diff mbox series

[PATCH/RFC,14/14] arm64: dts: renesas: r8a779m3: Add Cortex-A57 2 GHz opp

Message ID 6dbc16b1345913cb42d8824d1c0f7f5be7645cf9.1623315732.git.geert+renesas@glider.be (mailing list archive)
State New
Delegated to: Geert Uytterhoeven
Headers show
Series arm64: renesas: Add support for R Car H3e 2G-and M3e-2G | expand

Commit Message

Geert Uytterhoeven June 10, 2021, 9:37 a.m. UTC
Add a preliminary operating point for running the Cortex-A57 CPU cores
on R-Car M3e-2G at 2 GHz.

The opp-microvolt value depends on a future update of the Electrical
Characteristics for R-Car M3e-2G.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm64/boot/dts/renesas/r8a779m3.dtsi | 9 +++++++++
 1 file changed, 9 insertions(+)

Comments

Yoshihiro Shimoda June 16, 2021, 11:27 a.m. UTC | #1
Hi Geert-san,

> From: Geert Uytterhoeven, Sent: Thursday, June 10, 2021 6:37 PM
> 
> Add a preliminary operating point for running the Cortex-A57 CPU cores
> on R-Car M3e-2G at 2 GHz.
> 
> The opp-microvolt value depends on a future update of the Electrical
> Characteristics for R-Car M3e-2G.
> 
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
> ---
>  arch/arm64/boot/dts/renesas/r8a779m3.dtsi | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/renesas/r8a779m3.dtsi b/arch/arm64/boot/dts/renesas/r8a779m3.dtsi
> index 65bb6188ccf5470a..fa5e8ffdf7343739 100644
> --- a/arch/arm64/boot/dts/renesas/r8a779m3.dtsi
> +++ b/arch/arm64/boot/dts/renesas/r8a779m3.dtsi
> @@ -10,3 +10,12 @@
>  / {
>  	compatible = "renesas,r8a779m3", "renesas,r8a77961";
>  };
> +
> +&cluster0_opp {
> +	opp-2000000000 {
> +		opp-hz = /bits/ 64 <2000000000>;
> +		opp-microvolt = <1020000>;	// FIXME TBC

Like r8a779m1, I heard this is also <960000>.

Best regards,
Yoshihiro Shimoda

> +		clock-latency-ns = <300000>;
> +		turbo-mode;
> +	};
> +};
> --
> 2.25.1
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/renesas/r8a779m3.dtsi b/arch/arm64/boot/dts/renesas/r8a779m3.dtsi
index 65bb6188ccf5470a..fa5e8ffdf7343739 100644
--- a/arch/arm64/boot/dts/renesas/r8a779m3.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779m3.dtsi
@@ -10,3 +10,12 @@ 
 / {
 	compatible = "renesas,r8a779m3", "renesas,r8a77961";
 };
+
+&cluster0_opp {
+	opp-2000000000 {
+		opp-hz = /bits/ 64 <2000000000>;
+		opp-microvolt = <1020000>;	// FIXME TBC
+		clock-latency-ns = <300000>;
+		turbo-mode;
+	};
+};