Openwrt/target/linux/apm821xx/dts/netgear-wndr4700.dts
Christian Lamparter 252197f014 apm821xx: provide legacy interrupts for PCIe in DT
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>
2020-09-05 23:26:05 +02:00

520 lines
10 KiB
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// SPDX-License-Identifier: GPL-2.0-only
/*
* Device Tree Source for Netgear WNDR4700/WNDR4720 Series
*
* Copyright 2008 DENX Software Engineering, Stefan Roese <sr@denx.de>
*/
/dts-v1/;
#include "apm82181.dtsi"
#include <dt-bindings/thermal/thermal.h>
/ {
model = "Netgear WNDR4700/WNDR4720 Series";
compatible = "netgear,wndr4700", "apm,bluestone";
aliases {
serial0 = &UART0;
led-boot = &status;
led-failsafe = &failsafe;
led-running = &status;
led-upgrade = &status;
};
chosen {
stdout-path = "/plb/opb/serial@ef600300:115200n8";
};
thermal-zones {
cpu_thermal: cpu-thermal {
polling-delay-passive = <10000>; /* milliseconds */
polling-delay = <20000>; /* milliseconds */
thermal-sensors = <&temp0 1>;
/*
* REVISIT:
*
* Add the <&drive_temp>; sensor there and wire up
* the coefficients = <1 1>; property.
*
* Note: The kernel does not yet support more than
* one sensor (see of_thermal.c's function:
* thermal_of_build_thermal_zon()). Once this is
* implemented.
*/
trips {
/*
* Once the thermal governers are a bit smarter
* and do hysteresis properly, we can disable
* the fan when the HDD and CPU has < 39 C.
*/
cpu_alert0: board-alert0 {
temperature = <25000>;
hysteresis = <2000>;
type = "active";
};
cpu_alert1: cpu-alert1 {
temperature = <27000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "active";
};
cpu_alert2: cpu-alert2 {
temperature = <65000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "active";
};
cpu_alert3: cpu-alert3 {
temperature = <70000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "active";
};
cpu_alert4: cpu-alert4 {
temperature = <75000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "active";
};
cpu_alert5: cpu-alert5 {
temperature = <80000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "active";
};
cpu_alert6: cpu-alert6 {
temperature = <85000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "active";
};
cpu_crit: cpu-crit {
temperature = <90000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "critical";
};
};
cooling-maps {
map0 {
trip = <&cpu_alert0>;
cooling-device = <&fan0 THERMAL_NO_LIMIT 0>;
};
map1 {
trip = <&cpu_alert1>;
cooling-device = <&fan0 1 76>;
};
map2 {
trip = <&cpu_alert2>;
cooling-device = <&fan0 77 101>;
};
map3 {
trip = <&cpu_alert3>;
cooling-device = <&fan0 102 147>;
};
map4 {
trip = <&cpu_alert4>;
cooling-device = <&fan0 148 207>;
};
map5 {
trip = <&cpu_alert5>;
cooling-device = <&fan0 208 231>;
};
map6 {
trip = <&cpu_alert6>;
cooling-device =<&fan0 232 THERMAL_NO_LIMIT>;
};
};
};
};
};
&CRYPTO {
status = "okay";
};
&PKA {
status = "okay";
};
&TRNG {
status = "okay";
};
&SATA1 {
status = "okay";
/*
* This drive may have a temperature sensor with a
* thermal zone we can use for thermal control of the
* chassis temperature using the fan.
*/
drive_temp: sata-port@0 {
reg = <0>;
#thermal-sensor-cells = <0>;
};
};
&USBOTG0 {
status = "okay";
dr_mode = "host";
};
&EBC0 {
ndfc@1,0 {
status = "okay";
/* 128 MiB Nand Flash */
nand {
partition0,0@0 {
label = "NAND 128MiB 3,3V 8-bit";
reg = <0x00000000 0x08000000>;
read-only;
};
partition0,1@0 {
label = "uboot";
reg = <0x00000000 0x00180000>;
read-only;
};
partition0,2@180000 {
label = "device-tree";
reg = <0x00180000 0x00020000>;
};
partition0,3@180000 {
label = "kernel";
reg = <0x00180000 0x00380000>;
/*
* device-tree is @ 0x00180000 - 0x001fffff
* kernel starts from 0x200000.
