rockchip: rk3308: Enable random generator
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@kwiboo.se>
Reviewed-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/dts/rk3308-u-boot.dtsi b/arch/arm/dts/rk3308-u-boot.dtsi
index 436f66d..fa31c83 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@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 2707d3f..c17dbb6 100644
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -162,9 +162,11 @@
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