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The two device tree files octeon_3xxx.dts and octeon_68xx.dts are trimmed by code in a subsequent patch to reflect the hardware actually present on the board. To this end several properties that are not part of the declared bindings are added to aid in trimming off unwanted nodes. Since the device tree and the code that trims it are bound into the kernel binary, these 'marker' properties never escape into the wild, and are purely an implementation detail of the kernel early boot process. This is done for backwards compatibility with existing boards (identified by a board type enumeration value by their bootloaders). New boards will always pass a device tree from the bootloader, the built-in trees are ignored in this case. Signed-off-by: David Daney <david.daney@cavium.com> Cc: linux-mips@linux-mips.org Cc: devicetree-discuss@lists.ozlabs.org Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Rob Herring <rob.herring@calxeda.com> Cc: linux-kernel@vger.kernel.org Cc: David Daney <david.daney@cavium.com> Patchwork: https://patchwork.linux-mips.org/patch/3937/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
40 lines
1.4 KiB
Plaintext
40 lines
1.4 KiB
Plaintext
* MIX Ethernet controller.
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Properties:
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- compatible: "cavium,octeon-5750-mix"
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Compatibility with all cn5XXX and cn6XXX SOCs populated with MIX
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devices.
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- reg: The base addresses of four separate register banks. The first
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bank contains the MIX registers. The second bank the corresponding
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AGL registers. The third bank are the AGL registers shared by all
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MIX devices present. The fourth bank is the AGL_PRT_CTL shared by
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all MIX devices present.
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- cell-index: A single cell specifying which portion of the shared
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register banks corresponds to this MIX device.
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- interrupts: Two interrupt specifiers. The first is the MIX
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interrupt routing and the second the routing for the AGL interrupts.
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- mac-address: Optional, the MAC address to assign to the device.
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- local-mac-address: Optional, the MAC address to assign to the device
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if mac-address is not specified.
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- phy-handle: Optional, a phandle for the PHY device connected to this device.
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Example:
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ethernet@1070000100800 {
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compatible = "cavium,octeon-5750-mix";
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reg = <0x10700 0x00100800 0x0 0x100>, /* MIX */
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<0x11800 0xE0000800 0x0 0x300>, /* AGL */
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<0x11800 0xE0000400 0x0 0x400>, /* AGL_SHARED */
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<0x11800 0xE0002008 0x0 0x8>; /* AGL_PRT_CTL */
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cell-index = <1>;
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interrupts = <1 18>, < 1 46>;
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local-mac-address = [ 00 0f b7 10 63 54 ];
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phy-handle = <&phy1>;
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};
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