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6cc14bf66a
Telenor quirks
--------------
The operator specific firmware running on the Telenor branded
ZyXEL EX5700 includes U-Boot modifications affecting the OpenWrt
installation.
Notable changes to U-Boot include
- environment is stored in RAM and reset to defaults when power
cycled
- dual partition scheme with "nomimal" or "rescue" systems, falling
back to "rescue" unless the OS signals success in 3 attempts
- several runtime additions to the device-tree
Some of these modifications have side effects requiring workarounds
- U-Boot modifies /chosen/bootargs in an unsafe manner, and will crash
unless this node exists
- U-Boot verifies that the selected rootfs UBI volume exists, and
refuses to boot if it doesn't. The chosen "rootfs" volume must contain
a squashfs signature even for tftp or initramfs booting.
- U-Boot parses the "factoryparams" UBI volume, setting the "ethaddr"
variable to the label mac. But "factoryparams" does not always
exist. Instead there is a "RIP" volume containing all the factory
data. Copying the "RIP" volume to "factoryparams" will fix this
Hardware
--------
SOC: MediaTek MT7986
RAM: 1GB DDR4
FLASH: 512MB SPI-NAND (Mikron xxx)
WIFI: Mediatek MT7986 802.11ax 5 GHz
Mediatek MT7916 DBDC 802.11ax 2.4 + 6 GHz
ETH: MediaTek MT7531 Switch + SoC
3 x builtin 1G phy (lan1, lan2, lan3)
2 x MaxLinear GPY211C 2.5 N-Base-T phy (lan4, wan)
USB: 1 x USB 3.2 Enhanced SuperSpeed port
UART: 3V3 115200 8N1 (Pinout: GND KEY RX TX VCC)
Installation
------------
1. Download the OpenWrt initramfs image. Copy the image to a TFTP server
reachable at 192.168.1.2/24. Rename the image to C0A80101.img.
2. Connect the TFTP server to lan1, lan2 or lan3. Connect to the serial
console, Interrupt the autoboot process by pressing ESC when prompted.
3. Download and boot the OpenWrt initramfs image.
$ env set uboot_bootcount 0
$ env set firmware nominal
$ tftpboot
$ bootm
4. Wait for OpenWrt to boot. Transfer the sysupgrade image to the device
using scp and install using sysupgrade.
$ sysupgrade -n <path-to-sysupgrade.bin>
Missing features
----------------
- The "lan1", "lan2" and "lan3" port LEDs are driven by the switch but
OpenWrt does not correctly configure the output.
- The "lan4" and "wan" port LEDs are driven by the GPH211C phys and
not configured by OpenWrt.
Signed-off-by: Bjørn Mork <bjorn@mork.no>
375 lines
6.2 KiB
Plaintext
375 lines
6.2 KiB
Plaintext
// SPDX-License-Identifier: (GPL-2.0 OR MIT)
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/dts-v1/;
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#include <dt-bindings/input/input.h>
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#include <dt-bindings/gpio/gpio.h>
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#include "mt7986a.dtsi"
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/ {
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model = "ZyXEL EX5700 (Telenor)";
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compatible = "zyxel,ex5700-telenor", "mediatek,mt7986a";
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aliases {
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serial0 = &uart0;
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ethernet0 = &gmac0;
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led-boot = &led_status_green;
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led-failsafe = &led_status_green;
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led-running = &led_status_green;
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led-upgrade = &led_status_amber;
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};
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chosen {
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stdout-path = "serial0:115200n8";
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// Stock U-Boot crashes unless /chosen/bootargs exists
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bootargs = "earlycon=uart8250,mmio32,0x11002000 console=ttyS0,115200n8";
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};
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memory {
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reg = <0 0x40000000 0 0x40000000>;
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};
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reg_3p3v: regulator-3p3v {
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compatible = "regulator-fixed";
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regulator-name = "fixed-3.3V";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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regulator-boot-on;
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regulator-always-on;
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};
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reg_5v: regulator-5v {
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compatible = "regulator-fixed";
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regulator-name = "fixed-5V";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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regulator-boot-on;
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regulator-always-on;
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};
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keys {
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compatible = "gpio-keys";
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poll-interval = <20>;
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reset-button {
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label = "reset";
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gpios = <&pio 9 GPIO_ACTIVE_LOW>;
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linux,code = <KEY_RESTART>;
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};
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wps-button {
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label = "wps";
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gpios = <&pio 10 GPIO_ACTIVE_LOW>;
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linux,code = <KEY_WPS_BUTTON>;
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};
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};
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leds {
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compatible = "gpio-leds";
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red1 {
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label = "red:net";
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gpios = <&pio 23 GPIO_ACTIVE_HIGH>;
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default-state = "off";
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};
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green1 {
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label = "green:net";
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gpios = <&pio 25 GPIO_ACTIVE_HIGH>;
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default-state = "off";
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};
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amber1 {
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label = "amber:net";
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gpios = <&pio 29 GPIO_ACTIVE_HIGH>;
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default-state = "off";
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};
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white2 {
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label = "white:status";
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gpios = <&pio 16 GPIO_ACTIVE_HIGH>;
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default-state = "off";
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};
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red2 {
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label = "red:status";
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gpios = <&pio 17 GPIO_ACTIVE_HIGH>;
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default-state = "off";
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};
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led_status_green: green2 {
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label = "green:status";
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gpios = <&pio 31 GPIO_ACTIVE_HIGH>;
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default-state = "off";
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};
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led_status_amber: amber2 {
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label = "amber:status";
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gpios = <&pio 18 GPIO_ACTIVE_HIGH>;
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default-state = "off";
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};
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};
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};
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ð {
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status = "okay";
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pinctrl-names = "default";
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pinctrl-0 = <ð_pins>;
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gmac0: mac@0 {
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compatible = "mediatek,eth-mac";
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reg = <0>;
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phy-mode = "2500base-x";
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fixed-link {
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speed = <2500>;
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full-duplex;
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pause;
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};
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};
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mac@1 {
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compatible = "mediatek,eth-mac";
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reg = <1>;
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label = "wan";
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phy-mode = "2500base-x";
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phy-handle = <&phy6>;
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};
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mdio: mdio-bus {
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#address-cells = <1>;
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#size-cells = <0>;
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};
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};
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&mdio {
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reset-gpios = <&pio 6 GPIO_ACTIVE_LOW>;
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reset-delay-us = <50000>;
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reset-post-delay-us = <20000>;
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phy5: phy@5 {
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compatible = "ethernet-phy-ieee802.3-c45";
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reg = <5>;
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};
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phy6: phy@6 {
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compatible = "ethernet-phy-ieee802.3-c45";
