Increase the setup and hold time of qspi to accomodate for a worst case
of ~15ns with ref clk of 300MHz.
Signed-off-by: Harini Katakam <harinik@xilinx.com>
Acked by: Punnaiah Choudary Kalluri <punnaia@xilinx.com>
This patch removes NULL pointer checks for Rx/Tx
buffers since writing/reading from 0x0 is permitted.
Used Tx/Rx flags to check for Writing/reading.
Signed-off-by: P L Sai Krishna <lakshmis@xilinx.com>
This patch modifies the if condition logic for ReadId
function in examples by replacing equal-to operator
with equality.
Signed-off-by: P L Sai Krishna <lakshmis@xilinx.com>
This patch modifies the Bus width value during dummy phase
in examples since it is recommended to be same as in
data phase.
Signed-off-by: P L Sai Krishna <lakshmis@xilinx.com>
QSPI HW doesn't actually care what the SPI mode is for the dummy phase
of flash commands. We have confirmed this with randomized testing.
However due to a core limitation of QEMU it is expected to match the
mode of the address phase for QEMU.
So since QEMU is the only platform that cares, set the dummy mode to
QEMUs expectation.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
There is a bug wherein the DMA listening to RX empty status goes busy
if RX FIFO clear bit is set in the FIFO control register, even if there
is no transfer request. So switch to I/O mode always to clear RX FIFO and
restore the mode in the end.
Signed-off-by: Harini Katakam <harinik@xilinx.com>
This patch documented the parameters of XQspiPsu_SelectFlash API
to remove doxygen warnings and modified the xqspipsu.h file
header as number of characters in a line are more than usual.
Signed-off-by: P L Sai Krishna <lakshmis@xilinx.com>
This patch does following things
1. Added IO mode support for qspipsu.
2. Modified the GenFifoEntryData API since unaligned data should
be the last entry in GenFifo.
Signed-off-by: P L Sai Krishna <lakshmis@xilinx.com>
