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| author | Alexandre Courbot <acourbot@nvidia.com> | 2016-03-28 11:23:02 +0200 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2016-04-26 18:40:16 +0200 |
| commit | 53cafb93da6fdafc5904c27a3da83123e72e7c13 (patch) | |
| tree | b5f2091b1a52c3cfaa7af40edb75195a6f77d07d /Documentation/devicetree | |
| parent | dt-bindings: gk20a: Document iommus property (diff) | |
| download | linux-53cafb93da6fdafc5904c27a3da83123e72e7c13.tar.xz linux-53cafb93da6fdafc5904c27a3da83123e72e7c13.zip | |
dt-bindings: Add documentation for GM20B GPU
GM20B's definition is mostly similar to GK20A's, but requires an
additional clock.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt b/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt index 1e3748337319..ff3db65e50de 100644 --- a/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt +++ b/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt @@ -1,9 +1,10 @@ -NVIDIA GK20A Graphics Processing Unit +NVIDIA Tegra Graphics Processing Units Required properties: - compatible: "nvidia,<gpu>" Currently recognized values: - nvidia,gk20a + - nvidia,gm20b - reg: Physical base address and length of the controller's registers. Must contain two entries: - first entry for bar0 @@ -19,6 +20,9 @@ Required properties: - clock-names: Must include the following entries: - gpu - pwr +If the compatible string is "nvidia,gm20b", then the following clock +is also required: + - ref - resets: Must contain an entry for each entry in reset-names. See ../reset/reset.txt for details. - reset-names: Must include the following entries: @@ -27,9 +31,9 @@ Required properties: Optional properties: - iommus: A reference to the IOMMU. See ../iommu/iommu.txt for details. -Example: +Example for GK20A: - gpu@0,57000000 { + gpu@57000000 { compatible = "nvidia,gk20a"; reg = <0x0 0x57000000 0x0 0x01000000>, <0x0 0x58000000 0x0 0x01000000>; @@ -45,3 +49,22 @@ Example: iommus = <&mc TEGRA_SWGROUP_GPU>; status = "disabled"; }; + +Example for GM20B: + + gpu@57000000 { + compatible = "nvidia,gm20b"; + reg = <0x0 0x57000000 0x0 0x01000000>, + <0x0 0x58000000 0x0 0x01000000>; + interrupts = <GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 158 IRQ_TYPE_LEVEL_HIGH>; + 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>; + status = "disabled"; + }; |