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u-boot/arch/arm/dts/imx8mn-var-som.dtsi
Ariel D'Alessandro c4c1ed68c1 imx8mn_var_som: Add support for Variscite VAR-SOM-MX8M-NANO board 
Add support for iMX8MN VAR-SOM-MX8M-NANO board. Enables support for:

- 1GiB DDR4 RAM
- 16 GiB eMMC
- SD card
- Gigabit ethernet
- USBOTG1 peripheral - fastboot

Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@collabora.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
2022-02-05 13:38:39 +01:00

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// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* Copyright 2019 NXP
* Copyright 2019-2020 Variscite Ltd.
* Copyright (C) 2020 Krzysztof Kozlowski <krzk@kernel.org>
*/
#include "imx8mn.dtsi"
/ {
model = "Variscite VAR-SOM-MX8MN module";
compatible = "variscite,var-som-mx8mn", "fsl,imx8mn";
chosen {
stdout-path = &uart4;
};
memory@40000000 {
device_type = "memory";
reg = <0x0 0x40000000 0 0x40000000>;
};
reg_eth_phy: regulator-eth-phy {
compatible = "regulator-fixed";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_reg_eth_phy>;
regulator-name = "eth_phy_pwr";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
gpio = <&gpio2 9 GPIO_ACTIVE_HIGH>;
enable-active-high;
};
};
&A53_0 {
cpu-supply = <&buck2_reg>;
};
&A53_1 {
cpu-supply = <&buck2_reg>;
};
&A53_2 {
cpu-supply = <&buck2_reg>;
};
&A53_3 {
cpu-supply = <&buck2_reg>;
};
&ecspi1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_ecspi1>;
cs-gpios = <&gpio1 14 GPIO_ACTIVE_LOW>,
<&gpio1 0 GPIO_ACTIVE_LOW>;
/delete-property/ dmas;
/delete-property/ dma-names;
status = "okay";
/* Resistive touch controller */
touchscreen@0 {
reg = <0>;
compatible = "ti,ads7846";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_restouch>;
interrupt-parent = <&gpio1>;
interrupts = <3 IRQ_TYPE_EDGE_FALLING>;
spi-max-frequency = <1500000>;
pendown-gpio = <&gpio1 3 GPIO_ACTIVE_LOW>;
ti,x-min = /bits/ 16 <125>;
touchscreen-size-x = /bits/ 16 <4008>;
ti,y-min = /bits/ 16 <282>;
touchscreen-size-y = /bits/ 16 <3864>;
ti,x-plate-ohms = /bits/ 16 <180>;
touchscreen-max-pressure = /bits/ 16 <255>;
touchscreen-average-samples = /bits/ 16 <10>;
ti,debounce-tol = /bits/ 16 <3>;
ti,debounce-rep = /bits/ 16 <1>;
ti,settle-delay-usec = /bits/ 16 <150>;
ti,keep-vref-on;
wakeup-source;
};
};
&fec1 {
pinctrl-names = "default", "sleep";
pinctrl-0 = <&pinctrl_fec1>;
pinctrl-1 = <&pinctrl_fec1_sleep>;
phy-mode = "rgmii";
phy-handle = <&ethphy>;
phy-supply = <&reg_eth_phy>;
phy-reset-gpios = <&gpio1 9 GPIO_ACTIVE_LOW>;
phy-reset-duration = <10>;
fsl,magic-packet;
status = "okay";
mdio {
