Add the watchdog device tree node to cv1800 SoC. Signed-off-by: AnnanLiu <annan.liu.xdu@xxxxxxxxxxx> --- This patch depends on the clk driver and reset driver. Clk driver link: https://lore.kernel.org/all/IA1PR20MB49539CDAD9A268CBF6CA184BBB9FA@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/ Reset driver link: https://lore.kernel.org/all/20231113005503.2423-1-jszhang@xxxxxxxxxx/ Changes since v1: - Change the name of the watchdog from watchdog0 to watchdog. - Change the status of watchdog. v1 link: https://lore.kernel.org/all/DM6PR20MB23160B8499CC2BFDAE6FCACDAB9EA@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/ arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts | 4 ++++ arch/riscv/boot/dts/sophgo/cv1800b.dtsi | 16 ++++++++++++++++ 2 files changed, 20 insertions(+) diff --git a/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts b/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts index 3af9e34b3bc7..75469161bfff 100644 --- a/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts +++ b/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts @@ -36,3 +36,7 @@ &osc { &uart0 { status = "okay"; }; + +&watchdog { + status = "okay"; +}; diff --git a/arch/riscv/boot/dts/sophgo/cv1800b.dtsi b/arch/riscv/boot/dts/sophgo/cv1800b.dtsi index aec6401a467b..03ca32cd37b6 100644 --- a/arch/riscv/boot/dts/sophgo/cv1800b.dtsi +++ b/arch/riscv/boot/dts/sophgo/cv1800b.dtsi @@ -1,6 +1,7 @@ // SPDX-License-Identifier: (GPL-2.0 OR MIT) /* * Copyright (C) 2023 Jisheng Zhang <jszhang@xxxxxxxxxx> + * Copyright (C) 2024 Annan Liu <annan.liu.xdu@xxxxxxxxxxx> */ #include <dt-bindings/interrupt-controller/irq.h> @@ -103,6 +104,21 @@ uart4: serial@41c0000 { status = "disabled"; }; + watchdog: watchdog@3010000{ + compatible = "snps,dw-wdt"; + reg = <0x3010000 0x100>; + interrupts = <58 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&pclk>; + resets = <&rst RST_WDT>; + status = "disabled"; + }; + + pclk: pclk { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <25000000>; + }; + plic: interrupt-controller@70000000 { compatible = "sophgo,cv1800b-plic", "thead,c900-plic"; reg = <0x70000000 0x4000000>; -- 2.34.1
