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author | Liviu Dudau <Liviu.Dudau@arm.com> | 2015-10-09 17:47:03 +0100 |
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committer | Liviu Dudau <Liviu.Dudau@arm.com> | 2015-10-26 10:02:37 +0000 |
commit | e8e1dc803f0f7b60119d7988a9032d53628deca3 (patch) | |
tree | 3963a5929df7b065428916d83f6af0a5a8f5b6cd /Documentation/devicetree/bindings/pci | |
parent | 049e6dde7e57f0054fdc49102e7ef4830c698b46 (diff) | |
download | op-kernel-dev-e8e1dc803f0f7b60119d7988a9032d53628deca3.zip op-kernel-dev-e8e1dc803f0f7b60119d7988a9032d53628deca3.tar.gz |
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>
Diffstat (limited to 'Documentation/devicetree/bindings/pci')
-rw-r--r-- | Documentation/devicetree/bindings/pci/arm,juno-r1-pcie.txt | 10 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/pci/plda,xpressrich3-axi.txt | 12 |
2 files changed, 22 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pci/arm,juno-r1-pcie.txt b/Documentation/devicetree/bindings/pci/arm,juno-r1-pcie.txt new file mode 100644 index 0000000..f7514c1 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/arm,juno-r1-pcie.txt @@ -0,0 +1,10 @@ +* ARM Juno R1 PCIe interface + +This PCIe host controller is based on PLDA XpressRICH3-AXI IP +and thus inherits all the common properties defined in plda,xpressrich3-axi.txt +as well as the base properties defined in host-generic-pci.txt. + +Required properties: + - compatible: "arm,juno-r1-pcie" + - dma-coherent: The host controller bridges the AXI transactions into PCIe bus + in a manner that makes the DMA operations to appear coherent to the CPUs. diff --git a/Documentation/devicetree/bindings/pci/plda,xpressrich3-axi.txt b/Documentation/devicetree/bindings/pci/plda,xpressrich3-axi.txt new file mode 100644 index 0000000..f3f75bf --- /dev/null +++ b/Documentation/devicetree/bindings/pci/plda,xpressrich3-axi.txt @@ -0,0 +1,12 @@ +* PLDA XpressRICH3-AXI host controller + +The PLDA XpressRICH3-AXI host controller can be configured in a manner that +makes it compliant with the SBSA[1] standard published by ARM Ltd. For those +scenarios, the host-generic-pci.txt bindings apply with the following additions +to the compatible property: + +Required properties: + - compatible: should contain "plda,xpressrich3-axi" to identify the IP used. + + +[1] http://infocenter.arm.com/help/topic/com.arm.doc.den0029a/ |