[PATCH RFC V3 2/3] mxs: add driver for ocotp in i.MX23 and i.MX28
Arnd Bergmann
arnd at arndb.de
Mon Oct 20 07:44:03 PDT 2014
On Saturday 18 October 2014 10:32:51 Stefan Wahren wrote:
> This patch brings readonly support for the On Chip OTP cells in the i.MX23
> and i.MX28 processor. The driver uses files (one for each cell) in sysfs
> as interface.
>
> Signed-off-by: Stefan Wahren <stefan.wahren at i2se.com>
> ---
> drivers/misc/Kconfig | 13 ++
> drivers/misc/Makefile | 1 +
> drivers/misc/fsl_ocotp.c | 332 ++++++++++++++++++++++++++++++++++++++++++++++
> 3 files changed, 346 insertions(+)
> create mode 100644 drivers/misc/fsl_ocotp.c
>
> diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
> index b841180..7455efa 100644
> --- a/drivers/misc/Kconfig
> +++ b/drivers/misc/Kconfig
> @@ -515,6 +515,19 @@ config VEXPRESS_SYSCFG
> bus. System Configuration interface is one of the possible means
> of generating transactions on this bus.
>
> +config FSL_OCOTP
> + tristate "Freescale MXS On-Chip OTP Memory Support"
> + depends on ARCH_MXS && SYSFS
> + help
> + If you say Y here, you will get support for a readonly
> + SysFS interface for the One Time Programmable memory pages that
> + are stored on the Freescale i.MX23/i.MX28 processor.
> +
> + To compile this driver as a module, choose M here: the module
> + will be called fsl_ocotp.
> +
> + If unsure, it is safe to say N.
>
I think this needs to be an MTD driver, not a "misc" driver, and it
should use the proper MTD interfaces instead of introducing an
incompatible set of interfaces.
Arnd
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