ixCG_CLKPIN_CNTL_2
orig = data = RREG32_SMC(ixCG_CLKPIN_CNTL_2);
WREG32_SMC(ixCG_CLKPIN_CNTL_2, data);
tmp = RREG32_SMC(ixCG_CLKPIN_CNTL_2);