* this is coded into netgear's u-boot.
*
* this partition will also contain a
* fake/empty rootfs at the end to fool
* Netgear's uboot rootfs integrety checks.
*/
};
partition0,4@500000 {
label = "ubi";
reg = <0x00500000 0x014e0000>;
};
partition0,5@19e0000 {
label = "config";
reg = <0x019e0000 0x00080000>;
read-only;
};
partition0,6@1a60000 {
label = "pot";
reg = <0x01a60000 0x00080000>;
read-only;
};
partition0,7@1ae0000 {
label = "traffic_meter";
reg = <0x01ae0000 0x00300000>;
read-only;
};
partition0,8@1de0000 {
label = "language";
reg = <0x01de0000 0x001c0000>;
read-only;
};
partition0,9@1fa0000 {
label = "ecos";
reg = <0x01fa0000 0x06020000>;
read-only;
};
partition0,10@7fc0000 {
label = "wifi_data";
reg = <0x07fc0000 0x00040000>;
read-only;
};
partition0,11@180000 {
label = "firmware";
reg = <0x00180000 0x01860000>;
read-only;
};
};
};
};
&UART0 {
status = "okay";
};
&GPIO0 {
status = "okay";
};
&IIC0 {
status = "okay";
fan0: fan@1b {
compatible = "microchip,tc654";
reg = <0x1b>;
cooling-min-level = <0>;
cooling-max-level = <255>;
#cooling-cells = <2>; /* min followed by max */
gpios = <&GPIO0 16 GPIO_ACTIVE_LOW>; /* fan status */
alarm-gpios = <&GPIO0 5 GPIO_ACTIVE_LOW>; /* fault */
interrupt-parent = <&UIC3>;
interrupts = <0x16 IRQ_TYPE_EDGE_FALLING>; /* fault */
};
temp0: temp@4d {
compatible = "gmt,g781";
reg = <0x4d>;
#thermal-sensor-cells = <1>;
/*
* The LM90 has two sensors:
* temp0 -> internal to LM90
* temp1 -> external NTC near CPU
*/
};
};
&EMAC0 {
status = "okay";
phy-handle = <&phy0>;
fifo-entry-size = <10>;
mdio {
#address-cells = <1>;
#size-cells = <0>;
phy0: ethernet-phy@0 {
device_type = "ethernet-phy";
reg = <0>;
qca,mib-poll-interval = <500>;
qca,ar8327-initvals = <
0x0010 0x40000000
0x0624 0x007f7f7f
0x0004 0x07a00000 /* PAD0_MODE */
0x000c 0x01000000 /* PAD6_MODE */
0x007c 0x0000007e /* PORT0_STATUS */
>;
};
};
};
&POB0 {
keys {
compatible = "gpio-keys";
reset {
label = "Reset button";
gpios = <&GPIO0 15 GPIO_ACTIVE_LOW>;
linux,code = <KEY_RESTART>;
interrupt-parent = <&UIC1>;
interrupts = <0x14 IRQ_TYPE_EDGE_FALLING>;
debounce-interval = <60>;
};
backup_hd {
label = "Backup HD button";
gpios = <&GPIO0 19 GPIO_ACTIVE_LOW>;
linux,code = <BTN_0>;
interrupt-parent = <&UIC1>;
interrupts = <0x1e IRQ_TYPE_EDGE_FALLING>;
debounce-interval = <60>;
};
rfkill {
label = "RFKILL button";
gpios = <&GPIO0 20 GPIO_ACTIVE_LOW>;
linux,code = <KEY_RFKILL>;
interrupt-parent = <&UIC1>;
interrupts = <0x1f IRQ_TYPE_EDGE_FALLING>;
debounce-interval = <60>;
};
wps {
label = "WPS button";
gpios = <&GPIO0 23 GPIO_ACTIVE_LOW>;
linux,code = <KEY_WPS_BUTTON>;
interrupt-parent = <&UIC2>;
interrupts = <0x19 IRQ_TYPE_EDGE_FALLING>;
