linux-kernel - Re: [RFCv2 3/3] ARM: dts: N900: Add SSI information

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Message-ID: <20130916150147.GA14047@earth.universe>
Date:	Mon, 16 Sep 2013 17:01:47 +0200
From:	Sebastian Reichel <sre@...ian.org>
To:	Javier Martinez Canillas <martinez.javier@...il.com>
Cc:	Linus Walleij <linus.walleij@...aro.org>,
	Shubhrajyoti Datta <omaplinuxkernel@...il.com>,
	Carlos Chinea <cch.devel@...il.com>,
	Paul Walmsley <paul@...an.com>,
	Kevin Hilman <khilman@...prootsystems.com>,
	Tony Lindgren <tony@...mide.com>,
	Russell King <linux@....linux.org.uk>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <rob.herring@...xeda.com>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Stephen Warren <swarren@...dotorg.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Rob Landley <rob@...dley.net>,
	Benoît Cousson <bcousson@...libre.com>,
	devicetree@...r.kernel.org, linux-doc@...r.kernel.org,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>
Subject: Re: [RFCv2 3/3] ARM: dts: N900: Add SSI information

Hi,

> Is the Synchronous Serial Interface (SSI)  only supported by
> OMAP34xx/OMAP35xx SoC and not by OMAP36xx/OMAP37xx SoC?
> 
> I'm asking this since if SSI is supported by both we should add the
> device nodes in omap3.dtsi instead of omap34xx.dtsi.
> 
> I thought that all OMAP3 SoC supported SSI and all OMAP4 SoC supported
> HSI but I guess I was wrong...

I just do not know. Information about the SSI core is not included
in the public OMAP TRM. It only lists the memory space as reserved.

Thus I only included it in OMAP34xx, which is used in Nokia N900 and
must support SSI.

-- Sebastian

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