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ARM: dts: imx7ulp: Add CPU clock and OPP table support

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Add missing CPU clock definitions and operating-points-v2 table for the
Cortex-A7 on i.MX7ULP to enable proper CPU frequency scaling and
integration with the cpufreq/OPP frameworks.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
This commit is contained in:
Peng Fan 2026-03-02 23:07:42 +08:00 committed by Frank Li
parent 137c291faa
commit d7a3aa262f
1 changed files with 28 additions and 0 deletions
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28
arch/arm/boot/dts/nxp/imx/imx7ulp.dtsi
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@ -41,6 +41,34 @@ cpu0: cpu@f00 {
compatible = "arm,cortex-a7";
device_type = "cpu";
reg = <0xf00>;
clocks = <&smc1 IMX7ULP_CLK_ARM>,
<&scg1 IMX7ULP_CLK_CORE>,
<&scg1 IMX7ULP_CLK_SYS_SEL>,
<&scg1 IMX7ULP_CLK_HSRUN_CORE>,
<&scg1 IMX7ULP_CLK_HSRUN_SYS_SEL>,
<&scg1 IMX7ULP_CLK_FIRC>;
clock-names = "arm", "core", "scs_sel",
"hsrun_core", "hsrun_scs_sel",
"firc";
operating-points-v2 = <&cpu0_opp_table>;
};
};
cpu0_opp_table: opp-table {
compatible = "operating-points-v2";
opp-shared;
opp-500210000 {
opp-hz = /bits/ 64 <500210000>;
opp-microvolt = <1025000>;
clock-latency-ns = <150000>;
opp-suspend;
};
opp-720000000 {
opp-hz = /bits/ 64 <720000000>;
opp-microvolt = <1125000>;
clock-latency-ns = <150000>;
};
};