u-boot/arch/arm/dts/stm32f769-disco-u-boot.dtsi

// SPDX-License-Identifier: GPL-2.0+

#include <stm32f7-u-boot.dtsi>
/{
	chosen {
		bootargs = "root=/dev/ram rdinit=/linuxrc";
	};

	aliases {
		/* Aliases for gpios so as to use sequence */
		gpio0 = &gpioa;
		gpio1 = &gpiob;
		gpio2 = &gpioc;
		gpio3 = &gpiod;
		gpio4 = &gpioe;
		gpio5 = &gpiof;
		gpio6 = &gpiog;
		gpio7 = &gpioh;
		gpio8 = &gpioi;
		gpio9 = &gpioj;
		gpio10 = &gpiok;
		mmc0 = &sdio2;
		spi0 = &qspi;
	};

	button1 {
		compatible = "st,button1";
		button-gpio = <&gpioa 0 0>;
	};

	led1 {
		compatible = "st,led1";
		led-gpio = <&gpioj 5 0>;
	};
};

&fmc {
	/* Memory configuration from sdram datasheet MT48LC_4M32_B2B5-6A */
	bank1: bank@0 {
		u-boot,dm-pre-reloc;
		st,sdram-control = /bits/ 8 <NO_COL_8
					     NO_ROW_12
					     MWIDTH_32
					     BANKS_4
					     CAS_3
					     SDCLK_2
					     RD_BURST_EN
					     RD_PIPE_DL_0>;
		st,sdram-timing = /bits/ 8 <TMRD_2
					    TXSR_6
					    TRAS_4
					    TRC_6
					    TWR_2
					    TRP_2
					    TRCD_2>;
		/* refcount = (64msec/total_row_sdram)*freq - 20 */
		st,sdram-refcount = < 1542 >;
	};
};

&pinctrl {
	ethernet_mii: mii@0 {
		pins {
			pinmux = <STM32_PINMUX('G',13, AF11)>, /* ETH_RMII_TXD0 */
				 <STM32_PINMUX('G',14, AF11)>, /* ETH_RMII_TXD1 */
				 <STM32_PINMUX('G',11, AF11)>, /* ETH_RMII_TX_EN */
				 <STM32_PINMUX('A', 2, AF11)>, /* ETH_MDIO */
				 <STM32_PINMUX('C', 1, AF11)>, /* ETH_MDC */
				 <STM32_PINMUX('A', 1, AF11)>, /* ETH_RMII_REF_CLK */
				 <STM32_PINMUX('A', 7, AF11)>, /* ETH_RMII_CRS_DV */
				 <STM32_PINMUX('C', 4, AF11)>, /* ETH_RMII_RXD0 */
				 <STM32_PINMUX('C', 5, AF11)>; /* ETH_RMII_RXD1 */
			slew-rate = <2>;
		};
	};

	fmc_pins: fmc@0 {
		pins {
			pinmux = <STM32_PINMUX('I',10, AF12)>, /* D31 */
				 <STM32_PINMUX('I', 9, AF12)>, /* D30 */
				 <STM32_PINMUX('I', 7, AF12)>, /* D29 */
				 <STM32_PINMUX('I', 6, AF12)>, /* D28 */
				 <STM32_PINMUX('I', 3, AF12)>, /* D27 */
				 <STM32_PINMUX('I', 2, AF12)>, /* D26 */
				 <STM32_PINMUX('I', 1, AF12)>, /* D25 */
				 <STM32_PINMUX('I', 0, AF12)>, /* D24 */
				 <STM32_PINMUX('H',15, AF12)>, /* D23 */
				 <STM32_PINMUX('H',14, AF12)>, /* D22 */
				 <STM32_PINMUX('H',13, AF12)>, /* D21 */
				 <STM32_PINMUX('H',12, AF12)>, /* D20 */
				 <STM32_PINMUX('H',11, AF12)>, /* D19 */
				 <STM32_PINMUX('H',10, AF12)>, /* D18 */
				 <STM32_PINMUX('H', 9, AF12)>, /* D17 */
				 <STM32_PINMUX('H', 8, AF12)>, /* D16 */

