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From: Adam Ford <aford173@gmail.com>
To: linux-arm-kernel@lists.infradead.org
Cc: aford@beaconembedded.com, Adam Ford <aford173@gmail.com>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>,
	NXP Linux Team <linux-imx@nxp.com>,
	Frieder Schrempf <frieder.schrempf@kontron.de>,
	Lucas Stach <l.stach@pengutronix.de>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 2/3] arm64: dts: imx8mm: Add optional overdrive DTSI
Date: Tue, 28 Nov 2023 14:02:17 -0600	[thread overview]
Message-ID: <20231128200219.226038-2-aford173@gmail.com> (raw)
In-Reply-To: <20231128200219.226038-1-aford173@gmail.com>

For boards who run their SoC at a higher voltage than nominal,
the boards can run several clocks at an overdrive rate for
better performance.  Add an optional DTSI file which can be
included by various boards to run in overdrive mode.

This raises the GPU PLL to 1000MHz, and the VPU PLL to
700MHz while moving VPU_G1 and VPU_H1 to the SYS_PLL3_OUT
which runs at 750MHz.

Signed-off-by: Adam Ford <aford173@gmail.com>

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-overdrive.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-overdrive.dtsi
new file mode 100644
index 000000000000..b31436b5e9b7
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mm-overdrive.dtsi
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+&gpu_2d {
+	assigned-clocks = <&clk IMX8MM_CLK_GPU2D_CORE>,
+			  <&clk IMX8MM_GPU_PLL_OUT>;
+	assigned-clock-parents = <&clk IMX8MM_GPU_PLL_OUT>;
+	assigned-clock-rates = <0>, <1000000000>;
+};
+
+&gpu_3d {
+	assigned-clocks = <&clk IMX8MM_CLK_GPU3D_CORE>,
+			  <&clk IMX8MM_GPU_PLL_OUT>;
+	assigned-clock-parents = <&clk IMX8MM_GPU_PLL_OUT>;
+	assigned-clock-rates = <0>, <1000000000>;
+};
+
+&vpu_blk_ctrl {
+	assigned-clocks = <&clk IMX8MM_CLK_VPU_G1>,
+			  <&clk IMX8MM_CLK_VPU_G2>,
+			  <&clk IMX8MM_CLK_VPU_H1>,
+			  <&clk IMX8MM_VPU_PLL_OUT>;
+	assigned-clock-parents = <&clk IMX8MM_SYS_PLL3_OUT>,
+				 <&clk IMX8MM_VPU_PLL_OUT>,
+				 <&clk IMX8MM_SYS_PLL3_OUT>;
+	assigned-clock-rates = <750000000>,
+			       <700000000>,
+			       <750000000>,
+			       <700000000>;
+};
-- 
2.40.1


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WARNING: multiple messages have this Message-ID (diff)
From: Adam Ford <aford173@gmail.com>
To: linux-arm-kernel@lists.infradead.org
Cc: aford@beaconembedded.com, Adam Ford <aford173@gmail.com>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>,
	NXP Linux Team <linux-imx@nxp.com>,
	Frieder Schrempf <frieder.schrempf@kontron.de>,
	Lucas Stach <l.stach@pengutronix.de>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 2/3] arm64: dts: imx8mm: Add optional overdrive DTSI
Date: Tue, 28 Nov 2023 14:02:17 -0600	[thread overview]
Message-ID: <20231128200219.226038-2-aford173@gmail.com> (raw)
In-Reply-To: <20231128200219.226038-1-aford173@gmail.com>

For boards who run their SoC at a higher voltage than nominal,
the boards can run several clocks at an overdrive rate for
better performance.  Add an optional DTSI file which can be
included by various boards to run in overdrive mode.

This raises the GPU PLL to 1000MHz, and the VPU PLL to
700MHz while moving VPU_G1 and VPU_H1 to the SYS_PLL3_OUT
which runs at 750MHz.

Signed-off-by: Adam Ford <aford173@gmail.com>

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-overdrive.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-overdrive.dtsi
new file mode 100644
index 000000000000..b31436b5e9b7
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mm-overdrive.dtsi
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+&gpu_2d {
+	assigned-clocks = <&clk IMX8MM_CLK_GPU2D_CORE>,
+			  <&clk IMX8MM_GPU_PLL_OUT>;
+	assigned-clock-parents = <&clk IMX8MM_GPU_PLL_OUT>;
+	assigned-clock-rates = <0>, <1000000000>;
+};
+
+&gpu_3d {
+	assigned-clocks = <&clk IMX8MM_CLK_GPU3D_CORE>,
+			  <&clk IMX8MM_GPU_PLL_OUT>;
+	assigned-clock-parents = <&clk IMX8MM_GPU_PLL_OUT>;
+	assigned-clock-rates = <0>, <1000000000>;
+};
+
+&vpu_blk_ctrl {
+	assigned-clocks = <&clk IMX8MM_CLK_VPU_G1>,
+			  <&clk IMX8MM_CLK_VPU_G2>,
+			  <&clk IMX8MM_CLK_VPU_H1>,
+			  <&clk IMX8MM_VPU_PLL_OUT>;
+	assigned-clock-parents = <&clk IMX8MM_SYS_PLL3_OUT>,
+				 <&clk IMX8MM_VPU_PLL_OUT>,
+				 <&clk IMX8MM_SYS_PLL3_OUT>;
+	assigned-clock-rates = <750000000>,
+			       <700000000>,
+			       <750000000>,
+			       <700000000>;
+};
-- 
2.40.1


  reply	other threads:[~2023-11-28 20:03 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-28 20:02 [PATCH 1/3] arm64: dts: imx8mm: Reduce GPU to nominal speed Adam Ford
2023-11-28 20:02 ` Adam Ford
2023-11-28 20:02 ` Adam Ford [this message]
2023-11-28 20:02   ` [PATCH 2/3] arm64: dts: imx8mm: Add optional overdrive DTSI Adam Ford
2023-11-28 20:02 ` [PATCH 3/3] arm64: dts: imx8mm-beacon: Enable overdrive mode Adam Ford
2023-11-28 20:02   ` Adam Ford
2023-12-14  2:22 ` [PATCH 1/3] arm64: dts: imx8mm: Reduce GPU to nominal speed Shawn Guo
2023-12-14  2:22   ` Shawn Guo

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