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It has >> 1 GB of ram and 4 GB of eMMC storage on board. >> >> Add it to enable boards based on this module >> >> Signed-off-by: Maud Spierings >> --- >>   .../arm64/boot/dts/freescale/imx8mm-tx8m-1610.dtsi | 439 +++++++++++ >> ++++++++++ >>   1 file changed, 439 insertions(+) >> >> diff --git a/arch/arm64/boot/dts/freescale/imx8mm-tx8m-1610.dtsi b/ >> arch/arm64/boot/dts/freescale/imx8mm-tx8m-1610.dtsi >> new file mode 100644 >> index 0000000000000..46d3ad80942cc >> --- /dev/null >> +++ b/arch/arm64/boot/dts/freescale/imx8mm-tx8m-1610.dtsi >> @@ -0,0 +1,439 @@ >> +// SPDX-License-Identifier: (GPL-2.0 OR MIT) >> +/* >> + * Copyright (C) 2021 Lothar Waßmann >> + * 2025 Maud Spierings >> + */ >> + >> +#include "imx8mm.dtsi" >> + > > // snip > >> +    pmic: pmic@4b { >> +        compatible = "rohm,bd71847"; >> +        reg = <0x4b>; >> +        interrupt-parent = <&gpio1>; >> +        interrupts = <3 IRQ_TYPE_LEVEL_LOW>; >> +        pinctrl-0 = <&pinctrl_pmic>; >> +        pinctrl-names = "default"; >> +        rohm,reset-snvs-powered; >> + >> +        regulators { >> +            reg_vdd_soc: BUCK1 { >> +                regulator-always-on; >> +                regulator-boot-on; >> +                regulator-max-microvolt = <900000>; >> +                regulator-min-microvolt = <780000>; >> +                regulator-name = "buck1"; >> +                regulator-ramp-delay = <1250>; >> +            }; >> + >> +            reg_vdd_arm: BUCK2 { >> +                regulator-always-on; >> +                regulator-boot-on; >> +                regulator-max-microvolt = <950000>; >> +                regulator-min-microvolt = <805000>; >> +                regulator-name = "buck2"; >> +                regulator-ramp-delay = <1250>; >> +                rohm,dvs-run-voltage = <950000>; >> +                rohm,dvs-idle-voltage = <810000>; >> +            }; >> + >> +            reg_vdd_dram: BUCK3 { >> +                regulator-always-on; >> +                regulator-boot-on; >> +                regulator-max-microvolt = <900000>; >> +                regulator-min-microvolt = <805000>; >> +                regulator-name = "buck3"; >> +            }; >> + >> +            reg_vdd_3v3: BUCK4 { >> +                regulator-always-on; >> +                regulator-boot-on; >> +                regulator-max-microvolt = <3300000>; >> +                regulator-min-microvolt = <3300000>; >> +                regulator-name = "buck4"; >> +            }; >> + >> +            reg_vdd_1v8: BUCK5 { >> +                regulator-always-on; >> +                regulator-boot-on; >> +                regulator-max-microvolt = <1950000>; >> +                regulator-min-microvolt = <1700000>; >> +                regulator-name = "buck5"; >> +            }; >> + >> +            BUCK6 { >> +                regulator-always-on; >> +                regulator-boot-on; >> +                /* >> +                 * The default output voltage is 1.1V, bumped >> +                 * to 1.35V in HW by a 499R/2.2K voltage divider in the >> +                 * feedback path. >> +                 */ > > Could/Should this be described using the: > 'rohm,feedback-pull-up-r1-ohms' and > 'rohm,feedback-pull-up-r2-ohms'? If I understand the comment correctly, > that might allow the driver to be able to use correctly scaled voltages. > > https://elixir.bootlin.com/linux/v6.18-rc1/source/Documentation/ > devicetree/bindings/regulator/rohm,bd71837-regulator.yaml#L108 > Ah I didn't know those existed, should've checked the bindings in more detail, thanks for the hint! I will have to investigate this carefully, since I don't have access to the actual design of the COM, so I don't know exactly what is there. Kind regards, Maud