linux-kernel - Re: [PATCH v3 0/4] soc: amlogic: add new meson-gx-socinfo-sm driver

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Date: Thu, 14 Mar 2024 14:30:21 +0000
From: Sudeep Holla <sudeep.holla@....com>
To: Viacheslav <adeep@...ina.in>
Cc: Neil Armstrong <neil.armstrong@...aro.org>,
	Sudeep Holla <sudeep.holla@....com>,
	Kevin Hilman <khilman@...libre.com>,
	Jerome Brunet <jbrunet@...libre.com>,
	Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-amlogic@...ts.infradead.org, Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Subject: Re: [PATCH v3 0/4] soc: amlogic: add new meson-gx-socinfo-sm driver

On Thu, Mar 14, 2024 at 03:25:02PM +0300, Viacheslav wrote:
> Hi!
> 
> 14/03/2024 13.40, Sudeep Holla wrote:
> > On Thu, Mar 14, 2024 at 09:59:50AM +0300, Viacheslav Bocharov wrote:
> > > The Amlogic Meson SoC Secure Monitor implements a call to retrieve an
> > > unique SoC ID starting from the GX Family and all new families.
> > > But GX-family chips (e.g. GXB, GXL and newer) supports also 128-bit
> > > chip ID. 128-bit chip ID consists 32-bit SoC version and 96-bit OTP data.
> > > 
> > 
> > How old or new are these SoCs ? The reason I ask is that it is really
> > sad to see vendors still creating their custom interfaces for such things
> > despite the standard SMCCC interface SOC_ID introduced in SMCCC v1.2 some
> > time in 2020.
> 
> Most of these SoC were created before 2020.
> 

Fair enough then. Hope they use SOC_ID on newer SoCs.

-- 
Regards,
Sudeep