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dptx: Preserve main link enable status while link training.

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Signed-off-by: Andrei-Liviu Simion <andrei.simion@xilinx.com>
This commit is contained in:
Andrei-Liviu Simion 2015-01-07 12:58:51 -08:00 • committed by Nava kishore Manne
parent dc83ef949f
commit 375c80052a
1 changed files with 7 additions and 1 deletions
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8
XilinxProcessorIPLib/drivers/dptx/src/xdptx.c
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@ -414,6 +414,7 @@ u32 XDptx_CfgMainLinkMax(XDptx *InstancePtr)
u32 XDptx_EstablishLink(XDptx *InstancePtr) u32 XDptx_EstablishLink(XDptx *InstancePtr)
{ {
u32 Status; u32 Status;
u32 ReenableMainLink;
/* Verify arguments. */ /* Verify arguments. */
Xil_AssertNonvoid(InstancePtr != NULL); Xil_AssertNonvoid(InstancePtr != NULL);
@ -433,6 +434,9 @@ u32 XDptx_EstablishLink(XDptx *InstancePtr)
XDptx_ResetPhy(InstancePtr, XDPTX_PHY_CONFIG_PHY_RESET_MASK); XDptx_ResetPhy(InstancePtr, XDPTX_PHY_CONFIG_PHY_RESET_MASK);
ReenableMainLink = XDptx_ReadReg(InstancePtr->Config.BaseAddr,
XDPTX_ENABLE_MAIN_STREAM);
XDptx_DisableMainLink(InstancePtr); XDptx_DisableMainLink(InstancePtr);
/* Train main link. */ /* Train main link. */
@ -441,7 +445,9 @@ u32 XDptx_EstablishLink(XDptx *InstancePtr)
return XST_FAILURE; return XST_FAILURE;
} }
XDptx_EnableMainLink(InstancePtr); if (ReenableMainLink != 0) {
XDptx_EnableMainLink(InstancePtr);
}
return XST_SUCCESS; return XST_SUCCESS;
} }