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cmd: mtd: OTP access support

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Add access to OTP region. It supports info, dump, write and lock
operations. Usage example:

'mtd otpread nand0 u 0 1024' - dump 1024 bytes of user area starting
 from offset 0 of device 'nand0'.

'mtd otpwrite nand0 10 11223344' - write binary data 0x11, 0x22, 0x33,
 0x44 to offset 10 to user area of device 'nand0'.

'mtd otplock nand0 0 1024' - lock 1024 bytes of user area starting
 from offset 0 of device 'nand0'.

'mtd otpinfo nand0 f' - show info about factory area of device 'nand0'.

Link: https://lore.kernel.org/all/20240326223919.3781-1-avkrasnov@salutedevices.com
Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
This commit is contained in:
Arseniy Krasnov
2024-03-27 01:39:19 +03:00
committed by Dario Binacchi
parent cd6d71a2e9
commit 248fc16055
2 changed files with 241 additions and 0 deletions
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7
cmd/Kconfig
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@@ -1361,6 +1361,13 @@ config CMD_MTD
help
MTD commands support.
config CMD_MTD_OTP
bool "mtd otp"
depends on CMD_MTD
select HEXDUMP
help
MTD commands for OTP access.
config CMD_MUX
bool "mux"
depends on MULTIPLEXER