CAM_Ena_Bit
int ena_bits = CAM_Ena_Bit(CAM_ENTRY_SOURCE);
ena_bits |= CAM_Ena_Bit(i + 2);
tc_writel(CAM_Ena_Bit(CAM_ENTRY_SOURCE), &tr->CAM_Ena);
tc_writel(CAM_Ena_Bit(CAM_ENTRY_SOURCE), &tr->CAM_Ena);