forked from Minki/linux
22899eca58
Introduce "ti,cpsw-mdio" compatible string for Davinci MDIO, because it's required to distinguish the case when MDIO is part of TI CPSW to enable features supported by TI CPSW (for example, enable PM management). Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
37 lines
1.0 KiB
Plaintext
37 lines
1.0 KiB
Plaintext
TI SoC Davinci/Keystone2 MDIO Controller Device Tree Bindings
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---------------------------------------------------
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Required properties:
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- compatible : Should be "ti,davinci_mdio"
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and "ti,keystone_mdio" for Keystone 2 SoCs
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and "ti,cpsw-mdio" for am335x, am472x, am57xx/dra7, dm814x SoCs
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and "ti,am4372-mdio" for am472x SoC
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- reg : physical base address and size of the davinci mdio
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registers map
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- bus_freq : Mdio Bus frequency
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Optional properties:
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- ti,hwmods : Must be "davinci_mdio"
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Note: "ti,hwmods" field is used to fetch the base address and irq
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resources from TI, omap hwmod data base during device registration.
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Future plan is to migrate hwmod data base contents into device tree
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blob so that, all the required data will be used from device tree dts
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file.
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Examples:
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mdio: davinci_mdio@4A101000 {
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compatible = "ti,davinci_mdio";
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reg = <0x4A101000 0x1000>;
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bus_freq = <1000000>;
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};
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(or)
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mdio: davinci_mdio@4A101000 {
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compatible = "ti,davinci_mdio";
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ti,hwmods = "davinci_mdio";
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bus_freq = <1000000>;
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};
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