#address-cells = <1>;
#size-cells = <0>;
ethphy: ethernet-phy@4 {
compatible = "ethernet-phy-ieee802.3-c22";
reg = <4>;
};
};
};
&i2c1 {
clock-frequency = <400000>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c1>;
status = "okay";
pmic@4b {
compatible = "rohm,bd71847";
reg = <0x4b>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pmic>;
interrupt-parent = <&gpio2>;
interrupts = <8 IRQ_TYPE_LEVEL_LOW>;
rohm,reset-snvs-powered;
regulators {
buck1_reg: BUCK1 {
regulator-name = "buck1";
regulator-min-microvolt = <700000>;
regulator-max-microvolt = <1300000>;
regulator-boot-on;
regulator-always-on;
regulator-ramp-delay = <1250>;
};
buck2_reg: BUCK2 {
regulator-name = "buck2";
regulator-min-microvolt = <700000>;
regulator-max-microvolt = <1300000>;
regulator-boot-on;
regulator-always-on;
regulator-ramp-delay = <1250>;
rohm,dvs-run-voltage = <1000000>;
rohm,dvs-idle-voltage = <900000>;
};
buck3_reg: BUCK3 {
regulator-name = "buck3";
regulator-min-microvolt = <700000>;
regulator-max-microvolt = <1350000>;
regulator-boot-on;
regulator-always-on;
};
buck4_reg: BUCK4 {
regulator-name = "buck4";
regulator-min-microvolt = <2600000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
};
buck5_reg: BUCK5 {
regulator-name = "buck5";
regulator-min-microvolt = <1605000>;
regulator-max-microvolt = <1995000>;
regulator-boot-on;
regulator-always-on;
};
buck6_reg: BUCK6 {
regulator-name = "buck6";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <1400000>;
regulator-boot-on;
regulator-always-on;
};
ldo1_reg: LDO1 {
regulator-name = "ldo1";
regulator-min-microvolt = <1600000>;
regulator-max-microvolt = <1900000>;
regulator-boot-on;
regulator-always-on;
};
ldo2_reg: LDO2 {
regulator-name = "ldo2";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <900000>;
regulator-boot-on;
regulator-always-on;
};
ldo3_reg: LDO3 {
regulator-name = "ldo3";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
};
ldo4_reg: LDO4 {
regulator-name = "ldo4";
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
ldo5_reg: LDO5 {
regulator-compatible = "ldo5";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
ldo6_reg: LDO6 {
regulator-name = "ldo6";
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <1800000>;
regulator-boot-on;
regulator-always-on;
};
};
};
};
&i2c3 {
clock-frequency = <400000>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c3>;
status = "okay";
/* TODO: configure audio, as of now just put a placeholder */
wm8904: codec@1a {
compatible = "wlf,wm8904";
reg = <0x1a>;
status = "disabled";
};
};
&snvs_pwrkey {
status = "okay";
};
/* Bluetooth */
