Re: [RFC][PATCH] Xilinx uartlite serial driver

["David H. Lynch Jr." <dhlii@dlasys.net>]

Peter Korsgaard wrote:
>>>>>> "David" == David H Lynch <dhlii@dlasys.net> writes:
>>>>>>             
>
> Hi,
>
>
>  David> Also there is no provision for running the UartLite without
>  David> using interrupts.  The Pico E12/E14 frequently use FPGA
>  David> firmare that does not include a PIC.  Some implimentations of
>  David> the UartLite use dcr instead of memory mapped ports.
>    
> No - again like the early serial stuff that's something that can be
> added once the base driver is mainlined if there's demand.
>
> Does polling even work decently with the small fifo size of the
> uartlite?
>
>   
     I do not care about DCR,  but as the responsible party for the only
board I am aware of that does use the uartlite as its
     primary serial device, which typically does not have interrupt
support, that is something I care about alot.

     You can poll a serial port on an 8080 running 1Mhz with a serial
port with no fifo.
     16 bytes on a 300Mhz PPC is heaven. Works fine at 115K baud.



-- 
Dave Lynch 					  	    DLA Systems
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