tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
dt-bindings: clock: sun55i-a523-ccu: Add A523 MCU CCU clock controller
There are four clock controllers in the A523 SoC. The existing binding
already covers two of them that are critical for basic operation. The
remaining ones are the MCU clock controller and CPU PLL clock
controller.
Add a description for the MCU CCU. This unit controls and provides
clocks to the MCU (RISC-V) subsystem and peripherals meant to operate
under low power conditions.
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20250911174710.3149589-3-wens@kernel.org
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
+119
-2
+35
-2
Documentation/devicetree/bindings/clock/allwinner,sun55i-a523-ccu.yaml
+35
-2
Documentation/devicetree/bindings/clock/allwinner,sun55i-a523-ccu.yaml
···
19
19
compatible:
20
20
enum:
21
21
- allwinner,sun55i-a523-ccu
22
+
- allwinner,sun55i-a523-mcu-ccu
22
23
- allwinner,sun55i-a523-r-ccu
23
24
24
25
reg:
···
27
26
28
27
clocks:
29
28
minItems: 4
30
-
maxItems: 5
29
+
maxItems: 9
31
30
32
31
clock-names:
33
32
minItems: 4
34
-
maxItems: 5
33
+
maxItems: 9
35
34
36
35
required:
37
36
- "#clock-cells"
···
63
62
- const: losc
64
63
- const: iosc
65
64
- const: losc-fanout
65
+
66
+
- if:
67
+
properties:
68
+
compatible:
69
+
enum:
70
+
- allwinner,sun55i-a523-mcu-ccu
71
+
72
+
then:
73
+
properties:
74
+
clocks:
75
+
items:
76
+
- description: High Frequency Oscillator (usually at 24MHz)
77
+
- description: Low Frequency Oscillator (usually at 32kHz)
78
+
- description: Internal Oscillator
79
+
- description: Audio PLL (4x)
80
+
- description: Peripherals PLL 0 (300 MHz output)
81
+
- description: DSP module clock
82
+
- description: MBUS clock
83
+
- description: PRCM AHB clock
84
+
- description: PRCM APB0 clock
85
+
86
+
clock-names:
87
+
items:
88
+
- const: hosc
89
+
- const: losc
90
+
- const: iosc
91
+
- const: pll-audio0-4x
92
+
- const: pll-periph0-300m
93
+
- const: dsp
94
+
- const: mbus
95
+
- const: r-ahb
96
+
- const: r-apb0
66
97
67
98
- if:
68
99
properties:
+54
include/dt-bindings/clock/sun55i-a523-mcu-ccu.h
+54
include/dt-bindings/clock/sun55i-a523-mcu-ccu.h
···
1
+
/* SPDX-License-Identifier: (GPL-2.0-only OR MIT) */
2
+
/*
3
+
* Copyright (C) 2025 Chen-Yu Tsai <wens@csie.org>
4
+
*/
5
+
6
+
#ifndef _DT_BINDINGS_CLK_SUN55I_A523_MCU_CCU_H_
7
+
#define _DT_BINDINGS_CLK_SUN55I_A523_MCU_CCU_H_
8
+
9
+
#define CLK_MCU_PLL_AUDIO1 0
10
+
#define CLK_MCU_PLL_AUDIO1_DIV2 1
11
+
#define CLK_MCU_PLL_AUDIO1_DIV5 2
