linux/arch/arm/boot/dts/vf610-zii-spb4.dts
Chris Healy f7e630bcae ARM: dts: ZII: Disable HW Ethernet switch reset GPIOs
Disable Ethernet switch reset GPIO with ZII platforms that have it
enabled.  HW switch reset results in a reset of the copper PHYs
inside of the switch.  We want to avoid this reset of the copper PHYs
in the switch as this results in unnecessary broader network disruption on
a soft reboot of the application processor.

With the HW GPIO removed, the switch driver still performs a soft reset of
the switch core which has been shown to sufficiently meet our needs with
other ZII platforms that do not have the HW switch reset GPIO defined.

Signed-off-by: Chris Healy <cphealy@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-08-17 21:28:42 +08:00

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// SPDX-License-Identifier: (GPL-2.0 OR MIT)
/*
* Device tree file for ZII's SPB4 board
*
* SPB - Seat Power Box
*
* Copyright (C) 2019 Zodiac Inflight Innovations
*/
/dts-v1/;
#include "vf610.dtsi"
/ {
model = "ZII VF610 SPB4 Board";
compatible = "zii,vf610spb4", "zii,vf610dev", "fsl,vf610";
chosen {
stdout-path = &uart0;
};
memory@80000000 {
device_type = "memory";
reg = <0x80000000 0x20000000>;
};
gpio-leds {
compatible = "gpio-leds";
pinctrl-0 = <&pinctrl_leds_debug>;
pinctrl-names = "default";
led-debug {
label = "zii:green:debug1";
gpios = <&gpio2 18 GPIO_ACTIVE_HIGH>;
linux,default-trigger = "heartbeat";
};
};
reg_vcc_3v3_mcu: regulator-vcc-3v3-mcu {
compatible = "regulator-fixed";
regulator-name = "vcc_3v3_mcu";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
supply-voltage-monitor {
compatible = "iio-hwmon";
io-channels = <&adc0 8>, /* 28V_SW */
<&adc0 9>, /* +3.3V */
<&adc1 8>, /* VCC_1V5 */
<&adc1 9>; /* VCC_1V2 */
};
};
&adc0 {
vref-supply = <&reg_vcc_3v3_mcu>;
status = "okay";
};
&adc1 {
vref-supply = <&reg_vcc_3v3_mcu>;
status = "okay";
};
&dspi1 {
bus-num = <1>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_dspi1>;
status = "okay";
flash@0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "m25p128", "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <50000000>;
};
};
&edma0 {
status = "okay";
};
&edma1 {
status = "okay";
};
&esdhc0 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_esdhc0>;
bus-width = <8>;
non-removable;
no-1-8-v;
keep-power-in-suspend;
no-sdio;
no-sd;
status = "okay";
};
&esdhc1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_esdhc1>;
bus-width = <4>;
no-sdio;
status = "okay";
};
&fec1 {
phy-mode = "rmii";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_fec1>;
status = "okay";
fixed-link {
speed = <100>;
full-duplex;
};
mdio1: mdio {
#address-cells = <1>;
#size-cells = <0>;
clock-frequency = <12500000>;
suppress-preamble;
status = "okay";
switch0: switch0@0 {
compatible = "marvell,mv88e6190";
pinctrl-0 = <&pinctrl_gpio_switch0>;
pinctrl-names = "default";
reg = <0>;
eeprom-length = <65536>;
interrupt-parent = <&gpio3>;
interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
interrupt-controller;
#interrupt-cells = <2>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
label = "cpu";
ethernet = <&fec1>;
fixed-link {
speed = <100>;
full-duplex;
};
};
port@1 {
reg = <1>;
label = "eth_cu_1000_1";
};
port@2 {
reg = <2>;
label = "eth_cu_1000_2";
};
port@3 {
reg = <3>;
label = "eth_cu_1000_3";
};
port@4 {
reg = <4>;
label = "eth_cu_1000_4";
};
port@5 {
reg = <5>;
label = "eth_cu_1000_5";
};
port@6 {
reg = <6>;
