Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt

   1 ARM Mali Midgard GPU
   2 ====================
   3
   4 Required 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     + "rockchip,rk3399-mali"
  21
  22 - reg : Physical base address of the device and length of the register area.
  23
  24 - interrupts : Contains the three IRQ lines required by Mali Midgard devices.
  25
  26 - interrupt-names : Contains the names of IRQ resources in the order they were
  27   provided in the interrupts property. Must contain: "job", "mmu", "gpu".
  28
  29
  30 Optional properties:
  31
  32 - clocks : Phandle to clock for the Mali Midgard device.
  33
  34 - clock-names : Specify the names of the clocks specified in clocks
  35   when multiple clocks are present.
  36     * core: clock driving the GPU itself (When only one clock is present,
  37       assume it's this clock.)
  38     * bus: bus clock for the GPU
  39
  40 - mali-supply : Phandle to regulator for the Mali device. Refer to
  41   Documentation/devicetree/bindings/regulator/regulator.txt for details.
  42
  43 - operating-points-v2 : Refer to Documentation/devicetree/bindings/opp/opp.txt
  44   for details.
  45
  46 - #cooling-cells: Refer to Documentation/devicetree/bindings/thermal/thermal.txt
  47   for details.
  48
  49 - resets : Phandle of the GPU reset line.
  50
  51 Vendor-specific bindings
  52 ------------------------
  53
  54 The Mali GPU is integrated very differently from one SoC to
  55 another. In order to accomodate those differences, you have the option
  56 to specify one more vendor-specific compatible, among:
  57
  58 - "amlogic,meson-gxm-mali"
  59   Required properties:
  60   - resets : Should contain phandles of :
  61     + GPU reset line
  62     + GPU APB glue reset line
  63
  64 Example for a Mali-T760:
  65
  66 gpu@ffa30000 {
  67         compatible = "rockchip,rk3288-mali", "arm,mali-t760";
  68         reg = <0xffa30000 0x10000>;
  69         interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
  70                      <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
  71                      <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
  72         interrupt-names = "job", "mmu", "gpu";
  73         clocks = <&cru ACLK_GPU>;
  74         mali-supply = <&vdd_gpu>;
  75         operating-points-v2 = <&gpu_opp_table>;
  76         power-domains = <&power RK3288_PD_GPU>;
  77         #cooling-cells = <2>;
  78 };
  79
  80 gpu_opp_table: opp_table0 {
  81         compatible = "operating-points-v2";
  82
  83         opp@533000000 {
  84                 opp-hz = /bits/ 64 <533000000>;
  85                 opp-microvolt = <1250000>;
  86         };
  87         opp@450000000 {
  88                 opp-hz = /bits/ 64 <450000000>;
  89                 opp-microvolt = <1150000>;
  90         };
  91         opp@400000000 {
  92                 opp-hz = /bits/ 64 <400000000>;
  93                 opp-microvolt = <1125000>;
  94         };
  95         opp@350000000 {
  96                 opp-hz = /bits/ 64 <350000000>;
  97                 opp-microvolt = <1075000>;
  98         };
  99         opp@266000000 {
 100                 opp-hz = /bits/ 64 <266000000>;
 101                 opp-microvolt = <1025000>;
 102         };
 103         opp@160000000 {
 104                 opp-hz = /bits/ 64 <160000000>;
 105                 opp-microvolt = <925000>;
 106         };
 107         opp@100000000 {
 108                 opp-hz = /bits/ 64 <100000000>;
 109                 opp-microvolt = <912500>;
 110         };
 111 };