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Documentation: of: Document the bindings used by Juno R1 PCIe host bridge
ARM's Juno R1 board used PLDA XpressRICH3-AXI IP to implement a PCIe host
bridge. Introduce "plda" as vendor prefix for PLDA and document the DT
bindings for PLDA XpressRICH3-AXI IP as well as ARM's Juno R1.
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
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Documentation/devicetree/bindings/pci/arm,juno-r1-pcie.txt
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Documentation/devicetree/bindings/pci/arm,juno-r1-pcie.txt
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* ARM Juno R1 PCIe interface
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This PCIe host controller is based on PLDA XpressRICH3-AXI IP
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and thus inherits all the common properties defined in plda,xpressrich3-axi.txt
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as well as the base properties defined in host-generic-pci.txt.
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Required properties:
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- compatible: "arm,juno-r1-pcie"
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- dma-coherent: The host controller bridges the AXI transactions into PCIe bus
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in a manner that makes the DMA operations to appear coherent to the CPUs.
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Documentation/devicetree/bindings/pci/plda,xpressrich3-axi.txt
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Documentation/devicetree/bindings/pci/plda,xpressrich3-axi.txt
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* PLDA XpressRICH3-AXI host controller
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The PLDA XpressRICH3-AXI host controller can be configured in a manner that
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makes it compliant with the SBSA[1] standard published by ARM Ltd. For those
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scenarios, the host-generic-pci.txt bindings apply with the following additions
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to the compatible property:
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Required properties:
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- compatible: should contain "plda,xpressrich3-axi" to identify the IP used.
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[1] http://infocenter.arm.com/help/topic/com.arm.doc.den0029a/
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Documentation/devicetree/bindings/vendor-prefixes.txt
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Documentation/devicetree/bindings/vendor-prefixes.txt