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Date: Wed, 25 Nov 2015 09:22:56 +0800 From: Shuge <shugelinux@...il.com> To: Maxime Ripard <maxime.ripard@...e-electrons.com> Cc: linux-sunxi <linux-sunxi@...glegroups.com>, atx@....name, linux-clk@...r.kernel.org, linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org, gpatchesrdh@...as.com, mturquette@...aro.org, hdegoede@...hat.com, sboyd@...eaurora.org, mturquette@...libre.com, emilio@...pez.com.ar, linux@....linux.org.uk, edubezval@...il.com, rui.zhang@...el.com, wens@...e.org, galak@...eaurora.org, ijc+devicetree@...lion.org.uk, mark.rutland@....com, pawel.moll@....com, robh+dt@...nel.org Subject: Re: [linux-sunxi] Re: [PATCH v2 1/5] ARM: dts: sun8i: Add SID node On Monday, November 23, 2015 at 17:32 UTC+8, Maxime Ripard wrote: > 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 <a...@....name <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@...14000 { >>>> + 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? > Some control register about SID. offset: 0x40 SID Program/Read Control Register offset: 0x50 SID Program Key Value Register offset: 0x60 SID Read Key Value Register offset: 0x70 \ offset: 0x80 SJTAG Attribute 0 Register offset: 0x84 SJTAG Attribute 1 Register offset: 0x88 SJTAG Select Register offset: 0x90 SID Program Ctrol register for burned timing > > Thanks! > Maxime > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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