&uart2 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart2>;
assigned-clocks = <&clk IMX8MN_CLK_UART2>;
assigned-clock-parents = <&clk IMX8MN_SYS_PLL1_80M>;
uart-has-rtscts;
status = "okay";
};
/* Console */
&uart4 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart4>;
status = "okay";
};
&usbotg1 {
dr_mode = "peripheral";
status = "okay";
};
/* WIFI */
&usdhc1 {
#address-cells = <1>;
#size-cells = <0>;
pinctrl-names = "default", "state_100mhz", "state_200mhz";
pinctrl-0 = <&pinctrl_usdhc1>;
pinctrl-1 = <&pinctrl_usdhc1_100mhz>;
pinctrl-2 = <&pinctrl_usdhc1_200mhz>;
bus-width = <4>;
non-removable;
keep-power-in-suspend;
status = "okay";
brcmf: bcrmf@1 {
reg = <1>;
compatible = "brcm,bcm4329-fmac";
};
};
/* SD */
&usdhc2 {
assigned-clocks = <&clk IMX8MN_CLK_USDHC2>;
assigned-clock-rates = <200000000>;
pinctrl-names = "default", "state_100mhz", "state_200mhz";
pinctrl-0 = <&pinctrl_usdhc2>, <&pinctrl_usdhc2_gpio>;
pinctrl-1 = <&pinctrl_usdhc2_100mhz>, <&pinctrl_usdhc2_gpio>;
pinctrl-2 = <&pinctrl_usdhc2_200mhz>, <&pinctrl_usdhc2_gpio>;
cd-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
bus-width = <4>;
vmmc-supply = <&reg_usdhc2_vmmc>;
status = "okay";
};
/* eMMC */
&usdhc3 {
assigned-clocks = <&clk IMX8MN_CLK_USDHC3_ROOT>;
assigned-clock-rates = <400000000>;
pinctrl-names = "default", "state_100mhz", "state_200mhz";
pinctrl-0 = <&pinctrl_usdhc3>;
pinctrl-1 = <&pinctrl_usdhc3_100mhz>;
pinctrl-2 = <&pinctrl_usdhc3_200mhz>;
bus-width = <8>;
non-removable;
status = "okay";
};
&wdog1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_wdog>;
fsl,ext-reset-output;
status = "okay";
};
&iomuxc {
pinctrl_ecspi1: ecspi1grp {
fsl,pins = <
MX8MN_IOMUXC_ECSPI1_SCLK_ECSPI1_SCLK 0x13
MX8MN_IOMUXC_ECSPI1_MOSI_ECSPI1_MOSI 0x13
MX8MN_IOMUXC_ECSPI1_MISO_ECSPI1_MISO 0x13
MX8MN_IOMUXC_GPIO1_IO14_GPIO1_IO14 0x13
MX8MN_IOMUXC_GPIO1_IO00_GPIO1_IO0 0x13
>;
};
pinctrl_fec1: fec1grp {
fsl,pins = <
MX8MN_IOMUXC_ENET_MDC_ENET1_MDC 0x3
MX8MN_IOMUXC_ENET_MDIO_ENET1_MDIO 0x3
MX8MN_IOMUXC_ENET_TD3_ENET1_RGMII_TD3 0x1f
MX8MN_IOMUXC_ENET_TD2_ENET1_RGMII_TD2 0x1f
MX8MN_IOMUXC_ENET_TD1_ENET1_RGMII_TD1 0x1f
MX8MN_IOMUXC_ENET_TD0_ENET1_RGMII_TD0 0x1f
MX8MN_IOMUXC_ENET_RD3_ENET1_RGMII_RD3 0x91
MX8MN_IOMUXC_ENET_RD2_ENET1_RGMII_RD2 0x91
MX8MN_IOMUXC_ENET_RD1_ENET1_RGMII_RD1 0x91
MX8MN_IOMUXC_ENET_RD0_ENET1_RGMII_RD0 0x91
MX8MN_IOMUXC_ENET_TXC_ENET1_RGMII_TXC 0x1f
MX8MN_IOMUXC_ENET_RXC_ENET1_RGMII_RXC 0x91
MX8MN_IOMUXC_ENET_RX_CTL_ENET1_RGMII_RX_CTL 0x91
MX8MN_IOMUXC_ENET_TX_CTL_ENET1_RGMII_TX_CTL 0x1f
MX8MN_IOMUXC_GPIO1_IO09_GPIO1_IO9 0x19
>;
};
pinctrl_fec1_sleep: fec1sleepgrp {
fsl,pins = <
