1*c66ec88fSEmmanuel VadotAbracon ABX80X I2C ultra low power RTC/Alarm chip 2*c66ec88fSEmmanuel Vadot 3*c66ec88fSEmmanuel VadotThe Abracon ABX80X family consist of the ab0801, ab0803, ab0804, ab0805, ab1801, 4*c66ec88fSEmmanuel Vadotab1803, ab1804 and ab1805. The ab0805 is the superset of ab080x and the ab1805 5*c66ec88fSEmmanuel Vadotis the superset of ab180x. 6*c66ec88fSEmmanuel Vadot 7*c66ec88fSEmmanuel VadotRequired properties: 8*c66ec88fSEmmanuel Vadot 9*c66ec88fSEmmanuel Vadot - "compatible": should one of: 10*c66ec88fSEmmanuel Vadot "abracon,abx80x" 11*c66ec88fSEmmanuel Vadot "abracon,ab0801" 12*c66ec88fSEmmanuel Vadot "abracon,ab0803" 13*c66ec88fSEmmanuel Vadot "abracon,ab0804" 14*c66ec88fSEmmanuel Vadot "abracon,ab0805" 15*c66ec88fSEmmanuel Vadot "abracon,ab1801" 16*c66ec88fSEmmanuel Vadot "abracon,ab1803" 17*c66ec88fSEmmanuel Vadot "abracon,ab1804" 18*c66ec88fSEmmanuel Vadot "abracon,ab1805" 19*c66ec88fSEmmanuel Vadot "microcrystal,rv1805" 20*c66ec88fSEmmanuel Vadot Using "abracon,abx80x" will enable chip autodetection. 21*c66ec88fSEmmanuel Vadot - "reg": I2C bus address of the device 22*c66ec88fSEmmanuel Vadot 23*c66ec88fSEmmanuel VadotOptional properties: 24*c66ec88fSEmmanuel Vadot 25*c66ec88fSEmmanuel VadotThe abx804 and abx805 have a trickle charger that is able to charge the 26*c66ec88fSEmmanuel Vadotconnected battery or supercap. Both the following properties have to be defined 27*c66ec88fSEmmanuel Vadotand valid to enable charging: 28*c66ec88fSEmmanuel Vadot 29*c66ec88fSEmmanuel Vadot - "abracon,tc-diode": should be "standard" (0.6V) or "schottky" (0.3V) 30*c66ec88fSEmmanuel Vadot - "abracon,tc-resistor": should be <0>, <3>, <6> or <11>. 0 disables the output 31*c66ec88fSEmmanuel Vadot resistor, the other values are in kOhm. 32