fdts/stm32mp157c-lxa-tac.dts

/* SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-3-Clause) */
/*
 * Copyright (C) 2020 STMicroelectronics - All Rights Reserved
 * Copyright (C) 2021 Rouven Czerwinski, Pengutronix
 */

/dts-v1/;

#include "stm32mp157.dtsi"
#include "stm32mp15xc.dtsi"
#include "stm32mp15-ddr3-1x4Gb-1066-binG.dtsi"
#include "stm32mp15xx-osd32.dtsi"
#include "stm32mp15xxac-pinctrl.dtsi"

/ {
	model = "Linux Automation Test Automation Controller (TAC)";
	compatible = "lxa,stm32mp157c-tac", "oct,stm32mp15xx-osd32", "st,stm32mp157";

	aliases {
		mmc1 = &sdmmc2;
		serial0 = &uart4;
	};


	chosen {
		stdout-path = &uart4;
	};

	led-controller-0 {
		compatible = "gpio-leds";

		led-0 {
			label = "tac:green:user1";
			gpios = <&gpiof 10 1>;
			linux,default-trigger = "heartbeat";
		};
	};

	reg_3v3: regulator_3v3 {
		compatible = "regulator-fixed";
		regulator-name = "3V3";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-always-on;
		vin-supply = <&v3v3>;
	};
};

&pinctrl {
	tac_sdmmc2_d47_pins_b: tac-sdmmc2-d47-1 {
		pins {
			pinmux = <STM32_PINMUX('A', 8, AF9)>,  /* SDMMC2_D4 */
				 <STM32_PINMUX('A', 9, AF10)>, /* SDMMC2_D5 */
				 <STM32_PINMUX('C', 6, AF10)>, /* SDMMC2_D6 */
				 <STM32_PINMUX('C', 7, AF10)>; /* SDMMC2_D7 */
			slew-rate = <1>;
			drive-push-pull;
			bias-disable;
		};
	};
};

/* VCO = 624 MHz => P = 208, Q = 48, R = 104 */
&pll3 {
	st,pll = <&pll3_cfg2>;

	pll3_cfg2: pll3-cfg2 {
		st,pll_vco = <&pll3_vco_624Mhz>;
		st,pll_div_pqr = <2 12 5>;
	};
};

/* VCO = 750.0 MHz => P = 125, Q = 75, R = 62.5 */
&pll4 {
	st,pll = <&pll4_cfg2>;

	pll4_cfg2: pll4-cfg2 {
		st,pll_vco = <&pll4_vco_750Mhz>;
		st,pll_div_pqr = <5 9 11>;
	};
};

&rcc {
	/* change parent clocks */
	st,clksrc = <
		CLK_MPU_PLL1P
		CLK_AXI_PLL2P
		CLK_MCU_PLL3P
		CLK_RTC_LSE
		CLK_MCO1_DISABLED
		CLK_MCO2_DISABLED
		CLK_CKPER_HSE
		CLK_FMC_ACLK
		CLK_QSPI_ACLK
		CLK_ETH_PLL4P
		CLK_SDMMC12_PLL3R
		CLK_DSI_DSIPLL
		CLK_STGEN_HSE
		CLK_USBPHY_HSE
		CLK_SPI2S1_PLL3Q
		CLK_SPI2S23_PLL3Q
		CLK_SPI45_HSI
		CLK_SPI6_HSI
		CLK_I2C46_HSI
		CLK_SDMMC3_DISABLED
		CLK_USBO_USBPHY
		CLK_ADC_CKPER
		CLK_CEC_DISABLED
		CLK_I2C12_HSI
		CLK_I2C35_HSI
		CLK_UART1_HSI
		CLK_UART24_HSI
		CLK_UART35_HSI
		CLK_UART6_HSI
		CLK_UART78_HSI
		CLK_SPDIF_DISABLED
		CLK_FDCAN_PLL3Q
		CLK_SAI1_DISABLED
		CLK_SAI2_DISABLED
		CLK_SAI3_DISABLED
		CLK_SAI4_DISABLED
		CLK_RNG1_LSI
		CLK_RNG2_LSI
		CLK_LPTIM1_PCLK1
		CLK_LPTIM23_PCLK3
		CLK_LPTIM45_LSE
	>;

	st,pll_vco {
		pll3_vco_624Mhz: pll3-vco-624Mhz {
			src = <CLK_PLL3_HSE>;
			divmn = <1 51>;
		};

		pll4_vco_750Mhz: pll4-vco-750Mhz {
			src = <CLK_PLL4_HSE>;
			divmn = <3 124>;
		};
	};
};

&sdmmc2 {
	pinctrl-names = "default";
	pinctrl-0 = <&sdmmc2_b4_pins_a &tac_sdmmc2_d47_pins_b>;
	bus-width = <8>;
	mmc-ddr-3_3v;
	no-1-8-v;
	no-sd;
	no-sdio;
	non-removable;
	st,neg-edge;
	vmmc-supply = <&reg_3v3>;
	status = "okay";
};

&uart4 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart4_pins_a>;
	status = "okay";
};