Re: [PATCH v4 1/8] dt-bindings: Add Cavium Octeon Common Ethernet Interface.
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From: Andrew Lunn <hidden>
Date: 2017-11-29 02:02:31
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linux-devicetree, linux-mips, lkml
On Tue, Nov 28, 2017 at 04:55:33PM -0800, David Daney wrote:
quoted hunk ↗ jump to hunk
From: Carlos Munoz <cmunoz-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org> Add bindings for Common Ethernet Interface (BGX) block. Acked-by: Rob Herring <redacted> Signed-off-by: Carlos Munoz <cmunoz-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org> Signed-off-by: Steven J. Hill <Steven.Hill-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org> Signed-off-by: David Daney <david.daney-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org> --- .../devicetree/bindings/net/cavium-bgx.txt | 61 ++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/cavium-bgx.txtdiff --git a/Documentation/devicetree/bindings/net/cavium-bgx.txt b/Documentation/devicetree/bindings/net/cavium-bgx.txt new file mode 100644 index 000000000000..830c5f08dddd --- /dev/null +++ b/Documentation/devicetree/bindings/net/cavium-bgx.txt@@ -0,0 +1,61 @@ +* Common Ethernet Interface (BGX) block + +Properties: + +- compatible: "cavium,octeon-7890-bgx": Compatibility with all cn7xxx SOCs. + +- reg: The base address of the BGX block. + +- #address-cells: Must be <1>. + +- #size-cells: Must be <0>. BGX addresses have no size component. + +A BGX block has several children, each representing an Ethernet +interface. + + +* Ethernet Interface (BGX port) connects to PKI/PKO + +Properties: + +- compatible: "cavium,octeon-7890-bgx-port": Compatibility with all + cn7xxx SOCs. + + "cavium,octeon-7360-xcv": Compatibility with cn73xx SOCs + for RGMII. + +- reg: The index of the interface within the BGX block. + +Optional properties: + +- local-mac-address: Mac address for the interface. + +- phy-handle: phandle to the phy node connected to the interface. + +- phy-mode: described in ethernet.txt. + +- fixed-link: described in fixed-link.txt. + +Example: + + ethernet-mac-nexus@11800e0000000 { + compatible = "cavium,octeon-7890-bgx"; + reg = <0x00011800 0xe0000000 0x00000000 0x01000000>;
Hi David In the probe function we have: + reg = of_get_property(pdev->dev.of_node, "reg", NULL); + addr = of_translate_address(pdev->dev.of_node, reg); + interface = (addr >> 24) & 0xf; + numa_node = (addr >> 36) & 0x7; Is this documented somewhere? The numa_node is particularly interesting. MMIO changes depends on what node this is in the cluster? Andrew -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html