arch/arm64/boot/dts/freescale/fsl-imx8mm-evk-root.dts

/*
 * Copyright 2018 NXP
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#include "fsl-imx8mm-evk.dts"

/ {
	interrupt-parent = <&gic>;
};

/delete-node/ &gpc;

&CPU_SLEEP {
	/* We are not using GPC for now, need set 0 to avoid hang */
	/delete-property/ compatible;
	/*arm,psci-suspend-param = <0x0>;*/
};

&clk {
	init-on-array = <IMX8MM_CLK_AHB_CG IMX8MM_CLK_DRAM_CORE
			 IMX8MM_CLK_NOC_CG IMX8MM_CLK_NOC_APB_CG
			 IMX8MM_CLK_USB_BUS_CG
			 IMX8MM_CLK_MAIN_AXI_CG IMX8MM_CLK_AUDIO_AHB_CG
			 IMX8MM_CLK_DRAM_APB_DIV IMX8MM_CLK_A53_DIV
			 IMX8MM_ARM_PLL_OUT IMX8MM_CLK_DISP_AXI_CG
			 IMX8MM_CLK_DISP_APB_CG
			 IMX8MM_CLK_NAND_USDHC_BUS_CG
			 IMX8MM_CLK_USDHC3_ROOT
			 IMX8MM_CLK_UART4_ROOT>;
};

&iomuxc {
	imx8mq-evk {
		/*
		 * Used for the 2nd Linux.
		 * TODO: M4 may use these pins.
		 */
		pinctrl_uart4: uart4grp {
			fsl,pins = <
				MX8MM_IOMUXC_UART4_RXD_UART4_DCE_RX	0x140
				MX8MM_IOMUXC_UART4_TXD_UART4_DCE_TX	0x140
			>;
		};

	};
};

&{/busfreq} {
	/* Disable busfreq, to avoid 1st Linux busfreq crash other inmates */
	status = "disabled";
};

&{/reserved-memory} {

	ivshmem_reserved: ivshmem@0xbbb00000 {
		no-map;
		reg = <0 0xbbb00000 0x0 0x00100000>;
	};

	ivshmem2_reserved: ivshmem2@0xbba00000 {
		no-map;
		reg = <0 0xbba00000 0x0 0x00100000>;
	};

	pci_reserved: pci@0xbb800000 {
		no-map;
		reg = <0 0xbb800000 0x0 0x00200000>;
	};

	loader_reserved: loader@0xbb700000 {
		no-map;
		reg = <0 0xbb700000 0x0 0x00100000>;
	};

	jh_reserved: jh@0xb7c00000 {
		no-map;
		reg = <0 0xb7c00000 0x0 0x00400000>;
	};

	/* 512MB */
	inmate_reserved: inmate@0x93c00000 {
		no-map;
		reg = <0 0x93c00000 0x0 0x24000000>;
	};
};

&uart2 {
	/* uart2 is used by the 2nd OS, so configure pin and clk */
	pinctrl-0 = <&pinctrl_uart2>, <&pinctrl_uart4>;
	assigned-clocks = <&clk IMX8MM_CLK_UART4_SRC>;
	assigned-clock-parents = <&clk IMX8MM_CLK_24M>;
};

&usdhc3 {
	status = "disabled";
};

&usdhc2 {
	/* sdhc3 is used by 2nd linux, configure the pin */
	pinctrl-0 = <&pinctrl_usdhc3>, <&pinctrl_usdhc2>, <&pinctrl_usdhc2_gpio>;
	pinctrl-1 = <&pinctrl_usdhc3>, <&pinctrl_usdhc2_100mhz>, <&pinctrl_usdhc2_gpio>;
	pinctrl-2 = <&pinctrl_usdhc3>, <&pinctrl_usdhc2_200mhz>, <&pinctrl_usdhc2_gpio>;
};