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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add binding for ZynqMP R5 OpenAMP. Represent the RPU domain resources in one device node. Each RPU processor is a subnode of the top RPU domain node. Signed-off-by: Ben Levinsky Signed-off-by: Jason Wu Signed-off-by: Wendy Liang Signed-off-by: Michal Simek --- v3: - update zynqmp_r5 yaml parsing to not raise warnings for extra information in children of R5 node. The warning "node has a unit name, but no reg or ranges property" will still be raised though as this particular node is needed to describe the '#address-cells' and '#size-cells' information. v4:: - remove warning '/example-0/rpu@ff9a0000/r5@0: node has a unit name, but no reg or ranges property' by adding reg to r5 node. v5: - update device tree sample and yaml parsing to not raise any warnings - description for memory-region in yaml parsing - compatible string in yaml parsing for TCM v6: - remove coupling TCM nodes with remoteproc - remove mailbox as it is optional not needed v7: - change lockstep-mode to xlnx,cluster-mode --- .../xilinx,zynqmp-r5-remoteproc.yaml | 73 +++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 Documentation/devicetree/bindings/remoteproc/xilinx,zynqmp-r5-remoteproc.yaml diff --git a/Documentation/devicetree/bindings/remoteproc/xilinx,zynqmp-r5-remoteproc.yaml b/Documentation/devicetree/bindings/remoteproc/xilinx,zynqmp-r5-remoteproc.yaml new file mode 100644 index 000000000000..54f916d9b037 --- /dev/null +++ b/Documentation/devicetree/bindings/remoteproc/xilinx,zynqmp-r5-remoteproc.yaml @@ -0,0 +1,73 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/remoteproc/xilinx,zynqmp-r5-remoteproc.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: Xilinx R5 remote processor controller bindings + +description: + This document defines the binding for the remoteproc component that loads and + boots firmwares on the Xilinx Zynqmp and Versal family chipset. + + Note that the Linux has global addressing view of the R5-related memory (TCM) + so the absolute address ranges are provided in TCM reg's. +maintainers: + - Ed Mooring + - Ben Levinsky + +properties: + compatible: + const: "xlnx,zynqmp-r5-remoteproc-1.0" + + lockstep-mode: + description: + R5 core configuration (split is 0 or lock-step and 1) + maxItems: 1 + + interrupts: + description: + Interrupt mapping for remoteproc IPI. It is required if the + user uses the remoteproc driver with the RPMsg kernel driver. + maxItems: 6 + + memory-region: + description: + collection of memory carveouts used for elf-loading and inter-processor + communication. + maxItems: 4 + minItems: 4 + pnode-id: + maxItems: 1 + mboxes: + maxItems: 2 + mbox-names: + maxItems: 2 + +examples: + - | + reserved-memory { + #address-cells = <1>; + #size-cells = <1>; + ranges; + elf_load: rproc@3ed000000 { + no-map; + reg = <0x3ed00000 0x40000>; + }; + }; + rpu { + compatible = "xlnx,zynqmp-r5-remoteproc-1.0"; + #address-cells = <1>; + #size-cells = <1>; + ranges; + lockstep-mode = <0>; + r5_0 { + ranges; + #address-cells = <1>; + #size-cells = <1>; + memory-region = <&elf_load>; + pnode-id = <0x7>; + }; + }; + +... -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel