From: Peter Maydell <peter.maydell@linaro.org>
To: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Cc: "Edgar Iglesias" <edgari@xilinx.com>,
alistai@xilinx.com, "QEMU Developers" <qemu-devel@nongnu.org>,
"Andreas Färber" <afaerber@suse.de>
Subject: Re: [Qemu-devel] [PATCH v3 2/2] ssi: Name the CS GPIO.
Date: Fri, 9 May 2014 17:56:20 +0100 [thread overview]
Message-ID: <CAFEAcA_-EU+e5vL0RMSW8qd8ANb_5HtU8sXRpgkkG8hT_cV_uw@mail.gmail.com> (raw)
In-Reply-To: <ab75d5f22ac2ef1bc160e3de99101b50b314bb66.1399532194.git.peter.crosthwaite@xilinx.com>
On 8 May 2014 07:59, Peter Crosthwaite <peter.crosthwaite@xilinx.com> wrote:
> To get it out of the default GPIO list. This allows child devices to
> use the un-named GPIO namespace without having to be SSI aware. That
> is, there is no more need for machines to know about the obscure
> policy where GPIO 0 is the SSI chip-select and GPIO 1..N are the
> concrete class GPIOs (defined locally as 0..N-1).
>
> This is most notable is stellaris, which uses a device which has both
> SSI and concrete level GPIOs.
>
> Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
-- PMM
prev parent reply other threads:[~2014-05-09 16:56 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-08 6:58 [Qemu-devel] [PATCH v3 0/2] Named GPIOs Peter Crosthwaite
2014-05-08 6:59 ` [Qemu-devel] [PATCH v3 1/2] qdev: Implement named GPIOs Peter Crosthwaite
2014-05-09 16:52 ` Peter Maydell
2014-05-12 1:09 ` Peter Crosthwaite
2014-05-08 6:59 ` [Qemu-devel] [PATCH v3 2/2] ssi: Name the CS GPIO Peter Crosthwaite
2014-05-09 16:56 ` Peter Maydell [this message]
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