[PATCH 4/7] arm: dts: k3-k721e: Add Main domain ESM support

[Tero Kristo]

On 13/02/2020 12:49, Lokesh Vutla wrote:
> 
> 
> On 13/02/20 3:04 PM, Tero Kristo wrote:
>> Main domain ESM support is needed to configure main domain watchdogs
>> to generate ESM pin events by default. On J7 processor board these
>> propagate to the PMIC to generate a reset when watchdog expires.
>>
>> Signed-off-by: Tero Kristo <t-kristo at ti.com>
>> ---
>>   arch/arm/dts/k3-j721e-common-proc-board-u-boot.dtsi | 4 ++++
>>   arch/arm/dts/k3-j721e-main.dtsi                     | 6 ++++++
>>   arch/arm/dts/k3-j721e.dtsi                          | 1 +
>>   3 files changed, 11 insertions(+)
>>
>> diff --git a/arch/arm/dts/k3-j721e-common-proc-board-u-boot.dtsi b/arch/arm/dts/k3-j721e-common-proc-board-u-boot.dtsi
>> index a3a8193216..158598f5a7 100644
>> --- a/arch/arm/dts/k3-j721e-common-proc-board-u-boot.dtsi
>> +++ b/arch/arm/dts/k3-j721e-common-proc-board-u-boot.dtsi
>> @@ -349,3 +349,7 @@
>>   &exp2 {
>>   	u-boot,dm-spl;
>>   };
>> +
>> +&main_esm {
>> +	u-boot,dm-spl;
>> +};
>> diff --git a/arch/arm/dts/k3-j721e-main.dtsi b/arch/arm/dts/k3-j721e-main.dtsi
>> index 45ac98c47e..ef4282f608 100644
>> --- a/arch/arm/dts/k3-j721e-main.dtsi
>> +++ b/arch/arm/dts/k3-j721e-main.dtsi
>> @@ -532,4 +532,10 @@
>>   		clocks = <&k3_clks 193 0>;
>>   		power-domains = <&k3_pds 193 TI_SCI_PD_EXCLUSIVE>;
>>   	};
>> +
>> +	main_esm: esm at 700000 {
>> +		compatible = "ti,j721e-esm";
>> +		reg = <0x0 0x700000 0x0 0x1000>;
>> +		ti,esm-pins = <344>, <345>;
>> +	};
> 
> This might never be defined in kernel dts. So it will be a problem when syncing
> kernel dts. Can you move this to r5 dts?

Yeah, I can't see this ever going to be defined in kernel dts.

I can move it to r5 file.

-Tero
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