[PATCH v1 2/2] arm64: dts: imx8mn-evk: fix the min/max voltages of the PMIC
From: Michael Walle
Date: Wed Feb 23 2022 - 16:06:34 EST
Use the proper voltages as supported by the board instead of the ones
supported by the PMIC. The voltages were taken from both the schematic
of the 8MNANOLPD4-EVK eval board and the datasheet of the IMX8MN SoC.
Signed-off-by: Michael Walle <michael@xxxxxxxx>
---
Please help review and test this. This was never tested on the actual
8MNANOLPD4-EVK because I don't have that board! Instead it is a
"byproduct" of the development of an devicetree for the 8MNANOD3L-EVK
which is quite similar except for the DDR voltage and the buck1
converter.
arch/arm64/boot/dts/freescale/imx8mn-evk.dts | 34 ++++++++++----------
1 file changed, 17 insertions(+), 17 deletions(-)
diff --git a/arch/arm64/boot/dts/freescale/imx8mn-evk.dts b/arch/arm64/boot/dts/freescale/imx8mn-evk.dts
index eaa06f49aef5..2bb0155ea018 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mn-evk.dts
@@ -42,8 +42,8 @@ pmic: pmic@25 {
regulators {
buck1: BUCK1{
regulator-name = "VDD_ARM_0V9";
- regulator-min-microvolt = <600000>;
- regulator-max-microvolt = <2187500>;
+ regulator-min-microvolt = <850000>;
+ regulator-max-microvolt = <1000000>;
regulator-boot-on;
regulator-always-on;
regulator-ramp-delay = <3125>;
@@ -51,8 +51,8 @@ buck1: BUCK1{
buck2: BUCK2 {
regulator-name = "VDD_SOC";
- regulator-min-microvolt = <600000>;
- regulator-max-microvolt = <2187500>;
+ regulator-min-microvolt = <850000>;
+ regulator-max-microvolt = <950000>;
regulator-boot-on;
regulator-always-on;
regulator-ramp-delay = <3125>;
@@ -62,32 +62,32 @@ buck2: BUCK2 {
buck4: BUCK4{
regulator-name = "VDD_3V3";
- regulator-min-microvolt = <600000>;
- regulator-max-microvolt = <3400000>;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
};
buck5: BUCK5{
regulator-name = "VDD_1V8";
- regulator-min-microvolt = <600000>;
- regulator-max-microvolt = <3400000>;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
regulator-boot-on;
regulator-always-on;
};
buck6: BUCK6 {
regulator-name = "NVCC_DRAM_1V1";
- regulator-min-microvolt = <600000>;
- regulator-max-microvolt = <3400000>;
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
regulator-boot-on;
regulator-always-on;
};
ldo1: LDO1 {
regulator-name = "NVCC_SNVS_1V8";
- regulator-min-microvolt = <1600000>;
- regulator-max-microvolt = <3300000>;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
regulator-boot-on;
regulator-always-on;
};
@@ -95,23 +95,23 @@ ldo1: LDO1 {
ldo2: LDO2 {
regulator-name = "VDD_SNVS_0V8";
regulator-min-microvolt = <800000>;
- regulator-max-microvolt = <1150000>;
+ regulator-max-microvolt = <800000>;
regulator-boot-on;
regulator-always-on;
};
ldo3: LDO3 {
regulator-name = "VDDA_1V8";
- regulator-min-microvolt = <800000>;
- regulator-max-microvolt = <3300000>;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
regulator-boot-on;
regulator-always-on;
};
ldo4: LDO4 {
regulator-name = "VDD_PHY_1V2";
- regulator-min-microvolt = <800000>;
- regulator-max-microvolt = <3300000>;
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
regulator-boot-on;
regulator-always-on;
};
--
2.30.2