linux-kernel - Re: [PATCH v6 2/7] arm64: dts: ti: k3-j784s4: Add ESM instances

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Message-ID: <20231005111554.ol4vu4oxlensmx6m@booth>
Date:   Thu, 5 Oct 2023 06:15:55 -0500
From:   Nishanth Menon <nm@...com>
To:     "J, KEERTHY" <j-keerthy@...com>
CC:     Vignesh Raghavendra <vigneshr@...com>, <robh+dt@...nel.org>,
        <conor+dt@...nel.org>, <kristo@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <u-kumar1@...com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v6 2/7] arm64: dts: ti: k3-j784s4: Add ESM instances

On 06:45-20231005, J, KEERTHY wrote:
> 
> 
> On 10/3/2023 12:20 PM, Vignesh Raghavendra wrote:
> > 
> > 
> > On 27/09/23 08:03, Keerthy wrote:
> > > Patch adds the ESM instances for j784s4. It has 3 instances.
> > > One in the main domain and two in the mcu-wakeup domian.
> > > 
> > > Signed-off-by: Keerthy <j-keerthy@...com>
> > > ---
> > >   arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi       |  8 ++++++++
> > >   arch/arm64/boot/dts/ti/k3-j784s4-mcu-wakeup.dtsi | 14 ++++++++++++++
> > >   2 files changed, 22 insertions(+)
> > > 
> > > diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi b/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
> > > index efed2d683f63..26dc3776f911 100644
> > > --- a/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
> > > +++ b/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
> > > @@ -1568,4 +1568,12 @@
> > >   		firmware-name = "j784s4-c71_3-fw";
> > >   		status = "disabled";
> > >   	};
> > > +
> > > +	main_esm: esm@...000 {
> > > +		compatible = "ti,j721e-esm";
> > > +		reg = <0x00 0x700000 0x00 0x1000>;
> > > +		ti,esm-pins = <688>, <689>, <690>, <691>, <692>, <693>, <694>,
> > > +			      <695>;
> > > +		bootph-pre-ram;
> > 
> > Similar to other nodes in this file, here and elsewhere use
> > 		bootph-all
> 
> Okay. I will switch to bootph-all

Is'nt esm configuration just needed during pre-ram?

> 
> > 
> > 
> > > +	};
> > >   };
> > > diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j784s4-mcu-wakeup.dtsi
> > > index 4ab4018d3695..a7b5c4cb7d3e 100644
> > > --- a/arch/arm64/boot/dts/ti/k3-j784s4-mcu-wakeup.dtsi
> > > +++ b/arch/arm64/boot/dts/ti/k3-j784s4-mcu-wakeup.dtsi
> > > @@ -700,4 +700,18 @@
> > >   			status = "disabled";
> > >   		};
> > >   	};
> > > +
> > > +	mcu_esm: esm@...00000 {
> > > +		compatible = "ti,j721e-esm";
> > > +		reg = <0x00 0x40800000 0x00 0x1000>;
> > > +		ti,esm-pins = <95>;
> > > +		bootph-pre-ram;
> > > +	};
> > > +
> > > +	wkup_esm: esm@...80000 {
> > > +		compatible = "ti,j721e-esm";
> > > +		reg = <0x00 0x42080000 0x00 0x1000>;
> > > +		ti,esm-pins = <63>;
> > > +		bootph-pre-ram;
> > > +	};
> > >   };
> > 

-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D