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arm64: tegra: Add NVDEC on Tegra234

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Add a device tree node for NVDEC on Tegra234.

Booting the firmware requires some information regarding offsets
within the firmware binary. These are passed through the device
tree, but since the values vary depending on the firmware version,
and the firmware itself is not available to the OS, the flasher is
expected to provide a device tree overlay with values corresponding
to the firmware it is flashing. The overlay then replaces the
placeholder values here.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Mikko Perttunen
2022-09-20 11:11:59 +03:00
committed by Thierry Reding
parent e25770feb6
commit 68c31ad011
1 changed files with 36 additions and 0 deletions
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36
arch/arm64/boot/dts/nvidia/tegra234.dtsi
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@@ -603,6 +603,42 @@
iommus = <&smmu_niso1 TEGRA234_SID_VIC>;
dma-coherent;
};
nvdec@15480000 {
compatible = "nvidia,tegra234-nvdec";
reg = <0x15480000 0x00040000>;
clocks = <&bpmp TEGRA234_CLK_NVDEC>,
<&bpmp TEGRA234_CLK_FUSE>,
<&bpmp TEGRA234_CLK_TSEC_PKA>;
clock-names = "nvdec", "fuse", "tsec_pka";
resets = <&bpmp TEGRA234_RESET_NVDEC>;
reset-names = "nvdec";
power-domains = <&bpmp TEGRA234_POWER_DOMAIN_NVDEC>;
interconnects = <&mc TEGRA234_MEMORY_CLIENT_NVDECSRD &emc>,
<&mc TEGRA234_MEMORY_CLIENT_NVDECSWR &emc>;
interconnect-names = "dma-mem", "write";
iommus = <&smmu_niso1 TEGRA234_SID_NVDEC>;
dma-coherent;
nvidia,memory-controller = <&mc>;
/*
* Placeholder values that firmware needs to update with the real
* offsets parsed from the microcode headers.
*/
nvidia,bl-manifest-offset = <0>;
nvidia,bl-data-offset = <0>;
nvidia,bl-code-offset = <0>;
nvidia,os-manifest-offset = <0>;
nvidia,os-data-offset = <0>;
nvidia,os-code-offset = <0>;
/*
* Firmware needs to set this to "okay" once the above values have
* been updated.
*/
status = "disabled";
};
};
gpio: gpio@2200000 {