[PATCH 7/8] arm64: dts: allwinner: a523: Add MCU PRCM CCU node
Chen-Yu Tsai
wens at kernel.org
Sat Aug 30 10:09:00 PDT 2025
From: Chen-Yu Tsai <wens at 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 at 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 at 7090000 {
clock-names = "bus", "hosc", "ahb";
#clock-cells = <1>;
};
+
+ mcu_ccu: clock-controller at 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
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