[PATCH 0/2] Reconfigure 1.4GHz in AM62 PHYCORE SoM

[PATCH 0/2] Reconfigure 1.4GHz in AM62 PHYCORE SoM

[Garrett Giordano]

This patch set moves our 1.4GHz opp table definition out of our overlay
and into our som dtsi. This change goes along with our updated PMIC, which
is now configured to output 0.85v by default.

We drop the overlay as it is no longer needed.

Garrett Giordano (2):
  arm64: dts: ti: am62-phycore-som: Increase cpu frequency to 1.4 GHz
  arm64: dts: ti: Remove k3-am625-phyboard-lyra-1-4-ghz-opp overlay

 .../boot/dts/ti/k3-am62-phycore-som.dtsi      | 11 ++++++++--
 .../k3-am625-phyboard-lyra-1-4-ghz-opp.dtso   | 20 -------------------
 2 files changed, 9 insertions(+), 22 deletions(-)
 delete mode 100644 arch/arm64/boot/dts/ti/k3-am625-phyboard-lyra-1-4-ghz-opp.dtso

--
2.25.1

[PATCH 1/2] arm64: dts: ti: am62-phycore-som: Increase cpu frequency to 1.4 GHz

[Garrett Giordano]

The am625 is capable of running at 1.4 GHz when VDD_CORE is increased
from 0.75V to 0.85V. Here we add a 1.4 GHz node to the a53_opp_table and
increase the VDD_CORE voltage accordingly.

Signed-off-by: Garrett Giordano <ggiordano@phytec.com>
---
 arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
index ac8959f3d953..8acbd4facf37 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
@@ -205,6 +205,13 @@ AM62X_IOPAD(0x01f4, PIN_INPUT, 0) /* (D16) EXTINTn */
 	};
 };
 
+&a53_opp_table {
+	opp-1400000000 {
+		opp-hz = /bits/ 64 <1400000000>;
+		opp-supported-hw = <0x01 0x0004>;
+	};
+};
+
 &mcu_m4fss {
 	mboxes = <&mailbox0_cluster0 &mbox_m4_0>;
 	memory-region = <&mcu_m4fss_dma_memory_region>,
@@ -265,8 +272,8 @@ pmic@30 {
 		regulators {
 			vdd_core: buck1 {
 				regulator-name = "VDD_CORE";
-				regulator-min-microvolt = <750000>;
-				regulator-max-microvolt = <750000>;
+				regulator-min-microvolt = <850000>;
+				regulator-max-microvolt = <850000>;
 				regulator-boot-on;
 				regulator-always-on;
 			};
-- 
2.25.1

Re: [PATCH 1/2] arm64: dts: ti: am62-phycore-som: Increase cpu frequency to 1.4 GHz

[Nishanth Menon]

On 10:56-20240913, Garrett Giordano wrote:
> The am625 is capable of running at 1.4 GHz when VDD_CORE is increased
> from 0.75V to 0.85V. Here we add a 1.4 GHz node to the a53_opp_table and
> increase the VDD_CORE voltage accordingly.

The entire argument in introducing the 1.4Ghz overlay seems to have been
to let users have the choice. What has changed since then?

Ref: commit 7a5775a3da906dab059b8de60a2b88f6016cb4b8

btw, instead of putting a patch to delete the dtso, you should
probably consider a revert patch instead.

> 
> Signed-off-by: Garrett Giordano <ggiordano@phytec.com>
> ---
>  arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi | 11 +++++++++--
>  1 file changed, 9 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
> index ac8959f3d953..8acbd4facf37 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
> @@ -205,6 +205,13 @@ AM62X_IOPAD(0x01f4, PIN_INPUT, 0) /* (D16) EXTINTn */
>  	};
>  };
>  
> +&a53_opp_table {
> +	opp-1400000000 {
> +		opp-hz = /bits/ 64 <1400000000>;
> +		opp-supported-hw = <0x01 0x0004>;
> +	};
> +};
> +
>  &mcu_m4fss {
>  	mboxes = <&mailbox0_cluster0 &mbox_m4_0>;
>  	memory-region = <&mcu_m4fss_dma_memory_region>,
> @@ -265,8 +272,8 @@ pmic@30 {
>  		regulators {
>  			vdd_core: buck1 {
>  				regulator-name = "VDD_CORE";
> -				regulator-min-microvolt = <750000>;
> -				regulator-max-microvolt = <750000>;
> +				regulator-min-microvolt = <850000>;
> +				regulator-max-microvolt = <850000>;
>  				regulator-boot-on;
>  				regulator-always-on;
>  			};
> -- 
> 2.25.1
> 


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

Re: [PATCH 1/2] arm64: dts: ti: am62-phycore-som: Increase cpu frequency to 1.4 GHz

[Garrett Giordano]

Hey Nishanth,

On 9/13/24 11:09, Nishanth Menon wrote:
> On 10:56-20240913, Garrett Giordano wrote:
>> The am625 is capable of running at 1.4 GHz when VDD_CORE is increased
>> from 0.75V to 0.85V. Here we add a 1.4 GHz node to the a53_opp_table and
>> increase the VDD_CORE voltage accordingly.
> The entire argument in introducing the 1.4Ghz overlay seems to have been
> to let users have the choice. What has changed since then?

I talked with the team and we came back with the following:

- Our default PMIC configuration changed for 850000 uV / 1.4 GHz operations

- All available users will receive a PCN on update with instructions 
towards 850000 uV / 1.4 GHz operations

These changes make this overlay obsolete.

>
> Ref: commit 7a5775a3da906dab059b8de60a2b88f6016cb4b8
>
> btw, instead of putting a patch to delete the dtso, you should
> probably consider a revert patch instead.

