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openwrt/target/linux/apm821xx/dts/wndr4700.dts
Christian Lamparter 49856a4bb5 apm821xx: make it possible to update the dtb partition on the WNDR4700 
Currently, the device-tree partition is marked as read-only.
Hence, userspace tools like mtd can't write into the partition.
This however will be necessary in case the DTB needs to be
updated.

This patch also adds the kernel.dtb image, so the compiled
DTB is exported as a file and available in the binary
directory along the firmware images.

Note: the u-boot does expects the dtb to be a uimage.

To update the dtb manually:
 1. copy the generated dtb to the router.
 2. mtd erase /dev/mtd2
 3. mtd write wndr4700.dtb /dev/mtd2

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2016-11-24 12:53:18 +01:00

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/*
* Device Tree Source for Netgear WNDR4700/WNDR4720 Series
*
* Copyright 2008 DENX Software Engineering, Stefan Roese <sr@denx.de>
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without
* any warranty of any kind, whether express or implied.
*/
/dts-v1/;
#include "apm82181.dtsi"
#include <dt-bindings/thermal/thermal.h>
/ {
model = "Netgear WNDR4700/WNDR4720 Series";
compatible = "netgear,wndr4700";
aliases {
serial0 = &UART0;
};
chosen {
linux,stdout-path = "/plb/opb/serial@ef600300";
};
thermal-zones {
cpu_thermal: cpu-thermal {
polling-delay-passive = <10000>; /* milliseconds */
polling-delay = <20000>; /* milliseconds */
thermal-sensors = <&temp0 1>;
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: cpu-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 = <850000>; /* 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 87>;
};
map2 {
trip = <&cpu_alert2>;
cooling-device = <&fan0 88 100>;
};
map3 {
trip = <&cpu_alert3>;
cooling-device = <&fan0 101 147>;
};
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";
};
&USBOTG0 {
status = "okay";
dr_mode = "host";
};
&EBC0 {
ndfc@1,0 {
status = "okay";
/* 128 MiB Nand Flash */
nand {
#address-cells = <1>;
#size-cells = <1>;
partition0,0@0x00000000 {
label = "NAND 128MiB 3,3V 8-bit";
reg = <0x00000000 0x08000000>;
read-only;
};
partition0,1@0x00000000 {
label = "uboot";
reg = <0x00000000 0x00180000>;
read-only;
};
partition0,2@0x00180000 {
label = "device-tree";
reg = <0x00180000 0x00020000>;
};
partition0,3@0x001a0000 {
label = "kernel";
reg = <0x001a0000 0x001e0000>;
/*
* will also contain a fake/empty
* rootfs to fool Netgear's uboot
* rootfs integrety checks.
*/
};
partition0,4@0x00380000 {
label = "ubi";
reg = <0x00380000 0x01660000>;
};
partition0,5@0x019e0000 {
label = "config";
reg = <0x019e0000 0x00080000>;
read-only;
};
partition0,6@0x01a60000 {
label = "pot";
reg = <0x01a60000 0x00080000>;
read-only;
};
partition0,7@0x01ae0000 {
label = "traffic_meter";
reg = <0x01ae0000 0x00300000>;
read-only;
};
partition0,8@0x01de0000 {
label = "language";
reg = <0x01de0000 0x001c0000>;
read-only;
};
partition0,9@0x01fa0000 {
label = "ecos";
reg = <0x01fa0000 0x06020000>;
read-only;
};
partition0,10@0x07fc0000 {
label = "wifi_data";
reg = <0x07fc0000 0x00040000>;
read-only;
};
partition0,11@0x00180000 {
label = "firmware";
reg = <0x00180000 0x01860000>;
read-only;
};
};
};
};
&UART0 {
status = "okay";
};
&GPIO0 {
status = "okay";
#interrupt-cells = <2>;
interrupt-controller;
interrupts-extended = <&UIC1 0x14>,
<&UIC1 0x1e>,
<&UIC1 0x1f>,
<&UIC2 0x19>;
};
&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>;
mdio {
#address-cells = <1>;
#size-cells = <0>;
phy0: ethernet-phy@0 {
device_type = "ethernet-phy";
reg = <0>;
qca,ar8327-initvals = <
0x0010 0x40000000
0x0624 0x007f7f7f
0x0004 0x07a00000 /* PAD0_MODE */
0x000c 0x01000000 /* PAD6_MODE */
0x007c 0x0000007e /* PORT0_STATUS */
>;
};
};
};
&POB0 {
gpio_keys_polled {
compatible = "gpio-keys-polled";
#address-cells = <1>;
#size-cells = <0>;
#interrupt-cells = <2>;
autorepeat;
poll-interval = <60>; /* 3 * 20 = 60ms */
reset {
label = "Reset button";
linux,code = <KEY_RESTART>;
gpios = <&GPIO0 15 GPIO_ACTIVE_HIGH>;
interrupt-parent = <&UIC1>;
interrupts = <0x14 IRQ_TYPE_EDGE_FALLING>;
};
backup_hd {
label = "Backup HD button";
gpios = <&GPIO0 19 GPIO_ACTIVE_HIGH>;
linux,code = <BTN_0>;
interrupt-parent = <&UIC1>;
interrupts = <0x1e IRQ_TYPE_EDGE_FALLING>;
};
rfkill {
label = "RFKILL button";
gpios = <&GPIO0 20 GPIO_ACTIVE_HIGH>;
linux,code = <KEY_RFKILL>;
interrupt-parent = <&UIC1>;
interrupts = <0x1f IRQ_TYPE_EDGE_FALLING>;
};
wps {
label = "WPS button";
gpios = <&GPIO0 23 GPIO_ACTIVE_HIGH>;
linux,code = <KEY_WPS_BUTTON>;
interrupt-parent = <&UIC2>;
interrupts = <0x19 IRQ_TYPE_EDGE_FALLING>;
};
sdcard {
label = "SDCard inserted";
gpios = <&GPIO0 7 GPIO_ACTIVE_LOW>;
linux,code = <BTN_1>;
};
};
gpio-leds {
compatible = "gpio-leds";
power-green {
label = "wndr4700:green:power";
gpios = <&GPIO0 8 GPIO_ACTIVE_HIGH>;
};
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>;
};
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>;
};
hd-red {
label = "wndr4700:red:hd";
gpios = <&GPIO0 17 GPIO_ACTIVE_HIGH>;
};
wlan-blue {
label = "wndr4700:blue:wlan";
gpios = <&GPIO0 18 GPIO_ACTIVE_HIGH>;
};
};
};
&PCIE0 {
status = "okay";
};
&MSI {
status = "okay";
};
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