linux-kernel - RE: [PATCH v2 08/10] arm64: dts: exynos: axis: Add initial ARTPEC-8 SoC support

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Message-ID: <000001dc135a$aa6b10c0$ff413240$@samsung.com>
Date: Fri, 22 Aug 2025 17:18:18 +0530
From: "Ravi Patel" <ravi.patel@...sung.com>
To: "'Krzysztof Kozlowski'" <krzk@...nel.org>, <jesper.nilsson@...s.com>,
	<mturquette@...libre.com>, <sboyd@...nel.org>, <robh@...nel.org>,
	<krzk+dt@...nel.org>, <conor+dt@...nel.org>, <s.nawrocki@...sung.com>,
	<cw00.choi@...sung.com>, <alim.akhtar@...sung.com>,
	<linus.walleij@...aro.org>, <tomasz.figa@...il.com>,
	<catalin.marinas@....com>, <will@...nel.org>, <arnd@...db.de>
Cc: <ksk4725@...sia.com>, <kenkim@...sia.com>, <pjsin865@...sia.com>,
	<gwk1013@...sia.com>, <hgkim05@...sia.com>, <mingyoungbo@...sia.com>,
	<smn1196@...sia.com>, <pankaj.dubey@...sung.com>, <shradha.t@...sung.com>,
	<inbaraj.e@...sung.com>, <swathi.ks@...sung.com>,
	<hrishikesh.d@...sung.com>, <dj76.yang@...sung.com>,
	<hypmean.kim@...sung.com>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <linux-samsung-soc@...r.kernel.org>,
	<linux-arm-kernel@...s.com>, <linux-clk@...r.kernel.org>,
	<devicetree@...r.kernel.org>, <linux-gpio@...r.kernel.org>,
	<soc@...ts.linux.dev>
Subject: RE: [PATCH v2 08/10] arm64: dts: exynos: axis: Add initial ARTPEC-8
 SoC support



> -----Original Message-----
> From: Krzysztof Kozlowski <krzk@...nel.org>
> Sent: 22 August 2025 12:09
> To: Ravi Patel <ravi.patel@...sung.com>; jesper.nilsson@...s.com; mturquette@...libre.com; sboyd@...nel.org;
> robh@...nel.org; krzk+dt@...nel.org; conor+dt@...nel.org; s.nawrocki@...sung.com; cw00.choi@...sung.com;
> alim.akhtar@...sung.com; linus.walleij@...aro.org; tomasz.figa@...il.com; catalin.marinas@....com; will@...nel.org;
> arnd@...db.de
> Cc: ksk4725@...sia.com; kenkim@...sia.com; pjsin865@...sia.com; gwk1013@...sia.com; hgkim05@...sia.com;
> mingyoungbo@...sia.com; smn1196@...sia.com; pankaj.dubey@...sung.com; shradha.t@...sung.com;
> inbaraj.e@...sung.com; swathi.ks@...sung.com; hrishikesh.d@...sung.com; dj76.yang@...sung.com;
> hypmean.kim@...sung.com; linux-kernel@...r.kernel.org; linux-arm-kernel@...ts.infradead.org; linux-samsung-
> soc@...r.kernel.org; linux-arm-kernel@...s.com; linux-clk@...r.kernel.org; devicetree@...r.kernel.org; linux-
> gpio@...r.kernel.org; soc@...ts.linux.dev
> Subject: Re: [PATCH v2 08/10] arm64: dts: exynos: axis: Add initial ARTPEC-8 SoC support
> 
> On 21/08/2025 14:32, Ravi Patel wrote:
> > From: SungMin Park <smn1196@...sia.com>
> >
> > Add initial device tree support for Axis ARTPEC-8 SoC.
> >
> > This SoC contains 4 Cortex-A53 CPUs and several other peripheral IPs.
> >
> > Signed-off-by: SungMin Park <smn1196@...sia.com>
> > Signed-off-by: SeonGu Kang <ksk4725@...sia.com>
> > Signed-off-by: Ravi Patel <ravi.patel@...sung.com>
> ...
> 
> > +
> > +	timer {
> > +		compatible = "arm,armv8-timer";
> > +		interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>,
> 
> No CPU mask?

Thanks for review and pointing out.

Yes. You are right.
I will add GIC_CPU_MASK_SIMPLE(4) in next version as this uses GICv2 (gic-400) not GICv3.

This may be carried out from other exynos/fsd platforms

I found below 2 related links.
https://lkml.org/lkml/2025/6/13/1073
https://lkml.org/lkml/2023/11/28/403

Thanks,
Ravi

> 
> > +			     <GIC_PPI 14 IRQ_TYPE_LEVEL_LOW>,
> > +			     <GIC_PPI 11 IRQ_TYPE_LEVEL_LOW>,
> > +			     <GIC_PPI 10 IRQ_TYPE_LEVEL_LOW>;
> > +	};
> > +};
> 
> 
> Best regards,
> Krzysztof