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0ad49d368b
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>
(cherry picked from commit a58bcc9e67
)
219 lines
3.9 KiB
Plaintext
219 lines
3.9 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0-or-later
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#include "ar9344.dtsi"
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/input/input.h>
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/ {
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compatible = "mikrotik,routerboard-912uag-2hpnd", "qca,ar9342";
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model = "MikroTik RouterBOARD 912UAG-2HPnD";
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aliases {
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led-boot = &led_power;
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led-failsafe = &led_power;
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led-running = &led_power;
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led-upgrade = &led_power;
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};
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gpio_latch: gpio_latch {
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compatible = "gpio-latch";
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gpio-controller;
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#gpio-cells = <2>;
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gpios = <&gpio 0 GPIO_ACTIVE_HIGH>,
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<&gpio 1 GPIO_ACTIVE_HIGH>,
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<&gpio 2 GPIO_ACTIVE_HIGH>,
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<&gpio 3 GPIO_ACTIVE_HIGH>,
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<0>, /* Not connected */
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<&gpio 13 GPIO_ACTIVE_HIGH>,
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<&gpio 14 GPIO_ACTIVE_HIGH>,
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<&gpio 15 GPIO_ACTIVE_HIGH>,
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<&gpio 11 GPIO_ACTIVE_LOW>; /* Latch Enable */
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};
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nand_gpio {
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compatible = "mikrotik,rb91x-nand";
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gpios = <&gpio_latch 3 GPIO_ACTIVE_HIGH>, /* Read */
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<&gpio 4 GPIO_ACTIVE_HIGH>, /* Ready (RDY) */
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<&gpio_latch 5 GPIO_ACTIVE_LOW>, /* Chip Enable (nCE) */
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<&gpio_latch 6 GPIO_ACTIVE_HIGH>, /* Command Latch Enable (CLE) */
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<&gpio_latch 7 GPIO_ACTIVE_HIGH>, /* Address Latch Enable (ALE) */
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<&gpio 12 GPIO_ACTIVE_LOW>, /* Read/Write Enable (nRW) */
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<&gpio_latch 8 GPIO_ACTIVE_LOW>; /* Latch Enable (nLE) */
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partitions {
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compatible = "fixed-partitions";
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#size-cells = <1>;
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partition@0 {
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label = "booter";
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reg = <0x0 0x0040000>;
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read-only;
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};
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partition@40000 {
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label = "kernel";
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reg = <0x0040000 0x03c0000>;
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};
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partition@400000 {
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label = "ubi";
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reg = <0x0400000 0x7c00000>;
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};
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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_power: power {
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label = "green:power";
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gpios = <&gpio_latch 1 GPIO_ACTIVE_HIGH>;
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default-state = "on";
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};
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user {
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label = "green:user";
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gpios = <&gpio_latch 2 GPIO_ACTIVE_HIGH>;
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};
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led1 {
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label = "green:led1";
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gpios = <&ssr 0 GPIO_ACTIVE_HIGH>;
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};
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led2 {
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label = "green:led2";
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gpios = <&ssr 1 GPIO_ACTIVE_HIGH>;
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};
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led3 {
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label = "green:led3";
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gpios = <&ssr 2 GPIO_ACTIVE_HIGH>;
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};
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led4 {
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label = "green:led4";
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gpios = <&ssr 3 GPIO_ACTIVE_HIGH>;
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};
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led5 {
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label = "green:led5";
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gpios = <&ssr 4 GPIO_ACTIVE_HIGH>;
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};
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};
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gpio-export {
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compatible = "gpio-export";
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beeper {
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gpio-export,name = "beeper";
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gpio-export,output = <1>; /* Must be 1 to avoid EMI induced clicking noise */
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gpios = <&ssr 5 GPIO_ACTIVE_HIGH>;
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};
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usb_power {
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gpio-export,name = "power-usb";
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gpio-export,output = <1>;
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gpios = <&ssr 6 GPIO_ACTIVE_HIGH>;
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};
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pcie_power {
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gpio-export,name = "power-pcie";
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gpio-export,output = <0>;
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gpios = <&ssr 7 GPIO_ACTIVE_HIGH>;
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};
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};
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};
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&spi {
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status = "okay";
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compatible = "qca,ar7100-spi";
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cs-gpios = <0>, <&gpio_latch 0 GPIO_ACTIVE_LOW>;
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flash@0 {
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compatible = "jedec,spi-nor";
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reg = <0>;
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spi-max-frequency = <50000000>;
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partitions {
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compatible = "mikrotik,routerboot-partitions";
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#address-cells = <1>;
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#size-cells = <1>;
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partition@0 {
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label = "routerboot";
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reg = <0x0 0x0>;
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read-only;
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};
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hard_config: hard_config {
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read-only;
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};
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bios {
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size = <0x1000>;
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read-only;
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};
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soft_config {
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};
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};
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};
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ssr: ssr@1 {
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compatible = "fairchild,74hc595";
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gpio-controller;
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#gpio-cells = <2>;
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registers-number = <1>;
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reg = <1>;
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spi-max-frequency = <50000000>;
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};
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};
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&mdio0 {
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status = "okay";
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phy-mask = <0>;
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phy0: ethernet-phy@0 {
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reg = <0>;
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};
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};
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ð0 {
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status = "okay";
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phy-mode = "rgmii-id";
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phy-handle = <&phy0>;
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pll-data = <0x02000000 0x00000101 0x00001313>;
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gmac-config {
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device = <&gmac>;
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rgmii-gmac0 = <1>;
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rgmii-enabled = <1>;
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rxd-delay = <1>;
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txd-delay = <1>;
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};
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};
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&wmac {
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status = "okay";
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qca,no-eeprom;
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};
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&pcie {
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status = "okay";
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};
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&usb {
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status = "okay";
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};
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&usb_phy {
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status = "okay";
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};
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