294 lines
6.3 KiB
Plaintext
294 lines
6.3 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0
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/*
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* Device Tree file for ITian Square One SQ201 NAS
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*/
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/dts-v1/;
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#include "gemini.dtsi"
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#include <dt-bindings/input/input.h>
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/ {
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model = "ITian Square One SQ201";
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compatible = "itian,sq201", "cortina,gemini";
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#address-cells = <1>;
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#size-cells = <1>;
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memory@0 { /* 128 MB */
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device_type = "memory";
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reg = <0x00000000 0x8000000>;
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};
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chosen {
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bootargs = "console=ttyS0,115200n8 root=/dev/mtdblock2 rw rootfstype=squashfs,jffs2 rootwait";
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stdout-path = &uart0;
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};
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gpio_keys {
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compatible = "gpio-keys";
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button-setup {
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debounce-interval = <50>;
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wakeup-source;
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linux,code = <KEY_SETUP>;
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label = "factory reset";
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/* Conflict with NAND flash */
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gpios = <&gpio0 18 GPIO_ACTIVE_LOW>;
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};
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};
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leds {
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compatible = "gpio-leds";
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led-green-info {
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label = "sq201:green:info";
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/* Conflict with parallel flash */
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gpios = <&gpio0 20 GPIO_ACTIVE_HIGH>;
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default-state = "on";
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linux,default-trigger = "heartbeat";
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};
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led-green-usb {
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label = "sq201:green:usb";
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/* Conflict with parallel and NAND flash */
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gpios = <&gpio0 31 GPIO_ACTIVE_HIGH>;
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default-state = "off";
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linux,default-trigger = "usb-host";
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};
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};
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mdio0: mdio {
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compatible = "virtual,mdio-gpio";
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/* Uses MDC and MDIO */
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gpios = <&gpio0 22 GPIO_ACTIVE_HIGH>, /* MDC */
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<&gpio0 21 GPIO_ACTIVE_HIGH>; /* MDIO */
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#address-cells = <1>;
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#size-cells = <0>;
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/* This is a Marvell 88E1111 ethernet transciever */
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phy0: ethernet-phy@1 {
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reg = <1>;
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};
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};
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spi {
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compatible = "spi-gpio";
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#address-cells = <1>;
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#size-cells = <0>;
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/* Check pin collisions */
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gpio-sck = <&gpio1 28 GPIO_ACTIVE_HIGH>;
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gpio-miso = <&gpio1 30 GPIO_ACTIVE_HIGH>;
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gpio-mosi = <&gpio1 29 GPIO_ACTIVE_HIGH>;
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cs-gpios = <&gpio1 31 GPIO_ACTIVE_HIGH>;
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num-chipselects = <1>;
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switch@0 {
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compatible = "vitesse,vsc7395";
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reg = <0>;
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/* Specified for 2.5 MHz or below */
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spi-max-frequency = <2500000>;
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gpio-controller;
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#gpio-cells = <2>;
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ports {
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#address-cells = <1>;
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#size-cells = <0>;
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port@0 {
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reg = <0>;
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label = "lan1";
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};
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port@1 {
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reg = <1>;
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label = "lan2";
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};
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port@2 {
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reg = <2>;
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label = "lan3";
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};
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port@3 {
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reg = <3>;
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label = "lan4";
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};
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vsc: port@6 {
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reg = <6>;
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label = "cpu";
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ethernet = <&gmac1>;
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phy-mode = "rgmii";
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fixed-link {
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speed = <1000>;
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full-duplex;
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pause;
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};
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};
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};
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};
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};
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soc {
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flash@30000000 {
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/*
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* Flash access can be enabled, with the side effect
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* of disabling access to GPIO LED on GPIO0[20] which
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* reuse one of the parallel flash chip select lines.
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* Also the default firmware on the machine has the
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* problem that since it uses the flash, the two LEDS
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* on the right become numb.
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*/
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/* status = "okay"; */
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/* 16MB of flash */
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reg = <0x30000000 0x01000000>;
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partitions {
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compatible = "redboot-fis";
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/* Eraseblock at 0xfe0000 */
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fis-index-block = <0x1fc>;
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};
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};
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syscon: syscon@40000000 {
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pinctrl {
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/*
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* gpio0fgrp cover line 18 used by reset button
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* gpio0ggrp cover line 20 used by info LED
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* gpio0hgrp cover line 21, 22 used by MDIO for Marvell PHY
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* gpio0kgrp cover line 31 used by USB LED
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*/
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gpio0_default_pins: pinctrl-gpio0 {
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mux {
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function = "gpio0";
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groups = "gpio0fgrp",
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"gpio0ggrp",
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"gpio0hgrp",
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"gpio0kgrp";
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};
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};
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/*
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* gpio0dgrp cover lines used by the SPI
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* to the Vitesse G5x chip.
