diff options
| author | Marek Vasut <marex@denx.de> | 2020-04-22 12:45:54 +0200 |
|---|---|---|
| committer | Alexandre Torgue <alexandre.torgue@st.com> | 2020-04-29 09:43:53 +0200 |
| commit | dff503ab76b4af30f064d45198e9ff6b35e8655d (patch) | |
| tree | f4f14fab9c7991ee7597b377da09db9ad66213e3 /arch/arm/boot/dts/stm32mp157a-avenger96.dts | |
| parent | ea6318dc5a1d2c4c146d9db92cbef8d9d6619461 (diff) | |
ARM: dts: stm32: Repair PMIC configuration on AV96
The vdd PMIC buck regulator was 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 add missing
Enpirion regulator for the IO voltage into the DT.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
Cc: Patrick Delaunay <patrick.delaunay@st.com>
Cc: linux-stm32@st-md-mailman.stormreply.com
To: linux-arm-kernel@lists.infradead.org
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
Diffstat (limited to 'arch/arm/boot/dts/stm32mp157a-avenger96.dts')
| -rw-r--r-- | arch/arm/boot/dts/stm32mp157a-avenger96.dts | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/arch/arm/boot/dts/stm32mp157a-avenger96.dts b/arch/arm/boot/dts/stm32mp157a-avenger96.dts index aba38950f2e9..380ce148520f 100644 --- a/arch/arm/boot/dts/stm32mp157a-avenger96.dts +++ b/arch/arm/boot/dts/stm32mp157a-avenger96.dts @@ -77,6 +77,17 @@ default-state = "off"; }; }; + + /* 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 { @@ -166,8 +177,8 @@ vdd: buck3 { regulator-name = "vdd"; - regulator-min-microvolt = <3300000>; - regulator-max-microvolt = <3300000>; + regulator-min-microvolt = <2900000>; + regulator-max-microvolt = <2900000>; regulator-always-on; regulator-initial-mode = <0>; regulator-over-current-protection; @@ -245,6 +256,7 @@ regulator-name = "vbus_otg"; interrupts = <IT_OCP_OTG 0>; interrupt-parent = <&pmic>; + regulator-active-discharge = <1>; }; vbus_sw: pwr_sw2 { @@ -275,7 +287,7 @@ }; &pwr_regulators { - vdd-supply = <&vdd>; + vdd-supply = <&vdd_io>; vdd_3v3_usbfs-supply = <&vdd_usb>; }; |