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[v2,29/29,RFC] arm64: dts: renesas: r8a779m5: Add Cortex-A57 2 GHz opp

Message ID bbfb67c95e0c2bc3312bf46b7a28b6baa452786a.1628766192.git.geert+renesas@glider.be
State New
Headers show
Series arm64: renesas: Add support for more R-Car Gen3e SoCs and boards | expand

Commit Message

Geert Uytterhoeven Aug. 12, 2021, 11:24 a.m. UTC 
Add a preliminary operating point for running the Cortex-A57 CPU cores
on R-Car M3Ne-2G at 2 GHz.

The opp-microvolt value depends on a future update of the Electrical
Characteristics for R-Car M3Ne-2G.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
v2:
  - Change 2 GHz opp from 1020000 µV to 960000 µV, as per informal
    communication.
---
 arch/arm64/boot/dts/renesas/r8a779m5.dtsi | 9 +++++++++
 1 file changed, 9 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/renesas/r8a779m5.dtsi b/arch/arm64/boot/dts/renesas/r8a779m5.dtsi
index f0ef765f6cf87319..5ab9bbdd419be3cd 100644
--- a/arch/arm64/boot/dts/renesas/r8a779m5.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779m5.dtsi
@@ -10,3 +10,12 @@ 
 / {
 	compatible = "renesas,r8a779m5", "renesas,r8a77965";
 };
+
+&cluster0_opp {
+	opp-2000000000 {
+		opp-hz = /bits/ 64 <2000000000>;
+		opp-microvolt = <960000>;	// FIXME TBC
+		clock-latency-ns = <300000>;
+		turbo-mode;
+	};
+};