From: Stefano Babic <sbabic@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] serial_mxc: disable new features of autobaud detection
Date: Wed, 28 May 2014 17:39:00 +0200 [thread overview]
Message-ID: <53860314.10001@denx.de> (raw)
In-Reply-To: <1400111883-2333-1-git-send-email-eric.nelson@boundarydevices.com>
On 15/05/2014 01:58, Eric Nelson 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@boundarydevices.com>
> Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
> ---
Applied to u-boot-imx, thanks !
Best regards,
Stefano Babic
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prev parent reply other threads:[~2014-05-28 15:39 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-14 23:58 [U-Boot] [PATCH] serial_mxc: disable new features of autobaud detection Eric Nelson
2014-05-15 9:21 ` Stefano Babic
2014-05-28 15:39 ` Stefano Babic [this message]
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