# Re: \[PATCH\] Powerpc 8xx CPM\_UART delay in receive

- From: Alan Cox \<hidden\>
- Date: 2012-09-10 12:52:35 
- List: linux-serial
- Page: https://ratatoskr.run/linux-serial/2012/09/3920595
- Thread: https://ratatoskr.run/linux-serial/2012/08/3908106/t.md

```text
> * a value of 1 for all rates below 2400 (On 8250, fifo is set to 1
> for such rates)
> * a value of 2 for 2400 and 4800
> * a value of 4 for 9600 (which is the default on the 8250 for all
> rates above 2400)
> * a value of 8 for 19200
> * a value of 16 for 38400 and above (on UCC_UART, maxidl is set to
> 16, never 32)

That would seem sensible.



Alan
```