RS690_AIC_CTRL_SCRATCH
tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);
WREG32_MC(RS690_AIC_CTRL_SCRATCH, tmp);
tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);
WREG32_MC(RS690_AIC_CTRL_SCRATCH, tmp);
tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);