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realtek: rtl930x: add STC8 MCU support for Hasivo F1100W/WP-4SX-4XGT

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This MCU is present on most Hasivo devices and controls basic things
such as watchdog, sensor, and RTC if available.
On devices with PoE PSE support, it also controls the PSE chip and LEDs.

One funny detail is that while the watchdog is present on most Hasivo devices
and (unless armed) resets the whole device, here it only resets the PoE LEDs.
The PoE LEDs reset and blink twice every 75s, even if PoE is unmanaged or off.

Signed-off-by: Lars Gierth <larsg@systemli.org>
Link: https://github.com/openwrt/openwrt/pull/24643
Signed-off-by: Jonas Jelonek <jelonek.jonas@gmail.com>
This commit is contained in:
Lars Gierth authored and Jonas Jelonek committed 2026-08-11 22:20:13 +02:00
1 parent 8992053dac
commit 95b3e13fcb
2 files changed
+50 -10
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target/linux/realtek/dts/rtl9303_hasivo_f1100w-4sx-4xgt-common.dtsi
+44 -8
View File
@@ -13,6 +13,13 @@
led-failsafe = &led_sys;
led-running = &led_sys;
led-upgrade = &led_sys;
/* Pin the STC8 to i2c0 so the PoE pse-0-* LED triggers bind. */
i2c0 = &i2c_stc8;
i2c1 = &i2c_sfp0;
i2c2 = &i2c_sfp1;
i2c3 = &i2c_sfp2;
i2c4 = &i2c_sfp3;
};
chosen {
@@ -51,30 +58,59 @@
>;
};
/* I2C bus to the STC8 MCU, which controls watchdog, sensor, and PoE. */
i2c_stc8: i2c-gpio {
compatible = "i2c-gpio";
#address-cells = <1>;
#size-cells = <0>;
scl-gpios = <&gpio0 22 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
sda-gpios = <&gpio0 23 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
clock-frequency = <100000>;
stc8: stc8@6e {
compatible = "hasivo,stc8-mfd", "syscon";
reg = <0x6e>;
#address-cells = <2>;
#size-cells = <0>;
hasivo,execute-bit = <0x40>;
hasivo,execute-bit-registers = <0x01 0x02>;
status = "okay";
watchdog {
compatible = "hasivo,mcu-wdt";
};
sensor {
compatible = "hasivo,mcu-sensor";
};
};
};
sfp0: sfp-p1 {
compatible = "sff,sfp";
i2c-bus = <&i2c0>;
i2c-bus = <&i2c_sfp0>;
mod-def0-gpios = <&gpio0 0 GPIO_ACTIVE_LOW>;
#thermal-sensor-cells = <0>;
};
sfp1: sfp-p2 {
compatible = "sff,sfp";
i2c-bus = <&i2c1>;
i2c-bus = <&i2c_sfp1>;
mod-def0-gpios = <&gpio0 1 GPIO_ACTIVE_LOW>;
#thermal-sensor-cells = <0>;
};
sfp2: sfp-p3 {
compatible = "sff,sfp";
i2c-bus = <&i2c2>;
i2c-bus = <&i2c_sfp2>;
mod-def0-gpios = <&gpio0 2 GPIO_ACTIVE_LOW>;
#thermal-sensor-cells = <0>;
};
sfp3: sfp-p4 {
compatible = "sff,sfp";
i2c-bus = <&i2c3>;
i2c-bus = <&i2c_sfp3>;
mod-def0-gpios = <&gpio0 3 GPIO_ACTIVE_LOW>;
#thermal-sensor-cells = <0>;
};
@@ -83,10 +119,10 @@
&i2c_mst1 {
status = "okay";
i2c0: i2c@0 { reg = <0>; };
i2c1: i2c@1 { reg = <1>; };
i2c2: i2c@2 { reg = <2>; };
i2c3: i2c@3 { reg = <3>; };
i2c_sfp0: i2c@0 { reg = <0>; };
i2c_sfp1: i2c@1 { reg = <1>; };
i2c_sfp2: i2c@2 { reg = <2>; };
i2c_sfp3: i2c@3 { reg = <3>; };
};
&spi0 {
target/linux/realtek/image/rtl930x.mk
+6 -2
View File
@@ -29,7 +29,9 @@ define Device/hasivo_f1100w-4sx-4xgt-common
DEVICE_MODEL := F1100W-4SX-4XGT
DEVICE_ALT0_VENDOR := Hasivo
DEVICE_ALT0_MODEL := F1100W-4SX-4XGT-SE
DEVICE_PACKAGES := kmod-phy-realtek rtl826x-firmware
DEVICE_PACKAGES := \
kmod-hasivo-mcu-sensor kmod-hasivo-mcu-wdt kmod-mfd-hasivo-stc8 \
kmod-phy-realtek rtl826x-firmware
IMAGE_SIZE := 29696k
$(Device/kernel-lzma)
endef
@@ -52,7 +54,9 @@ define Device/hasivo_f1100wp-4sx-4xgt-common
DEVICE_MODEL := F1100WP-4SX-4XGT
DEVICE_ALT0_VENDOR := Hasivo
DEVICE_ALT0_MODEL := F1100WP-4SX-4XGT-SE
DEVICE_PACKAGES := kmod-phy-realtek rtl826x-firmware
DEVICE_PACKAGES := \
kmod-hasivo-mcu-sensor kmod-hasivo-mcu-wdt kmod-mfd-hasivo-stc8 \
kmod-phy-realtek rtl826x-firmware
IMAGE_SIZE := 29696k
$(Device/kernel-lzma)
endef