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

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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>
This commit is contained in:
Chen-Yu Tsai 2025-09-12 01:47:09 +08:00
parent 304c75d229
commit edd63e54e5
1 changed files with 27 additions and 0 deletions
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27
arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
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@ -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 @@ rtc: rtc@7090000 {
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>;
};
};
};