1// SPDX-License-Identifier: (GPL-2.0 OR MIT)
  2/*
  3 * Device Tree file for SolidRun Armada 38x Microsom
  4 *
  5 *  Copyright (C) 2015 Russell King
  6 */
  7#include <dt-bindings/input/input.h>
  8#include <dt-bindings/gpio/gpio.h>
  9
 10/ {
 11	memory {
 12		device_type = "memory";
 13		reg = <0x00000000 0x10000000>; /* 256 MB */
 14	};
 15
 16	soc {
 17		ranges = <MBUS_ID(0xf0, 0x01) 0 0xf1000000 0x100000
 18			  MBUS_ID(0x01, 0x1d) 0 0xfff00000 0x100000
 19			  MBUS_ID(0x09, 0x19) 0 0xf1100000 0x10000
 20			  MBUS_ID(0x09, 0x15) 0 0xf1110000 0x10000
 21			  MBUS_ID(0x0c, 0x04) 0 0xf1200000 0x100000>;
 22
 23		internal-regs {
 24			rtc@a3800 {
 25				/*
 26				 * If the rtc doesn't work, run "date reset"
 27				 * twice in u-boot.
 28				 */
 29				status = "okay";
 30			};
 31		};
 32	};
 33};
 34
 35&bm {
 36	status = "okay";
 37};
 38
 39&bm_bppi {
 40	status = "okay";
 41};
 42
 43&eth0 {
 44	/* ethernet@70000 */
 45	pinctrl-0 = <&ge0_rgmii_pins>;
 46	pinctrl-names = "default";
 47	phy = <&phy_dedicated>;
 48	phy-mode = "rgmii-id";
 49	buffer-manager = <&bm>;
 50	bm,pool-long = <0>;
 51	bm,pool-short = <1>;
 52	status = "okay";
 53};
 54
 55&mdio {
 56	/*
 57	 * Add the phy clock here, so the phy can be accessed to read its
 58	 * IDs prior to binding with the driver.
 59	 */
 60	pinctrl-0 = <&mdio_pins &microsom_phy_clk_pins>;
 61	pinctrl-names = "default";
 62
 63	phy_dedicated: ethernet-phy@0 {
 64		/*
 65		 * Annoyingly, the marvell phy driver configures the LED
 66		 * register, rather than preserving reset-loaded setting.
 67		 * We undo that rubbish here.
 68		 */
 69		marvell,reg-init = <3 16 0 0x101e>;
 70		reg = <0>;
 71	};
 72};
 73
 74&i2c0 {
 75	clock-frequency = <400000>;
 76	pinctrl-0 = <&i2c0_pins>;
 77	pinctrl-names = "default";
 78	status = "okay";
 79
 80	eeprom@53 {
 81		compatible = "atmel,24c02";
 82		reg = <0x53>;
 83		pagesize = <16>;
 84	};
 85};
 86
 87&pinctrl {
 88	microsom_phy_clk_pins: microsom-phy-clk-pins {
 89		marvell,pins = "mpp45";
 90		marvell,function = "ref";
 91	};
 92	/* Optional eMMC */
 93	microsom_sdhci_pins: microsom-sdhci-pins {
 94		marvell,pins = "mpp21", "mpp28", "mpp37",
 95			       "mpp38", "mpp39", "mpp40";
 96		marvell,function = "sd0";
 97	};
 98};
 99
100&spi1 {
101	/* The microsom has an optional W25Q32 on board, connected to CS0 */
102	pinctrl-0 = <&spi1_pins>;
103
104	w25q32: flash@0 {
105		#address-cells = <1>;
106		#size-cells = <1>;
107		compatible = "w25q32", "jedec,spi-nor";
108		reg = <0>; /* Chip select 0 */
109		spi-max-frequency = <3000000>;
110	};
111};
112
113&uart0 {
114	pinctrl-0 = <&uart0_pins>;
115	pinctrl-names = "default";
116	status = "okay";
117};