tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1* Smart Mixed-Signal Connectivity (SMSC) LAN911x/912x Controller
2
3Required properties:
4- compatible : Should be "smsc,lan<model>", "smsc,lan9115"
5- reg : Address and length of the io space for SMSC LAN
6- interrupts : Should contain SMSC LAN interrupt line
7- interrupt-parent : Should be the phandle for the interrupt controller
8 that services interrupts for this device
9- phy-mode : String, operation mode of the PHY interface.
10 Supported values are: "mii", "gmii", "sgmii", "tbi", "rmii",
11 "rgmii", "rgmii-id", "rgmii-rxid", "rgmii-txid", "rtbi", "smii".
12
13Optional properties:
14- reg-shift : Specify the quantity to shift the register offsets by
15- reg-io-width : Specify the size (in bytes) of the IO accesses that
16 should be performed on the device. Valid value for SMSC LAN is
17 2 or 4. If it's omitted or invalid, the size would be 2.
18- smsc,irq-active-high : Indicates the IRQ polarity is active-high
19- smsc,irq-push-pull : Indicates the IRQ type is push-pull
20- smsc,force-internal-phy : Forces SMSC LAN controller to use
21 internal PHY
22- smsc,force-external-phy : Forces SMSC LAN controller to use
23 external PHY
24- smsc,save-mac-address : Indicates that mac address needs to be saved
25 before resetting the controller
26- local-mac-address : 6 bytes, mac address
27
28Examples:
29
30lan9220@f4000000 {
31 compatible = "smsc,lan9220", "smsc,lan9115";
32 reg = <0xf4000000 0x2000000>;
33 phy-mode = "mii";
34 interrupt-parent = <&gpio1>;
35 interrupts = <31>;
36 reg-io-width = <4>;
37 smsc,irq-push-pull;
38};