difos/target/linux/mvebu/files/arch/arm/boot/dts/armada-370-buffalo-ls421de.dts
Daniel González Cabanelas b8362c20e7 mvebu: LS421DE: use the RTC as a wakeup source
The Buffalo Linkstation LS421DE comes with a Ricoh RS5C372A real time
clock. This RTC has the INTRA pin connected to the power management
circuit, allowing to wake up the device from the power off state when an
alarm is scheduled.

Add the "wakeup-source" property in the RTC dts node to allow the use
of the alarm.

Example of use, the device is powered off and it comes to life after 5
minutes:
echo $(expr $(date '+%s') + 60 * 5) > /sys/class/rtc/rtc0/wakealarm
poweroff

This feature isn't available in the stock firmware.

Signed-off-by: Daniel González Cabanelas <dgcbueu@gmail.com>
2020-12-22 18:59:10 +01:00

404 lines
8 KiB
Text

// SPDX-License-Identifier: (GPL-2.0-or-later OR MIT)
/*
* Device Tree file for Buffalo LinkStation LS421DE
*
* Copyright (C) 2020 Daniel González Cabanelas <dgcbueu@gmail.com>
*/
/dts-v1/;
#include "armada-370.dtsi"
#include "mvebu-linkstation-fan.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/thermal/thermal.h>
/ {
model = "Buffalo LinkStation LS421DE";
compatible = "buffalo,ls421de", "marvell,armada370", "marvell,armada-370-xp";
aliases {
led-boot = &led_boot;
led-failsafe = &led_failsafe;
led-running = &led_power;
led-upgrade = &led_upgrade;
};
chosen {
bootargs = "console=ttyS0,115200 earlyprintk noinitrd rootfstype=squashfs";
stdout-path = "serial0:115200n8";
append-rootblock = "nullparameter="; /* override the bootloader args */
};
memory {
device_type = "memory";
reg = <0x00000000 0x20000000>; /* 512 MB */
};
soc {
ranges = <MBUS_ID(0xf0, 0x01) 0 0xd0000000 0x100000
MBUS_ID(0x01, 0xe0) 0 0xfff00000 0x100000
MBUS_ID(0x09, 0x01) 0 0xf1100000 0x10000>;
};
system_fan: gpio_fan {
gpios = <&gpio0 13 GPIO_ACTIVE_HIGH
&gpio0 14 GPIO_ACTIVE_HIGH>;
alarm-gpios = <&gpio0 10 GPIO_ACTIVE_HIGH>;
#cooling-cells = <2>;
};
thermal-zones {
chassis-thermal {
polling-delay = <20000>;
polling-delay-passive = <2000>;
thermal-sensors = <&hdd0_temp>, <&hdd1_temp>;
coefficients = <1 1>;
trips {
chassis_alert1: chassis-alert1 {
temperature = <36000>;
hysteresis = <2000>;
type = "active";
};
chassis_alert2: chassis-alert2 {
temperature = <46000>;
hysteresis = <2000>;
type = "active";
};
chassis_alert3: chassis-alert3 {
temperature = <56000>;
hysteresis = <2000>;
type = "passive";
};
chassis_crit: chassis-crit {
temperature = <66000>;
hysteresis = <2000>;
type = "critical";
};
};
cooling-maps {
map1 {
trip = <&chassis_alert1>;
cooling-device = <&system_fan THERMAL_NO_LIMIT 1>;
};
map2 {
trip = <&chassis_alert2>;
cooling-device = <&system_fan 2 2>;
};
map3 {
trip = <&chassis_alert3>;
cooling-device = <&system_fan 3 THERMAL_NO_LIMIT>;
};
};
};
};
gpio_keys {
compatible = "gpio-keys";
#address-cells = <1>;
#size-cells = <0>;
pinctrl-0 = <&pmx_buttons>;
pinctrl-names = "default";
power {
label = "Power Switch";
linux,code = <KEY_POWER>;
linux,input-type = <EV_SW>;
gpios = <&gpio0 15 GPIO_ACTIVE_LOW>;
};
function {
label = "Function Button";
linux,code = <KEY_CONFIG>;
gpios = <&gpio0 16 GPIO_ACTIVE_LOW>;
};
};
gpio_leds {
compatible = "gpio-leds";
pinctrl-names = "default";
pinctrl-0 = <&pmx_leds1 &pmx_leds2>;
system_red {
label = "ls421de:red:system";
gpios = <&gpio0 7 GPIO_ACTIVE_HIGH>;
};
led_power: power_white {
label = "ls421de:white:power";
gpios = <&gpio1 22 GPIO_ACTIVE_HIGH>;
default-state = "on";
};
led_failsafe: power_red {
label = "ls421de:red:power";
gpios = <&gpio1 23 GPIO_ACTIVE_HIGH>;
};
led_upgrade: power_orange {
label = "ls421de:orange:power";
gpios = <&gpio1 25 GPIO_ACTIVE_HIGH>;
};
led_boot: system_white {
label = "ls421de:white:system";
gpios = <&gpio1 27 GPIO_ACTIVE_HIGH>;
};
hdd1_red {
label = "ls421de:red:hdd1";
gpios = <&gpio1 29 GPIO_ACTIVE_HIGH>;
linux,default-trigger = "ata1";
};
hdd2_red {
label = "ls421de:red:hdd2";
gpios = <&gpio1 30 GPIO_ACTIVE_HIGH>;
linux,default-trigger = "ata2";
};
};
regulators {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <0>;
