[PATCH] ramips: add support for Zbtlink ZBT-WG1602
Sergey Ryazanov
ryazanov.s.a at gmail.com
Tue Nov 16 02:10:25 PST 2021
Zbtlink ZBT-WG1602 is a Wi-Fi router intendent to use with WWAN
(UMTS/LTE/3G/4G) modems. The router board offsers a couple of miniPCIe
slots with USB and SIM only and another one pure miniPCIe slot as well
as five Gigabit Ethernet ports (4xLAN + WAN).
Specification:
* SoC: MT7621A
* RAM: 256/512 MiB
* Flash: 16/32 MiB (SPI NOR)
* external watchdog (looks like Torexsemi XC6131B)
* Eth: 10/100/100 Mbps Ethernet x5 ports (4xLAN + WAN)
* WLAN 2GHz: MT7603EN (.11n, MIMO 2x2)
* WLAN 5GHz: MT7612EN (.11ac, MIMO 2x2)
* WLAN Ants: detachable x2, shared by 2GHz & 5GHz radios
* miniPCIe: 2x slots with USB&SIM + 1x slot with regular PCIe bus
* WWAN Ants: detachable x4
* External storage: microSD (SDXC) slot
* USB: 2.0 Type-A port
* LED: 11 (5 per Eth phy, 3 SoC controlled, 2 WLAN 2/5 controlled, 1
power indicator)
* Button: 1 (reset)
* UART: console (115200 baud)
* Power: DC jack (12 V / 2.5 A)
Additional HW information:
* SoC USB port #1 is shared by internal miniPCIe slot and external
Type-A USB port, USB D+/D- lines are toggled between ports using a
GPIO controlled DPDT switch.
* Power of the USB enabled miniPCIe slots can be individually controlled
using dedicated GPIO lines.
* Vendor firmware feeds the external watchdog with 1s pulses. GPIO
watchdog driver is able to either generate a 1us pulses or toggle the
output line. 1us is not enough for the external watchod timer, so
the line toggling driver mode is utilized.
Installation:
Vendor's firmware is OpenWrt (LEDE) based, so the sysupgrade image can
be directly used to install OpenWrt. Firmware must be upgraded using the
'force' and 'do not save configuration' command line options (or
correspondig web interface checkboxes) since the vendor firmware is from
the pre-DSA era.
Signed-off-by: Sergey Ryazanov <ryazanov.s.a at gmail.com>
---
.../dts/mt7621_zbtlink_zbt-wg1602-16m.dts | 10 +
.../ramips/dts/mt7621_zbtlink_zbt-wg1602.dtsi | 206 ++++++++++++++++++
target/linux/ramips/image/mt7621.mk | 12 +
3 files changed, 228 insertions(+)
create mode 100644 target/linux/ramips/dts/mt7621_zbtlink_zbt-wg1602-16m.dts
create mode 100644 target/linux/ramips/dts/mt7621_zbtlink_zbt-wg1602.dtsi
diff --git a/target/linux/ramips/dts/mt7621_zbtlink_zbt-wg1602-16m.dts b/target/linux/ramips/dts/mt7621_zbtlink_zbt-wg1602-16m.dts
new file mode 100644
index 0000000000..216c7b3cf0
--- /dev/null
+++ b/target/linux/ramips/dts/mt7621_zbtlink_zbt-wg1602-16m.dts
@@ -0,0 +1,10 @@
+#include "mt7621_zbtlink_zbt-wg1602.dtsi"
+
+/ {
+ compatible = "zbtlink,zbt-wg1602-16m", "zbtlink,zbt-wg1602", "mediatek,mt7621-soc";
+ model = "Zbtlink ZBT-WG1602 (16M)";
+};
+
+&firmware {
+ reg = <0x50000 0xfb0000>;
+};
diff --git a/target/linux/ramips/dts/mt7621_zbtlink_zbt-wg1602.dtsi b/target/linux/ramips/dts/mt7621_zbtlink_zbt-wg1602.dtsi
new file mode 100644
index 0000000000..e377a13444
--- /dev/null
+++ b/target/linux/ramips/dts/mt7621_zbtlink_zbt-wg1602.dtsi
@@ -0,0 +1,206 @@
+#include "mt7621.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+ compatible = "zbtlink,zbt-wg1602", "mediatek,mt7621-soc";
+
+ aliases {
+ led-boot = &led_sm;
+ led-failsafe = &led_sm;
+ led-running = &led_sm;
+ led-upgrade = &led_sm;
+ label-mac-device = &gmac0;
+ };
+
+ chosen {
+ bootargs = "console=ttyS0,115200";
+ };
+
+ keys {
+ compatible = "gpio-keys";
+
+ reset {
+ label = "reset";
+ gpios = <&gpio 18 GPIO_ACTIVE_LOW>;
+ linux,code = <KEY_RESTART>;
+ };
