43 lines
1.7 KiB
Plaintext
43 lines
1.7 KiB
Plaintext
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* Smart Mixed-Signal Connectivity (SMSC) LAN911x/912x Controller
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Required properties:
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- compatible : Should be "smsc,lan<model>", "smsc,lan9115"
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- reg : Address and length of the io space for SMSC LAN
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- interrupts : one or two interrupt specifiers
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- The first interrupt is the SMSC LAN interrupt line
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- The second interrupt (if present) is the PME (power
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management event) interrupt that is able to wake up the host
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system with a 50ms pulse on network activity
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- phy-mode : See ethernet.txt file in the same directory
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Optional properties:
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- reg-shift : Specify the quantity to shift the register offsets by
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- reg-io-width : Specify the size (in bytes) of the IO accesses that
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should be performed on the device. Valid value for SMSC LAN is
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2 or 4. If it's omitted or invalid, the size would be 2.
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- smsc,irq-active-high : Indicates the IRQ polarity is active-high
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- smsc,irq-push-pull : Indicates the IRQ type is push-pull
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- smsc,force-internal-phy : Forces SMSC LAN controller to use
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internal PHY
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- smsc,force-external-phy : Forces SMSC LAN controller to use
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external PHY
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- smsc,save-mac-address : Indicates that mac address needs to be saved
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before resetting the controller
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- reset-gpios : a GPIO line connected to the RESET (active low) signal
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of the device. On many systems this is wired high so the device goes
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out of reset at power-on, but if it is under program control, this
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optional GPIO can wake up in response to it.
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Examples:
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lan9220@f4000000 {
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compatible = "smsc,lan9220", "smsc,lan9115";
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reg = <0xf4000000 0x2000000>;
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phy-mode = "mii";
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interrupt-parent = <&gpio1>;
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interrupts = <31>, <32>;
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reset-gpios = <&gpio1 30 GPIO_ACTIVE_LOW>;
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reg-io-width = <4>;
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smsc,irq-push-pull;
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};
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