linux_dsm_epyc7002/arch/arm/boot/dts/armada-xp-gp.dts

/*
 * Device Tree file for Marvell Armada XP development board
 * (DB-MV784MP-GP)
 *
 * Copyright (C) 2013-2014 Marvell
 *
 * Lior Amsalem <alior@marvell.com>
 * Gregory CLEMENT <gregory.clement@free-electrons.com>
 * Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
 *
 * This file is licensed under the terms of the GNU General Public
 * License version 2.  This program is licensed "as is" without any
 * warranty of any kind, whether express or implied.
 *
 * Note: this Device Tree assumes that the bootloader has remapped the
 * internal registers to 0xf1000000 (instead of the default
 * 0xd0000000). The 0xf1000000 is the default used by the recent,
 * DT-capable, U-Boot bootloaders provided by Marvell. Some earlier
 * boards were delivered with an older version of the bootloader that
 * left internal registers mapped at 0xd0000000. If you are in this
 * situation, you should either update your bootloader (preferred
 * solution) or the below Device Tree should be adjusted.
 */

/dts-v1/;
#include "armada-xp-mv78460.dtsi"

/ {
	model = "Marvell Armada XP Development Board DB-MV784MP-GP";
	compatible = "marvell,axp-gp", "marvell,armadaxp-mv78460", "marvell,armadaxp", "marvell,armada-370-xp";

	chosen {
		bootargs = "console=ttyS0,115200 earlyprintk";
	};

	memory {
		device_type = "memory";
		/*
                 * 8 GB of plug-in RAM modules by default.The amount
                 * of memory available can be changed by the
                 * bootloader according the size of the module
                 * actually plugged. However, memory between
                 * 0xF0000000 to 0xFFFFFFFF cannot be used, as it is
                 * the address range used for I/O (internal registers,
                 * MBus windows).
		 */
		reg = <0x00000000 0x00000000 0x00000000 0xf0000000>,
		      <0x00000001 0x00000000 0x00000001 0x00000000>;
	};

	soc {
		ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xf1000000 0x100000
			  MBUS_ID(0x01, 0x1d) 0 0 0xfff00000 0x100000
			  MBUS_ID(0x01, 0x2f) 0 0 0xf0000000 0x1000000>;

		devbus-bootcs {
			status = "okay";

			/* Device Bus parameters are required */

			/* Read parameters */
			devbus,bus-width    = <16>;
			devbus,turn-off-ps  = <60000>;
			devbus,badr-skew-ps = <0>;
			devbus,acc-first-ps = <124000>;
			devbus,acc-next-ps  = <248000>;
			devbus,rd-setup-ps  = <0>;
			devbus,rd-hold-ps   = <0>;

			/* Write parameters */
			devbus,sync-enable = <0>;
			devbus,wr-high-ps  = <60000>;
			devbus,wr-low-ps   = <60000>;
			devbus,ale-wr-ps   = <60000>;

			/* NOR 16 MiB */
			nor@0 {
				compatible = "cfi-flash";
				reg = <0 0x1000000>;
				bank-width = <2>;
			};
		};

		pcie-controller {
			status = "okay";

			/*
			 * The 3 slots are physically present as
			 * standard PCIe slots on the board.
			 */
			pcie@1,0 {
				/* Port 0, Lane 0 */
				status = "okay";
			};
			pcie@9,0 {
				/* Port 2, Lane 0 */
				status = "okay";
			};
			pcie@10,0 {
				/* Port 3, Lane 0 */
				status = "okay";
			};
		};

		internal-regs {
			serial@12000 {
				status = "okay";
			};
			serial@12100 {
				status = "okay";
			};
			serial@12200 {
				status = "okay";
			};
			serial@12300 {
				status = "okay";
			};

			sata@a0000 {
				nr-ports = <2>;
				status = "okay";
			};

			mdio {
				phy0: ethernet-phy@0 {
					reg = <16>;
				};

				phy1: ethernet-phy@1 {
					reg = <17>;
				};

				phy2: ethernet-phy@2 {
					reg = <18>;
				};

				phy3: ethernet-phy@3 {
					reg = <19>;
				};
			};

			ethernet@70000 {
				status = "okay";
				phy = <&phy0>;
				phy-mode = "qsgmii";
			};
			ethernet@74000 {
				status = "okay";
				phy = <&phy1>;
				phy-mode = "qsgmii";
			};
			ethernet@30000 {
				status = "okay";
				phy = <&phy2>;
				phy-mode = "qsgmii";
			};
			ethernet@34000 {
				status = "okay";
				phy = <&phy3>;
				phy-mode = "qsgmii";
			};

			/* Front-side USB slot */
			usb@50000 {
				status = "okay";
			};

			/* Back-side USB slot */
			usb@51000 {
				status = "okay";
			};

			spi0: spi@10600 {
				status = "okay";

				spi-flash@0 {
					#address-cells = <1>;
					#size-cells = <1>;
					compatible = "n25q128a13";
					reg = <0>; /* Chip select 0 */
					spi-max-frequency = <108000000>;
				};
			};

			nand@d0000 {
				status = "okay";
				num-cs = <1>;
				marvell,nand-keep-config;
				marvell,nand-enable-arbiter;
				nand-on-flash-bbt;
			};
		};
	};
};