From: Alan Cox <alan@linux.intel.com>
To: leroy christophe <christophe.leroy@c-s.fr>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
Vitaly Bordug <vitb@kernel.crashing.org>,
Marcelo Tosatti <marcelo@kvack.org>,
linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH] Powerpc 8xx CPM_UART delay in receive
Date: Mon, 10 Sep 2012 14:10:21 +0100 [thread overview]
Message-ID: <20120910141021.6e7762d6@bob.linux.org.uk> (raw)
In-Reply-To: <504D922C.1030407@c-s.fr>
> * 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
WARNING: multiple messages have this Message-ID (diff)
From: Alan Cox <alan@linux.intel.com>
To: leroy christophe <christophe.leroy@c-s.fr>
Cc: Marcelo Tosatti <marcelo@kvack.org>,
linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org,
Alan Cox <alan@lxorguk.ukuu.org.uk>
Subject: Re: [PATCH] Powerpc 8xx CPM_UART delay in receive
Date: Mon, 10 Sep 2012 14:10:21 +0100 [thread overview]
Message-ID: <20120910141021.6e7762d6@bob.linux.org.uk> (raw)
In-Reply-To: <504D922C.1030407@c-s.fr>
> * 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
next prev parent reply other threads:[~2012-09-10 13:10 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-14 14:26 [PATCH] Powerpc 8xx CPM_UART delay in receive Christophe Leroy
2012-08-14 14:26 ` Christophe Leroy
2012-08-14 14:52 ` Alan Cox
2012-08-14 14:52 ` Alan Cox
2012-08-16 13:16 ` leroy christophe
2012-08-16 13:16 ` leroy christophe
2012-08-16 14:29 ` Alan Cox
2012-08-16 14:29 ` Alan Cox
2012-08-16 14:35 ` leroy christophe
2012-08-16 14:35 ` leroy christophe
2012-08-16 14:35 ` leroy christophe
2012-08-16 15:21 ` Alan Cox
2012-08-16 15:21 ` Alan Cox
2012-08-16 15:21 ` Alan Cox
2012-09-10 7:09 ` leroy christophe
2012-09-10 7:09 ` leroy christophe
2012-09-10 13:10 ` Alan Cox [this message]
2012-09-10 13:10 ` Alan Cox
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