The RK35xx SoCs contain a crypto engine block that can generate random numbers.
Enable rng node in 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: Dragan Simic dsimic@manjaro.org --- v3: Collect r-b tag v2: No change --- arch/arm/dts/rk3566-anbernic-rgxx3-u-boot.dtsi | 6 ------ arch/arm/dts/rk356x-u-boot.dtsi | 5 +++++ arch/arm/dts/rk3588s-u-boot.dtsi | 1 - arch/arm/mach-rockchip/Kconfig | 4 ++++ configs/anbernic-rgxx3-rk3566_defconfig | 2 -- 5 files changed, 9 insertions(+), 9 deletions(-)
diff --git a/arch/arm/dts/rk3566-anbernic-rgxx3-u-boot.dtsi b/arch/arm/dts/rk3566-anbernic-rgxx3-u-boot.dtsi index 791f16b206f2..793ed4ae8ae0 100644 --- a/arch/arm/dts/rk3566-anbernic-rgxx3-u-boot.dtsi +++ b/arch/arm/dts/rk3566-anbernic-rgxx3-u-boot.dtsi @@ -6,12 +6,6 @@ chosen { u-boot,spl-boot-order = "same-as-spl", &sdmmc1, &sdmmc0; }; - - rng: rng@fe388000 { - compatible = "rockchip,cryptov2-rng"; - reg = <0x0 0xfe388000 0x0 0x2000>; - status = "okay"; - }; };
&dsi_dphy0 { diff --git a/arch/arm/dts/rk356x-u-boot.dtsi b/arch/arm/dts/rk356x-u-boot.dtsi index d347080577d9..05367216e118 100644 --- a/arch/arm/dts/rk356x-u-boot.dtsi +++ b/arch/arm/dts/rk356x-u-boot.dtsi @@ -21,6 +21,11 @@ bootph-all; };
+ rng: rng@fe388000 { + compatible = "rockchip,cryptov2-rng"; + reg = <0x0 0xfe388000 0x0 0x2000>; + }; + otp: nvmem@fe38c000 { compatible = "rockchip,rk3568-otp"; reg = <0x0 0xfe38c000 0x0 0x4000>; diff --git a/arch/arm/dts/rk3588s-u-boot.dtsi b/arch/arm/dts/rk3588s-u-boot.dtsi index ac67c777adea..233eb79d9ba2 100644 --- a/arch/arm/dts/rk3588s-u-boot.dtsi +++ b/arch/arm/dts/rk3588s-u-boot.dtsi @@ -91,7 +91,6 @@ rng: rng@fe378000 { compatible = "rockchip,trngv1"; reg = <0x0 0xfe378000 0x0 0x200>; - status = "disabled"; };
usbdp_phy0: phy@fed80000 { diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig index 1cc9f7c4bb50..7b54a6f7dddc 100644 --- a/arch/arm/mach-rockchip/Kconfig +++ b/arch/arm/mach-rockchip/Kconfig @@ -306,9 +306,11 @@ config ROCKCHIP_RK3568 select BOARD_LATE_INIT select DM_REGULATOR_FIXED select DM_RESET + imply DM_RNG imply MISC_INIT_R imply MMC_HS200_SUPPORT if MMC_SDHCI_ROCKCHIP imply OF_LIBFDT_OVERLAY + imply RNG_ROCKCHIP imply ROCKCHIP_COMMON_BOARD imply ROCKCHIP_OTP imply SPL_ATF_NO_PLATFORM_PARAM if SPL_ATF @@ -335,9 +337,11 @@ config ROCKCHIP_RK3588 select DM_RESET imply BOOTSTD_FULL imply CLK_SCMI + imply DM_RNG imply MISC_INIT_R imply MMC_HS200_SUPPORT if MMC_SDHCI_ROCKCHIP imply OF_LIBFDT_OVERLAY + imply RNG_ROCKCHIP imply ROCKCHIP_COMMON_BOARD imply ROCKCHIP_OTP imply SCMI_FIRMWARE diff --git a/configs/anbernic-rgxx3-rk3566_defconfig b/configs/anbernic-rgxx3-rk3566_defconfig index 24b050c59b53..110237e798f9 100644 --- a/configs/anbernic-rgxx3-rk3566_defconfig +++ b/configs/anbernic-rgxx3-rk3566_defconfig @@ -68,8 +68,6 @@ CONFIG_REGULATOR_RK8XX=y CONFIG_PWM_ROCKCHIP=y CONFIG_SPL_RAM=y # CONFIG_RAM_ROCKCHIP_DEBUG is not set -CONFIG_DM_RNG=y -CONFIG_RNG_ROCKCHIP=y # CONFIG_RNG_SMCCC_TRNG is not set CONFIG_BAUDRATE=1500000 CONFIG_DEBUG_UART_SHIFT=2