linux-kernel - [PATCH RFC v2 3/4] riscv: dts: thead: Add TH1520 AP

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Message-Id: <20240426-th1520-clk-v2-v2-3-96b829e6fcee@tenstorrent.com>
Date: Fri, 26 Apr 2024 17:10:36 -0700
From: Drew Fustini <dfustini@...storrent.com>
To: Jisheng Zhang <jszhang@...nel.org>, Guo Ren <guoren@...nel.org>, 
 Fu Wei <wefu@...hat.com>, Yangtao Li <frank.li@...o.com>, 
 Thomas Bonnefille <thomas.bonnefille@...tlin.com>, 
 Emil Renner Berthing <emil.renner.berthing@...onical.com>, 
 Michael Turquette <mturquette@...libre.com>, 
 Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Drew Fustini <dfustini@...storrent.com>, 
 Paul Walmsley <paul.walmsley@...ive.com>, 
 Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>
Cc: linux-riscv@...ts.infradead.org, linux-clk@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH RFC v2 3/4] riscv: dts: thead: Add TH1520 AP_SUBSYS clock
 controller

Add node for the AP_SUBSYS clock controller on the T-Head TH1520 SoC.

Link: https://openbeagle.org/beaglev-ahead/beaglev-ahead/-/blob/main/docs/TH1520%20System%20User%20Manual.pdf
Signed-off-by: Drew Fustini <dfustini@...storrent.com>
---
 arch/riscv/boot/dts/thead/th1520.dtsi | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/riscv/boot/dts/thead/th1520.dtsi b/arch/riscv/boot/dts/thead/th1520.dtsi
index 8b915e206f3a..6285cdf91bd6 100644
--- a/arch/riscv/boot/dts/thead/th1520.dtsi
+++ b/arch/riscv/boot/dts/thead/th1520.dtsi
@@ -5,6 +5,7 @@
  */
 
 #include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/clock/thead,th1520-clk-ap.h>
 
 / {
 	compatible = "thead,th1520";
@@ -161,6 +162,14 @@ soc {
 		dma-noncoherent;
 		ranges;
 
+		clk: clock-controller@...f010000 {
+			compatible = "thead,th1520-clk-ap";
+			reg = <0xff 0xef010000 0x0 0x1000>;
+			clocks = <&osc>;
+			clock-names = "osc";
+			#clock-cells = <1>;
+		};
+
 		plic: interrupt-controller@...8000000 {
 			compatible = "thead,th1520-plic", "thead,c900-plic";
 			reg = <0xff 0xd8000000 0x0 0x01000000>;

-- 
2.34.1