openwrt/target/linux/ath79/dts/ar9342_mikrotik_routerboard-912uag-2hpnd.dts

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// SPDX-License-Identifier: GPL-2.0-or-later
#include "ar9344.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
/ {
compatible = "mikrotik,routerboard-912uag-2hpnd", "qca,ar9342";
model = "MikroTik RouterBOARD 912UAG-2HPnD";
aliases {
led-boot = &led_power;
led-failsafe = &led_power;
led-running = &led_power;
led-upgrade = &led_power;
};
gpio_key: gpio_key {
compatible = "mikrotik,gpio-rb91x-key";
gpio-controller;
#gpio-cells = <2>;
gpio = <&gpio 15 GPIO_ACTIVE_HIGH>;
};
gpio_latch: gpio_latch {
compatible = "gpio-latch";
gpio-controller;
#gpio-cells = <2>;
gpios = <&gpio 0 GPIO_ACTIVE_HIGH>,
<&gpio 1 GPIO_ACTIVE_HIGH>,
<&gpio 2 GPIO_ACTIVE_HIGH>,
<&gpio 3 GPIO_ACTIVE_HIGH>,
<0>, /* Not connected */
<&gpio 13 GPIO_ACTIVE_HIGH>,
<&gpio 14 GPIO_ACTIVE_HIGH>,
<&gpio_key 0 GPIO_ACTIVE_HIGH>,
<&gpio 11 GPIO_ACTIVE_LOW>; /* Latch Enable */
};
nand_gpio {
compatible = "mikrotik,rb91x-nand";
gpios = <&gpio_latch 3 GPIO_ACTIVE_HIGH>, /* Read */
<&gpio 4 GPIO_ACTIVE_HIGH>, /* Ready (RDY) */
<&gpio_latch 5 GPIO_ACTIVE_LOW>, /* Chip Enable (nCE) */
<&gpio_latch 6 GPIO_ACTIVE_HIGH>, /* Command Latch Enable (CLE) */
<&gpio_latch 7 GPIO_ACTIVE_HIGH>, /* Address Latch Enable (ALE) */
<&gpio 12 GPIO_ACTIVE_LOW>, /* Read/Write Enable (nRW) */
<&gpio_latch 8 GPIO_ACTIVE_LOW>, /* Latch Enable (nLE) */
<&gpio_key 2 GPIO_ACTIVE_HIGH>; /* Key poll disable */
partitions {
compatible = "fixed-partitions";
#size-cells = <1>;
partition@0 {
label = "booter";
reg = <0x0 0x0040000>;
read-only;
};
partition@40000 {
label = "kernel";
reg = <0x0040000 0x03c0000>;
};
partition@400000 {
label = "ubi";
reg = <0x0400000 0x7c00000>;
};
};
};
keys {
compatible = "gpio-keys-polled";
poll-interval = <20>;
button@0 {
label = "reset";
linux,code = <KEY_RESTART>;
gpios = <&gpio_key 1 GPIO_ACTIVE_LOW>;
};
};
leds {
compatible = "gpio-leds";
led_power: power {
label = "green:power";
gpios = <&gpio_latch 1 GPIO_ACTIVE_HIGH>;
default-state = "on";
};
user {
label = "green:user";
gpios = <&gpio_latch 2 GPIO_ACTIVE_HIGH>;
};
led1 {
label = "green:led1";
gpios = <&ssr 0 GPIO_ACTIVE_HIGH>;
};
led2 {
label = "green:led2";
gpios = <&ssr 1 GPIO_ACTIVE_HIGH>;
};
led3 {
label = "green:led3";
gpios = <&ssr 2 GPIO_ACTIVE_HIGH>;
};
led4 {
label = "green:led4";
gpios = <&ssr 3 GPIO_ACTIVE_HIGH>;
};
led5 {
label = "green:led5";
gpios = <&ssr 4 GPIO_ACTIVE_HIGH>;
};
};
gpio-export {
compatible = "gpio-export";
