forked from Minki/linux
53cafb93da
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>
71 lines
2.1 KiB
Plaintext
71 lines
2.1 KiB
Plaintext
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
|
|
- 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.
|
|
- 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
|
|
- 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
|
|
|
|
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 = <GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>,
|
|
<GIC_SPI 158 IRQ_TYPE_LEVEL_HIGH>;
|
|
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>;
|
|
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";
|
|
};
|