We have a custom board with the zynq UltraScale+ MPSoC.
Whenever we configure the qspi to dual parallel in the u-boot dts, we get in the spl the messages:
Trying to boot from SPI
SPL: failed to boot from all devices
When we switch to is-dual = <0>, the card boots, but the mount of jffs2 file system fails- the next messages appear in the log: