[U-Boot] [RFC PATCH 2/2] serial_mxc: disable new features of autobaud detection

[Eric Nelson]

Thanks Fabio,

On 05/14/2014 04:36 PM, Fabio Estevam wrote:
> On Wed, May 14, 2014 at 3:04 PM, Eric Nelson
> <eric.nelson at boundarydevices.com> wrote:
>> Bit 7 of UCR3 is described in the i.MX3x/i.MX5x/i.MX6x
>> reference manuals as follows:
>>
>>          Autobaud Detection Not Improved-. Disables new features of
>>          autobaud detection (See Baud Rate Automatic Detection
>>          Protocol, for more details).
>>
>>          0 Autobaud detection new features selected
>>          1 Keep old autobaud detection mechanism
>>
>> On at least i.MX6DQ, i.MX6DLS and i.MX53, the "new features"
>> occasionally cause the receiver to get out of sync and
>> continuously produce received characters of '\xff'.
>>
>> This patch disables the "new feature" on all boards, since
>> there's no support for auto-baud in U-Boot on any of them.
>>
>> More details are available in this post on i.MX Community:
>>          https://community.freescale.com/message/403254
>>
>> Signed-off-by: Eric Nelson <eric.nelson at boundarydevices.com>
>
> Good job, Eric!
>
> I was able to test it on mx6 and mx53 boards:
>
> Tested-by: Fabio Estevam <fabio.estevam at freescale.com>
>

Since you've dug through all of the reference manuals,
I'll re-send Patch 2 without the RFC.

Regards,


Eric