1 # SPDX-License-Identifier: (GPL-2.0-only OR BS 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/dma/arm-pl0 4 $id: http://devicetree.org/schemas/dma/arm-pl08x.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: ARM PrimeCells PL080 and PL081 and deri 7 title: ARM PrimeCells PL080 and PL081 and derivatives DMA controller
8 8
9 maintainers: 9 maintainers:
10 - Vinod Koul <vkoul@kernel.org> 10 - Vinod Koul <vkoul@kernel.org>
11 11
12 allOf: 12 allOf:
13 - $ref: /schemas/arm/primecell.yaml# 13 - $ref: /schemas/arm/primecell.yaml#
14 - $ref: dma-controller.yaml# 14 - $ref: dma-controller.yaml#
15 15
16 # We need a select here so we don't match all 16 # We need a select here so we don't match all nodes with 'arm,primecell'
17 select: 17 select:
18 properties: 18 properties:
19 compatible: 19 compatible:
20 contains: 20 contains:
21 enum: 21 enum:
22 - arm,pl080 22 - arm,pl080
23 - arm,pl081 23 - arm,pl081
24 required: 24 required:
25 - compatible 25 - compatible
26 26
27 properties: 27 properties:
28 compatible: 28 compatible:
29 oneOf: 29 oneOf:
30 - items: 30 - items:
31 - enum: 31 - enum:
32 - arm,pl080 32 - arm,pl080
33 - arm,pl081 33 - arm,pl081
34 - const: arm,primecell 34 - const: arm,primecell
35 - items: 35 - items:
36 - const: faraday,ftdma020 36 - const: faraday,ftdma020
37 - const: arm,pl080 37 - const: arm,pl080
38 - const: arm,primecell 38 - const: arm,primecell
39 39
40 reg: 40 reg:
41 maxItems: 1 41 maxItems: 1
42 description: Address range of the PL08x re 42 description: Address range of the PL08x registers
43 43
44 interrupts: 44 interrupts:
45 minItems: 1 45 minItems: 1
46 description: The PL08x interrupt number 46 description: The PL08x interrupt number
47 47
48 clocks: 48 clocks:
49 minItems: 1 49 minItems: 1
50 description: The clock running the IP core 50 description: The clock running the IP core clock
51 51
52 clock-names: 52 clock-names:
53 maxItems: 1 53 maxItems: 1
54 54
55 lli-bus-interface-ahb1: 55 lli-bus-interface-ahb1:
56 type: boolean 56 type: boolean
57 description: if AHB master 1 is eligible f 57 description: if AHB master 1 is eligible for fetching LLIs
58 58
59 lli-bus-interface-ahb2: 59 lli-bus-interface-ahb2:
60 type: boolean 60 type: boolean
61 description: if AHB master 2 is eligible f 61 description: if AHB master 2 is eligible for fetching LLIs
62 62
63 mem-bus-interface-ahb1: 63 mem-bus-interface-ahb1:
64 type: boolean 64 type: boolean
65 description: if AHB master 1 is eligible f 65 description: if AHB master 1 is eligible for fetching memory contents
66 66
67 mem-bus-interface-ahb2: 67 mem-bus-interface-ahb2:
68 type: boolean 68 type: boolean
69 description: if AHB master 2 is eligible f 69 description: if AHB master 2 is eligible for fetching memory contents
70 70
71 memcpy-burst-size: 71 memcpy-burst-size:
72 $ref: /schemas/types.yaml#/definitions/uin 72 $ref: /schemas/types.yaml#/definitions/uint32
73 enum: 73 enum:
74 - 1 74 - 1
75 - 4 75 - 4
76 - 8 76 - 8
77 - 16 77 - 16
78 - 32 78 - 32
79 - 64 79 - 64
80 - 128 80 - 128
81 - 256 81 - 256