MX8MN_IOMUXC_ENET_MDC_GPIO1_IO16 0x120
MX8MN_IOMUXC_ENET_MDIO_GPIO1_IO17 0x120
MX8MN_IOMUXC_ENET_TD3_GPIO1_IO18 0x120
MX8MN_IOMUXC_ENET_TD2_GPIO1_IO19 0x120
MX8MN_IOMUXC_ENET_TD1_GPIO1_IO20 0x120
MX8MN_IOMUXC_ENET_TD0_GPIO1_IO21 0x120
MX8MN_IOMUXC_ENET_RD3_GPIO1_IO29 0x120
MX8MN_IOMUXC_ENET_RD2_GPIO1_IO28 0x120
MX8MN_IOMUXC_ENET_RD1_GPIO1_IO27 0x120
MX8MN_IOMUXC_ENET_RD0_GPIO1_IO26 0x120
MX8MN_IOMUXC_ENET_TXC_GPIO1_IO23 0x120
MX8MN_IOMUXC_ENET_RXC_GPIO1_IO25 0x120
MX8MN_IOMUXC_ENET_RX_CTL_GPIO1_IO24 0x120
MX8MN_IOMUXC_ENET_TX_CTL_GPIO1_IO22 0x120
MX8MN_IOMUXC_GPIO1_IO09_GPIO1_IO9 0x120
>;
};
pinctrl_i2c1: i2c1grp {
fsl,pins = <
MX8MN_IOMUXC_I2C1_SCL_I2C1_SCL 0x400001c3
MX8MN_IOMUXC_I2C1_SDA_I2C1_SDA 0x400001c3
>;
};
pinctrl_i2c3: i2c3grp {
fsl,pins = <
MX8MN_IOMUXC_I2C3_SCL_I2C3_SCL 0x400001c3
MX8MN_IOMUXC_I2C3_SDA_I2C3_SDA 0x400001c3
>;
};
pinctrl_pmic: pmicirqgrp {
fsl,pins = <
MX8MN_IOMUXC_SD1_DATA6_GPIO2_IO8 0x141
>;
};
pinctrl_reg_eth_phy: regethphygrp {
fsl,pins = <
MX8MN_IOMUXC_SD1_DATA7_GPIO2_IO9 0x41
>;
};
pinctrl_restouch: restouchgrp {
fsl,pins = <
MX8MN_IOMUXC_GPIO1_IO03_GPIO1_IO3 0x1c0
>;
};
pinctrl_uart2: uart2grp {
fsl,pins = <
MX8MN_IOMUXC_SAI3_TXFS_UART2_DCE_RX 0x140
MX8MN_IOMUXC_SAI3_TXC_UART2_DCE_TX 0x140
MX8MN_IOMUXC_SAI3_RXC_UART2_DCE_CTS_B 0x140
MX8MN_IOMUXC_SAI3_RXD_UART2_DCE_RTS_B 0x140
>;
};
pinctrl_uart4: uart4grp {
fsl,pins = <
MX8MN_IOMUXC_UART4_RXD_UART4_DCE_RX 0x140
MX8MN_IOMUXC_UART4_TXD_UART4_DCE_TX 0x140
>;
};
pinctrl_usdhc1: usdhc1grp {
fsl,pins = <
MX8MN_IOMUXC_SD1_CLK_USDHC1_CLK 0x190
MX8MN_IOMUXC_SD1_CMD_USDHC1_CMD 0x1d0
MX8MN_IOMUXC_SD1_DATA0_USDHC1_DATA0 0x1d0
MX8MN_IOMUXC_SD1_DATA1_USDHC1_DATA1 0x1d0
MX8MN_IOMUXC_SD1_DATA2_USDHC1_DATA2 0x1d0
MX8MN_IOMUXC_SD1_DATA3_USDHC1_DATA3 0x1d0
>;
};
pinctrl_usdhc1_100mhz: usdhc1-100mhzgrp {
fsl,pins = <
MX8MN_IOMUXC_SD1_CLK_USDHC1_CLK 0x194
MX8MN_IOMUXC_SD1_CMD_USDHC1_CMD 0x1d4
MX8MN_IOMUXC_SD1_DATA0_USDHC1_DATA0 0x1d4
MX8MN_IOMUXC_SD1_DATA1_USDHC1_DATA1 0x1d4
MX8MN_IOMUXC_SD1_DATA2_USDHC1_DATA2 0x1d4
MX8MN_IOMUXC_SD1_DATA3_USDHC1_DATA3 0x1d4
>;
};
pinctrl_usdhc1_200mhz: usdhc1-200mhzgrp {
fsl,pins = <
MX8MN_IOMUXC_SD1_CLK_USDHC1_CLK 0x196
MX8MN_IOMUXC_SD1_CMD_USDHC1_CMD 0x1d6
MX8MN_IOMUXC_SD1_DATA0_USDHC1_DATA0 0x1d6
MX8MN_IOMUXC_SD1_DATA1_USDHC1_DATA1 0x1d6
MX8MN_IOMUXC_SD1_DATA2_USDHC1_DATA2 0x1d6
MX8MN_IOMUXC_SD1_DATA3_USDHC1_DATA3 0x1d6
>;
};
pinctrl_usdhc2_gpio: usdhc2gpiogrp {
fsl,pins = <
MX8MN_IOMUXC_GPIO1_IO10_GPIO1_IO10 0x41
>;
};
pinctrl_usdhc2: usdhc2grp {
fsl,pins = <
MX8MN_IOMUXC_SD2_CLK_USDHC2_CLK 0x190
MX8MN_IOMUXC_SD2_CMD_USDHC2_CMD 0x1d0
MX8MN_IOMUXC_SD2_DATA0_USDHC2_DATA0 0x1d0