				 <STM32_PINMUX('D',10, AF12)>, /* D15 */
				 <STM32_PINMUX('D', 9, AF12)>, /* D14 */
				 <STM32_PINMUX('D', 8, AF12)>, /* D13 */
				 <STM32_PINMUX('E',15, AF12)>, /* D12 */
				 <STM32_PINMUX('E',14, AF12)>, /* D11 */
				 <STM32_PINMUX('E',13, AF12)>, /* D10 */
				 <STM32_PINMUX('E',12, AF12)>, /* D9 */
				 <STM32_PINMUX('E',11, AF12)>, /* D8 */
				 <STM32_PINMUX('E',10, AF12)>, /* D7 */
				 <STM32_PINMUX('E', 9, AF12)>, /* D6 */
				 <STM32_PINMUX('E', 8, AF12)>, /* D5 */
				 <STM32_PINMUX('E', 7, AF12)>, /* D4 */
				 <STM32_PINMUX('D', 1, AF12)>, /* D3 */
				 <STM32_PINMUX('D', 0, AF12)>, /* D2 */
				 <STM32_PINMUX('D',15, AF12)>, /* D1 */
				 <STM32_PINMUX('D',14, AF12)>, /* D0 */

				 <STM32_PINMUX('I', 5, AF12)>, /* NBL3 */
				 <STM32_PINMUX('I', 4, AF12)>, /* NBL2 */
				 <STM32_PINMUX('E', 1, AF12)>, /* NBL1 */
				 <STM32_PINMUX('E', 0, AF12)>, /* NBL0 */

				 <STM32_PINMUX('G', 5, AF12)>, /* BA1 */
				 <STM32_PINMUX('G', 4, AF12)>, /* BA0 */

				 <STM32_PINMUX('G', 1, AF12)>, /* A11 */
				 <STM32_PINMUX('G', 0, AF12)>, /* A10 */
				 <STM32_PINMUX('F',15, AF12)>, /* A9 */
				 <STM32_PINMUX('F',14, AF12)>, /* A8 */
				 <STM32_PINMUX('F',13, AF12)>, /* A7 */
				 <STM32_PINMUX('F',12, AF12)>, /* A6 */
				 <STM32_PINMUX('F', 5, AF12)>, /* A5 */
				 <STM32_PINMUX('F', 4, AF12)>, /* A4 */
				 <STM32_PINMUX('F', 3, AF12)>, /* A3 */
				 <STM32_PINMUX('F', 2, AF12)>, /* A2 */
				 <STM32_PINMUX('F', 1, AF12)>, /* A1 */
				 <STM32_PINMUX('F', 0, AF12)>, /* A0 */

				 <STM32_PINMUX('H', 3, AF12)>, /* SDNE0 */
				 <STM32_PINMUX('H', 5, AF12)>, /* SDNWE */
				 <STM32_PINMUX('F',11, AF12)>, /* SDNRAS */
				 <STM32_PINMUX('G',15, AF12)>, /* SDNCAS */
				 <STM32_PINMUX('H', 2, AF12)>, /* SDCKE0 */
				 <STM32_PINMUX('G', 8, AF12)>; /* SDCLK> */
			slew-rate = <2>;
		};
	};

	qspi_pins: qspi@0 {
		pins {
			pinmux = <STM32_PINMUX('B', 2, AF9)>, /* CLK */
				 <STM32_PINMUX('B', 6, AF10)>, /* BK1_NCS */
				 <STM32_PINMUX('C', 9, AF9)>, /* BK1_IO0 */
				 <STM32_PINMUX('C',10, AF9)>, /* BK1_IO1 */
				 <STM32_PINMUX('D',13, AF9)>, /* BK1_IO3 */
				 <STM32_PINMUX('E', 2, AF9)>; /* BK1_IO2 */
			slew-rate = <2>;
		};
	};

	usart1_pins_a: usart1@0	{
		u-boot,dm-pre-reloc;
		pins1 {
			u-boot,dm-pre-reloc;
		};
		pins2 {
			u-boot,dm-pre-reloc;
		};
	};
};

&qspi {
	reg = <0xA0001000 0x1000>, <0x90000000 0x4000000>;
	flash0: mx66l51235l {
		#address-cells = <1>;
		#size-cells = <1>;
		compatible = "jedec,spi-nor";
		spi-max-frequency = <108000000>;
		spi-tx-bus-width = <4>;
		spi-rx-bus-width = <4>;
		reg = <0>;
	};
};