diff options
| author | Vitaly Lifshits <vitaly.lifshits@intel.com> | 2025-03-13 16:05:56 +0200 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2025-04-02 08:51:41 -0700 |
| commit | efaaf344bc2917cbfa5997633bc18a05d3aed27f (patch) | |
| tree | 13933327bbce5c0a4a4a5fae26ea0ed51aba3bda /drivers/net/ethernet/intel/e1000e/ich8lan.h | |
| parent | d931cf9b38da0f533cacfe51c863a9912e67822f (diff) | |
e1000e: change k1 configuration on MTP and later platforms
Starting from Meteor Lake, the Kumeran interface between the integrated
MAC and the I219 PHY works at a different frequency. This causes sporadic
MDI errors when accessing the PHY, and in rare circumstances could lead
to packet corruption.
To overcome this, introduce minor changes to the Kumeran idle
state (K1) parameters during device initialization. Hardware reset
reverts this configuration, therefore it needs to be applied in a few
places.
Fixes: cc23f4f0b6b9 ("e1000e: Add support for Meteor Lake")
Signed-off-by: Vitaly Lifshits <vitaly.lifshits@intel.com>
Tested-by: Avigail Dahan <avigailx.dahan@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/e1000e/ich8lan.h')
| -rw-r--r-- | drivers/net/ethernet/intel/e1000e/ich8lan.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.h b/drivers/net/ethernet/intel/e1000e/ich8lan.h index 2504b11c3169..5feb589a9b5f 100644 --- a/drivers/net/ethernet/intel/e1000e/ich8lan.h +++ b/drivers/net/ethernet/intel/e1000e/ich8lan.h @@ -219,6 +219,10 @@ #define I217_PLL_CLOCK_GATE_REG PHY_REG(772, 28) #define I217_PLL_CLOCK_GATE_MASK 0x07FF +/* PHY Timeouts */ +#define I217_PHY_TIMEOUTS_REG PHY_REG(770, 21) +#define I217_PHY_TIMEOUTS_K1_EXIT_TO_MASK 0x0FC0 + #define SW_FLAG_TIMEOUT 1000 /* SW Semaphore flag timeout in ms */ /* Inband Control */ |