+config DEBUG_UART_SHIFT
+ int "UART register shift"
+ depends on DEBUG_UART
+ default 0 if DEBUG_UART
+ help
+ Some UARTs (notably ns16550) support different register layouts
+ where the registers are spaced either as bytes, words or some other
+ value. Use this value to specify the shift to use, where 0=byte
+ registers, 2=32-bit word registers, etc.
+