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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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![Russell King](/assets/img/avatar_default.png)
omap-rng also supports Marvell Armada 7k/8k SoCs, but no mention of this
is made in the help text, despite the dependency being added. Explicitly
mention these SoCs in the help description so people know that it covers
more than just TI SoCs.
Fixes: 383212425c
("hwrng: omap - Add device variant for SafeXcel IP-76 found in Armada 8K")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
441 lines
13 KiB
Text
441 lines
13 KiB
Text
#
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# Hardware Random Number Generator (RNG) configuration
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#
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menuconfig HW_RANDOM
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tristate "Hardware Random Number Generator Core support"
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default m
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---help---
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Hardware Random Number Generator Core infrastructure.
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To compile this driver as a module, choose M here: the
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module will be called rng-core. This provides a device
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that's usually called /dev/hwrng, and which exposes one
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of possibly several hardware random number generators.
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These hardware random number generators do not feed directly
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into the kernel's random number generator. That is usually
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handled by the "rngd" daemon. Documentation/hw_random.txt
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has more information.
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If unsure, say Y.
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if HW_RANDOM
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config HW_RANDOM_TIMERIOMEM
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tristate "Timer IOMEM HW Random Number Generator support"
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depends on HAS_IOMEM
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---help---
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This driver provides kernel-side support for a generic Random
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Number Generator used by reading a 'dumb' iomem address that
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is to be read no faster than, for example, once a second;
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the default FPGA bitstream on the TS-7800 has such functionality.
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To compile this driver as a module, choose M here: the
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module will be called timeriomem-rng.
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If unsure, say Y.
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config HW_RANDOM_INTEL
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tristate "Intel HW Random Number Generator support"
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depends on (X86 || IA64) && PCI
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on Intel i8xx-based motherboards.
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To compile this driver as a module, choose M here: the
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module will be called intel-rng.
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If unsure, say Y.
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config HW_RANDOM_AMD
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tristate "AMD HW Random Number Generator support"
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depends on (X86 || PPC_MAPLE) && PCI
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on AMD 76x-based motherboards.
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To compile this driver as a module, choose M here: the
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module will be called amd-rng.
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If unsure, say Y.
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config HW_RANDOM_ATMEL
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tristate "Atmel Random Number Generator support"
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depends on ARCH_AT91 && HAVE_CLK && OF
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on Atmel AT91 devices.
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To compile this driver as a module, choose M here: the
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module will be called atmel-rng.
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If unsure, say Y.
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config HW_RANDOM_BCM63XX
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tristate "Broadcom BCM63xx Random Number Generator support"
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depends on BCM63XX || BMIPS_GENERIC
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on the Broadcom BCM63xx SoCs.
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To compile this driver as a module, choose M here: the
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module will be called bcm63xx-rng
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If unusure, say Y.
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config HW_RANDOM_BCM2835
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tristate "Broadcom BCM2835 Random Number Generator support"
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depends on ARCH_BCM2835 || ARCH_BCM_NSP || ARCH_BCM_5301X
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on the Broadcom BCM2835 SoCs.
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To compile this driver as a module, choose M here: the
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module will be called bcm2835-rng
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If unsure, say Y.
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config HW_RANDOM_IPROC_RNG200
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tristate "Broadcom iProc RNG200 support"
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depends on ARCH_BCM_IPROC
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the RNG200
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hardware found on the Broadcom iProc SoCs.
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To compile this driver as a module, choose M here: the
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module will be called iproc-rng200
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If unsure, say Y.
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config HW_RANDOM_GEODE
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tristate "AMD Geode HW Random Number Generator support"
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depends on X86_32 && PCI
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on the AMD Geode LX.
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To compile this driver as a module, choose M here: the
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module will be called geode-rng.
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If unsure, say Y.
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config HW_RANDOM_N2RNG
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tristate "Niagara2 Random Number Generator support"
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depends on SPARC64
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on Niagara2 cpus.
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To compile this driver as a module, choose M here: the
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module will be called n2-rng.
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If unsure, say Y.
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config HW_RANDOM_VIA
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tristate "VIA HW Random Number Generator support"
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depends on X86
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on VIA based motherboards.
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To compile this driver as a module, choose M here: the
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module will be called via-rng.
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If unsure, say Y.
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config HW_RANDOM_IXP4XX
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tristate "Intel IXP4xx NPU HW Pseudo-Random Number Generator support"
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depends on ARCH_IXP4XX
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Pseudo-Random
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Number Generator hardware found on the Intel IXP45x/46x NPU.
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To compile this driver as a module, choose M here: the
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module will be called ixp4xx-rng.
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If unsure, say Y.
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config HW_RANDOM_OMAP
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tristate "OMAP Random Number Generator support"
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depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || ARCH_MVEBU
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on OMAP16xx, OMAP2/3/4/5, AM33xx/AM43xx
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multimedia processors, and Marvell Armada 7k/8k SoCs.
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To compile this driver as a module, choose M here: the
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module will be called omap-rng.
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If unsure, say Y.
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config HW_RANDOM_OMAP3_ROM
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tristate "OMAP3 ROM Random Number Generator support"
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depends on ARCH_OMAP3
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on OMAP34xx processors.
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To compile this driver as a module, choose M here: the
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module will be called omap3-rom-rng.
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If unsure, say Y.
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config HW_RANDOM_OCTEON
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tristate "Octeon Random Number Generator support"
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depends on CAVIUM_OCTEON_SOC
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on Octeon processors.
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To compile this driver as a module, choose M here: the
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module will be called octeon-rng.
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If unsure, say Y.
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config HW_RANDOM_PASEMI
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tristate "PA Semi HW Random Number Generator support"
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depends on PPC_PASEMI
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on PA Semi PWRficient SoCs.
