1*4882a593Smuzhiyun* Smart Mixed-Signal Connectivity (SMSC) LAN911x/912x Controller 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunRequired properties: 4*4882a593Smuzhiyun- compatible : Should be "smsc,lan<model>", "smsc,lan9115" 5*4882a593Smuzhiyun- reg : Address and length of the io space for SMSC LAN 6*4882a593Smuzhiyun- interrupts : one or two interrupt specifiers 7*4882a593Smuzhiyun - The first interrupt is the SMSC LAN interrupt line 8*4882a593Smuzhiyun - The second interrupt (if present) is the PME (power 9*4882a593Smuzhiyun management event) interrupt that is able to wake up the host 10*4882a593Smuzhiyun system with a 50ms pulse on network activity 11*4882a593Smuzhiyun- phy-mode : See ethernet.txt file in the same directory 12*4882a593Smuzhiyun 13*4882a593SmuzhiyunOptional properties: 14*4882a593Smuzhiyun- reg-shift : Specify the quantity to shift the register offsets by 15*4882a593Smuzhiyun- reg-io-width : Specify the size (in bytes) of the IO accesses that 16*4882a593Smuzhiyun should be performed on the device. Valid value for SMSC LAN is 17*4882a593Smuzhiyun 2 or 4. If it's omitted or invalid, the size would be 2. 18*4882a593Smuzhiyun- smsc,irq-active-high : Indicates the IRQ polarity is active-high 19*4882a593Smuzhiyun- smsc,irq-push-pull : Indicates the IRQ type is push-pull 20*4882a593Smuzhiyun- smsc,force-internal-phy : Forces SMSC LAN controller to use 21*4882a593Smuzhiyun internal PHY 22*4882a593Smuzhiyun- smsc,force-external-phy : Forces SMSC LAN controller to use 23*4882a593Smuzhiyun external PHY 24*4882a593Smuzhiyun- smsc,save-mac-address : Indicates that mac address needs to be saved 25*4882a593Smuzhiyun before resetting the controller 26*4882a593Smuzhiyun- reset-gpios : a GPIO line connected to the RESET (active low) signal 27*4882a593Smuzhiyun of the device. On many systems this is wired high so the device goes 28*4882a593Smuzhiyun out of reset at power-on, but if it is under program control, this 29*4882a593Smuzhiyun optional GPIO can wake up in response to it. 30*4882a593Smuzhiyun- vdd33a-supply, vddvario-supply : 3.3V analog and IO logic power supplies 31*4882a593Smuzhiyun 32*4882a593SmuzhiyunExamples: 33*4882a593Smuzhiyun 34*4882a593Smuzhiyunlan9220@f4000000 { 35*4882a593Smuzhiyun compatible = "smsc,lan9220", "smsc,lan9115"; 36*4882a593Smuzhiyun reg = <0xf4000000 0x2000000>; 37*4882a593Smuzhiyun phy-mode = "mii"; 38*4882a593Smuzhiyun interrupt-parent = <&gpio1>; 39*4882a593Smuzhiyun interrupts = <31>, <32>; 40*4882a593Smuzhiyun reset-gpios = <&gpio1 30 GPIO_ACTIVE_LOW>; 41*4882a593Smuzhiyun reg-io-width = <4>; 42*4882a593Smuzhiyun smsc,irq-push-pull; 43*4882a593Smuzhiyun}; 44