hi,
I search how to make a multiplexing for my unstandar spi on my fpga. why ? because my spi register are 1 slot more. this slot is a sublayer for non standard connection data bus selector. I have 1 card connected at 4 card by my spi implementation. i want to use my spi chip on the fpga with the standard <sspi> command. Then for that i make a spi driver. on this driver i need to make 4 udevice (for only 1 spi chip on device-tree). why ? because i want set my registre slot for select the good data bus, then for select the good card connected on him. I have make a simple command who work, but its not approved by ma boss... He want use the standard interface with the unstandard spi hardware.
I search find 2 week... but not find how to do. Are you an idea for make 4 spi on uboot with only 1 on device-tree ? Actually i write 4 time the same device on dts... Then i run 4 time the driver... its not good...
Thanks for reading with my bad english ^^.