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arm64: dts: imx8mn: Enable Overdrive mode

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The i.MX8M Nano supports and overdrive mode if the SoC is given
the proper voltage.  Add imx8mn-overdrive.dtsi file which can
be included by boards who support the voltage necessary to handle
the faster clocks.  This increases the GPU clocks from 400MHz to
600MHz.

Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Adam Ford 2023-11-28 15:18:31 -06:00 committed by Shawn Guo
parent 6557e92e23
commit dc1c6cf226
1 changed files with 18 additions and 0 deletions
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18
arch/arm64/boot/dts/freescale/imx8mn-overdrive.dtsi Normal file
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// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
&gpu {
assigned-clocks = <&clk IMX8MN_CLK_GPU_CORE>,
<&clk IMX8MN_CLK_GPU_SHADER>,
<&clk IMX8MN_CLK_GPU_AXI>,
<&clk IMX8MN_CLK_GPU_AHB>,
<&clk IMX8MN_GPU_PLL>;
assigned-clock-parents = <&clk IMX8MN_GPU_PLL_OUT>,
<&clk IMX8MN_GPU_PLL_OUT>,
<&clk IMX8MN_SYS_PLL1_800M>,
<&clk IMX8MN_SYS_PLL1_800M>;
assigned-clock-rates = <600000000>,
<600000000>,
<800000000>,
<400000000>,
<1200000000>;
};