noticed that there is a signal for generic timer called:
CNTVALUEB[63:0] Input Global system counter value in binary format
in Cortex®-A53 MPCore Processor Revision: r0p4 Technical Reference Manual A.6
how to get the value?
since I wanna the cycle counts after reset of processor, not the periodic counts after reset of PMCCNTR_EL0.
thanks.