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ARM: dts: stm32: Repair PMIC configuration on AV96

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The core and vdd PMIC buck regulators were misconfigured, which caused
instability of the board and malfunction of high-speed interfaces, like
the RGMII. Configure the PMIC correctly to repair these problems. Also,
model the missing Enpirion EP53A8LQI on the DHCOR SoM as a fixed regulator.

Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: Patrick Delaunay <patrick.delaunay@st.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
This commit is contained in:
Marek Vasut 2020-03-31 19:51:34 +02:00 committed by Patrick Delaunay
parent 4c8e4c6152
commit 2f3c4b8a0f
1 changed files with 16 additions and 4 deletions
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20
arch/arm/dts/stm32mp157a-avenger96.dts
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@ -92,6 +92,17 @@
states = <1800000 0x1>,
<2900000 0x0>;
};
/* Enpirion EP3A8LQI U2 on the DHCOR */
vdd_io: regulator-buck-io {
compatible = "regulator-fixed";
regulator-name = "buck-io";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
regulator-boot-on;
vin-supply = <&vdd>;
};
};
&ethernet0 {
@ -168,7 +179,7 @@
vddcore: buck1 {
regulator-name = "vddcore";
regulator-min-microvolt = <1200000>;
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <1350000>;
regulator-always-on;
regulator-initial-mode = <0>;
@ -186,8 +197,8 @@
vdd: buck3 {
regulator-name = "vdd";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-min-microvolt = <2900000>;
regulator-max-microvolt = <2900000>;
regulator-always-on;
st,mask_reset;
regulator-initial-mode = <0>;
@ -269,6 +280,7 @@
regulator-name = "vbus_otg";
interrupts = <IT_OCP_OTG 0>;
interrupt-parent = <&pmic>;
regulator-active-discharge = <1>;
};
vbus_sw: pwr_sw2 {
@ -305,7 +317,7 @@
};
&pwr_regulators {
vdd-supply = <&vdd>;
vdd-supply = <&vdd_io>;
vdd_3v3_usbfs-supply = <&vdd_usb>;
};