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53355bb86c
Adds random number generator driver using Arm SMCCC TRNG interface to get entropy bytes from secure monitor. The driver registers as an Arm SMCCC feature driver to allow PSCI driver to bind a device for when secure monitor exposes RNG support from Arm SMCCC TRNG interface. Cc: Sughosh Ganu <sughosh.ganu@linaro.org> Cc: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
77 lines
2.1 KiB
Text
77 lines
2.1 KiB
Text
config DM_RNG
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bool "Driver support for Random Number Generator devices"
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depends on DM
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help
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Enable driver model for random number generator(rng) devices.
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This interface is used to initialise the rng device and to
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read the random seed from the device.
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if DM_RNG
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config RNG_MESON
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bool "Amlogic Meson Random Number Generator support"
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depends on ARCH_MESON
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default y
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help
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Enable support for hardware random number generator
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of Amlogic Meson SoCs.
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config RNG_SANDBOX
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bool "Sandbox random number generator"
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depends on SANDBOX
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default y
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help
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Enable random number generator for sandbox. This is an
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emulation of a rng device.
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config RNG_MSM
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bool "Qualcomm SoCs Random Number Generator support"
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depends on DM_RNG
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help
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This driver provides support for the Random Number
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Generator hardware found on Qualcomm SoCs.
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config RNG_NPCM
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bool "Nuvoton NPCM SoCs Random Number Generator support"
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depends on DM_RNG
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help
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Enable random number generator on NPCM SoCs.
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This unit can provide 750 to 1000 random bits per second
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config RNG_OPTEE
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bool "OP-TEE based Random Number Generator support"
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depends on DM_RNG && OPTEE
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help
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This driver provides support for the OP-TEE based Random Number
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Generator on ARM SoCs where hardware entropy sources are not
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accessible to normal world but reserved and used by the OP-TEE
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to avoid the weakness of a software PRNG.
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config RNG_STM32MP1
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bool "Enable random number generator for STM32MP1"
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depends on ARCH_STM32MP
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help
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Enable STM32MP1 rng driver.
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config RNG_ROCKCHIP
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bool "Enable random number generator for rockchip crypto rng"
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depends on ARCH_ROCKCHIP && DM_RNG
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help
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Enable random number generator for rockchip.This driver is
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support rng module of crypto v1 and crypto v2.
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config RNG_IPROC200
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bool "Broadcom iProc RNG200 random number generator"
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depends on DM_RNG
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help
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Enable random number generator for RPI4.
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config RNG_SMCCC_TRNG
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bool "Arm SMCCC TRNG interface"
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depends on DM_RNG && ARM_PSCI_FW
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default y if ARM_SMCCC_FEATURES
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help
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Enable random number generator for platforms that support Arm
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SMCCC TRNG interface.
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endif
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