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reg = <6>;
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};
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switch: switch@1f {
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compatible = "mediatek,mt7531";
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reg = <31>;
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reset-gpios = <&pio 5 GPIO_ACTIVE_HIGH>;
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interrupt-controller;
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#interrupt-cells = <1>;
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interrupt-parent = <&pio>;
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interrupts = <66 IRQ_TYPE_LEVEL_HIGH>;
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};
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};
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&switch {
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ports {
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#address-cells = <1>;
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#size-cells = <0>;
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port@0 {
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reg = <0>;
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label = "lan3";
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};
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port@1 {
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reg = <1>;
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label = "lan2";
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};
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port@2 {
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reg = <2>;
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label = "lan1";
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};
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port@5 {
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reg = <5>;
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label = "lan4";
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phy-mode = "2500base-x";
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phy-handle = <&phy5>;
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};
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port@6 {
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reg = <6>;
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ethernet = <&gmac0>;
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phy-mode = "2500base-x";
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fixed-link {
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speed = <2500>;
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full-duplex;
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pause;
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};
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};
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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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&pcie {
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pinctrl-names = "default";
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pinctrl-0 = <&pcie_pins>;
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status = "okay";
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pcie@0,0 {
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reg = <0x0000 0 0 0 0>;
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wifi@0,0 {
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compatible = "mediatek,mt76";
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reg = <0x0000 0 0 0 0>;
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mediatek,mtd-eeprom = <&factory 0xa0000>;
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};
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};
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};
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&pcie_phy {
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status = "okay";
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};
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&watchdog {
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status = "okay";
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};
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&wifi {
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status = "okay";
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pinctrl-names = "default";
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pinctrl-0 = <&wf_5g_pins>;
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mediatek,mtd-eeprom = <&factory 0x0>;
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};
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&pio {
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eth_pins: eth-pins {
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mux {
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function = "eth";
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groups = "switch_int", "mdc_mdio";
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};
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};
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pcie_pins: pcie-pins {
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mux {
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function = "pcie";
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groups = "pcie_pereset"; // "pcie_clk" and "pcie_wake" is unused?
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};
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};
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spi_flash_pins: spi-flash-pins-33-to-38 {
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mux {
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function = "spi";
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groups = "spi0", "spi0_wp_hold";
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};
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conf-pu {
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pins = "SPI2_CS", "SPI2_HOLD", "SPI2_WP";
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drive-strength = <8>;
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mediatek,pull-up-adv = <0>; /* bias-disable */
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};
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conf-pd {
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pins = "SPI2_CLK", "SPI2_MOSI", "SPI2_MISO";
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drive-strength = <8>;
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mediatek,pull-down-adv = <0>; /* bias-disable */
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};
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};
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wf_5g_pins: wf_5g-pins {
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mux {
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function = "wifi";
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groups = "wf_5g";
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};
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conf {
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pins = "WF1_HB1", "WF1_HB2", "WF1_HB3", "WF1_HB4",
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"WF1_HB0", "WF1_HB5", "WF1_HB6", "WF1_HB7",
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"WF1_HB8", "WF1_TOP_CLK", "WF1_TOP_DATA";
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drive-strength = <4>;
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};
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};
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};
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&spi0 {
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pinctrl-names = "default";
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pinctrl-0 = <&spi_flash_pins>;
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cs-gpios = <0>, <0>;
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status = "okay";
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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 = <20000000>;
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};
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flash@1 {
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compatible = "spi-nand";
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reg = <1>;
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mediatek,nmbm;
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mediatek,bmt-max-ratio = <1>;
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mediatek,bmt-max-reserved-blocks = <64>;
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spi-max-frequency = <20000000>;
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spi-tx-buswidth = <4>;
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spi-rx-buswidth = <4>;
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partitions {
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compatible = "fixed-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 = "BL2";
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reg = <0x000000 0x100000>;
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read-only;
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};
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partition@100000 {
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label = "u-boot-env";
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reg = <0x100000 0x80000>;
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};
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factory: partition@180000 {
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label = "Factory";
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reg = <0x180000 0x200000>;
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read-only;
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compatible = "nvmem-cells";
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#address-cells = <1>;
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#size-cells = <1>;
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};
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partition@380000 {
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label = "FIP";
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reg = <0x380000 0x200000>;
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read-only;
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};
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partition@580000 {
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label = "ubi";
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reg = <0x580000 0x1da80000>;
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};
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};
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};
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};
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&ssusb {
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vusb33-supply = <®_3p3v>;
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vbus-supply = <®_5v>;
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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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&uart0 {
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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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