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14.4 EDK - Zynq-7000 QSPI Polled Transfer NULL Receive Buffer overwrites address 0x0
If you are using the XQSPIPS driver and the XQspiPs_PolledTransfer Function with a NULL receive buffer, the code overwrites address 0x0 with the receive data.
A CR has been filed to fix this issue.
In the meantime, to work around the problem, provide a receive buffer of the same size as the transmit buffer.