[PATCH] misc: Add RZG2L OTP support

[Tom Rini]

On Tue, Apr 14, 2026 at 11:14:21AM +0200, Mathieu Othacehe wrote:

> Add OTP support through the fuse command. Fusing is directly performed by
> U-Boot, which means that the trusted-firmware must allow the non-secure
> world to perform fusing operations.
> 
> Signed-off-by: Mathieu Othacehe <othacehe at gnu.org>
> ---
>  drivers/misc/Kconfig     |   7 ++
>  drivers/misc/Makefile    |   1 +
>  drivers/misc/rzg2l_otp.c | 222 +++++++++++++++++++++++++++++++++++++++
>  3 files changed, 230 insertions(+)
>  create mode 100644 drivers/misc/rzg2l_otp.c
> 
> diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
> index ea785793d18..16cb800a393 100644
> --- a/drivers/misc/Kconfig
> +++ b/drivers/misc/Kconfig
> @@ -132,6 +132,13 @@ config SPL_ROCKCHIP_IODOMAIN
>  	  for the IO-domain setting of the SoC to match the voltage supplied
>  	  by the regulators.
>  
> +config RZG2L_OTP
> +	bool "Renesas RZ/G2L OTP support"
> +	depends on MISC
> +	help
> +	  Enable support for the OTP controller on
> +	  Renesas RZ/G2L SoCs.
> +

If there's other feedback, this should have some dependency on CMD_FUSE
as well (since that's what makes use of the functionality) but indeed
it's very inconsistent currently, and the area in general could use some
modernization.

-- 
Tom
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