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dp: tx: When downshifting during link training, always issue training pattern 0.

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For compliance purposes, training pattern 0 needs to be sent between
downshifting of lane count and link rates.

Signed-off-by: Andrei-Liviu Simion <andrei.simion@xilinx.com>
This commit is contained in:
Andrei-Liviu Simion 2015-01-26 12:35:31 -08:00 • committed by Nava kishore Manne
parent 45e5fabd1b
commit a36b777a40
1 changed files with 8 additions and 0 deletions
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8
XilinxProcessorIPLib/drivers/dp/src/xdp.c
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@ -1964,6 +1964,14 @@ static u32 XDp_TxRunTraining(XDp *InstancePtr)
(TrainingState == XDP_TX_TS_ADJUST_LINK_RATE))) {
return XST_FAILURE;
}
if ((TrainingState == XDP_TX_TS_ADJUST_LINK_RATE) ||
(TrainingState == XDP_TX_TS_ADJUST_LANE_COUNT)) {
Status = XDp_TxSetTrainingPattern(InstancePtr,
XDP_TX_TRAINING_PATTERN_SET_OFF);
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
}
}
/* Final status check. */