PTP_TDR
ext_write(bc, dev, PAGE4, PTP_TDR, ts->tv_nsec & 0xffff);/* ns[15:0] */
ext_write(bc, dev, PAGE4, PTP_TDR, ts->tv_nsec >> 16); /* ns[31:16] */
ext_write(bc, dev, PAGE4, PTP_TDR, ts->tv_sec & 0xffff); /* sec[15:0] */
ext_write(bc, dev, PAGE4, PTP_TDR, ts->tv_sec >> 16); /* sec[31:16]*/
ext_write(0, phydev, PAGE4, PTP_TDR, nsec & 0xffff); /* ns[15:0] */
ext_write(0, phydev, PAGE4, PTP_TDR, nsec >> 16); /* ns[31:16] */
ext_write(0, phydev, PAGE4, PTP_TDR, sec & 0xffff); /* sec[15:0] */
ext_write(0, phydev, PAGE4, PTP_TDR, sec >> 16); /* sec[31:16] */
ext_write(0, phydev, PAGE4, PTP_TDR, pwidth & 0xffff); /* ns[15:0] */
ext_write(0, phydev, PAGE4, PTP_TDR, pwidth >> 16); /* ns[31:16] */
ext_write(0, phydev, PAGE4, PTP_TDR, pwidth & 0xffff);
ext_write(0, phydev, PAGE4, PTP_TDR, pwidth >> 16);
val[0] = ext_read(phydev, PAGE4, PTP_TDR); /* ns[15:0] */
val[1] = ext_read(phydev, PAGE4, PTP_TDR); /* ns[31:16] */
val[2] = ext_read(phydev, PAGE4, PTP_TDR); /* sec[15:0] */
val[3] = ext_read(phydev, PAGE4, PTP_TDR); /* sec[31:16] */