OCPAR
return RTL_R32(tp, OCPAR) & OCPAR_FLAG;
RTL_W32(tp, OCPAR, 0x0fu << 12 | (reg & 0x0fff));
RTL_W32(tp, OCPAR, OCPAR_FLAG | ((u32)mask & 0x0f) << 12 | (reg & 0x0fff));