From: Chen-Yu Tsai <wens@kernel.org>
To: Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Stephen Boyd <sboyd@kernel.org>, Chen-Yu Tsai <wens@csie.org>,
Jernej Skrabec <jernej@kernel.org>,
Samuel Holland <samuel@sholland.org>
Cc: Andre Przywara <andre.przywara@arm.com>,
linux-sunxi@lists.linux.dev, linux-clk@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 7/8] arm64: dts: allwinner: a523: Add MCU PRCM CCU node
Date: Sun, 31 Aug 2025 01:09:00 +0800 [thread overview]
Message-ID: <20250830170901.1996227-8-wens@kernel.org> (raw)
In-Reply-To: <20250830170901.1996227-1-wens@kernel.org>
From: Chen-Yu Tsai <wens@csie.org>
Add a device node for the third supported clock controller found in the
A523 / T527 SoCs. This controller has clocks and resets for the RISC-V
MCU, and others peripherals possibly meant to operate in low power mode
driven by the MCU, such as audio interfaces, an audio DSP, and the NPU.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
.../arm64/boot/dts/allwinner/sun55i-a523.dtsi | 25 +++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
index 79bd9ce08c7c..b6e82d53af54 100644
--- a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
@@ -4,8 +4,10 @@
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/clock/sun6i-rtc.h>
#include <dt-bindings/clock/sun55i-a523-ccu.h>
+#include <dt-bindings/clock/sun55i-a523-mcu-ccu.h>
#include <dt-bindings/clock/sun55i-a523-r-ccu.h>
#include <dt-bindings/reset/sun55i-a523-ccu.h>
+#include <dt-bindings/reset/sun55i-a523-mcu-ccu.h>
#include <dt-bindings/reset/sun55i-a523-r-ccu.h>
#include <dt-bindings/power/allwinner,sun55i-a523-ppu.h>
#include <dt-bindings/power/allwinner,sun55i-a523-pck-600.h>
@@ -825,6 +827,29 @@ rtc: rtc@7090000 {
clock-names = "bus", "hosc", "ahb";
#clock-cells = <1>;
};
+
+ mcu_ccu: clock-controller@7102000 {
+ compatible = "allwinner,sun55i-a523-mcu-ccu";
+ reg = <0x7102000 0x164>;
+ clocks = <&osc24M>,
+ <&rtc CLK_OSC32K>,
+ <&rtc CLK_IOSC>,
+ <&ccu CLK_PLL_AUDIO0_4X>,
+ <&ccu CLK_PLL_PERIPH0_300M>,
+ <&ccu CLK_DSP>,
+ <&r_ccu CLK_R_AHB>,
+ <&ccu CLK_MBUS>;
+ clock-names = "hosc",
+ "losc",
+ "iosc",
+ "pll-audio0-4x",
+ "pll-periph0-300m",
+ "dsp",
+ "r-ahb",
+ "mbus";
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
};
thermal-zones {
--
2.39.5
next prev parent reply other threads:[~2025-08-30 17:09 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-30 17:08 [PATCH 0/8] arm64: allwinner: a523: Enable MCU PRCM and NPU Chen-Yu Tsai
2025-08-30 17:08 ` [PATCH 1/8] dt-bindings: clock: sun55i-a523-ccu: Add missing NPU module clock Chen-Yu Tsai
2025-09-01 21:29 ` Rob Herring (Arm)
2025-08-30 17:08 ` [PATCH 2/8] dt-bindings: clock: sun55i-a523-ccu: Add A523 MCU CCU clock controller Chen-Yu Tsai
2025-09-01 21:31 ` Rob Herring (Arm)
2025-08-30 17:08 ` [PATCH 3/8] clk: sunxi-ng: mp: Fix dual-divider clock rate readback Chen-Yu Tsai
2025-08-30 17:08 ` [PATCH 4/8] clk: sunxi-ng: sun55i-a523-ccu: Add missing NPU module clock Chen-Yu Tsai
2025-08-30 17:08 ` [PATCH 5/8] clk: sunxi-ng: div: support power-of-two dividers Chen-Yu Tsai
2025-08-30 17:08 ` [PATCH 6/8] clk: sunxi-ng: add support for the A523/T527 MCU CCU Chen-Yu Tsai
2025-08-30 17:09 ` Chen-Yu Tsai [this message]
2025-08-30 17:09 ` [PATCH 8/8] arm64: dts: allwinner: a523: Add NPU device node Chen-Yu Tsai
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