Re: [PATCH v2 1/5] ARM: dts: sun8i: Add SID node

Sugar Wu
2015-11-24T06:51:15Z

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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 <a...-MwjtXicnQwU@public.gmane.org <javascript:>>
> > ---
> > 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.

>
>
Thanks,
> Maxime
>
> --
> Maxime Ripard, Free Electrons
> Embedded Linux, Kernel and Android engineering
> http://free-electrons.com
>

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