diff options
| author | Karol Kolacinski <karol.kolacinski@intel.com> | 2025-06-23 17:30:02 -0700 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2025-06-26 08:37:00 -0700 |
| commit | 84b8694433c8ac0c13acd2b247fde682751e0ff2 (patch) | |
| tree | f15a31de64fe2676b41d761713062309014ff13f | |
| parent | df3f3c5645bec3c7e2595acbf37db34c0a7de58a (diff) | |
ice: fall back to TCXO on TSPLL lock fail
TSPLL can fail when trying to lock to TIME_REF as a clock source, e.g.
when the external clock source is not stable or connected to the board.
To continue operation after failure, try to lock again to internal TCXO
and inform user about this.
Reviewed-by: Milena Olech <milena.olech@intel.com>
Signed-off-by: Karol Kolacinski <karol.kolacinski@intel.com>
Tested-by: Rinitha S <sx.rinitha@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_tspll.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_tspll.c b/drivers/net/ethernet/intel/ice/ice_tspll.c index abd9f4ff2f55..886a18b2e65f 100644 --- a/drivers/net/ethernet/intel/ice/ice_tspll.c +++ b/drivers/net/ethernet/intel/ice/ice_tspll.c @@ -605,5 +605,17 @@ int ice_tspll_init(struct ice_hw *hw) /* Configure the TSPLL using the parameters from the function * capabilities. */ - return ice_tspll_cfg(hw, tspll_freq, clk_src); + err = ice_tspll_cfg(hw, tspll_freq, clk_src); + if (err) { + dev_warn(ice_hw_to_dev(hw), "Failed to lock TSPLL to predefined frequency. Retrying with fallback frequency.\n"); + + /* Try to lock to internal TCXO as a fallback. */ + tspll_freq = ice_tspll_default_freq(hw->mac_type); + clk_src = ICE_CLK_SRC_TCXO; + err = ice_tspll_cfg(hw, tspll_freq, clk_src); + if (err) + dev_warn(ice_hw_to_dev(hw), "Failed to lock TSPLL to fallback frequency.\n"); + } + + return err; } |