[PATCH 1/2] rng: rockchip_rng: Add compatible for RK3568

[Kever Yang]

Hi Jonas,

     Please split the change to separate patches, the driver change and 
the dts change should not submit in one change.


Thanks,

- Kever

On 2025/3/31 05:40, Jonas Karlman wrote:
> Linux commit afeccc408496 ("arm64: dts: rockchip: add DT entry for RNG
> to RK356x") merged for v6.12-rc1 add a proper rng node to the SoC DT.
> The compatible used differs compared to what U-Boot is currently using.
>
> Add support for the rk3568-rng used in upstream Linux. Support for the
> cryptov2-rng compatible is still kept because PX30/RK3326 and RK3308 are
> still using it.
>
> Signed-off-by: Jonas Karlman <jonas at kwiboo.se>
> ---
>   arch/arm/dts/rk356x-u-boot.dtsi | 9 ++++-----
>   drivers/rng/rockchip_rng.c      | 4 ++++
>   2 files changed, 8 insertions(+), 5 deletions(-)
>
> diff --git a/arch/arm/dts/rk356x-u-boot.dtsi b/arch/arm/dts/rk356x-u-boot.dtsi
> index 24a976cf7e21..871869739536 100644
> --- a/arch/arm/dts/rk356x-u-boot.dtsi
> +++ b/arch/arm/dts/rk356x-u-boot.dtsi
> @@ -21,11 +21,6 @@
>   		bootph-all;
>   	};
>   
> -	rng: rng at fe388000 {
> -		compatible = "rockchip,cryptov2-rng";
> -		reg = <0x0 0xfe388000 0x0 0x2000>;
> -	};
> -
>   	otp: nvmem at fe38c000 {
>   		compatible = "rockchip,rk3568-otp";
>   		reg = <0x0 0xfe38c000 0x0 0x4000>;
> @@ -121,6 +116,10 @@
>   	bootph-all;
>   };
>   
> +&rng {
> +	status = "okay";
> +};
> +
>   &sdhci {
>   	bootph-pre-ram;
>   	bootph-some-ram;
> diff --git a/drivers/rng/rockchip_rng.c b/drivers/rng/rockchip_rng.c
> index 2426648fbd57..f673e2657c94 100644
> --- a/drivers/rng/rockchip_rng.c
> +++ b/drivers/rng/rockchip_rng.c
> @@ -312,6 +312,10 @@ static const struct udevice_id rockchip_rng_match[] = {
>   		.compatible = "rockchip,rk3399-crypto",
>   		.data = (ulong)&rk_cryptov1_soc_data,
>   	},
> +	{
> +		.compatible = "rockchip,rk3568-rng",
> +		.data = (ulong)&rk_cryptov2_soc_data,
> +	},
>   	{
>   		.compatible = "rockchip,cryptov2-rng",
>   		.data = (ulong)&rk_cryptov2_soc_data,