debounce-interval = <60>;
};
};
leds {
compatible = "gpio-leds";
status: power-green {
label = "wndr4700:green:power";
gpios = <&GPIO0 8 GPIO_ACTIVE_HIGH>;
};
failsafe: power-orange {
label = "wndr4700:orange:power";
gpios = <&GPIO0 9 GPIO_ACTIVE_LOW>;
linux,default-trigger = "panic";
};
usb-blue {
label = "wndr4700:blue:usb";
gpios = <&GPIO0 10 GPIO_ACTIVE_HIGH>;
trigger-sources = <&usb2_port 1>, <&usb2_port 2>,
<&usb3_port 1>, <&usb3_port 2>;
linux,default-trigger = "usbport";
};
logo-white {
label = "wndr4700:white:logo";
gpios = <&GPIO0 11 GPIO_ACTIVE_HIGH>;
};
wan-yellow {
label = "wndr4700:yellow:wan";
gpios = <&GPIO0 3 GPIO_ACTIVE_HIGH>;
};
wan-green {
label = "wndr4700:green:wan";
gpios = <&GPIO0 12 GPIO_ACTIVE_HIGH>;
};
hd-green {
label = "wndr4700:green:hd";
gpios = <&GPIO0 14 GPIO_ACTIVE_HIGH>;
linux,default-trigger = "disk-activity";
};
hd-red {
label = "wndr4700:red:hd";
gpios = <&GPIO0 17 GPIO_ACTIVE_HIGH>;
};
wlan-blue {
label = "wndr4700:blue:wlan";
gpios = <&GPIO0 18 GPIO_ACTIVE_HIGH>;
linux,default-trigger = "phy0tpt";
};
};
};
&PCIE0 {
status = "okay";
/*
* relevant lspci topology:
*
* -+-[0000:40]---00.0-[41-7f]----00.0-[42-45]--+-02.0-[43]----00.0
* +-03.0-[44]----00.0
* \-04.0-[45]----00.0
*
*/
bridge@64,0 {
reg = <0x00400000 0 0 0 0>;
#address-cells = <3>;
#size-cells = <2>;
ranges;
bridge@65,0 {
/* IDT PES4T4 PCI Express Switch */
compatible = "pci111d,803a";
reg = <0x00410000 0 0 0 0>;
#address-cells = <3>;
#size-cells = <2>;
ranges;
bridge@66,2 {
compatible = "pci111d,803a";
reg = <0x00421000 0 0 0 0>;
#address-cells = <3>;
#size-cells = <2>;
ranges;
wifi0: wifi@67,0 {
/* Atheros AR9380 5GHz */
compatible = "pci168c,0030";
reg = <0x00430000 0 0 0 0>;
interrupts = <3>; /* INTC */
qca,no-eeprom;
/* wifi CAL & MAC is stored in nvram */
/*
* Because this was such a pain.
* Here's the full device path:
* pci0000:40/0000:40:00.0/0000:41:00.0/0000:42:02.0/0000:43:00.0
*/
};
};
bridge@66,3 {
compatible = "pci111d,803a";
reg = <0x00421800 0 0 0 0>;
#address-cells = <3>;
#size-cells = <2>;
ranges;
wifi1: wifi@68,0 {
/* Atheros AR9381 2.4GHz */
compatible = "pci168c,0033";
reg = <0x00440000 0 0 0 0>;
interrupts = <4>; /* INTD */
qca,no-eeprom;
/* wifi CAL & MAC is stored in nvram */
};
};
bridge@66,4 {
compatible = "pci111d,803a";
reg = <0x00422000 0 0 0 0>;
#address-cells = <3>;
#size-cells = <2>;
ranges;
usb1: usb@69,0 {
/* Renesas uPD720202 */
compatible = "pci1912,0015";
reg = <0x00450000 0 0 0 0>;
interrupts = <1>; /* INTA */
#address-cells = <1>;
#size-cells = <0>;
usb2_port: port@1 {
reg = <1>;
#trigger-source-cells = <1>;
};
usb3_port: port@2 {
reg = <2>;
#trigger-source-cells = <1>;
};
};
};
};
};
};
&MSI {
status = "okay";
};