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
|
NVIDIA Tegra Graphics Processing Units
Required properties:
- compatible: "nvidia,<gpu>"
Currently recognized values:
- nvidia,gk20a
- nvidia,gm20b
- nvidia,gp10b
- reg: Physical base address and length of the controller's registers.
Must contain two entries:
- first entry for bar0
- second entry for bar1
- interrupts: Must contain an entry for each entry in interrupt-names.
See ../interrupt-controller/interrupts.txt for details.
- interrupt-names: Must include the following entries:
- stall
- nonstall
- vdd-supply: regulator for supply voltage. Only required for GPUs not using
power domains.
- clocks: Must contain an entry for each entry in clock-names.
See ../clocks/clock-bindings.txt for details.
- clock-names: Must include the following entries:
- gpu
- pwr
If the compatible string is "nvidia,gm20b", then the following clock
is also required:
- ref
- resets: Must contain an entry for each entry in reset-names.
See ../reset/reset.txt for details.
- reset-names: Must include the following entries:
- gpu
- power-domains: GPUs that make use of power domains can define this property
instead of vdd-supply. Currently "nvidia,gp10b" makes use of this.
Optional properties:
- iommus: A reference to the IOMMU. See ../iommu/iommu.txt for details.
Example for GK20A:
gpu@57000000 {
compatible = "nvidia,gk20a";
reg = <0x0 0x57000000 0x0 0x01000000>,
<0x0 0x58000000 0x0 0x01000000>;
interrupts = <GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 158 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "stall", "nonstall";
vdd-supply = <&vdd_gpu>;
clocks = <&tegra_car TEGRA124_CLK_GPU>,
<&tegra_car TEGRA124_CLK_PLL_P_OUT5>;
clock-names = "gpu", "pwr";
resets = <&tegra_car 184>;
reset-names = "gpu";
iommus = <&mc TEGRA_SWGROUP_GPU>;
};
Example for GM20B:
gpu@57000000 {
compatible = "nvidia,gm20b";
reg = <0x0 0x57000000 0x0 0x01000000>,
<0x0 0x58000000 0x0 0x01000000>;
interrupts = <GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 158 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "stall", "nonstall";
clocks = <&tegra_car TEGRA210_CLK_GPU>,
<&tegra_car TEGRA210_CLK_PLL_P_OUT5>,
<&tegra_car TEGRA210_CLK_PLL_G_REF>;
clock-names = "gpu", "pwr", "ref";
resets = <&tegra_car 184>;
reset-names = "gpu";
iommus = <&mc TEGRA_SWGROUP_GPU>;
};
Example for GP10B:
gpu@17000000 {
compatible = "nvidia,gp10b";
reg = <0x0 0x17000000 0x0 0x1000000>,
<0x0 0x18000000 0x0 0x1000000>;
interrupts = <GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH
GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "stall", "nonstall";
clocks = <&bpmp TEGRA186_CLK_GPCCLK>,
<&bpmp TEGRA186_CLK_GPU>;
clock-names = "gpu", "pwr";
resets = <&bpmp TEGRA186_RESET_GPU>;
reset-names = "gpu";
power-domains = <&bpmp TEGRA186_POWER_DOMAIN_GPU>;
iommus = <&smmu TEGRA186_SID_GPU>;
};
|
