diff options
| author | Marek Vasut <marex@denx.de> | 2020-03-31 19:51:34 +0200 |
|---|---|---|
| committer | Patrick Delaunay <patrick.delaunay@st.com> | 2020-04-01 11:58:00 +0200 |
| commit | 2f3c4b8a0f303edbea9fc112a49e546cf03776b0 (patch) | |
| tree | c567cb840bc8d4d9eb2d9e5fa7cc2a59de0abc69 /arch/arm/dts/stm32mp157a-avenger96.dts | |
| parent | 4c8e4c615280b91b76bb0fec3f6707b84e467267 (diff) | |
ARM: dts: stm32: Repair PMIC configuration on AV96
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>
Diffstat (limited to 'arch/arm/dts/stm32mp157a-avenger96.dts')
| -rw-r--r-- | arch/arm/dts/stm32mp157a-avenger96.dts | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/arch/arm/dts/stm32mp157a-avenger96.dts b/arch/arm/dts/stm32mp157a-avenger96.dts index 27d407a867..1f32395e71 100644 --- a/arch/arm/dts/stm32mp157a-avenger96.dts +++ b/arch/arm/dts/stm32mp157a-avenger96.dts @@ -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>; + }; }; ðernet0 { @@ -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>; }; |