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arm64: dts: ti: verdin-am62: Set VDD CORE minimum voltage to 0.75V

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Set VDD_CORE minimum voltage to 0.75V, TI AM62 can run at either 0.75V
or 0.85V depending on the actual speed grade and on the maximum
configured speed (1.4GHz frequency requires 0.85V).

The actual value is programmed into the PMIC EEPROM during manufacturing
(according to the SOC speed grade) and this ensure that both the voltage
values are valid and therefore the OS will not overwrite the value
programmed into the PMIC.

Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20240213155622.18309-1-francesco@dolcini.it
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
This commit is contained in:
Francesco Dolcini 2024-02-13 16:56:22 +01:00 committed by Vignesh Raghavendra
parent ce27f7f9e3
commit c186e85c72
1 changed files with 1 additions and 1 deletions
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2
arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
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@ -1146,7 +1146,7 @@ reg_vdd_core: buck1 {
regulator-always-on;
regulator-boot-on;
regulator-max-microvolt = <850000>;
regulator-min-microvolt = <850000>;
regulator-min-microvolt = <750000>;
regulator-name = "+VDD_CORE (PMIC BUCK1)";
};