iMX8M two qspi issue

[weikeng-jimmy]

Hi Sir,

Customer want to enable two chip (w25q64dw) , but QSPI_B always probe failed as beolw message.

# dmesg | grep -i spi
[ 2.084054] fsl-quadspi 30bb0000.qspi: w25q64dw (8192 Kbytes)
[ 2.091144] fsl-quadspi 30bb0000.qspi: unrecognized JEDEC id bytes: ff, ff, ff
[ 2.098393] fsl-quadspi 30bb0000.qspi: Freescale QuadSPI probe failed
[ 2.104945] fsl-quadspi: probe of 30bb0000.qspi failed with error -2

I.MX8M only support two planes in one die mode ?

[art]

Is the IOMUX configured correctly for the QSPI_B channel signals? Can you see any activity on the QSPI_B channel signals when trying to access it? Please check.