|
||||
#define DP83867_CFG4_SGMII_ANEG_TIMER_16MS (0 << 5)
|
||||
|
||||
#define DP83867_RGMIICTL 0x0032
|
||||
#define DP83867_STRAP_STS1 0x006E
|
||||
#define DP83867_RGMIIDCTL 0x0086
|
||||
|
@ -292,6 +298,18 @@ static int dp83867_config_init(struct phy_device *phydev)
|
|||
0);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
/* After reset SGMII Autoneg timer is set to 2us (bits 6 and 5
|
||||
* are 01). That is not enough to finalize autoneg on some
|
||||
* devices. Increase this timer duration to maximum 16ms.
|
||||
*/
|
||||
ret = phy_modify_mmd(phydev, DP83867_DEVADDR,
|
||||
DP83867_CFG4,
|
||||
DP83867_CFG4_SGMII_ANEG_MASK,
|
||||
DP83867_CFG4_SGMII_ANEG_TIMER_16MS);
|
||||
|
||||
if (ret)
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Enable Interrupt output INT_OE in CFG3 register */
|
||||
|
|
Loading…
Reference in a new issue