12
+
#define CLK_MCU_AUDIO_OUT 3
13
+
#define CLK_MCU_DSP 4
14
+
#define CLK_MCU_I2S0 5
15
+
#define CLK_MCU_I2S1 6
16
+
#define CLK_MCU_I2S2 7
17
+
#define CLK_MCU_I2S3 8
18
+
#define CLK_MCU_I2S3_ASRC 9
19
+
#define CLK_BUS_MCU_I2S0 10
20
+
#define CLK_BUS_MCU_I2S1 11
21
+
#define CLK_BUS_MCU_I2S2 12
22
+
#define CLK_BUS_MCU_I2S3 13
23
+
#define CLK_MCU_SPDIF_TX 14
24
+
#define CLK_MCU_SPDIF_RX 15
25
+
#define CLK_BUS_MCU_SPDIF 16
26
+
#define CLK_MCU_DMIC 17
27
+
#define CLK_BUS_MCU_DMIC 18
28
+
#define CLK_MCU_AUDIO_CODEC_DAC 19
29
+
#define CLK_MCU_AUDIO_CODEC_ADC 20
30
+
#define CLK_BUS_MCU_AUDIO_CODEC 21
31
+
#define CLK_BUS_MCU_DSP_MSGBOX 22
32
+
#define CLK_BUS_MCU_DSP_CFG 23
33
+
#define CLK_BUS_MCU_NPU_HCLK 24
34
+
#define CLK_BUS_MCU_NPU_ACLK 25
35
+
#define CLK_MCU_TIMER0 26
36
+
#define CLK_MCU_TIMER1 27
37
+
#define CLK_MCU_TIMER2 28
38
+
#define CLK_MCU_TIMER3 29
39
+
#define CLK_MCU_TIMER4 30
40
+
#define CLK_MCU_TIMER5 31
41
+
#define CLK_BUS_MCU_TIMER 32
42
+
#define CLK_BUS_MCU_DMA 33
43
+
#define CLK_MCU_TZMA0 34
44
+
#define CLK_MCU_TZMA1 35
45
+
#define CLK_BUS_MCU_PUBSRAM 36
46
+
#define CLK_MCU_MBUS_DMA 37
47
+
#define CLK_MCU_MBUS 38
48
+
#define CLK_MCU_RISCV 39
49
+
#define CLK_BUS_MCU_RISCV_CFG 40
50
+
#define CLK_BUS_MCU_RISCV_MSGBOX 41
51
+
#define CLK_MCU_PWM0 42
52
+
#define CLK_BUS_MCU_PWM0 43
53
+
54
+
#endif /* _DT_BINDINGS_CLK_SUN55I_A523_MCU_CCU_H_ */
+30
include/dt-bindings/reset/sun55i-a523-mcu-ccu.h
+30
include/dt-bindings/reset/sun55i-a523-mcu-ccu.h
···
1
+
/* SPDX-License-Identifier: (GPL-2.0-only OR MIT) */
2
+
/*
3
+
* Copyright (C) 2025 Chen-Yu Tsai <wens@csie.org>
4
+
*/
5
+
6
+
#ifndef _DT_BINDINGS_RST_SUN55I_A523_MCU_CCU_H_
7
+
#define _DT_BINDINGS_RST_SUN55I_A523_MCU_CCU_H_
8
+
9
+
#define RST_BUS_MCU_I2S0 0
10
+
#define RST_BUS_MCU_I2S1 1
11
+
#define RST_BUS_MCU_I2S2 2
12
+
#define RST_BUS_MCU_I2S3 3
13
+
#define RST_BUS_MCU_SPDIF 4
14
+
#define RST_BUS_MCU_DMIC 5
15
+
#define RST_BUS_MCU_AUDIO_CODEC 6
16
+
#define RST_BUS_MCU_DSP_MSGBOX 7
17
+
#define RST_BUS_MCU_DSP_CFG 8
18
+
#define RST_BUS_MCU_NPU 9
19
+
#define RST_BUS_MCU_TIMER 10
20
+
#define RST_BUS_MCU_DSP_DEBUG 11
21
+
#define RST_BUS_MCU_DSP 12
22
+
#define RST_BUS_MCU_DMA 13
23
+
#define RST_BUS_MCU_PUBSRAM 14
24
+
#define RST_BUS_MCU_RISCV_CFG 15
25
+
#define RST_BUS_MCU_RISCV_DEBUG 16
26
+
#define RST_BUS_MCU_RISCV_CORE 17
27
+
#define RST_BUS_MCU_RISCV_MSGBOX 18
28
+
#define RST_BUS_MCU_PWM0 19
29
+
30
+
#endif /* _DT_BINDINGS_RST_SUN55I_A523_MCU_CCU_H_ */