linux-kernel - Re: [PATCH 2/3] arm64: dts: ti: k3-j784s4-mcu-wakeup: Add bootph-pre-ram property for SPL nodes

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Date:   Mon, 7 Aug 2023 22:43:53 +0530
From:   Apurva Nandan <a-nandan@...com>
To:     "Kumar, Udit" <u-kumar1@...com>, Nishanth Menon <nm@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Hari Nagalla <hnagalla@...com>
Subject: Re: [PATCH 2/3] arm64: dts: ti: k3-j784s4-mcu-wakeup: Add
 bootph-pre-ram property for SPL nodes


On 07/08/23 10:01, Kumar, Udit wrote:
> Hi Apurva
>
> On 8/6/2023 10:18 PM, Apurva Nandan wrote:
>> Add bootph-pre-ram property for all the nodes used in SPL stage,
>> for syncing it later to u-boot j784s4 dts.
>>
>> Signed-off-by: Apurva Nandan <a-nandan@...com>
>> ---
>>   arch/arm64/boot/dts/ti/k3-j784s4-mcu-wakeup.dtsi | 9 +++++++++
>>   1 file changed, 9 insertions(+)
>>
>> 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 740ee794d7b9..57bf0261c343 100644
>> --- a/arch/arm64/boot/dts/ti/k3-j784s4-mcu-wakeup.dtsi
>> +++ b/arch/arm64/boot/dts/ti/k3-j784s4-mcu-wakeup.dtsi
>> @@ -6,7 +6,9 @@
>>    */
>>     &cbass_mcu_wakeup {
>> +    bootph-pre-ram;
>>       sms: system-controller@...83000 {
>> +        bootph-pre-ram;
>>           compatible = "ti,k2g-sci";
>>           ti,host-id = <12>;
>>   @@ -19,22 +21,26 @@ sms: system-controller@...83000 {
>>           reg = <0x00 0x44083000 0x00 0x1000>;
>>             k3_pds: power-controller {
>> +            bootph-pre-ram;
>>               compatible = "ti,sci-pm-domain";
>>               #power-domain-cells = <2>;
>>           };
>>             k3_clks: clock-controller {
>> +            bootph-pre-ram;
>>               compatible = "ti,k2g-sci-clk";
>>               #clock-cells = <2>;
>>           };
>>             k3_reset: reset-controller {
>> +            bootph-pre-ram;
>>               compatible = "ti,sci-reset";
>>               #reset-cells = <2>;
>>           };
>>       };
>>         chipid@...00014 {
>> +        bootph-pre-ram;
>>           compatible = "ti,am654-chipid";
>>           reg = <0x00 0x43000014 0x00 0x4>;
>>       };
>> @@ -442,6 +448,7 @@ mcu_spi2: spi@...20000 {
>>       };
>
>
> mcu_timer0: timer@...00000 should be part of your list.
Maybe you are referring to mcu_timer1. mcu_timer1 will be a part of 
u-boot.dtsi as we need to edit
the node for removing k3_clks and power-domains properties from it. So 
we should add bootph-pre-ram
there itself in uboot.dtsi as the node will be already there.
>
>>         mcu_navss: bus@...80000 {
>> +        bootph-pre-ram;
>>           compatible = "simple-bus";
>>           #address-cells = <2>;
>>           #size-cells = <2>;
>> @@ -451,6 +458,7 @@ mcu_navss: bus@...80000 {
>>           dma-ranges;
>>             mcu_ringacc: ringacc@...00000 {
>> +            bootph-pre-ram;
>>               compatible = "ti,am654-navss-ringacc";
>>               reg = <0x00 0x2b800000 0x00 0x400000>,
>>                     <0x00 0x2b000000 0x00 0x400000>,
>> @@ -465,6 +473,7 @@ mcu_ringacc: ringacc@...00000 {
>>           };
>>             mcu_udmap: dma-controller@...c0000 {
>> +            bootph-pre-ram;
>>               compatible = "ti,j721e-navss-mcu-udmap";
>>               reg = <0x00 0x285c0000 0x00 0x100>,
>>                     <0x00 0x2a800000 0x00 0x40000>,