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mips: dts: realtek: Add RTL838x SoC peripherals

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Add some of the SoC's CPU peripherals currently supported:
  - GPIO controller with support for 24 GPIO lines, although not all
    lines are brought out to pads on the SoC package. These lines can
    generate interrupts from external sources.
  - Watchdog which can be used to restart the SoC if no external restart
    logic is present.
  - SPI controller, primarily used to access NOR flash

Signed-off-by: Sander Vanheule <sander@svanheule.net>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This commit is contained in:
Sander Vanheule 2025-01-19 19:34:23 +01:00 committed by Thomas Bogendoerfer
parent 4b7785dd43
commit b3992b82ad
1 changed files with 36 additions and 0 deletions
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36
arch/mips/boot/dts/realtek/rtl838x.dtsi
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@ -46,6 +46,14 @@ soc@18000000 {
#size-cells = <1>;
ranges = <0x0 0x18000000 0x10000>;
spi0: spi@1200 {
compatible = "realtek,rtl8380-spi";
reg = <0x1200 0x100>;
#address-cells = <1>;
#size-cells = <0>;
};
uart0: serial@2000 {
compatible = "ns16550a";
reg = <0x2000 0x100>;
@ -89,5 +97,33 @@ intc: interrupt-controller@3000 {
interrupt-parent = <&cpuintc>;
interrupts = <2>, <3>, <4>, <5>, <6>;
};
watchdog: watchdog@3150 {
compatible = "realtek,rtl8380-wdt";
reg = <0x3150 0xc>;
realtek,reset-mode = "soc";
clocks = <&lx_clk>;
timeout-sec = <20>;
interrupt-parent = <&intc>;
interrupt-names = "phase1", "phase2";
interrupts = <19>, <18>;
};
gpio0: gpio@3500 {
compatible = "realtek,rtl8380-gpio", "realtek,otto-gpio";
reg = <0x3500 0x1c>;
gpio-controller;
#gpio-cells = <2>;
ngpios = <24>;
interrupt-controller;
#interrupt-cells = <2>;
interrupt-parent = <&intc>;
interrupts = <23>;
};
};
};