From 616c84f0473b1292a232b979c5a441de3039bb88 Mon Sep 17 00:00:00 2001 From: Alexander Sverdlin Date: Tue, 13 May 2025 22:31:25 +0200 Subject: [PATCH] riscv: dts: sophgo: cv18xx: Add RTCSYS device node Add the RTCSYS MFD node: in Cvitek CV18xx and its successors RTC Subsystem is quite advanced and provides SoC power management functions as well. The SoC family also contains DW8051 block (Intel 8051 compatible CPU core) and an associated SRAM. The corresponding control registers are mapped into RTCSYS address space as well. Link: https://github.com/sophgo/sophgo-doc/tree/main/SG200X/TRM Signed-off-by: Alexander Sverdlin Reviewed-by: Inochi Amaoto Link: https://lore.kernel.org/r/20250513203128.620731-1-alexander.sverdlin@gmail.com Signed-off-by: Inochi Amaoto Signed-off-by: Chen Wang Signed-off-by: Chen Wang --- arch/riscv/boot/dts/sophgo/cv180x.dtsi | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/riscv/boot/dts/sophgo/cv180x.dtsi b/arch/riscv/boot/dts/sophgo/cv180x.dtsi index ed06c3609fb22..280c45bd3b3df 100644 --- a/arch/riscv/boot/dts/sophgo/cv180x.dtsi +++ b/arch/riscv/boot/dts/sophgo/cv180x.dtsi @@ -307,5 +307,17 @@ snps,data-width = <2>; status = "disabled"; }; + + rtc@5025000 { + compatible = "sophgo,cv1800b-rtc", "syscon"; + reg = <0x5025000 0x2000>; + interrupts = , + , + ; + interrupt-names = "alarm", "longpress", "vbat"; + clocks = <&clk CLK_RTC_25M>, + <&clk CLK_SRC_RTC_SYS_0>; + clock-names = "rtc", "mcu"; + }; }; }; -- 2.47.2