pinctrl-0 = <&pmx_power_usb &pmx_power_hdd1 &pmx_power_hdd2>;
pinctrl-names = "default";
usb_power: regulator@0 {
compatible = "regulator-fixed";
reg = <0>;
regulator-name = "USB";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
enable-active-high;
regulator-always-on;
regulator-boot-on;
gpio = <&gpio0 5 GPIO_ACTIVE_HIGH>;
};
sata1_power: regulator@1 {
compatible = "regulator-fixed";
reg = <1>;
regulator-name = "HDD1";
regulator-min-microvolt = <12000000>;
regulator-max-microvolt = <12000000>;
startup-delay-us = <2000000>;
enable-active-high;
regulator-always-on;
regulator-boot-on;
gpio = <&gpio0 8 GPIO_ACTIVE_HIGH>;
};
sata2_power: regulator@2 {
compatible = "regulator-fixed";
reg = <2>;
regulator-name = "HDD2";
regulator-min-microvolt = <12000000>;
regulator-max-microvolt = <12000000>;
startup-delay-us = <4000000>;
enable-active-high;
regulator-always-on;
regulator-boot-on;
gpio = <&gpio0 9 GPIO_ACTIVE_HIGH>;
};
};
};
&coherencyfab {
broken-idle;
};
&eth1 {
pinctrl-0 = <&ge1_rgmii_pins>;
pinctrl-names = "default";
status = "okay";
phy-handle = <&ethphy0>;
phy-connection-type = "rgmii-id";
};
&i2c0 {
pinctrl-0 = <&i2c0_pins>;
pinctrl-names = "default";
clock-frequency = <100000>;
status = "okay";
rs5c372a: rs5c372a@32 {
compatible = "ricoh,rs5c372a";
reg = <0x32>;
wakeup-source;
};
};
&mdio {
pinctrl-0 = <&mdio_pins>;
pinctrl-names = "default";
ethphy0: ethernet-phy@0 { /* Marvell 88E1518 */
reg = <0>;
marvell,reg-init = <0x3 0x10 0x1 0x1991>, /* LED function */
<0x3 0x11 0x1 0x4401>, /* LED polarity */
<0x3 0x12 0x1 0x4905>; /* LED timer */
};
};
&pciec {
status = "okay";
/* Connected to uPD720202 USB 3.0 Host */
pcie@1,0 {
status = "okay";
};
};
&pmsu {
pinctrl-0 = <&pmx_power_cpu>;
pinctrl-names = "default";
};
&rtc {
status = "disabled";
};
&sata {
nr-ports = <2>;
status = "okay";
#address-cells = <1>;
#size-cells = <0>;
hdd0_temp: sata-port@0 {
reg = <0>;
#thermal-sensor-cells = <0>;
};
hdd1_temp: sata-port@1 {
reg = <1>;
#thermal-sensor-cells = <0>;
};
};
&sdio {
pinctrl-0 = <&sdio_pins2>;
pinctrl-names = "default";
status = "okay";
/* No CD or WP GPIOs */
broken-cd;
};
&uart0 {
status = "okay";
};
&usb0 {
status = "okay";
};
&nand_controller {
status = "okay";
nand@0 {
reg = <0>;
label = "pxa3xx_nand-0";
nand-rb = <0>;
marvell,nand-keep-config;
nand-on-flash-bbt;
nand-ecc-strength = <4>;
nand-ecc-step-size = <512>;
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
partition@0 {
label = "kernel";
reg = <0x00000000 0x02000000>; /* 32 MiB */
};
partition@2000000 {
label = "ubi";
reg = <0x02000000 0x1e000000>; /* 480 MiB */
};
};
};
};
&spi0 {
status = "okay";
pinctrl-0 = <&spi0_pins2>;
pinctrl-names = "default";
spi-flash@0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "mxicy,mx25l8005", "jedec,spi-nor";
reg = <0>; /* Chip select 0 */
spi-max-frequency = <50000000>;
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
partition@0 {
reg = <0x00000 0xf0000>; /* 960 KiB*/
label = "u-boot";
read-only;
};
partition@f0000 {
reg = <0xf0000 0x10000>; /* 64 KiB */
label = "u-boot-env";
};
};
};
};
&pinctrl {
pmx_power_cpu: pmx-power-cpu {
marvell,pins = "mpp4";
marvell,function = "vdd";
};
pmx_power_usb: pmx-power-usb {
marvell,pins = "mpp5";
marvell,function = "gpo";
};
pmx_power_hdd1: pmx-power-hdd1 {
marvell,pins = "mpp8";
marvell,function = "gpio";
};
pmx_power_hdd2: pmx-power-hdd2 {
marvell,pins = "mpp9";
marvell,function = "gpo";
};
pmx_fan_lock: pmx-fan-lock {
marvell,pins = "mpp10";
marvell,function = "gpio";
};
pmx_hdd_present: pmx-hdd-present {
marvell,pins = "mpp11", "mpp12";
marvell,function = "gpio";
};
pmx_fan_high: pmx-fan-high {
marvell,pins = "mpp13";
marvell,function = "gpio";
};
pmx_fan_low: pmx-fan-low {
marvell,pins = "mpp14";
marvell,function = "gpio";
};
pmx_buttons: pmx-buttons {
marvell,pins = "mpp15", "mpp16";
marvell,function = "gpio";
};
pmx_leds1: pmx-leds {
marvell,pins = "mpp7", "mpp54", "mpp59", "mpp61";
marvell,function = "gpo";
};
pmx_leds2: pmx-leds {
marvell,pins = "mpp55", "mpp57", "mpp62";
marvell,function = "gpio";
};
};