[U-Boot-Users] [PATCH] sequoia uarts

[Steven A. Falco <sfalco@harris.com>]

Stefan Roese wrote:
> On Friday 01 August 2008, Wolfgang Denk wrote:
>   
>> In message <48936FD4.3010802@harris.com> you wrote:
>>     
>>> I have verified that the Sequoia (440EPx) does not have its UARTs
>>> properly configured.  The attached patch corrects this by setting three
>>> bits in SDR0_PFC1 to enable 4-wire mode, and to select cts/rts
>>> functionality for the UARTs.  Also, I modified the GPIO settings for
>>>       
>> We definitely do NOT want any hardware handshake on the serial
>> console. Never.
>>     
>
> Ack, we don't want hardware handshake enabled in U-Boot. But if I understand 
> this correctly, then this patch from Steven configures the RTS/CTS lines 
> correctly (they are multiplexed with other signals), so that they *can* be 
> used by the OS if needed. It doesn't enable hardware handshake in U-Boot.
>
> Steven please correct me if I am wrong here.
>   

You are correct.  The patch simply configures the lines to match the
schematic - it does not activate hardware handshake within U-Boot.

    Steve

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