Commit Graph

2 Commits

Author SHA1 Message Date
Jacob Keller
b111ab5a11 ice: ensure the hardware Clock Generation Unit is configured
The E822 device has a Clock Generation Unit (CGU) responsible for
determining the clock frequency that drives the timers.

Ensure this function is initialized when bringing up the PTP support, so
that the clock has a known frequency.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-12-21 09:11:40 -08:00
Jacob Keller
3a7496234d ice: implement basic E822 PTP support
Implement support for the basic operations needed to enable the PTP
hardware clock on E822 devices.

This includes implementations for the various PHY access functions, as
well as the ability to start and stop the PHY timers. This is different
from the E810 device because the configuration depends on link speed, so
we cannot just start the PHYs immediately. We must wait until the link
is up to get proper values for the speed based initialization.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-12-21 09:11:37 -08:00