[PATCH 05/38] dt-bindings: firmware: tegra186-bpmp: Document interconnect paths
From: Thierry Reding <hidden>
Date: 2020-06-12 14:19:21
Also in:
linux-tegra
Subsystem:
open firmware and flattened device tree bindings, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
From: Thierry Reding <redacted> Document the interconnects property that is used to describe the paths from and to system memory from and to the BPMP. Signed-off-by: Thierry Reding <redacted> --- .../firmware/nvidia,tegra186-bpmp.yaml | 21 +++++++++++++++++++ 1 file changed, 21 insertions(+)
diff --git a/Documentation/devicetree/bindings/firmware/nvidia,tegra186-bpmp.yaml b/Documentation/devicetree/bindings/firmware/nvidia,tegra186-bpmp.yaml
index 0e4d51ba7aa1..fd642eeb8dde 100644
--- a/Documentation/devicetree/bindings/firmware/nvidia,tegra186-bpmp.yaml
+++ b/Documentation/devicetree/bindings/firmware/nvidia,tegra186-bpmp.yaml@@ -43,6 +43,21 @@ properties: - enum: - nvidia,tegra186-bpmp + interconnects: + description: A list of phandle and specifier pairs that describe the + interconnect paths to and from the BPMP. + $ref: "/schemas/types.yaml#/definitions/phandle-array" + + interconnect-names: + description: One string for each pair of phandle and specifier in the + "interconnects" property. + $ref: "/schemas/types.yaml#/definitions/string-array" + items: + - const: read + - const: write + - const: dma-mem # dma-read + - const: dma-write + iommus: description: | The phandle of the IOMMU and the IOMMU specifier. See ../iommu/iommu.txt
@@ -158,6 +173,12 @@ examples: bpmp { compatible = "nvidia,tegra186-bpmp"; + interconnects = <&mc TEGRA186_MEMORY_CLIENT_BPMPR &emc>, + <&mc TEGRA186_MEMORY_CLIENT_BPMPW &emc>, + <&mc TEGRA186_MEMORY_CLIENT_BPMPDMAR &emc>, + <&mc TEGRA186_MEMORY_CLIENT_BPMPDMAW &emc>; + interconnect-names = "read", "write", "dma-mem", "dma-write"; + iommus = <&smmu TEGRA186_SID_BPMP>; mboxes = <&hsp_top0 TEGRA_HSP_MBOX_TYPE_DB TEGRA_HSP_DB_MASTER_BPMP>; shmem = <&cpu_bpmp_tx &cpu_bpmp_rx>;
--
2.24.1