[PATCH v2 05/14] rockchip: rk3308: Enable random generator

[Kever Yang]

On 2024/4/9 02:14, Jonas Karlman wrote:
> The RK3308 SoC contain a crypto engine block that can generate random
> numbers.
>
> Add rng node to soc u-boot.dtsi and enable Kconfig options to take
> advantage of the random generator.
>
> Signed-off-by: Jonas Karlman <jonas at kwiboo.se>
Reviewed-by: Kever Yang <kever.yang at rock-chips.com>

Thanks,
- Kever
> ---
> v2: No change
> ---
>   arch/arm/dts/rk3308-u-boot.dtsi | 5 +++++
>   arch/arm/mach-rockchip/Kconfig  | 2 ++
>   2 files changed, 7 insertions(+)
>
> diff --git a/arch/arm/dts/rk3308-u-boot.dtsi b/arch/arm/dts/rk3308-u-boot.dtsi
> index 436f66d1b87d..fa31c838d34d 100644
> --- a/arch/arm/dts/rk3308-u-boot.dtsi
> +++ b/arch/arm/dts/rk3308-u-boot.dtsi
> @@ -26,6 +26,11 @@
>   			reg = <0x07 0x10>;
>   		};
>   	};
> +
> +	rng: rng at ff2f0000 {
> +		compatible = "rockchip,cryptov2-rng";
> +		reg = <0x0 0xff2f0000 0x0 0x4000>;
> +	};
>   };
>   
>   &cru {
> diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
> index 6e07a70bf4ae..fa5917236a43 100644
> --- a/arch/arm/mach-rockchip/Kconfig
> +++ b/arch/arm/mach-rockchip/Kconfig
> @@ -162,9 +162,11 @@ config ROCKCHIP_RK3308
>   	select SPL_LOAD_FIT
>   	imply ARMV8_CRYPTO
>   	imply ARMV8_SET_SMPEN
> +	imply DM_RNG
>   	imply LEGACY_IMAGE_FORMAT
>   	imply MISC
>   	imply MISC_INIT_R
> +	imply RNG_ROCKCHIP
>   	imply ROCKCHIP_COMMON_BOARD
>   	imply ROCKCHIP_OTP
>   	imply SPL_CLK