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
  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
  29 Optional 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
  40 Example for a Mali-T760:
  41
  42 gpu@ffa30000 {
  43         compatible = "rockchip,rk3288-mali", "arm,mali-t760";
  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
  55 gpu_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 };