ath79: mikrotik: fix beeper phantom noise on RB912 Analysis done by Denis Kalashnikov: It seems that some ROS versions on some routerboard models have this bug: after silence boot (no output to uart, no beeps) beeper clicks when wireless traffic is. https://forum.mikrotik.com/viewtopic.php?f=3&t=92269 https://forum.mikrotik.com/viewtopic.php?t=63399 From these links: 1) Hello, I have RB951G-2HnD and I noticed strange thing when I loaded the device with some wireless traffic it produced strange sound - like hissing, fizzing etc. 2) Same problem still on 6.33, with silent boot enabled I hear buzzing noise on wireless load. 3) The sound is fixed in v5.19, it was a bug that caused beeper to make clicks. It also got fixed in RouterOS: * What's new in 5.19 (2012-Jul-16 10:51): fix ticking sound on RB411UAHL; * What's new in 6.38.3 (2017-Feb-07 09:52): rb3011 - fixed noise from buzzer after silent boot; I've checked with an oscilloscope that: * When on the ssr beeper pin is 0, on the beeper itself is 1 (~5V), and when on the ssr beeper pin is 1, on the beeper is 0 The beeper doesn't consume power, so 1 should be a default/idle value for the ssr beeper pin). * When there is wireless traffic (ping packets) in the background and the beeper clicks, I see pulses on the beeper itself, but no pulses on the ssr beeper pin (Q5 pin of 74hc595). When I manually toggle the ssr beeper pin I see pulses on both. So, it is likely that the phantom beeper clicks are caused by the EMI. Suggested-by: Denis Kalashnikov <denis281089@gmail.com> Reviewed-by: Sergey Ryazanov <ryazanov.s.a@gmail.com> Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2021-06-28 08:57:21 +00:00
beeper {
gpio-export,name = "beeper";
gpio-export,output = <1>; /* Must be 1 to avoid EMI induced clicking noise */
gpios = <&ssr 5 GPIO_ACTIVE_HIGH>;
};
usb_power {
gpio-export,name = "power-usb";
gpio-export,output = <1>;
gpios = <&ssr 6 GPIO_ACTIVE_HIGH>;
};
pcie_power {
gpio-export,name = "power-pcie";
gpio-export,output = <0>;
gpios = <&ssr 7 GPIO_ACTIVE_HIGH>;
};
};
};
&ref {
clock-frequency = <25000000>;
};
&spi {
status = "okay";
compatible = "qca,ar7100-spi";
cs-gpios = <0>, <&gpio_latch 0 GPIO_ACTIVE_LOW>;
flash@0 {
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <50000000>;
partitions {
compatible = "mikrotik,routerboot-partitions";
#address-cells = <1>;
#size-cells = <1>;
partition@0 {
label = "routerboot";
reg = <0x0 0x0>;
read-only;
};
hard_config {
read-only;
};
bios {
size = <0x1000>;
read-only;
};
soft_config {
};
};
};
ssr: ssr@1 {
compatible = "fairchild,74hc595";
gpio-controller;
#gpio-cells = <2>;
registers-number = <1>;
reg = <1>;
spi-max-frequency = <50000000>;
};
};
&mdio0 {
status = "okay";
phy-mask = <0>;
phy0: ethernet-phy@0 {
reg = <0>;
};
};
&eth0 {
status = "okay";
phy-mode = "rgmii-id";
phy-handle = <&phy0>;
pll-data = <0x02000000 0x00000101 0x00001313>;
gmac-config {
device = <&gmac>;
rgmii-gmac0 = <1>;
rxd-delay = <1>;
txd-delay = <1>;
};
};
&wmac {
status = "okay";
qca,no-eeprom;
};
&pcie {
status = "okay";
};
&usb {
status = "okay";
};
&usb_phy {
status = "okay";
};