295 lines
6.1 KiB
Plaintext
295 lines
6.1 KiB
Plaintext
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Device Tree file for the Storm Semiconductor SL93512R_BRD
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* Gemini reference design, also initially called
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* "Gemini324 EV-Board" before Storm acquired Storlink Semiconductor.
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* The series were later acquired by Cortina Systems.
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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 = "Storlink Semiconductor Gemini324 EV-Board / Storm Semiconductor SL93512R_BRD";
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compatible = "storlink,gemini324", "storm,sl93512r", "cortina,gemini";
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#address-cells = <1>;
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#size-cells = <1>;
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memory@0 {
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/* 64 MB Samsung K4H511638B */
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device_type = "memory";
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reg = <0x00000000 0x4000000>;
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};
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chosen {
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bootargs = "console=ttyS0,19200n8 root=/dev/mtdblock3 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-wps {
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debounce-interval = <50>;
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wakeup-source;
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linux,code = <KEY_WPS_BUTTON>;
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label = "WPS";
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/* Conflicts with TVC and extended flash */
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gpios = <&gpio0 0 GPIO_ACTIVE_LOW>;
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};
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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-harddisk {
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label = "sq201:green:harddisk";
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/* Conflict with LCD (no problem) */
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gpios = <&gpio0 16 GPIO_ACTIVE_LOW>;
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default-state = "off";
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linux,default-trigger = "disk-activity";
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};
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led-green-wireless {
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label = "sq201:green:wireless";
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/* Conflict with NAND flash CE0 (no problem) */
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gpios = <&gpio0 17 GPIO_ACTIVE_LOW>;
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default-state = "on";
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linux,default-trigger = "heartbeat";
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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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sck-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
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miso-gpios = <&gpio1 30 GPIO_ACTIVE_HIGH>;
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mosi-gpios = <&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,vsc7385";
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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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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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* gpio0agrp cover line 0, used by WPS button
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* gpio0fgrp cover line 16 used by HD LED
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* gpio0ggrp cover line 17, 18 used by wireless LAN LED and
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* reset button OR USB ID select on 17 and USB VBUS select
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* on 18. (Confusing.)
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* gpio0igrp cover line 21, 22 used by MDIO for Marvell PHY
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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 = "gpio0agrp",
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"gpio0fgrp",
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"gpio0ggrp",
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"gpio0igrp";
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};
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};
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/*
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* gpio1dgrp cover lines used by SPI for
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* the Vitesse chip (28-31)
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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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/* Control pad skew comes from sl_switch.c in the vendor code */
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conf0 {
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pins = "P10 GMAC1 TXC";
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skew-delay = <5>;
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};
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conf1 {
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pins = "V11 GMAC1 TXEN";
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skew-delay = <7>;
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};
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conf2 {
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pins = "T11 GMAC1 RXC";
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skew-delay = <8>;
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};
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conf3 {
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pins = "U11 GMAC1 RXDV";
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skew-delay = <7>;
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};
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conf4 {
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pins = "V7 GMAC0 TXC";
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skew-delay = <10>;
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};
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conf5 {
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pins = "P8 GMAC0 TXEN";
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skew-delay = <7>; /* 5 at another place? */
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};
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conf6 {
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pins = "T8 GMAC0 RXC";
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skew-delay = <15>;
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};
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conf7 {
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pins = "R8 GMAC0 RXDV";
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skew-delay = <0>;
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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 = "U8 GMAC0 RXD0", "V8 GMAC0 RXD1",
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"P9 GMAC0 RXD2", "R9 GMAC0 RXD3",
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"R11 GMAC1 RXD0", "P11 GMAC1 RXD1",
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"V12 GMAC1 RXD2", "U12 GMAC1 RXD3",
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"R10 GMAC1 TXD0", "T10 GMAC1 TXD1",
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"U10 GMAC1 TXD2", "V10 GMAC1 TXD3";
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skew-delay = <7>;
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};
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/* Appears in sl351x_gmac.c in the vendor code */
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conf9 {
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pins = "U7 GMAC0 TXD0", "T7 GMAC0 TXD1",
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"R7 GMAC0 TXD2", "P7 GMAC0 TXD3";
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skew-delay = <5>;
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};
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};
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};
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};
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/* Both interfaces brought out on SATA connectors */
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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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};
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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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ide@63000000 {
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status = "okay";
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};
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ide@63400000 {
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status = "okay";
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};
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usb@68000000 {
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status = "okay";
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};
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usb@69000000 {
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status = "okay";
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};
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};
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};
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