KVASER_PCIEFD_KCAN_STAT_REG
status = ioread32(can->reg_base + KVASER_PCIEFD_KCAN_STAT_REG);
status = ioread32(can->reg_base + KVASER_PCIEFD_KCAN_STAT_REG);
status = ioread32(can->reg_base + KVASER_PCIEFD_KCAN_STAT_REG);