From mboxrd@z Thu Jan 1 00:00:00 1970 From: Maxime Ripard Subject: Re: Re: [PATCH v2 1/5] ARM: dts: sun8i: Add SID node Date: Tue, 24 Nov 2015 10:32:02 +0100 Message-ID: <20151124093202.GL32142@lukather> References: <20151123124356.GW32142@lukather> Reply-To: maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="9RXjJcDGNuBviZqz" Return-path: Content-Disposition: inline In-Reply-To: List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , To: Sugar Wu Cc: linux-sunxi , atx-MwjtXicnQwU@public.gmane.org, linux-clk-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, gpatchesrdh-I1/eAgTnXDYAvxtiuMwx3w@public.gmane.org, mturquette-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, hdegoede-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, sboyd-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org, mturquette-rdvid1DuHRBWk0Htik3J/w@public.gmane.org, emilio-0Z03zUJReD5OxF6Tv1QG9Q@public.gmane.org, linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org, edubezval-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, rui.zhang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, wens-jdAy2FN1RRM@public.gmane.org, galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org, mark.rutland-5wv7dgnIgG8@public.gmane.org, pawel.moll-5wv7dgnIgG8@public.gmane.org, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org List-Id: devicetree@vger.kernel.org --9RXjJcDGNuBviZqz Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline On Mon, Nov 23, 2015 at 10:51:15PM -0800, Sugar Wu wrote: > On Monday, November 23, 2015 at 8:43:59 PM UTC+8, Maxime Ripard wrote: > > > > Hi, > > > > On Mon, Nov 23, 2015 at 09:02:48AM +0100, Josef Gajdusek wrote: > > > Add a node describing the Security ID memory to the > > > Allwinner H3 .dtsi file. > > > > > > Signed-off-by: Josef Gajdusek > > > > --- > > > arch/arm/boot/dts/sun8i-h3.dtsi | 7 +++++++ > > > 1 file changed, 7 insertions(+) > > > > > > diff --git a/arch/arm/boot/dts/sun8i-h3.dtsi > > b/arch/arm/boot/dts/sun8i-h3.dtsi > > > index 0faa38a..58de718 100644 > > > --- a/arch/arm/boot/dts/sun8i-h3.dtsi > > > +++ b/arch/arm/boot/dts/sun8i-h3.dtsi > > > @@ -359,6 +359,13 @@ > > > #size-cells = <0>; > > > }; > > > > > > + sid: eeprom@01c14000 { > > > + compatible = "allwinner,sun4i-a10-sid"; > > > + reg = <0x01c14000 0x400>; > > > > The datasheet says it's 256 bytes wide, while the size here is of 1kB, > > is it intentional? > > SID memory map is 0x01c14000 ~ 0x01c143FF, include 2048bits efuse space. > H3 efuse space is SID_SRAM, its range is 0x01c14200 ~ +0x100. Interesting, what is below the 0x200 registers? Thanks! Maxime -- Maxime Ripard, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com --9RXjJcDGNuBviZqz--