mvpp2_tai_read
ts->tv_sec = (u64)mvpp2_tai_read(base + 0) << 32 |
mvpp2_tai_read(base + 4) << 16 |
mvpp2_tai_read(base + 8);
ts->tv_nsec = mvpp2_tai_read(base + 12) << 16 |
mvpp2_tai_read(base + 16);