Files
openwrt/target/linux/mediatek/dts/mt7981b-zbtlink-zbt-z8103ax.dts
Shiji Yang 6f33529a12 mediatek: dts: fix the broken memory node
Add the missing "device_type" property to fix the memory node. The
Linux kernel can not get the memory size without it. Though u-boot
can automatically fixup the memory node by adding the "device_type"
and "reg" properties if the CONFIG_ARCH_FIXUP_FDT_MEMORY symbol is
enabled, it's better not to rely on this optional feature. This
patch also adds the reg address for the memory node name to follow
the naming rules.

Signed-off-by: Shiji Yang <yangshiji66@outlook.com>
Link: https://github.com/openwrt/openwrt/pull/19741
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2025-08-24 13:22:08 +02:00

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// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
/dts-v1/;
#include "mt7981b.dtsi"
/ {
model = "Zbtlink ZBT-Z8103AX";
compatible = "zbtlink,zbt-z8103ax", "mediatek,mt7981";
aliases {
serial0 = &uart0;
led-boot = &led_status_green;
led-failsafe = &led_status_red;
led-running = &led_status_green;
led-upgrade = &led_status_green;
label-mac-device = &gmac0;
};
chosen {
stdout-path = "serial0:115200n8";
bootargs = "earlycon=uart8250,mmio32,0x11002000 console=ttyS0,115200n8";
};
memory@40000000 {
reg = <0 0x40000000 0 0x10000000>;
device_type = "memory";
};
gpio-keys {
compatible = "gpio-keys";
button-mesh {
label = "mesh";
linux,code = <BTN_0>;
linux,input-type = <EV_SW>;
gpios = <&pio 0 GPIO_ACTIVE_HIGH>;
};
button-reset {
label = "reset";
linux,code = <KEY_RESTART>;
gpios = <&pio 1 GPIO_ACTIVE_LOW>;
};
};
leds {
compatible = "gpio-leds";
led-wan {
color = <LED_COLOR_ID_GREEN>;
function = LED_FUNCTION_WAN;
gpios = <&pio 8 GPIO_ACTIVE_LOW>;
};
led-status-blue {
color = <LED_COLOR_ID_BLUE>;
function = LED_FUNCTION_STATUS;
gpios = <&pio 23 GPIO_ACTIVE_HIGH>;
};
led_status_green: led-status-green {
color = <LED_COLOR_ID_GREEN>;
function = LED_FUNCTION_STATUS;
gpios = <&pio 24 GPIO_ACTIVE_LOW>;
};
led_status_red: led-status-red {
color = <LED_COLOR_ID_RED>;
function = LED_FUNCTION_STATUS;
gpios = <&pio 25 GPIO_ACTIVE_LOW>;
};
led-wlan2g {
color = <LED_COLOR_ID_GREEN>;
function = LED_FUNCTION_WLAN;
gpios = <&pio 34 GPIO_ACTIVE_LOW>;
function-enumerator = <0>;
linux,default-trigger = "phy0tpt";
};
led-wlan5g {
color = <LED_COLOR_ID_GREEN>;
function = LED_FUNCTION_WLAN;
gpios = <&pio 35 GPIO_ACTIVE_LOW>;
function-enumerator = <1>;
linux,default-trigger = "phy1tpt";
};
};
};
&eth {
status = "okay";
gmac0: mac@0 {
/* LAN */
compatible = "mediatek,eth-mac";
reg = <0>;
phy-mode = "2500base-x";
nvmem-cell-names = "mac-address";
nvmem-cells = <&macaddr_factory_4 2>;
fixed-link {
speed = <2500>;
full-duplex;
pause;
};
};
gmac1: mac@1 {
/* WAN */
compatible = "mediatek,eth-mac";
reg = <1>;
phy-mode = "gmii";
phy-handle = <&int_gbe_phy>;
nvmem-cell-names = "mac-address";
nvmem-cells = <&macaddr_factory_4 3>;
};
};
&mdio_bus {
switch: switch@1f {
compatible = "mediatek,mt7531";
reg = <31>;
reset-gpios = <&pio 39 GPIO_ACTIVE_HIGH>;
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&pio>;
interrupts = <38 IRQ_TYPE_LEVEL_HIGH>;
};
};
&spi0 {
pinctrl-names = "default";
pinctrl-0 = <&spi0_flash_pins>;
status = "okay";
spi_nand@0 {
compatible = "spi-nand";
#address-cells = <1>;
#size-cells = <1>;
reg = <0>;
spi-max-frequency = <52000000>;
spi-tx-bus-width = <4>;
spi-rx-bus-width = <4>;
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
partition@0 {
label = "bl2";
reg = <0x0000000 0x0100000>;
read-only;
};
partition@100000 {
label = "u-boot-env";
reg = <0x100000 0x80000>;
};
partition@180000 {
label = "Factory";
reg = <0x180000 0x200000>;
read-only;
nvmem-layout {
compatible = "fixed-layout";
#address-cells = <1>;
#size-cells = <1>;
eeprom_factory: eeprom@0 {
reg = <0x0 0x1000>;
};
macaddr_factory_4: macaddr@4 {
compatible = "mac-base";
reg = <0x4 0x6>;
#nvmem-cell-cells = <1>;
};
};
};
partition@380000 {
label = "FIP";
reg = <0x380000 0x200000>;
read-only;
};
partition@580000 {
label = "ubi";
reg = <0x580000 0x4000000>;
};
};
};
};
&switch {
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
label = "lan1";
};
port@1 {
reg = <1>;
label = "lan2";
};
port@2 {
reg = <2>;
label = "lan3";
};
port@6 {
reg = <6>;
label = "cpu";
ethernet = <&gmac0>;
phy-mode = "2500base-x";
fixed-link {
speed = <2500>;
full-duplex;
pause;
};
};
};
};
&pio {
spi0_flash_pins: spi0-pins {
mux {
function = "spi";
groups = "spi0", "spi0_wp_hold";
};
conf-pu {
pins = "SPI0_CS", "SPI0_HOLD", "SPI0_WP";
drive-strength = <MTK_DRIVE_8mA>;
bias-pull-up = <MTK_PUPD_SET_R1R0_11>;
};
conf-pd {
pins = "SPI0_CLK", "SPI0_MOSI", "SPI0_MISO";
drive-strength = <MTK_DRIVE_8mA>;
bias-pull-down = <MTK_PUPD_SET_R1R0_11>;
};
};
};
&uart0 {
status = "okay";
};
&watchdog {
status = "okay";
};
&wifi {
status = "okay";
nvmem-cells = <&eeprom_factory>;
nvmem-cell-names = "eeprom";
};