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*/
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gpio1_default_pins: pinctrl-gpio1 {
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mux {
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function = "gpio1";
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groups = "gpio1dgrp";
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};
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};
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pinctrl-gmii {
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mux {
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function = "gmii";
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groups = "gmii_gmac0_grp", "gmii_gmac1_grp";
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};
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/* Settings come from memory dump in PLATO */
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conf0 {
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pins = "V8 GMAC0 RXDV";
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skew-delay = <0>;
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};
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conf1 {
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pins = "Y7 GMAC0 RXC";
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skew-delay = <15>;
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};
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conf2 {
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pins = "T8 GMAC0 TXEN";
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skew-delay = <7>;
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};
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conf3 {
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pins = "U8 GMAC0 TXC";
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skew-delay = <10>;
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};
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conf4 {
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pins = "T10 GMAC1 RXDV";
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skew-delay = <7>;
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};
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conf5 {
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pins = "Y11 GMAC1 RXC";
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skew-delay = <8>;
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};
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conf6 {
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pins = "W11 GMAC1 TXEN";
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skew-delay = <7>;
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};
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conf7 {
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pins = "V11 GMAC1 TXC";
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skew-delay = <5>;
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};
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conf8 {
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/* The data lines all have default skew */
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pins = "W8 GMAC0 RXD0", "V9 GMAC0 RXD1",
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"Y8 GMAC0 RXD2", "U9 GMAC0 RXD3",
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"T7 GMAC0 TXD0", "U6 GMAC0 TXD1",
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"V7 GMAC0 TXD2", "U7 GMAC0 TXD3",
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"Y12 GMAC1 RXD0", "V12 GMAC1 RXD1",
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"T11 GMAC1 RXD2", "W12 GMAC1 RXD3",
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"U10 GMAC1 TXD0", "Y10 GMAC1 TXD1",
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"W10 GMAC1 TXD2", "T9 GMAC1 TXD3";
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skew-delay = <7>;
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};
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/* Set up drive strength on GMAC0 and GMAC1 to 16 mA */
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conf9 {
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groups = "gmii_gmac0_grp", "gmii_gmac1_grp";
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drive-strength = <16>;
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};
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};
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};
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};
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sata: sata@46000000 {
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cortina,gemini-ata-muxmode = <0>;
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cortina,gemini-enable-sata-bridge;
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status = "okay";
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};
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gpio0: gpio@4d000000 {
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pinctrl-names = "default";
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pinctrl-0 = <&gpio0_default_pins>;
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};
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gpio1: gpio@4e000000 {
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pinctrl-names = "default";
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pinctrl-0 = <&gpio1_default_pins>;
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};
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pci@50000000 {
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status = "okay";
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interrupt-map-mask = <0xf800 0 0 7>;
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interrupt-map =
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<0x4800 0 0 1 &pci_intc 0>, /* Slot 9 */
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<0x4800 0 0 2 &pci_intc 1>,
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<0x4800 0 0 3 &pci_intc 2>,
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<0x4800 0 0 4 &pci_intc 3>,
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<0x5000 0 0 1 &pci_intc 1>, /* Slot 10 */
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<0x5000 0 0 2 &pci_intc 2>,
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<0x5000 0 0 3 &pci_intc 3>,
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<0x5000 0 0 4 &pci_intc 0>,
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<0x5800 0 0 1 &pci_intc 2>, /* Slot 11 */
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<0x5800 0 0 2 &pci_intc 3>,
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<0x5800 0 0 3 &pci_intc 0>,
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<0x5800 0 0 4 &pci_intc 1>,
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<0x6000 0 0 1 &pci_intc 3>, /* Slot 12 */
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<0x6000 0 0 2 &pci_intc 0>,
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<0x6000 0 0 3 &pci_intc 1>,
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<0x6000 0 0 4 &pci_intc 2>;
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};
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ethernet@60000000 {
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status = "okay";
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ethernet-port@0 {
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phy-mode = "rgmii";
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phy-handle = <&phy0>;
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};
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ethernet-port@1 {
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phy-mode = "rgmii";
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fixed-link {
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speed = <1000>;
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full-duplex;
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pause;
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};
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};
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};
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ata@63000000 {
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status = "okay";
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};
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};
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};
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