From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from eggs.gnu.org ([2001:4830:134:3::10]:37410)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <edgar.iglesias@gmail.com>) id 1bxH2V-0006yb-56
	for qemu-devel@nongnu.org; Thu, 20 Oct 2016 13:22:00 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <edgar.iglesias@gmail.com>) id 1bxH2U-0001bH-89
	for qemu-devel@nongnu.org; Thu, 20 Oct 2016 13:21:59 -0400
Date: Thu, 20 Oct 2016 19:21:46 +0200
From: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
Message-ID: <20161020172146.GA25226@toto>
References: <1476784025-27293-1-git-send-email-ppandit@redhat.com>
	<CAFEAcA8hkSJa5rVpNrL1D7w_U-1EKSf-t2G5jKzxceXL2rqRdg@mail.gmail.com>
	<alpine.LFD.2.20.1610182307550.1547@wniryva>
	<CAKmqyKOMrcTAta-rHj-yFbdpPpT_wtpO-YWAqK=AVCuUuJTT4A@mail.gmail.com>
	<alpine.LFD.2.20.1610191539170.12629@wniryva>
	<CAKmqyKMLvYDTvofMF=5k2sYNKPS+HtWYvz6RCdsd4AQG97H6nQ@mail.gmail.com>
	<alpine.LFD.2.20.1610201116520.27908@wniryva>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <alpine.LFD.2.20.1610201116520.27908@wniryva>
Subject: Re: [Qemu-devel] [Qemu-arm] [PATCH] char: cadence: check divider
 against baud rate
List-Id: <qemu-devel.nongnu.org>
List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.nongnu.org/archive/html/qemu-devel/>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: P J P <ppandit@redhat.com>
Cc: Alistair Francis <alistair.francis@xilinx.com>, Peter Maydell <peter.maydell@linaro.org>, qemu-arm <qemu-arm@nongnu.org>, Huawei PSIRT <psirt@huawei.com>, Qemu Developers <qemu-devel@nongnu.org>

On Thu, Oct 20, 2016 at 11:25:47AM +0530, P J P wrote:
> +-- On Wed, 19 Oct 2016, Alistair Francis wrote --+
> | I don't think the Cadence datasheets are public. If you can't find it
> | from a simple Google search I don't think you have access.
> 
>   I see, okay.
> 
> I think it'll greatly help if device emulator writers include a link to its 
> specification/datasheet resources in the respective source file. At least if 
> these are publicly available. That way one knows for sure which specifications 
> to follow while debugging, instead of searching and sifting through multiple 
> different versions. OR Maybe there could a field in the MAINTAINERS file which 
> would point to respective reference resources. (just a thought)

Hi,

The UART is described in the Zynq TRMs, I think you can just
google for zynq TRM and a reference to UG585 and UG1085 will come up.

http://www.xilinx.com/support/documentation/user_guides/ug585-Zynq-7000-TRM.pdf
http://www.xilinx.com/support/documentation/user_guides/ug1085-zynq-ultrascale-trm.pdf

AFAIK, the ZynqMP has a newer version of the cadence UART with a superset of
the feature set. I don't think QEMU models any of the differences though.

Cheers,
Edgar


> 
> Thank you.
> --
> Prasad J Pandit / Red Hat Product Security Team
> 47AF CE69 3A90 54AA 9045 1053 DD13 3D32 FE5B 041F
>