NVIDIA Tegra Graphics Processing Units Required properties: - compatible: "nvidia," Currently recognized values: - nvidia,gk20a - nvidia,gm20b - nvidia,gp10b - nvidia,gv11b - 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 If the compatible string is "nvidia,gv11b", then the following clock is also required: - fuse - 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 = , ; 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 = , ; 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 = ; 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>; }; Example for GV11B: gpu@17000000 { compatible = "nvidia,gv11b"; reg = <0x17000000 0x1000000>, <0x18000000 0x1000000>; interrupts = , ; interrupt-names = "stall", "nonstall"; clocks = <&bpmp TEGRA194_CLK_GPCCLK>, <&bpmp TEGRA194_CLK_GPU_PWR>, <&bpmp TEGRA194_CLK_FUSE>; clock-names = "gpu", "pwr", "fuse"; resets = <&bpmp TEGRA194_RESET_GPU>; reset-names = "gpu"; dma-coherent; power-domains = <&bpmp TEGRA194_POWER_DOMAIN_GPU>; iommus = <&smmu TEGRA194_SID_GPU>; };