Thank you, I will send a v2 Monday reverting this patch instead. This 
will also address the Makefile edits.

Regards,

Garrett

>> Signed-off-by: Garrett Giordano <ggiordano@phytec.com>
>> ---
>>   arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi | 11 +++++++++--
>>   1 file changed, 9 insertions(+), 2 deletions(-)
>>
>> diff --git a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
>> index ac8959f3d953..8acbd4facf37 100644
>> --- a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
>> +++ b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
>> @@ -205,6 +205,13 @@ AM62X_IOPAD(0x01f4, PIN_INPUT, 0) /* (D16) EXTINTn */
>>   	};
>>   };
>>   
>> +&a53_opp_table {
>> +	opp-1400000000 {
>> +		opp-hz = /bits/ 64 <1400000000>;
>> +		opp-supported-hw = <0x01 0x0004>;
>> +	};
>> +};
>> +
>>   &mcu_m4fss {
>>   	mboxes = <&mailbox0_cluster0 &mbox_m4_0>;
>>   	memory-region = <&mcu_m4fss_dma_memory_region>,
>> @@ -265,8 +272,8 @@ pmic@30 {
>>   		regulators {
>>   			vdd_core: buck1 {
>>   				regulator-name = "VDD_CORE";
>> -				regulator-min-microvolt = <750000>;
>> -				regulator-max-microvolt = <750000>;
>> +				regulator-min-microvolt = <850000>;
>> +				regulator-max-microvolt = <850000>;
>>   				regulator-boot-on;
>>   				regulator-always-on;
>>   			};
>> -- 
>> 2.25.1
>>
>

[PATCH 2/2] arm64: dts: ti: Remove k3-am625-phyboard-lyra-1-4-ghz-opp overlay

[Garrett Giordano]

Remove the k3-am625-phyboard-lyra-1-4-ghz-opp overlay. We now
configure the a53_opp_table to include a 1.4 GHz node and set our
VDD_CORE to 0.85v in the k3-am62-phycore-som.dtsi. This change is to
match our PMIC which is now set to output 0.85v by default.

Signed-off-by: Garrett Giordano <ggiordano@phytec.com>
---
 .../k3-am625-phyboard-lyra-1-4-ghz-opp.dtso   | 20 -------------------
 1 file changed, 20 deletions(-)
 delete mode 100644 arch/arm64/boot/dts/ti/k3-am625-phyboard-lyra-1-4-ghz-opp.dtso

diff --git a/arch/arm64/boot/dts/ti/k3-am625-phyboard-lyra-1-4-ghz-opp.dtso b/arch/arm64/boot/dts/ti/k3-am625-phyboard-lyra-1-4-ghz-opp.dtso
deleted file mode 100644
index 6ec6d57ec49c..000000000000
--- a/arch/arm64/boot/dts/ti/k3-am625-phyboard-lyra-1-4-ghz-opp.dtso
+++ /dev/null
@@ -1,20 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only OR MIT
-/*
- * Copyright (C) 2024 PHYTEC America LLC
- * Author: Nathan Morrisson <nmorrisson@phytec.com>
- */
-
-/dts-v1/;
-/plugin/;
-
-&vdd_core {
-	regulator-min-microvolt = <850000>;
-	regulator-max-microvolt = <850000>;
-};
-
-&a53_opp_table {
-	opp-1400000000 {
-		opp-hz = /bits/ 64 <1400000000>;
-		opp-supported-hw = <0x01 0x0004>;
-	};
-};
-- 
2.25.1

Re: [PATCH 2/2] arm64: dts: ti: Remove k3-am625-phyboard-lyra-1-4-ghz-opp overlay

[Nishanth Menon]

On 10:56-20240913, Garrett Giordano wrote:
> Remove the k3-am625-phyboard-lyra-1-4-ghz-opp overlay. We now
> configure the a53_opp_table to include a 1.4 GHz node and set our
> VDD_CORE to 0.85v in the k3-am62-phycore-som.dtsi. This change is to
> match our PMIC which is now set to output 0.85v by default.
> 
> Signed-off-by: Garrett Giordano <ggiordano@phytec.com>
> ---
>  .../k3-am625-phyboard-lyra-1-4-ghz-opp.dtso   | 20 -------------------
>  1 file changed, 20 deletions(-)
>  delete mode 100644 arch/arm64/boot/dts/ti/k3-am625-phyboard-lyra-1-4-ghz-opp.dtso
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am625-phyboard-lyra-1-4-ghz-opp.dtso b/arch/arm64/boot/dts/ti/k3-am625-phyboard-lyra-1-4-ghz-opp.dtso
> deleted file mode 100644
> index 6ec6d57ec49c..000000000000
> --- a/arch/arm64/boot/dts/ti/k3-am625-phyboard-lyra-1-4-ghz-opp.dtso
> +++ /dev/null
> @@ -1,20 +0,0 @@
> -// SPDX-License-Identifier: GPL-2.0-only OR MIT
> -/*
> - * Copyright (C) 2024 PHYTEC America LLC
> - * Author: Nathan Morrisson <nmorrisson@phytec.com>
> - */
> -
> -/dts-v1/;
> -/plugin/;
> -
> -&vdd_core {
> -	regulator-min-microvolt = <850000>;
> -	regulator-max-microvolt = <850000>;
> -};
> -
> -&a53_opp_table {
> -	opp-1400000000 {
> -		opp-hz = /bits/ 64 <1400000000>;
> -		opp-supported-hw = <0x01 0x0004>;
> -	};
> -};
> -- 
> 2.25.1
> 

Did you build test this? Reason I ask is because you might have missed
the Makefile edits needed?

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