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Bryan O'Donoghue 1ab1ffded4 imx: mx7: Add comment to describe OTP TESTER registers 
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.odonoghue@linaro.org>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2018-04-15 11:44:13 +02:00
..
arc fdt: Implement weak arch_fixup_fdt() 2018-02-18 12:53:38 -07:00
arm imx: mx7: Add comment to describe OTP TESTER registers 2018-04-15 11:44:13 +02:00
m68k Convert CONFIG_SYS_BOOT_GET_{CMDLINE, KBD} to Kconfig 2018-01-30 12:52:57 -05:00
microblaze fdt: Implement weak arch_fixup_fdt() 2018-02-18 12:53:38 -07:00
mips fdt: Implement weak arch_fixup_fdt() 2018-02-18 12:53:38 -07:00
nds32 fdt: Implement weak arch_fixup_fdt() 2018-02-18 12:53:38 -07:00
nios2 nios2: 10m50: Add CPU pre-relocation in device tree 2017-11-17 10:51:24 -05:00
powerpc libfdt: move headers to <linux/libfdt.h> and <linux/libfdt_env.h> 2018-03-05 10:16:28 -05:00
riscv riscv: Add Kconfig to support RISC-V 2018-01-12 08:05:12 -05:00
sandbox libfdt: move headers to <linux/libfdt.h> and <linux/libfdt_env.h> 2018-03-05 10:16:28 -05:00
sh sh: Do not provide strncmp 2018-02-23 00:06:05 +01:00
x86 libfdt: move headers to <linux/libfdt.h> and <linux/libfdt_env.h> 2018-03-05 10:16:28 -05:00
xtensa xtensa: clean up CONFIG_SYS_TEXT_ADDR 2018-02-23 10:21:41 -05:00
.gitignore
Kconfig Move most CONFIG_HAVE_BLOCK_DEVICE to Kconfig 2018-02-08 19:09:03 -05:00