On Fri, May 03, 2024 at 09:10:50PM +0000, Lothar Rubusch wrote:
> Read out otp memory zone of this secure eeprom and rng chip. The chip
> has an otp zone and data zone, both still not accessed. The otp zone
> can be used to store persistently serial numbers or similar, if externally
> pre-configured. In any way the Atmel SHA204a needs to be preconfgured and
> fuse locked in order to be useful also for the already implemented RNG
> functionality. Placing data into the otp zone is optional. If empty, the
> chip returns 0xff on all field. The implementation passes the content to
> a new sysfs handle to userspace. If the chip is locked or not accessible
> no sysfs handle is set.
>
> Signed-off-by: Lothar Rubusch <l.rubusch@gmail.com>
> ---
> v1 -> v2
> - fix typo in commit title
> - drop patch: remove unused includes
>
> Lothar Rubusch (4):
> crypto: atmel-i2c - add missing arg description
> crypto: atmel-i2c - rename read function
> crypto: atmel-sha204a - add reading from otp zone
> crypto: atmel-sha204a - provide the otp content
>
> drivers/crypto/atmel-i2c.c | 30 +++++++++++++--
> drivers/crypto/atmel-i2c.h | 8 +++-
> drivers/crypto/atmel-sha204a.c | 68 ++++++++++++++++++++++++++++++++++
> 3 files changed, 102 insertions(+), 4 deletions(-)
>
> --
> 2.25.1
All applied. Thanks.
--
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
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