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[4/8] arm64: tegra: Add NVDEC on Tegra234

Message ID 20220906132823.2390953-5-cyndis@kapsi.fi
State Changes Requested
Headers show
Series Support for NVDEC on Tegra234 | expand

Commit Message

Mikko Perttunen Sept. 6, 2022, 1:28 p.m. UTC 
From: Mikko Perttunen <mperttunen@nvidia.com>

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>
---
 arch/arm64/boot/dts/nvidia/tegra234.dtsi | 27 ++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/nvidia/tegra234.dtsi b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
index 81a0f599685f..65d49b27bc5f 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
@@ -586,6 +586,33 @@  vic@15340000 {
 				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, to be replaced with values from overlay */
+				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>;
+			};
 		};
 
 		gpio: gpio@2200000 {