MX8MN_IOMUXC_SD2_DATA1_USDHC2_DATA1 0x1d0
MX8MN_IOMUXC_SD2_DATA2_USDHC2_DATA2 0x1d0
MX8MN_IOMUXC_SD2_DATA3_USDHC2_DATA3 0x1d0
MX8MN_IOMUXC_GPIO1_IO04_USDHC2_VSELECT 0x1d0
>;
};
pinctrl_usdhc2_100mhz: usdhc2-100mhzgrp {
fsl,pins = <
MX8MN_IOMUXC_SD2_CLK_USDHC2_CLK 0x194
MX8MN_IOMUXC_SD2_CMD_USDHC2_CMD 0x1d4
MX8MN_IOMUXC_SD2_DATA0_USDHC2_DATA0 0x1d4
MX8MN_IOMUXC_SD2_DATA1_USDHC2_DATA1 0x1d4
MX8MN_IOMUXC_SD2_DATA2_USDHC2_DATA2 0x1d4
MX8MN_IOMUXC_SD2_DATA3_USDHC2_DATA3 0x1d4
MX8MN_IOMUXC_GPIO1_IO04_USDHC2_VSELECT 0x1d0
>;
};
pinctrl_usdhc2_200mhz: usdhc2-200mhzgrp {
fsl,pins = <
MX8MN_IOMUXC_SD2_CLK_USDHC2_CLK 0x196
MX8MN_IOMUXC_SD2_CMD_USDHC2_CMD 0x1d6
MX8MN_IOMUXC_SD2_DATA0_USDHC2_DATA0 0x1d6
MX8MN_IOMUXC_SD2_DATA1_USDHC2_DATA1 0x1d6
MX8MN_IOMUXC_SD2_DATA2_USDHC2_DATA2 0x1d6
MX8MN_IOMUXC_SD2_DATA3_USDHC2_DATA3 0x1d6
MX8MN_IOMUXC_GPIO1_IO04_USDHC2_VSELECT 0x1d0
>;
};
pinctrl_usdhc3: usdhc3grp {
fsl,pins = <
MX8MN_IOMUXC_NAND_WE_B_USDHC3_CLK 0x190
MX8MN_IOMUXC_NAND_WP_B_USDHC3_CMD 0x1d0
MX8MN_IOMUXC_NAND_DATA04_USDHC3_DATA0 0x1d0
MX8MN_IOMUXC_NAND_DATA05_USDHC3_DATA1 0x1d0
MX8MN_IOMUXC_NAND_DATA06_USDHC3_DATA2 0x1d0
MX8MN_IOMUXC_NAND_DATA07_USDHC3_DATA3 0x1d0
MX8MN_IOMUXC_NAND_RE_B_USDHC3_DATA4 0x1d0
MX8MN_IOMUXC_NAND_CE2_B_USDHC3_DATA5 0x1d0
MX8MN_IOMUXC_NAND_CE3_B_USDHC3_DATA6 0x1d0
MX8MN_IOMUXC_NAND_CLE_USDHC3_DATA7 0x1d0
MX8MN_IOMUXC_NAND_CE1_B_USDHC3_STROBE 0x190
>;
};
pinctrl_usdhc3_100mhz: usdhc3-100mhzgrp {
fsl,pins = <
MX8MN_IOMUXC_NAND_WE_B_USDHC3_CLK 0x194
MX8MN_IOMUXC_NAND_WP_B_USDHC3_CMD 0x1d4
MX8MN_IOMUXC_NAND_DATA04_USDHC3_DATA0 0x1d4
MX8MN_IOMUXC_NAND_DATA05_USDHC3_DATA1 0x1d4
MX8MN_IOMUXC_NAND_DATA06_USDHC3_DATA2 0x1d4
MX8MN_IOMUXC_NAND_DATA07_USDHC3_DATA3 0x1d4
MX8MN_IOMUXC_NAND_RE_B_USDHC3_DATA4 0x1d4
MX8MN_IOMUXC_NAND_CE2_B_USDHC3_DATA5 0x1d4
MX8MN_IOMUXC_NAND_CE3_B_USDHC3_DATA6 0x1d4
MX8MN_IOMUXC_NAND_CLE_USDHC3_DATA7 0x1d4
MX8MN_IOMUXC_NAND_CE1_B_USDHC3_STROBE 0x194
>;
};
pinctrl_usdhc3_200mhz: usdhc3-200mhzgrp {
fsl,pins = <
MX8MN_IOMUXC_NAND_WE_B_USDHC3_CLK 0x196
MX8MN_IOMUXC_NAND_WP_B_USDHC3_CMD 0x1d6
MX8MN_IOMUXC_NAND_DATA04_USDHC3_DATA0 0x1d6
MX8MN_IOMUXC_NAND_DATA05_USDHC3_DATA1 0x1d6
MX8MN_IOMUXC_NAND_DATA06_USDHC3_DATA2 0x1d6
MX8MN_IOMUXC_NAND_DATA07_USDHC3_DATA3 0x1d6
MX8MN_IOMUXC_NAND_RE_B_USDHC3_DATA4 0x1d6
MX8MN_IOMUXC_NAND_CE2_B_USDHC3_DATA5 0x1d6
MX8MN_IOMUXC_NAND_CE3_B_USDHC3_DATA6 0x1d6
MX8MN_IOMUXC_NAND_CLE_USDHC3_DATA7 0x1d6
MX8MN_IOMUXC_NAND_CE1_B_USDHC3_STROBE 0x196
>;
};
pinctrl_wdog: wdoggrp {
fsl,pins = <
MX8MN_IOMUXC_GPIO1_IO02_WDOG1_WDOG_B 0x166
>;
};
};
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