On Wed, Jul 15, 2015 at 02:12:54PM +0000, Ranjit Abhimanyu Waghmode wrote: > > > What is stacked mode? > > > --------------------- > > > ZynqMP GQSPI controller supports stacked mode with following > > functionalities: > > > 1) The Generic Quad-SPI controller also supports two SPI flash memories > > > in a shared bus arrangement to reduce IO pin count. > > > 2) Separate chip select lines > > > 3) Shared I/O lines > > > 4) This mode is targeted for increasing the flash memory and no performance > > > improvement when compared with single. > > This is just a normal SPI controller from a SPI point of view. > How can we really represent the stacked mode in current configuration? In the same way as any other controller with two chip selects... there are quite a few other drivers that provide examples of this, you should look for one that has hardware control similar to yours.
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