1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
|
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: "http://devicetree.org/schemas/gpu/host1x/nvidia,tegra234-nvdec.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: NVIDIA Tegra234 NVDEC
description: |
NVDEC is the hardware video decoder present on NVIDIA Tegra210
and newer chips. It is located on the Host1x bus and typically
programmed through Host1x channels.
maintainers:
- Thierry Reding <treding@gmail.com>
- Mikko Perttunen <mperttunen@nvidia.com>
properties:
$nodename:
pattern: "^nvdec@[0-9a-f]*$"
compatible:
enum:
- nvidia,tegra234-nvdec
reg:
maxItems: 1
clocks:
maxItems: 3
clock-names:
items:
- const: nvdec
- const: fuse
- const: tsec_pka
resets:
maxItems: 1
reset-names:
items:
- const: nvdec
power-domains:
maxItems: 1
iommus:
maxItems: 1
dma-coherent: true
interconnects:
items:
- description: DMA read memory client
- description: DMA write memory client
interconnect-names:
items:
- const: dma-mem
- const: write
nvidia,memory-controller:
$ref: /schemas/types.yaml#/definitions/phandle
description:
phandle to the memory controller for determining information for the NVDEC
firmware secure carveout. This carveout is configured by the bootloader and
not accessible to CPU.
nvidia,bl-manifest-offset:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Offset to bootloader manifest from beginning of firmware that was configured by
the bootloader.
nvidia,bl-code-offset:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Offset to bootloader code section from beginning of firmware that was configured by
the bootloader.
nvidia,bl-data-offset:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Offset to bootloader data section from beginning of firmware that was configured by
the bootloader.
nvidia,os-manifest-offset:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Offset to operating system manifest from beginning of firmware that was configured by
the bootloader.
nvidia,os-code-offset:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Offset to operating system code section from beginning of firmware that was configured by
the bootloader.
nvidia,os-data-offset:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Offset to operating system data section from beginning of firmware that was configured
by the bootloader.
required:
- compatible
- reg
- clocks
- clock-names
- resets
- reset-names
- power-domains
- nvidia,memory-controller
- nvidia,bl-manifest-offset
- nvidia,bl-code-offset
- nvidia,bl-data-offset
- nvidia,os-manifest-offset
- nvidia,os-code-offset
- nvidia,os-data-offset
additionalProperties: false
examples:
- |
#include <dt-bindings/clock/tegra234-clock.h>
#include <dt-bindings/memory/tegra234-mc.h>
#include <dt-bindings/power/tegra234-powergate.h>
#include <dt-bindings/reset/tegra234-reset.h>
nvdec@15480000 {
compatible = "nvidia,tegra234-nvdec";
reg = <0x15480000 0x00040000>;
clocks = <&bpmp TEGRA234_CLK_NVDEC>,
<&bpmp TEGRA234_CLK_FUSE>,
<&bpmp TEGRA234_CLK_TSEC_PKA>;
clock-names = "nvdec", "fuse", "tsec_pka";
resets = <&bpmp TEGRA234_RESET_NVDEC>;
reset-names = "nvdec";
power-domains = <&bpmp TEGRA234_POWER_DOMAIN_NVDEC>;
interconnects = <&mc TEGRA234_MEMORY_CLIENT_NVDECSRD &emc>,
<&mc TEGRA234_MEMORY_CLIENT_NVDECSWR &emc>;
interconnect-names = "dma-mem", "write";
iommus = <&smmu_niso1 TEGRA234_SID_NVDEC>;
dma-coherent;
nvidia,memory-controller = <&mc>;
/* Placeholder values, to be replaced with values from overlay */
nvidia,bl-manifest-offset = <0>;
nvidia,bl-data-offset = <0>;
nvidia,bl-code-offset = <0>;
nvidia,os-manifest-offset = <0>;
nvidia,os-data-offset = <0>;
nvidia,os-code-offset = <0>;
};
|
