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| author | Ivan Zaentsev <ivan.zaentsev@wirenboard.ru> | 2020-11-16 19:58:26 +0300 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2020-11-30 17:31:29 +0800 |
| commit | 4ba79e25d7f1a7394021ba4c215a7ecdcc270fb6 (patch) | |
| tree | 7ceb9600023b8aac8e9b8c2ccaa7ba861fed3c55 /arch/arm/boot/dts/sun7i-a20-bananapi.dts | |
| parent | 53cc6bc69e536efe6c1cef98edfb7b3f0a14fabe (diff) | |
ARM: mxs: Add serial number support for i.MX23, i.MX28 SoCs
i.MX23 and i.MX28 SoCs unique identifiers are factory-programmed
in On-Chip OTP memory. i.MX28's 64-bit unique id is in
HW_OCOTP_OPS2:HW_OCOTP_OPS3 (see MCIMX28 Ref. Man., sec. 20.4.22-23).
i.MX23 provides 32-bit long unique id in HW_OCOTP_OPS3.
Though not clearly documented, there is a clue in sec. 35.9.3.
The unique id is reported in /sys/devices/soc0/serial_number
and in /proc/cpuinfo
Signed-off-by: Ivan Zaentsev <ivan.zaentsev@wirenboard.ru>
Suggested-by: Evgeny Boger <boger@wirenboard.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'arch/arm/boot/dts/sun7i-a20-bananapi.dts')
0 files changed, 0 insertions, 0 deletions