diff options
| author | Vitaly Lifshits <vitaly.lifshits@intel.com> | 2025-03-13 16:05:56 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-04-10 14:39:33 +0200 |
| commit | d11d0ce887f4fdb2fb2e4364cde60913c80c3fce (patch) | |
| tree | b8b93a1e83c8a771596cebf3eec71acc40b89e00 /drivers/net/ethernet/intel/e1000e/defines.h | |
| parent | 40d187b247b39b4abe38197c3cb75fbe6bc3731b (diff) | |
e1000e: change k1 configuration on MTP and later platforms
[ Upstream commit efaaf344bc2917cbfa5997633bc18a05d3aed27f ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/intel/e1000e/defines.h')
| -rw-r--r-- | drivers/net/ethernet/intel/e1000e/defines.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/e1000e/defines.h b/drivers/net/ethernet/intel/e1000e/defines.h index 5e2cfa73f889..8294a7c4f122 100644 --- a/drivers/net/ethernet/intel/e1000e/defines.h +++ b/drivers/net/ethernet/intel/e1000e/defines.h @@ -803,4 +803,7 @@ /* SerDes Control */ #define E1000_GEN_POLL_TIMEOUT 640 +#define E1000_FEXTNVM12_PHYPD_CTRL_MASK 0x00C00000 +#define E1000_FEXTNVM12_PHYPD_CTRL_P1 0x00800000 + #endif /* _E1000_DEFINES_H_ */ |