1*4882a593SmuzhiyunMemory mapped SJA1000 CAN controller from NXP (formerly Philips) 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunRequired properties: 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun- compatible : should be one of "nxp,sja1000", "technologic,sja1000". 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun- reg : should specify the chip select, address offset and size required 8*4882a593Smuzhiyun to map the registers of the SJA1000. The size is usually 0x80. 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun- interrupts: property with a value describing the interrupt source 11*4882a593Smuzhiyun (number and sensitivity) required for the SJA1000. 12*4882a593Smuzhiyun 13*4882a593SmuzhiyunOptional properties: 14*4882a593Smuzhiyun 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 is 1, 2 or 4. 17*4882a593Smuzhiyun This property is ignored for technologic version. 18*4882a593Smuzhiyun Default to 1 (8 bits). 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun- nxp,external-clock-frequency : Frequency of the external oscillator 21*4882a593Smuzhiyun clock in Hz. Note that the internal clock frequency used by the 22*4882a593Smuzhiyun SJA1000 is half of that value. If not specified, a default value 23*4882a593Smuzhiyun of 16000000 (16 MHz) is used. 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun- nxp,tx-output-mode : operation mode of the TX output control logic: 26*4882a593Smuzhiyun <0x0> : bi-phase output mode 27*4882a593Smuzhiyun <0x1> : normal output mode (default) 28*4882a593Smuzhiyun <0x2> : test output mode 29*4882a593Smuzhiyun <0x3> : clock output mode 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun- nxp,tx-output-config : TX output pin configuration: 32*4882a593Smuzhiyun <0x01> : TX0 invert 33*4882a593Smuzhiyun <0x02> : TX0 pull-down (default) 34*4882a593Smuzhiyun <0x04> : TX0 pull-up 35*4882a593Smuzhiyun <0x06> : TX0 push-pull 36*4882a593Smuzhiyun <0x08> : TX1 invert 37*4882a593Smuzhiyun <0x10> : TX1 pull-down 38*4882a593Smuzhiyun <0x20> : TX1 pull-up 39*4882a593Smuzhiyun <0x30> : TX1 push-pull 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun- nxp,clock-out-frequency : clock frequency in Hz on the CLKOUT pin. 42*4882a593Smuzhiyun If not specified or if the specified value is 0, the CLKOUT pin 43*4882a593Smuzhiyun will be disabled. 44*4882a593Smuzhiyun 45*4882a593Smuzhiyun- nxp,no-comparator-bypass : Allows to disable the CAN input comparator. 46*4882a593Smuzhiyun 47*4882a593SmuzhiyunFor further information, please have a look to the SJA1000 data sheet. 48*4882a593Smuzhiyun 49*4882a593SmuzhiyunExamples: 50*4882a593Smuzhiyun 51*4882a593Smuzhiyuncan@3,100 { 52*4882a593Smuzhiyun compatible = "nxp,sja1000"; 53*4882a593Smuzhiyun reg = <3 0x100 0x80>; 54*4882a593Smuzhiyun interrupts = <2 0>; 55*4882a593Smuzhiyun interrupt-parent = <&mpic>; 56*4882a593Smuzhiyun nxp,external-clock-frequency = <16000000>; 57*4882a593Smuzhiyun}; 58*4882a593Smuzhiyun 59