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252197f014
Devices with PCIe-Switches like the WNDR4700, MR24 and WNDAP660 need to have the interrupts property specified in the device-tree for the legacy pci interrupt signaling method to work. If the proper interrupt value is not specified, the default INTA IRQ 12 is taken for all devices. This is especially bad, if the device is setup to use INTC, because these interrupts will not be serviced. Russell Senior reported his experience on the MR24: "The symptom is client devices can't see the beacons. Wifi ifaces appear, can scan and hear other networks, but clients can't see the MR24's SSIDs." (The interrupts-property on the WNDAP620 was optional since it uses INTA by default. Likewise the MX60W is in the same category) Reported-by: Russell Senior <russell@personaltelco.net> Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
240 lines
4.1 KiB
Plaintext
240 lines
4.1 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Device Tree Source for Meraki MR24 (Ikarem)
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*
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* Copyright (C) 2016 Chris Blake <chrisrblake93@gmail.com>
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*
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* Based on Cisco Meraki GPL Release r23-20150601 MR24 DTS
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*/
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/dts-v1/;
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#include "apm82181.dtsi"
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/ {
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model = "Meraki MR24 Access Point";
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compatible = "meraki,mr24", "meraki,ikarem", "apm,bluestone";
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aliases {
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serial0 = &UART1;
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led-boot = &status;
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led-failsafe = &failsafe;
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led-running = &status;
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led-upgrade = &status;
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};
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chosen {
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stdout-path = "/plb/opb/serial@ef600400";
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};
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};
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&CRYPTO {
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status = "okay";
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};
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&PKA {
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status = "okay";
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};
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&TRNG {
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status = "okay";
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};
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&EBC0 {
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/* Ikarem has 32MB of NAND */
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ndfc@1,0 {
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status = "okay";
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/* 32 MiB NAND Flash */
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nand {
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partition@0 {
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label = "u-boot";
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reg = <0x00000000 0x00150000>;
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read-only;
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};
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partition@150000 {
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/*
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* The u-boot environment size is one NAND
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* block (16KiB). u-boot allocates four NAND
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* blocks (64KiB) in order to have spares
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* around for bad block management
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*/
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label = "u-boot-env";
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reg = <0x00150000 0x00010000>;
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read-only;
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};
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partition@160000 {
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/*
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* redundant u-boot environment.
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* has to be kept it in sync with the
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* data in "u-boot-env".
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*/
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label = "u-boot-env-redundant";
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reg = <0x00160000 0x00010000>;
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read-only;
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};
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partition@170000 {
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label = "oops";
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reg = <0x00170000 0x00010000>;
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};
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partition@180000 {
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label = "ubi";
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reg = <0x00180000 0x01e80000>;
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};
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};
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};
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};
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&UART1 {
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status = "okay";
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};
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&GPIO0 {
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status = "okay";
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};
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&IIC0 {
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status = "okay";
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/* Boot ROM is at 0x52-0x53, do not touch */
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/* Unknown chip at 0x6e, not sure what it is */
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};
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&EMAC0 {
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status = "okay";
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phy-mode = "rgmii-id";
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phy-map = <0x2>;
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phy-address = <0x1>;
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phy-handle = <&phy>;
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mdio {
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#address-cells = <1>;
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#size-cells = <0>;
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phy: phy@1 {
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compatible = "ethernet-phy-ieee802.3-c22";
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reg = <1>;
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};
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};
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};
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&POB0 {
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leds {
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compatible = "gpio-leds";
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status: power-green {
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label = "mr24:green:power";
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gpios = <&GPIO0 18 GPIO_ACTIVE_LOW>;
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};
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failsafe: power-orange {
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label = "mr24:orange:power";
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gpios = <&GPIO0 19 GPIO_ACTIVE_LOW>;
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};
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lan {
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label = "mr24:green:wan";
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gpios = <&GPIO0 17 GPIO_ACTIVE_LOW>;
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};
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ssi-0 {
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label = "mr24:green:wifi1";
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gpios = <&GPIO0 23 GPIO_ACTIVE_LOW>;
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};
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ssi-1 {
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label = "mr24:green:wifi2";
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gpios = <&GPIO0 22 GPIO_ACTIVE_LOW>;
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};
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ssi-2 {
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label = "mr24:green:wifi3";
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gpios = <&GPIO0 21 GPIO_ACTIVE_LOW>;
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};
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ssi-3 {
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label = "mr24:green:wifi4";
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gpios = <&GPIO0 20 GPIO_ACTIVE_LOW>;
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};
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};
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keys {
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compatible = "gpio-keys";
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reset {
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/* Label as per Meraki's "MR24 Installation Guide" */
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label = "Factory Reset Button";
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linux,code = <KEY_RESTART>;
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interrupt-parent = <&UIC1>;
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interrupts = <0x15 IRQ_TYPE_EDGE_FALLING>;
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gpios = <&GPIO0 16 GPIO_ACTIVE_LOW>;
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debounce-interval = <60>;
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};
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};
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};
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&PCIE0 {
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status = "okay";
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/*
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* relevant lspci topology:
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*
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* -+-[0000:40]---00.0-[41-7f]----00.0-[42-45]--+-02.0-[43]----00.0
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* +-03.0-[44]----00.0
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*
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*/
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bridge@64,0 {
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reg = <0x00400000 0 0 0 0>;
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#address-cells = <3>;
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#size-cells = <2>;
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ranges;
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bridge@65,0 {
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/* IDT PES3T3 PCI Express Switch */
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compatible = "pci111d,8039";
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reg = <0x00410000 0 0 0 0>;
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#address-cells = <3>;
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#size-cells = <2>;
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ranges;
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bridge@66,2 {
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compatible = "pci111d,8039";
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reg = <0x00421000 0 0 0 0>;
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#address-cells = <3>;
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#size-cells = <2>;
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ranges;
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wifi0: wifi@67,0 {
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/* Atheros AR9380 2.4GHz */
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compatible = "pci168c,0030";
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reg = <0x00430000 0 0 0 0>;
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interrupts = <3>; /* INTC 4.1.1 */
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};
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};
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bridge@66,3 {
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compatible = "pci111d,8039";
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reg = <0x00421800 0 0 0 0>;
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#address-cells = <3>;
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#size-cells = <2>;
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ranges;
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wifi1: wifi@68,0 {
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/* Atheros AR9380 5GHz */
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compatible = "pci168c,0030";
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reg = <0x00440000 0 0 0 0>;
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interrupts = <4>; /* INTD 4.1.1 */
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};
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};
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};
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};
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};
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&MSI {
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status = "okay";
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};
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