linux-kernel - [PATCH RESEND 7/7] riscv: dts: spacemit: add reset support for the K1 SoC

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Message-ID: <20250321151831.623575-8-elder@riscstar.com>
Date: Fri, 21 Mar 2025 10:18:30 -0500
From: Alex Elder <elder@...cstar.com>
To: p.zabel@...gutronix.de,
	mturquette@...libre.com,
	sboyd@...nel.org,
	dlan@...too.org
Cc: robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	heylenay@....org,
	guodong@...cstar.com,
	paul.walmsley@...ive.com,
	palmer@...belt.com,
	aou@...s.berkeley.edu,
	spacemit@...ts.linux.dev,
	devicetree@...r.kernel.org,
	linux-clk@...r.kernel.org,
	linux-riscv@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH RESEND 7/7] riscv: dts: spacemit: add reset support for the K1 SoC

Define syscon nodes for the RCPU, RCPU2, and APBC2 SpacemiT CCUS, which
currently support resets but not clocks in the SpacemiT K1.

Signed-off-by: Alex Elder <elder@...cstar.com>
---
 arch/riscv/boot/dts/spacemit/k1.dtsi | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/riscv/boot/dts/spacemit/k1.dtsi b/arch/riscv/boot/dts/spacemit/k1.dtsi
index 09a9100986b19..f86d1b58c6d35 100644
--- a/arch/riscv/boot/dts/spacemit/k1.dtsi
+++ b/arch/riscv/boot/dts/spacemit/k1.dtsi
@@ -350,6 +350,18 @@ soc {
 		dma-noncoherent;
 		ranges;
 
+		syscon_rcpu: system-controller@...80000 {
+			compatible = "spacemit,k1-syscon-rcpu";
+			reg = <0x0 0xc0880000 0x0 0x2048>;
+			#reset-cells = <1>;
+		};
+
+		syscon_rcpu2: system-controller@...88000 {
+			compatible = "spacemit,k1-syscon-rcpu2";
+			reg = <0x0 0xc0888000 0x0 0x28>;
+			#reset-cells = <1>;
+		};
+
 		syscon_apbc: system-control@...15000 {
 			compatible = "spacemit,k1-syscon-apbc";
 			reg = <0x0 0xd4015000 0x0 0x1000>;
@@ -518,6 +530,12 @@ clint: timer@...00000 {
 					      <&cpu7_intc 3>, <&cpu7_intc 7>;
 		};
 
+		syscon_apbc2: system-controller@...10000 {
+			compatible = "spacemit,k1-syscon-apbc2";
+			reg = <0x0 0xf0610000 0x0 0x20>;
+			#reset-cells = <1>;
+		};
+
 		sec_uart1: serial@...12000 {
 			compatible = "spacemit,k1-uart", "intel,xscale-uart";
 			reg = <0x0 0xf0612000 0x0 0x100>;
-- 
2.43.0