spi: fsl_qspi: Assign AMBA mem according CS num in dts

QSPI controller automatic enable the chipselect signal according the
dest AMBA memory address. Now we distribute the AMBA memory zone
averagely to every chipselect slave device according chipselect
numbers got from dts node.

Signed-off-by: Yuan Yao <yao.yuan@nxp.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Reviewed-by: York Sun <york.sun@nxp.com>
1 file changed