Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt

   1 NVIDIA Tegra Graphics Processing Units
   2
   3 Required properties:
   4 - compatible: "nvidia,<gpu>"
   5   Currently recognized values:
   6   - nvidia,gk20a
   7   - nvidia,gm20b
   8   - nvidia,gp10b
   9 - reg: Physical base address and length of the controller's registers.
  10   Must contain two entries:
  11   - first entry for bar0
  12   - second entry for bar1
  13 - interrupts: Must contain an entry for each entry in interrupt-names.
  14   See ../interrupt-controller/interrupts.txt for details.
  15 - interrupt-names: Must include the following entries:
  16   - stall
  17   - nonstall
  18 - vdd-supply: regulator for supply voltage. Only required for GPUs not using
  19   power domains.
  20 - clocks: Must contain an entry for each entry in clock-names.
  21   See ../clocks/clock-bindings.txt for details.
  22 - clock-names: Must include the following entries:
  23   - gpu
  24   - pwr
  25 If the compatible string is "nvidia,gm20b", then the following clock
  26 is also required:
  27   - ref
  28 - resets: Must contain an entry for each entry in reset-names.
  29   See ../reset/reset.txt for details.
  30 - reset-names: Must include the following entries:
  31   - gpu
  32 - power-domains: GPUs that make use of power domains can define this property
  33   instead of vdd-supply. Currently "nvidia,gp10b" makes use of this.
  34
  35 Optional properties:
  36 - iommus: A reference to the IOMMU. See ../iommu/iommu.txt for details.
  37
  38 Example for GK20A:
  39
  40         gpu@57000000 {
  41                 compatible = "nvidia,gk20a";
  42                 reg = <0x0 0x57000000 0x0 0x01000000>,
  43                       <0x0 0x58000000 0x0 0x01000000>;
  44                 interrupts = <GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>,
  45                              <GIC_SPI 158 IRQ_TYPE_LEVEL_HIGH>;
  46                 interrupt-names = "stall", "nonstall";
  47                 vdd-supply = <&vdd_gpu>;
  48                 clocks = <&tegra_car TEGRA124_CLK_GPU>,
  49                          <&tegra_car TEGRA124_CLK_PLL_P_OUT5>;
  50                 clock-names = "gpu", "pwr";
  51                 resets = <&tegra_car 184>;
  52                 reset-names = "gpu";
  53                 iommus = <&mc TEGRA_SWGROUP_GPU>;
  54                 status = "disabled";
  55         };
  56
  57 Example for GM20B:
  58
  59         gpu@57000000 {
  60                 compatible = "nvidia,gm20b";
  61                 reg = <0x0 0x57000000 0x0 0x01000000>,
  62                       <0x0 0x58000000 0x0 0x01000000>;
  63                 interrupts = <GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>,
  64                              <GIC_SPI 158 IRQ_TYPE_LEVEL_HIGH>;
  65                 interrupt-names = "stall", "nonstall";
  66                 clocks = <&tegra_car TEGRA210_CLK_GPU>,
  67                          <&tegra_car TEGRA210_CLK_PLL_P_OUT5>,
  68                          <&tegra_car TEGRA210_CLK_PLL_G_REF>;
  69                 clock-names = "gpu", "pwr", "ref";
  70                 resets = <&tegra_car 184>;
  71                 reset-names = "gpu";
  72                 iommus = <&mc TEGRA_SWGROUP_GPU>;
  73                 status = "disabled";
  74         };
  75
  76 Example for GP10B:
  77
  78         gpu@17000000 {
  79                 compatible = "nvidia,gp10b";
  80                 reg = <0x0 0x17000000 0x0 0x1000000>,
  81                       <0x0 0x18000000 0x0 0x1000000>;
  82                 interrupts = <GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH
  83                               GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
  84                 interrupt-names = "stall", "nonstall";
  85                 clocks = <&bpmp TEGRA186_CLK_GPCCLK>,
  86                          <&bpmp TEGRA186_CLK_GPU>;
  87                 clock-names = "gpu", "pwr";
  88                 resets = <&bpmp TEGRA186_RESET_GPU>;
  89                 reset-names = "gpu";
  90                 power-domains = <&bpmp TEGRA186_POWER_DOMAIN_GPU>;
  91                 iommus = <&smmu TEGRA186_SID_GPU>;
  92                 status = "disabled";
  93         };