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#
# Hardware Random Number Generator (RNG) configuration
#
config HW_RANDOM
tristate "Hardware Random Number Generator Core support"
default m
---help---
Hardware Random Number Generator Core infrastructure.
To compile this driver as a module, choose M here: the
module will be called rng-core. This provides a device
that's usually called /dev/hw_random, and which exposes one
of possibly several hardware random number generators.
These hardware random number generators do not feed directly
into the kernel's random number generator. That is usually
handled by the "rngd" daemon. Documentation/hw_random.txt
has more information.
If unsure, say Y.
config HW_RANDOM_TIMERIOMEM
tristate "Timer IOMEM HW Random Number Generator support"
depends on HW_RANDOM && HAS_IOMEM
---help---
This driver provides kernel-side support for a generic Random
Number Generator used by reading a 'dumb' iomem address that
is to be read no faster than, for example, once a second;
the default FPGA bitstream on the TS-7800 has such functionality.
To compile this driver as a module, choose M here: the
module will be called timeriomem-rng.
If unsure, say Y.
config HW_RANDOM_INTEL
tristate "Intel HW Random Number Generator support"
depends on HW_RANDOM && (X86 || IA64) && PCI
default HW_RANDOM
---help---
This driver provides kernel-side support for the Random Number
Generator hardware found on Intel i8xx-based motherboards.
To compile this driver as a module, choose M here: the
module will be called intel-rng.
If unsure, say Y.
config HW_RANDOM_AMD
tristate "AMD HW Random Number Generator support"
depends on HW_RANDOM && (X86 || PPC_MAPLE) && PCI
default HW_RANDOM
---help---
This driver provides kernel-side support for the Random Number
Generator hardware found on AMD 76x-based motherboards.
To compile this driver as a module, choose M here: the
module will be called amd-rng.
If unsure, say Y.
config HW_RANDOM_ATMEL
tristate "Atmel Random Number Generator support"
depends on HW_RANDOM && HAVE_CLK
default (HW_RANDOM && ARCH_AT91)
---help---
This driver provides kernel-side support for the Random Number
Generator hardware found on Atmel AT91 devices.
To compile this driver as a module, choose M here: the
module will be called atmel-rng.
If unsure, say Y.
config HW_RANDOM_GEODE
tristate "AMD Geode HW Random Number Generator support"
depends on HW_RANDOM && X86_32 && PCI
default HW_RANDOM
---help---
This driver provides kernel-side support for the Random Number
Generator hardware found on the AMD Geode LX.
To compile this driver as a module, choose M here: the
module will be called geode-rng.
If unsure, say Y.
config HW_RANDOM_N2RNG
tristate "Niagara2 Random Number Generator support"
depends on HW_RANDOM && SPARC64
default HW_RANDOM
---help---
This driver provides kernel-side support for the Random Number
Generator hardware found on Niagara2 cpus.
To compile this driver as a module, choose M here: the
module will be called n2-rng.
If unsure, say Y.
config HW_RANDOM_VIA
tristate "VIA HW Random Number Generator support"
depends on HW_RANDOM && X86
default HW_RANDOM
---help---
This driver provides kernel-side support for the Random Number
Generator hardware found on VIA based motherboards.
To compile this driver as a module, choose M here: the
module will be called via-rng.
If unsure, say Y.
config HW_RANDOM_IXP4XX
tristate "Intel IXP4xx NPU HW Random Number Generator support"
depends on HW_RANDOM && ARCH_IXP4XX
default HW_RANDOM
---help---
This driver provides kernel-side support for the Random
Number Generator hardware found on the Intel IXP4xx NPU.
To compile this driver as a module, choose M here: the
module will be called ixp4xx-rng.
If unsure, say Y.
config HW_RANDOM_OMAP
tristate "OMAP Random Number Generator support"
depends on HW_RANDOM && (ARCH_OMAP16XX || ARCH_OMAP2)
default HW_RANDOM
---help---
This driver provides kernel-side support for the Random Number
Generator hardware found on OMAP16xx and OMAP24xx multimedia
processors.
To compile this driver as a module, choose M here: the
module will be called omap-rng.
