uartps: SW reset of RX and TX when changing baud rate
Perform SW reset of RX and TX before re-enabling, when changing baud rate. Signed-off-by: Harini Katakam <harinik@xilinx.com> Acked-by: Anirudha Sarangi <anirudh@xilinx.com>
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@ -43,6 +43,8 @@
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* Ver Who Date Changes
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* ----- ------ -------- ----------------------------------------------
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* 1.00 drg/jz 01/13/10 First Release
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* 2.2 hk 06/23/14 SW reset of RX and TX should be done when changing
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* baud rate. CR# 804281.
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* </pre>
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*
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*****************************************************************************/
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@ -624,6 +626,12 @@ int XUartPs_SetBaudRate(XUartPs *InstancePtr, u32 BaudRate)
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XUartPs_WriteReg(InstancePtr->Config.BaseAddress,
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XUARTPS_BAUDDIV_OFFSET, Best_BAUDDIV);
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/*
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* RX and TX SW reset
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*/
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XUartPs_WriteReg(InstancePtr->Config.BaseAddress, XUARTPS_CR_OFFSET,
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XUARTPS_CR_TXRST | XUARTPS_CR_RXRST);
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/*
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* Enable device
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*/
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@ -150,6 +150,8 @@
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* constant definitions.
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* 2.0 hk 03/07/14 Version number revised.
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* 2.1 hk 04/16/14 Change XUARTPS_MAX_RATE to 921600. CR# 780625.
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* 2.2 hk 06/23/14 SW reset of RX and TX should be done when changing
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* baud rate. CR# 804281.
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*
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* </pre>
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*
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