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Guillaume Tucker7fa049d2017-05-03 10:56:25 +01001ARM Mali Midgard GPU
2====================
3
4Required properties:
5
6- compatible :
7 * Must contain one of the following:
8 + "arm,mali-t604"
9 + "arm,mali-t624"
10 + "arm,mali-t628"
11 + "arm,mali-t720"
12 + "arm,mali-t760"
13 + "arm,mali-t820"
14 + "arm,mali-t830"
15 + "arm,mali-t860"
16 + "arm,mali-t880"
17 * which must be preceded by one of the following vendor specifics:
18 + "amlogic,meson-gxm-mali"
19 + "rockchip,rk3288-mali"
20
21- reg : Physical base address of the device and length of the register area.
22
23- interrupts : Contains the three IRQ lines required by Mali Midgard devices.
24
25- interrupt-names : Contains the names of IRQ resources in the order they were
26 provided in the interrupts property. Must contain: "job", "mmu", "gpu".
27
28
29Optional properties:
30
31- clocks : Phandle to clock for the Mali Midgard device.
32
33- mali-supply : Phandle to regulator for the Mali device. Refer to
34 Documentation/devicetree/bindings/regulator/regulator.txt for details.
35
36- operating-points-v2 : Refer to Documentation/devicetree/bindings/power/opp.txt
37 for details.
38
39
40Example for a Mali-T760:
41
42gpu@ffa30000 {
43 compatible = "rockchip,rk3288-mali", "arm,mali-t760", "arm,mali-midgard";
44 reg = <0xffa30000 0x10000>;
45 interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
46 <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
47 <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
48 interrupt-names = "job", "mmu", "gpu";
49 clocks = <&cru ACLK_GPU>;
50 mali-supply = <&vdd_gpu>;
51 operating-points-v2 = <&gpu_opp_table>;
52 power-domains = <&power RK3288_PD_GPU>;
53};
54
55gpu_opp_table: opp_table0 {
56 compatible = "operating-points-v2";
57
58 opp@533000000 {
59 opp-hz = /bits/ 64 <533000000>;
60 opp-microvolt = <1250000>;
61 };
62 opp@450000000 {
63 opp-hz = /bits/ 64 <450000000>;
64 opp-microvolt = <1150000>;
65 };
66 opp@400000000 {
67 opp-hz = /bits/ 64 <400000000>;
68 opp-microvolt = <1125000>;
69 };
70 opp@350000000 {
71 opp-hz = /bits/ 64 <350000000>;
72 opp-microvolt = <1075000>;
73 };
74 opp@266000000 {
75 opp-hz = /bits/ 64 <266000000>;
76 opp-microvolt = <1025000>;
77 };
78 opp@160000000 {
79 opp-hz = /bits/ 64 <160000000>;
80 opp-microvolt = <925000>;
81 };
82 opp@100000000 {
83 opp-hz = /bits/ 64 <100000000>;
84 opp-microvolt = <912500>;
85 };
86};