If unsure, say Y.
config HW_RANDOM_OCTEON
tristate "Octeon Random Number Generator support"
depends on HW_RANDOM && CPU_CAVIUM_OCTEON
default HW_RANDOM
---help---
This driver provides kernel-side support for the Random Number
Generator hardware found on Octeon processors.
To compile this driver as a module, choose M here: the
module will be called octeon-rng.
If unsure, say Y.
config HW_RANDOM_PASEMI
tristate "PA Semi HW Random Number Generator support"
depends on HW_RANDOM && PPC_PASEMI
default HW_RANDOM
---help---
This driver provides kernel-side support for the Random Number
Generator hardware found on PA Semi PWRficient SoCs.
To compile this driver as a module, choose M here: the
module will be called pasemi-rng.
If unsure, say Y.
config HW_RANDOM_VIRTIO
tristate "VirtIO Random Number Generator support"
depends on HW_RANDOM && VIRTIO
---help---
This driver provides kernel-side support for the virtual Random Number
Generator hardware.
To compile this driver as a module, choose M here: the
module will be called virtio-rng. If unsure, say N.
config HW_RANDOM_TX4939
tristate "TX4939 Random Number Generator support"
depends on HW_RANDOM && SOC_TX4939
default HW_RANDOM
---help---
This driver provides kernel-side support for the Random Number
Generator hardware found on TX4939 SoC.
To compile this driver as a module, choose M here: the
module will be called tx4939-rng.
If unsure, say Y.
config HW_RANDOM_MXC_RNGA
tristate "Freescale i.MX RNGA Random Number Generator"
depends on HW_RANDOM && ARCH_HAS_RNGA
---help---
This driver provides kernel-side support for the Random Number
Generator hardware found on Freescale i.MX processors.
To compile this driver as a module, choose M here: the
module will be called mxc-rnga.
If unsure, say Y.
config HW_RANDOM_NOMADIK
tristate "ST-Ericsson Nomadik Random Number Generator support"
depends on HW_RANDOM && PLAT_NOMADIK
---help---
This driver provides kernel-side support for the Random Number
Generator hardware found on ST-Ericsson SoCs (8815 and 8500).
To compile this driver as a module, choose M here: the
module will be called nomadik-rng.
If unsure, say Y.
config HW_RANDOM_PICOXCELL
tristate "Picochip picoXcell true random number generator support"
depends on HW_RANDOM && ARCH_PICOXCELL && PICOXCELL_PC3X3
---help---
This driver provides kernel-side support for the Random Number
Generator hardware found on Picochip PC3x3 and later devices.
To compile this driver as a module, choose M here: the
module will be called picoxcell-rng.
If unsure, say Y.
config HW_RANDOM_PPC4XX
tristate "PowerPC 4xx generic true random number generator support"
depends on HW_RANDOM && PPC && 4xx
---help---
This driver provides the kernel-side support for the TRNG hardware
found in the security function of some PowerPC 4xx SoCs.
To compile this driver as a module, choose M here: the
module will be called ppc4xx-rng.
If unsure, say N.
config UML_RANDOM
depends on UML
tristate "Hardware random number generator"
help
This option enables UML's "hardware" random number generator. It
attaches itself to the host's /dev/random, supplying as much entropy
as the host has, rather than the small amount the UML gets from its
own drivers. It registers itself as a standard hardware random number
generator, major 10, minor 183, and the canonical device name is
/dev/hwrng.
The way to make use of this is to install the rng-tools package
(check your distro, or download from
http://sourceforge.net/projects/gkernel/). rngd periodically reads
/dev/hwrng and injects the entropy into /dev/random.
config HW_RANDOM_PSERIES
tristate "pSeries HW Random Number Generator support"
depends on HW_RANDOM && PPC64 && IBMVIO
default HW_RANDOM
---help---
This driver provides kernel-side support for the Random Number
Generator hardware found on POWER7+ machines and above
To compile this driver as a module, choose M here: the
module will be called pseries-rng.
If unsure, say Y.
config HW_RANDOM_EXYNOS
tristate "EXYNOS HW random number generator support"
depends on HW_RANDOM && HAS_IOMEM && HAVE_CLK
---help---
This driver provides kernel-side support for the Random Number
Generator hardware found on EXYNOS SOCs.
To compile this driver as a module, choose M here: the
module will be called exynos-rng.
If unsure, say Y.
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