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ led_sm: sm {
+ label = "green:sm";
+ gpios = <&gpio 4 GPIO_ACTIVE_LOW>;
+ };
+
+ 4g1 {
+ label = "green:4g1";
+ gpios = <&gpio 10 GPIO_ACTIVE_LOW>;
+ };
+
+ 4g2 {
+ label = "green:4g2";
+ gpios = <&gpio 12 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+ watchdog {
+ compatible = "linux,wdt-gpio";
+ gpios = <&gpio 3 GPIO_ACTIVE_HIGH>;
+ hw_algo = "toggle";
+ /* hw_margin_ms is actually ~120s but driver limits it to 60s */
+ hw_margin_ms = <60000>;
+ always-running;
+ };
+
+ gpio-export {
+ compatible = "gpio-export";
+ #size-cells = <0>;
+
+ 4g1-pwr {
+ gpio-export,name = "4g1-pwr";
+ gpio-export,output = <1>;
+ gpios = <&gpio 8 GPIO_ACTIVE_HIGH>;
+ };
+
+ 4g2-pwr {
+ gpio-export,name = "4g2-pwr";
+ gpio-export,output = <1>;
+ gpios = <&gpio 7 GPIO_ACTIVE_HIGH>;
+ };
+
+ ext-usb {
+ gpio-export,name = "ext-usb";
+ gpio-export,output = <1>;
+ gpios = <&gpio 6 GPIO_ACTIVE_LOW>;
+ };
+ };
+};
+
+&sdhci {
+ status = "okay";
+};
+
+&spi0 {
+ status = "okay";
+
+ flash at 0 {
+ compatible = "jedec,spi-nor";
+ reg = <0>;
+ spi-max-frequency = <10000000>;
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition at 0 {
+ label = "u-boot";
+ reg = <0x0 0x30000>;
+ read-only;
+ };
+
+ partition at 30000 {
+ label = "u-boot-env";
+ reg = <0x30000 0x10000>;
+ read-only;
+ };
+
+ factory: partition at 40000 {
+ label = "factory";
+ reg = <0x40000 0x10000>;
+ read-only;
+ };
+
+ firmware: partition at 50000 {
+ compatible = "denx,uimage";
+ label = "firmware";
+ };
+ };
+ };
+};
+
+&pcie {
+ status = "okay";
+};
+
+&pcie0 {
+ wifi0: wifi at 0,0 {
+ compatible = "pci14c3,7603";
+ reg = <0x0000 0 0 0 0>;
+ mediatek,mtd-eeprom = <&factory 0x0000>;
+ };
+};
+
+&pcie1 {
+ wifi1: wifi at 0,0 {
+ compatible = "pci14c3,7662";
+ reg = <0x0000 0 0 0 0>;
+ mediatek,mtd-eeprom = <&factory 0x8000>;
+ ieee80211-freq-limit = <5000000 6000000>;
+
+ led {
+ led-sources = <2>;
+ };
+ };
+};
+
+&gmac0 {
+ nvmem-cells = <&macaddr_factory_e000>;
+ nvmem-cell-names = "mac-address";
+};
+
+&switch0 {
+ ports {
+ port at 0 {
+ status = "okay";
+ label = "lan1";
+ };
+
+ port at 1 {
+ status = "okay";
+ label = "lan2";
+ };
+
+ port at 2 {
+ status = "okay";
+ label = "lan3";
+ };
+
+ port at 3 {
+ status = "okay";
+ label = "lan4";
+ };
+
+ port at 4 {
+ status = "okay";
+ label = "wan";
+ nvmem-cells = <&macaddr_factory_e006>;
+ nvmem-cell-names = "mac-address";
+ };
+ };
+};
+
+&state_default {
+ gpio {
+ groups = "i2c", "rgmii2", "uart2", "wdt";
+ function = "gpio";
+ };
+};
+
+&factory {
+ compatible = "nvmem-cells";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ macaddr_factory_e000: macaddr at e000 {
+ reg = <0xe000 0x6>;
+ };
+
+ macaddr_factory_e006: macaddr at e006 {
+ reg = <0xe006 0x6>;
+ };
+};
diff --git a/target/linux/ramips/image/mt7621.mk b/target/linux/ramips/image/mt7621.mk
index 3b68a76b3e..c94f75aa66 100644
--- a/target/linux/ramips/image/mt7621.mk
+++ b/target/linux/ramips/image/mt7621.mk
@@ -1689,6 +1689,18 @@ define Device/zbtlink_zbt-we3526
endef
TARGET_DEVICES += zbtlink_zbt-we3526
+define Device/zbtlink_zbt-wg1602-16m
+ $(Device/dsa-migration)
+ $(Device/uimage-lzma-loader)
+ IMAGE_SIZE := 16064k
+ DEVICE_VENDOR := Zbtlink
+ DEVICE_MODEL := ZBT-WG1602
+ DEVICE_VARIANT := 16M
+ DEVICE_PACKAGES := kmod-sdhci-mt7620 kmod-mt7603 kmod-mt76x2 kmod-usb3 \
+ kmod-usb-ledtrig-usbport
+endef
+TARGET_DEVICES += zbtlink_zbt-wg1602-16m
+
define Device/zbtlink_zbt-wg2626
$(Device/dsa-migration)
$(Device/uimage-lzma-loader)
--
2.32.0
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