u-boot-brain/arch/arm/dts/stm32f7-u-boot.dtsi

&pinctrl {
	usart1_pins_a: usart1@0	{
		u-boot,dm-pre-reloc;
		pins1 {
			u-boot,dm-pre-reloc;
		};
		pins2 {
			u-boot,dm-pre-reloc;
		};
	};
	fmc_pins: fmc@0 {
		u-boot,dm-pre-reloc;
		pins
		{
		 u-boot,dm-pre-reloc;
		};
	};
};

&fmc {
	bank1: bank@0 {
		 u-boot,dm-pre-reloc;
	};
};