label = "eth_cu_1000_6";
};
};
};
};
};
&i2c0 {
clock-frequency = <100000>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c0>;
status = "okay";
io-expander@22 {
compatible = "nxp,pca9554";
reg = <0x22>;
gpio-controller;
#gpio-cells = <2>;
};
eeprom@50 {
compatible = "atmel,24c04";
reg = <0x50>;
label = "nameplate";
};
eeprom@52 {
compatible = "atmel,24c04";
reg = <0x52>;
};
};
&i2c1 {
clock-frequency = <100000>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c1>;
status = "okay";
watchdog@38 {
compatible = "zii,rave-wdt";
reg = <0x38>;
};
};
&snvsrtc {
status = "disabled";
};
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart0>;
status = "okay";
};
&uart1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart1>;
status = "okay";
};
&uart2 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart2>;
status = "okay";
rave-sp {
compatible = "zii,rave-sp-rdu2";
current-speed = <1000000>;
#address-cells = <1>;
#size-cells = <1>;
watchdog {
compatible = "zii,rave-sp-watchdog";
};
eeprom@a3 {
compatible = "zii,rave-sp-eeprom";
reg = <0xa3 0x4000>;
#address-cells = <1>;
#size-cells = <1>;
zii,eeprom-name = "main-eeprom";
};
};
};
&uart3 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart3>;
status = "okay";
};
&wdoga5 {
status = "disabled";
};
&iomuxc {
pinctrl_dspi1: dspi1grp {
fsl,pins = <
VF610_PAD_PTD5__DSPI1_CS0 0x1182
VF610_PAD_PTD4__DSPI1_CS1 0x1182
VF610_PAD_PTC6__DSPI1_SIN 0x1181
VF610_PAD_PTC7__DSPI1_SOUT 0x1182
VF610_PAD_PTC8__DSPI1_SCK 0x1182
>;
};
pinctrl_esdhc0: esdhc0grp {
fsl,pins = <
VF610_PAD_PTC0__ESDHC0_CLK 0x31ef
VF610_PAD_PTC1__ESDHC0_CMD 0x31ef
VF610_PAD_PTC2__ESDHC0_DAT0 0x31ef
VF610_PAD_PTC3__ESDHC0_DAT1 0x31ef
VF610_PAD_PTC4__ESDHC0_DAT2 0x31ef
VF610_PAD_PTC5__ESDHC0_DAT3 0x31ef
VF610_PAD_PTD23__ESDHC0_DAT4 0x31ef
VF610_PAD_PTD22__ESDHC0_DAT5 0x31ef
VF610_PAD_PTD21__ESDHC0_DAT6 0x31ef
VF610_PAD_PTD20__ESDHC0_DAT7 0x31ef
>;
};
pinctrl_esdhc1: esdhc1grp {
fsl,pins = <
VF610_PAD_PTA24__ESDHC1_CLK 0x31ef
VF610_PAD_PTA25__ESDHC1_CMD 0x31ef
VF610_PAD_PTA26__ESDHC1_DAT0 0x31ef
VF610_PAD_PTA27__ESDHC1_DAT1 0x31ef
VF610_PAD_PTA28__ESDHC1_DATA2 0x31ef
VF610_PAD_PTA29__ESDHC1_DAT3 0x31ef
>;
};
pinctrl_fec1: fec1grp {
fsl,pins = <
VF610_PAD_PTA6__RMII_CLKIN 0x30d1
VF610_PAD_PTC9__ENET_RMII1_MDC 0x30d2
VF610_PAD_PTC10__ENET_RMII1_MDIO 0x30d3
VF610_PAD_PTC11__ENET_RMII1_CRS 0x30d1
VF610_PAD_PTC12__ENET_RMII1_RXD1 0x30d1
VF610_PAD_PTC13__ENET_RMII1_RXD0 0x30d1
VF610_PAD_PTC14__ENET_RMII1_RXER 0x30d1
VF610_PAD_PTC15__ENET_RMII1_TXD1 0x30d2
VF610_PAD_PTC16__ENET_RMII1_TXD0 0x30d2
VF610_PAD_PTC17__ENET_RMII1_TXEN 0x30d2
>;
};
pinctrl_gpio_switch0: pinctrl-gpio-switch0 {
fsl,pins = <
VF610_PAD_PTB28__GPIO_98 0x219d
>;
};
pinctrl_i2c0: i2c0grp {
fsl,pins = <
VF610_PAD_PTB14__I2C0_SCL 0x37ff
VF610_PAD_PTB15__I2C0_SDA 0x37ff
>;
};
pinctrl_i2c1: i2c1grp {
fsl,pins = <
VF610_PAD_PTB16__I2C1_SCL 0x37ff
VF610_PAD_PTB17__I2C1_SDA 0x37ff
>;
};
pinctrl_leds_debug: pinctrl-leds-debug {
fsl,pins = <
VF610_PAD_PTD3__GPIO_82 0x31c2
>;
};
pinctrl_uart0: uart0grp {
fsl,pins = <
VF610_PAD_PTB10__UART0_TX 0x21a2
VF610_PAD_PTB11__UART0_RX 0x21a1
>;
};
pinctrl_uart1: uart1grp {
fsl,pins = <
VF610_PAD_PTB23__UART1_TX 0x21a2
VF610_PAD_PTB24__UART1_RX 0x21a1
>;
};
pinctrl_uart2: uart2grp {
fsl,pins = <
VF610_PAD_PTD0__UART2_TX 0x21a2
VF610_PAD_PTD1__UART2_RX 0x21a1
>;
};
pinctrl_uart3: uart3grp {
fsl,pins = <
VF610_PAD_PTA30__UART3_TX 0x21a2
VF610_PAD_PTA31__UART3_RX 0x21a1
>;
};
};