1*4882a593SmuzhiyunNetlogic XLP Family GPIO 2*4882a593Smuzhiyun======================== 3*4882a593Smuzhiyun 4*4882a593SmuzhiyunThis GPIO driver is used for following Netlogic XLP SoCs: 5*4882a593Smuzhiyun XLP832, XLP316, XLP208, XLP980, XLP532 6*4882a593SmuzhiyunThis GPIO driver is also compatible with GPIO controller found on 7*4882a593SmuzhiyunBroadcom Vulcan ARM64. 8*4882a593Smuzhiyun 9*4882a593SmuzhiyunRequired properties: 10*4882a593Smuzhiyun------------------- 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun- compatible: Should be one of the following: 13*4882a593Smuzhiyun - "netlogic,xlp832-gpio": For Netlogic XLP832 14*4882a593Smuzhiyun - "netlogic,xlp316-gpio": For Netlogic XLP316 15*4882a593Smuzhiyun - "netlogic,xlp208-gpio": For Netlogic XLP208 16*4882a593Smuzhiyun - "netlogic,xlp980-gpio": For Netlogic XLP980 17*4882a593Smuzhiyun - "netlogic,xlp532-gpio": For Netlogic XLP532 18*4882a593Smuzhiyun - "brcm,vulcan-gpio": For Broadcom Vulcan ARM64 19*4882a593Smuzhiyun- reg: Physical base address and length of the controller's registers. 20*4882a593Smuzhiyun- #gpio-cells: Should be two. The first cell is the pin number and the second 21*4882a593Smuzhiyun cell is used to specify optional parameters (currently unused). 22*4882a593Smuzhiyun- gpio-controller: Marks the device node as a GPIO controller. 23*4882a593Smuzhiyun- nr-gpios: Number of GPIO pins supported by the controller. 24*4882a593Smuzhiyun- interrupt-cells: Should be two. The first cell is the GPIO Number. The 25*4882a593Smuzhiyun second cell is used to specify flags. The following subset of flags is 26*4882a593Smuzhiyun supported: 27*4882a593Smuzhiyun - trigger type: 28*4882a593Smuzhiyun 1 = low to high edge triggered. 29*4882a593Smuzhiyun 2 = high to low edge triggered. 30*4882a593Smuzhiyun 4 = active high level-sensitive. 31*4882a593Smuzhiyun 8 = active low level-sensitive. 32*4882a593Smuzhiyun- interrupts: Interrupt number for this device. 33*4882a593Smuzhiyun- interrupt-controller: Identifies the node as an interrupt controller. 34*4882a593Smuzhiyun 35*4882a593SmuzhiyunExample: 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun gpio: xlp_gpio@34000 { 38*4882a593Smuzhiyun compatible = "netlogic,xlp316-gpio"; 39*4882a593Smuzhiyun reg = <0 0x34100 0x1000 40*4882a593Smuzhiyun 0 0x35100 0x1000>; 41*4882a593Smuzhiyun #gpio-cells = <2>; 42*4882a593Smuzhiyun gpio-controller; 43*4882a593Smuzhiyun nr-gpios = <57>; 44*4882a593Smuzhiyun 45*4882a593Smuzhiyun #interrupt-cells = <2>; 46*4882a593Smuzhiyun interrupt-parent = <&pic>; 47*4882a593Smuzhiyun interrupts = <39>; 48*4882a593Smuzhiyun interrupt-controller; 49*4882a593Smuzhiyun }; 50