arm64: dts: allwinner: a523: Add MCU PRCM CCU node

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.

Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20250911174710.3149589-7-wens@kernel.org
Signed-off-by: Chen-Yu Tsai <wens@csie.org>

diff --git a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
index 6b6f2296bdff64e641b5e1e1a6c65408db74b9a5..a5100e5d19aaa4c501ed897f8352993ec8a246be 100644 (file)
--- 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>
@@ -690,5 +692,30 @@
                        clock-names = "bus", "hosc", "ahb";
                        #clock-cells = <1>;
                };
+
+               mcu_ccu: clock-controller@7102000 {
+                       compatible = "allwinner,sun55i-a523-mcu-ccu";
+                       reg = <0x7102000 0x200>;
+                       clocks = <&osc24M>,
+                                <&rtc CLK_OSC32K>,
+                                <&rtc CLK_IOSC>,
+                                <&ccu CLK_PLL_AUDIO0_4X>,
+                                <&ccu CLK_PLL_PERIPH0_300M>,
+                                <&ccu CLK_DSP>,
+                                <&ccu CLK_MBUS>,
+                                <&r_ccu CLK_R_AHB>,
+                                <&r_ccu CLK_R_APB0>;
+                       clock-names = "hosc",
+                                     "losc",
+                                     "iosc",
+                                     "pll-audio0-4x",
+                                     "pll-periph0-300m",
+                                     "dsp",
+                                     "mbus",
+                                     "r-ahb",
+                                     "r-apb0";
+                       #clock-cells = <1>;
+                       #reset-cells = <1>;
+               };
        };
 };