82 description: the size of the bursts for me 82 description: the size of the bursts for memcpy
83 83
84 memcpy-bus-width: 84 memcpy-bus-width:
85 $ref: /schemas/types.yaml#/definitions/uin 85 $ref: /schemas/types.yaml#/definitions/uint32
86 enum: 86 enum:
87 - 8 87 - 8
88 - 16 88 - 16
89 - 32 89 - 32
90 - 64 90 - 64
91 description: bus width used for memcpy in 91 description: bus width used for memcpy in bits. FTDMAC020 also accept 64 bits
92 92
93 resets: 93 resets:
94 maxItems: 1 94 maxItems: 1
95 95
96 required: 96 required:
97 - reg 97 - reg
98 - interrupts 98 - interrupts
99 - clocks 99 - clocks
100 - clock-names 100 - clock-names
101 - "#dma-cells" 101 - "#dma-cells"
102 102
103 unevaluatedProperties: false 103 unevaluatedProperties: false
104 104
105 examples: 105 examples:
106 - | 106 - |
107 dmac0: dma-controller@10130000 { 107 dmac0: dma-controller@10130000 {
108 compatible = "arm,pl080", "arm,primecell 108 compatible = "arm,pl080", "arm,primecell";
109 reg = <0x10130000 0x1000>; 109 reg = <0x10130000 0x1000>;
110 interrupt-parent = <&vica>; 110 interrupt-parent = <&vica>;
111 interrupts = <15>; 111 interrupts = <15>;
112 clocks = <&hclkdma0>; 112 clocks = <&hclkdma0>;
113 clock-names = "apb_pclk"; 113 clock-names = "apb_pclk";
114 lli-bus-interface-ahb1; 114 lli-bus-interface-ahb1;
115 lli-bus-interface-ahb2; 115 lli-bus-interface-ahb2;
116 mem-bus-interface-ahb2; 116 mem-bus-interface-ahb2;
117 memcpy-burst-size = <256>; 117 memcpy-burst-size = <256>;
118 memcpy-bus-width = <32>; 118 memcpy-bus-width = <32>;
119 #dma-cells = <2>; 119 #dma-cells = <2>;
120 }; 120 };
121 - | 121 - |
122 #include <dt-bindings/interrupt-controller 122 #include <dt-bindings/interrupt-controller/irq.h>
123 #include <dt-bindings/reset/cortina,gemini 123 #include <dt-bindings/reset/cortina,gemini-reset.h>
124 #include <dt-bindings/clock/cortina,gemini 124 #include <dt-bindings/clock/cortina,gemini-clock.h>
125 dma-controller@67000000 { 125 dma-controller@67000000 {
126 compatible = "faraday,ftdma020", "arm,pl 126 compatible = "faraday,ftdma020", "arm,pl080", "arm,primecell";
127 /* Faraday Technology FTDMAC020 variant 127 /* Faraday Technology FTDMAC020 variant */
128 arm,primecell-periphid = <0x0003b080>; 128 arm,primecell-periphid = <0x0003b080>;
129 reg = <0x67000000 0x1000>; 129 reg = <0x67000000 0x1000>;
130 interrupts = <9 IRQ_TYPE_EDGE_RISING>; 130 interrupts = <9 IRQ_TYPE_EDGE_RISING>;
131 resets = <&syscon GEMINI_RESET_DMAC>; 131 resets = <&syscon GEMINI_RESET_DMAC>;
132 clocks = <&syscon GEMINI_CLK_AHB>; 132 clocks = <&syscon GEMINI_CLK_AHB>;
133 clock-names = "apb_pclk"; 133 clock-names = "apb_pclk";
134 /* Bus interface AHB1 (AHB0) is totally 134 /* Bus interface AHB1 (AHB0) is totally tilted */
135 lli-bus-interface-ahb2; 135 lli-bus-interface-ahb2;
136 mem-bus-interface-ahb2; 136 mem-bus-interface-ahb2;
137 memcpy-burst-size = <256>; 137 memcpy-burst-size = <256>;
138 memcpy-bus-width = <32>; 138 memcpy-bus-width = <32>;
139 #dma-cells = <2>; 139 #dma-cells = <2>;
140 }; 140 };
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.