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To compile this driver as a module, choose M here: the
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module will be called pasemi-rng.
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If unsure, say Y.
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config HW_RANDOM_VIRTIO
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tristate "VirtIO Random Number Generator support"
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depends on VIRTIO
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---help---
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This driver provides kernel-side support for the virtual Random Number
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Generator hardware.
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To compile this driver as a module, choose M here: the
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module will be called virtio-rng. If unsure, say N.
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config HW_RANDOM_TX4939
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tristate "TX4939 Random Number Generator support"
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depends on SOC_TX4939
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on TX4939 SoC.
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To compile this driver as a module, choose M here: the
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module will be called tx4939-rng.
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If unsure, say Y.
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config HW_RANDOM_MXC_RNGA
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tristate "Freescale i.MX RNGA Random Number Generator"
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depends on SOC_IMX31
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on Freescale i.MX processors.
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To compile this driver as a module, choose M here: the
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module will be called mxc-rnga.
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If unsure, say Y.
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config HW_RANDOM_NOMADIK
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tristate "ST-Ericsson Nomadik Random Number Generator support"
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depends on ARCH_NOMADIK
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on ST-Ericsson SoCs (8815 and 8500).
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To compile this driver as a module, choose M here: the
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module will be called nomadik-rng.
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If unsure, say Y.
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config HW_RANDOM_PSERIES
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tristate "pSeries HW Random Number Generator support"
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depends on PPC64 && IBMVIO
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on POWER7+ machines and above
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To compile this driver as a module, choose M here: the
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module will be called pseries-rng.
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If unsure, say Y.
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config HW_RANDOM_POWERNV
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tristate "PowerNV Random Number Generator support"
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depends on PPC_POWERNV
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default HW_RANDOM
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---help---
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This is the driver for Random Number Generator hardware found
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in POWER7+ and above machines for PowerNV platform.
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To compile this driver as a module, choose M here: the
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module will be called powernv-rng.
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If unsure, say Y.
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config HW_RANDOM_EXYNOS
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tristate "EXYNOS HW random number generator support"
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depends on ARCH_EXYNOS || COMPILE_TEST
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depends on HAS_IOMEM
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on EXYNOS SOCs.
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To compile this driver as a module, choose M here: the
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module will be called exynos-rng.
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If unsure, say Y.
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config HW_RANDOM_TPM
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tristate "TPM HW Random Number Generator support"
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depends on TCG_TPM
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator in the Trusted Platform Module
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To compile this driver as a module, choose M here: the
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module will be called tpm-rng.
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If unsure, say Y.
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config HW_RANDOM_HISI
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tristate "Hisilicon Random Number Generator support"
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depends on HW_RANDOM && ARCH_HISI
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on Hisilicon Hip04 and Hip05 SoC.
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To compile this driver as a module, choose M here: the
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module will be called hisi-rng.
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If unsure, say Y.
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config HW_RANDOM_MSM
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tristate "Qualcomm SoCs Random Number Generator support"
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depends on HW_RANDOM && ARCH_QCOM
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on Qualcomm SoCs.
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To compile this driver as a module, choose M here. the
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module will be called msm-rng.
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If unsure, say Y.
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config HW_RANDOM_ST
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tristate "ST Microelectronics HW Random Number Generator support"
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depends on HW_RANDOM && ARCH_STI
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on STi series of SoCs.
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To compile this driver as a module, choose M here: the
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module will be called st-rng.
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config HW_RANDOM_XGENE
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tristate "APM X-Gene True Random Number Generator (TRNG) support"
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depends on HW_RANDOM && ARCH_XGENE
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on APM X-Gene SoC.
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To compile this driver as a module, choose M here: the
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module will be called xgene_rng.
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If unsure, say Y.
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config HW_RANDOM_STM32
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tristate "STMicroelectronics STM32 random number generator"
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depends on HW_RANDOM && (ARCH_STM32 || COMPILE_TEST)
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depends on HAS_IOMEM
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help
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This driver provides kernel-side support for the Random Number
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Generator hardware found on STM32 microcontrollers.
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To compile this driver as a module, choose M here: the
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module will be called stm32-rng.
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If unsure, say N.
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config HW_RANDOM_PIC32
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tristate "Microchip PIC32 Random Number Generator support"
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depends on HW_RANDOM && MACH_PIC32
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default y
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on a PIC32.
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To compile this driver as a module, choose M here. the
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module will be called pic32-rng.
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If unsure, say Y.
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config HW_RANDOM_MESON
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tristate "Amlogic Meson Random Number Generator support"
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depends on HW_RANDOM
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depends on ARCH_MESON || COMPILE_TEST
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default y
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on Amlogic Meson SoCs.
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To compile this driver as a module, choose M here. the
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module will be called meson-rng.
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If unsure, say Y.
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config HW_RANDOM_CAVIUM
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tristate "Cavium ThunderX Random Number Generator support"
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depends on HW_RANDOM && PCI && (ARM64 || (COMPILE_TEST && 64BIT))
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on Cavium SoCs.
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To compile this driver as a module, choose M here: the
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module will be called cavium_rng.
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If unsure, say Y.
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endif # HW_RANDOM
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config UML_RANDOM
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depends on UML
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tristate "Hardware random number generator"
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help
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This option enables UML's "hardware" random number generator. It
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attaches itself to the host's /dev/random, supplying as much entropy
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as the host has, rather than the small amount the UML gets from its
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own drivers. It registers itself as a standard hardware random number
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generator, major 10, minor 183, and the canonical device name is
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/dev/hwrng.
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The way to make use of this is to install the rng-tools package
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(check your distro, or download from
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http://sourceforge.net/projects/gkernel/). rngd periodically reads
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/dev/hwrng and injects the entropy into /dev/random.
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