linux-kernel - Re: [PATCH v6 1/7] arm64: dts: ti: k3-j721s2: Add ESM instances

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Date:   Thu, 5 Oct 2023 06:45:59 +0530
From:   "J, KEERTHY" <j-keerthy@...com>
To:     Vignesh Raghavendra <vigneshr@...com>, <robh+dt@...nel.org>,
        <nm@...com>, <conor+dt@...nel.org>, <kristo@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>
CC:     <u-kumar1@...com>, <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v6 1/7] arm64: dts: ti: k3-j721s2: Add ESM instances



On 10/3/2023 12:20 PM, Vignesh Raghavendra wrote:
> 
> 
> On 27/09/23 08:03, Keerthy wrote:
>> Patch adds the ESM instances for j721s2. 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-j721s2-main.dtsi       |  7 +++++++
>>   arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi | 14 ++++++++++++++
>>   2 files changed, 21 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
>> index 084f8f5b6699..8a717b592238 100644
>> --- a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
>> +++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
>> @@ -1695,4 +1695,11 @@
>>   		dss_ports: ports {
>>   		};
>>   	};
>> +
>> +	main_esm: esm@...000 {
>> +		compatible = "ti,j721e-esm";
>> +		reg = <0x00 0x700000 0x00 0x1000>;
>> +		ti,esm-pins = <688>, <689>;
>> +		bootph-pre-ram;
> 
> 
> Similar to other k3-*.dts here and elsewhere
> 		bootph-all
> 
> 
> Better drop them altogether, and lets have a single patch for the j721s2
> platform to add bootph* flags as necessary.

Okay.

> 
> 
>> +	};
>>   };
>> diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
>> index 2ddad9318554..4b29418a6076 100644
>> --- a/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
>> +++ b/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
>> @@ -655,4 +655,18 @@
>>   		power-domains = <&k3_pds 154 TI_SCI_PD_SHARED>;
>>   		#thermal-sensor-cells = <1>;
>>   	};
>> +
>> +	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;
>> +	};
>>   };
>