The core and vdd PMIC buck regulators were misconfigured, which caused instability of the board and malfunction of high-speed interfaces, like the RGMII. Furthermore, the vtt_ddr was also wrong. Configure the PMIC correctly to repair these problems.
Signed-off-by: Marek Vasut marex@denx.de Cc: Patrick Delaunay patrick.delaunay@st.com Cc: Patrice Chotard patrice.chotard@st.com --- arch/arm/dts/stm32mp157a-avenger96.dts | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/arch/arm/dts/stm32mp157a-avenger96.dts b/arch/arm/dts/stm32mp157a-avenger96.dts index b6c984171a..8e36df8787 100644 --- a/arch/arm/dts/stm32mp157a-avenger96.dts +++ b/arch/arm/dts/stm32mp157a-avenger96.dts @@ -153,7 +153,7 @@
vddcore: buck1 { regulator-name = "vddcore"; - regulator-min-microvolt = <1200000>; + regulator-min-microvolt = <800000>; regulator-max-microvolt = <1350000>; regulator-always-on; regulator-initial-mode = <0>; @@ -171,8 +171,8 @@
vdd: buck3 { regulator-name = "vdd"; - regulator-min-microvolt = <3300000>; - regulator-max-microvolt = <3300000>; + regulator-min-microvolt = <2500000>; + regulator-max-microvolt = <2500000>; regulator-always-on; st,mask_reset; regulator-initial-mode = <0>; @@ -206,8 +206,8 @@
vtt_ddr: ldo3 { regulator-name = "vtt_ddr"; - regulator-min-microvolt = <500000>; - regulator-max-microvolt = <750000>; + regulator-min-microvolt = <0>; + regulator-max-microvolt = <1000000>; regulator-always-on; regulator-over-current-protection; }; @@ -254,6 +254,7 @@ regulator-name = "vbus_otg"; interrupts = <IT_OCP_OTG 0>; interrupt-parent = <&pmic>; + regulator-active-discharge = <1>; };
vbus_sw: pwr_sw2 {