For correct spi bus detection the spi0 alias is needed in the DT. Otherwise this error will ocurr in U-Boot: Invalid bus 0 (err=-19) Failed to initialize SPI flash at 0:0 (error -19) Signed-off-by: Stefan Roese <sr@denx.de> Cc: Dennis Gilmore <dgilmore@redhat.com> Tested-by: Dennis Gilmore <dgilmore@redhat.com>