On Tue, Mar 13, 2018 at 12:48 PM, Bryan O'Donoghue <bryan.odonog...@linaro.org> wrote: > The tester registers provide a unique chip-level identifier which > get_board_serial() returns in a "struct tag_serialnr". > > This patch documents the properties of the registers; in summary. > > 31:0 OCOTP_TESTER0 (most significant) > - FSL-wide unique, encoded LOT ID STD II/SJC CHALLENGE/ Unique ID > > OCOTP_TESTER1 (least significant) > 31:24 > - The X-coordinate of the die location on the wafer/SJC CHALLENGE/ Unique > ID > 23:16 > - The Y-coordinate of the die location on the wafer/SJC CHALLENGE/ Unique > ID > 15:11 > - The wafer number of the wafer on which the device was fabricated/SJC > CHALLENGE/ Unique ID > 10:0 > - FSL-wide unique, encoded LOT ID STD II/SJC CHALLENGE/ Unique ID > > The 64 bits of data generate a unique serial number per-chip. > > Signed-off-by: Bryan O'Donoghue <bryan.odonog...@linaro.org> > Cc: Fabio Estevam <fabio.este...@nxp.com> > Cc: Peng Fan <peng....@nxp.com> > Cc: Stefano Babic <sba...@denx.de>
Reviewed-by: Fabio Estevam <fabio.este...@nxp.com> _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
