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

[Quentin Schulz]

Hi Jonas,

On 4/8/24 20:14, 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>
> ---
> 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>;

Downstream says something different:

https://github.com/rockchip-linux/kernel/blob/develop-5.10/arch/arm64/boot/dts/rockchip/rk3308.dtsi#L1007-L1020

I couldn't quickly find the TRM for the RK3308 so cannot check myself :/

Also seems to be missing clocks and resets?

Cheers,
Quentin