[deliverable/linux.git] / drivers / char / hw_random / Kconfig

#
# Hardware Random Number Generator (RNG) configuration
#

menuconfig 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.

if HW_RANDOM

config HW_RANDOM_TIMERIOMEM
	tristate "Timer IOMEM HW Random Number Generator support"
	depends on 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 (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 (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 ARCH_AT91 && HAVE_CLK
	default HW_RANDOM
	---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_BCM63XX
	tristate "Broadcom BCM63xx Random Number Generator support"
	depends on BCM63XX
	default HW_RANDOM
	---help---
	  This driver provides kernel-side support for the Random Number
	  Generator hardware found on the Broadcom BCM63xx SoCs.

	  To compile this driver as a module, choose M here: the
	  module will be called bcm63xx-rng

	  If unusure, say Y.

config HW_RANDOM_BCM2835
	tristate "Broadcom BCM2835 Random Number Generator support"
	depends on ARCH_BCM2835
	default HW_RANDOM
	---help---
	  This driver provides kernel-side support for the Random Number
	  Generator hardware found on the Broadcom BCM2835 SoCs.

	  To compile this driver as a module, choose M here: the
	  module will be called bcm2835-rng

	  If unsure, say Y.

config HW_RANDOM_GEODE
	tristate "AMD Geode HW Random Number Generator support"
	depends on 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 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 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 Pseudo-Random Number Generator support"
	depends on ARCH_IXP4XX
	default HW_RANDOM
	---help---
	  This driver provides kernel-side support for the Pseudo-Random
	  Number Generator hardware found on the Intel IXP45x/46x 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 ARCH_OMAP16XX || ARCH_OMAP2PLUS
	default HW_RANDOM
 	---help---
 	  This driver provides kernel-side support for the Random Number
	  Generator hardware found on OMAP16xx, OMAP2/3/4/5 and AM33xx/AM43xx
	  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_OMAP3_ROM
	tristate "OMAP3 ROM Random Number Generator support"
	depends on ARCH_OMAP3
	default HW_RANDOM
	---help---
	  This driver provides kernel-side support for the Random Number
	  Generator hardware found on OMAP34xx processors.

	  To compile this driver as a module, choose M here: the
	  module will be called omap3-rom-rng.

	  If unsure, say Y.

config HW_RANDOM_OCTEON
	tristate "Octeon Random Number Generator support"
	depends on CAVIUM_OCTEON_SOC
	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 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 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 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 ARCH_HAS_RNGA
	default HW_RANDOM
	---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 ARCH_NOMADIK
	default HW_RANDOM
	---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_PPC4XX
	tristate "PowerPC 4xx generic true random number generator support"
	depends on PPC && 4xx
	default HW_RANDOM
	---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 HW_RANDOM_PSERIES
	tristate "pSeries HW Random Number Generator support"
	depends on 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_POWERNV
	tristate "PowerNV Random Number Generator support"
	depends on PPC_POWERNV
	default HW_RANDOM
	---help---
	  This is the driver for Random Number Generator hardware found
	  in POWER7+ and above machines for PowerNV platform.

	  To compile this driver as a module, choose M here: the
	  module will be called powernv-rng.

	  If unsure, say Y.

config HW_RANDOM_EXYNOS
	tristate "EXYNOS HW random number generator support"
	depends on ARCH_EXYNOS
	default HW_RANDOM
	---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.

config HW_RANDOM_TPM
	tristate "TPM HW Random Number Generator support"
	depends on TCG_TPM
	default HW_RANDOM
	---help---
	  This driver provides kernel-side support for the Random Number
	  Generator in the Trusted Platform Module

	  To compile this driver as a module, choose M here: the
	  module will be called tpm-rng.

	  If unsure, say Y.

config HW_RANDOM_MSM
	tristate "Qualcomm SoCs Random Number Generator support"
	depends on HW_RANDOM && ARCH_QCOM
	default HW_RANDOM
	---help---
	  This driver provides kernel-side support for the Random Number
	  Generator hardware found on Qualcomm SoCs.

	  To compile this driver as a module, choose M here. the
	  module will be called msm-rng.

	  If unsure, say Y.

config HW_RANDOM_XGENE
	tristate "APM X-Gene True Random Number Generator (TRNG) support"
	depends on HW_RANDOM && ARCH_XGENE
	default HW_RANDOM
	---help---
	  This driver provides kernel-side support for the Random Number
	  Generator hardware found on APM X-Gene SoC.

	  To compile this driver as a module, choose M here: the
	  module will be called xgene_rng.

	  If unsure, say Y.

endif # HW_RANDOM

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.
Commit	Line	Data
844dd05f MB	1	#
	2	# Hardware Random Number Generator (RNG) configuration
	3	#
	4
02001618	5	menuconfig HW_RANDOM
fed806f4 JB	6	tristate "Hardware Random Number Generator Core support"
fed806f4 JB	7	default m
844dd05f MB	8	---help---
	9	Hardware Random Number Generator Core infrastructure.
	10
fed806f4	11	To compile this driver as a module, choose M here: the
537878d2 DB	12	module will be called rng-core. This provides a device
	13	that's usually called /dev/hw_random, and which exposes one
	14	of possibly several hardware random number generators.
	15
	16	These hardware random number generators do not feed directly
	17	into the kernel's random number generator. That is usually
	18	handled by the "rngd" daemon. Documentation/hw_random.txt
	19	has more information.
fed806f4	20
844dd05f	21	If unsure, say Y.
ca644bd5	22
02001618 JD	23	if HW_RANDOM
02001618 JD	24
9c3c133b AC	25	config HW_RANDOM_TIMERIOMEM
9c3c133b AC	26	tristate "Timer IOMEM HW Random Number Generator support"
02001618	27	depends on HAS_IOMEM
9c3c133b AC	28	---help---
	29	This driver provides kernel-side support for a generic Random
	30	Number Generator used by reading a 'dumb' iomem address that
	31	is to be read no faster than, for example, once a second;
	32	the default FPGA bitstream on the TS-7800 has such functionality.
	33
	34	To compile this driver as a module, choose M here: the
	35	module will be called timeriomem-rng.
	36
	37	If unsure, say Y.
	38
ca644bd5 MB	39	config HW_RANDOM_INTEL
ca644bd5 MB	40	tristate "Intel HW Random Number Generator support"
02001618	41	depends on (X86 \|\| IA64) && PCI
fed806f4	42	default HW_RANDOM
ca644bd5 MB	43	---help---
	44	This driver provides kernel-side support for the Random Number
	45	Generator hardware found on Intel i8xx-based motherboards.
	46
	47	To compile this driver as a module, choose M here: the
	48	module will be called intel-rng.
	49
	50	If unsure, say Y.
96d63c02 MB	51
	52	config HW_RANDOM_AMD
	53	tristate "AMD HW Random Number Generator support"
02001618	54	depends on (X86 \|\| PPC_MAPLE) && PCI
fed806f4	55	default HW_RANDOM
96d63c02 MB	56	---help---
	57	This driver provides kernel-side support for the Random Number
	58	Generator hardware found on AMD 76x-based motherboards.
	59
	60	To compile this driver as a module, choose M here: the
	61	module will be called amd-rng.
	62
	63	If unsure, say Y.
ef5d8627	64
677d3e2f PK	65	config HW_RANDOM_ATMEL
677d3e2f PK	66	tristate "Atmel Random Number Generator support"
2d9cab51 JD	67	depends on ARCH_AT91 && HAVE_CLK
2d9cab51 JD	68	default HW_RANDOM
677d3e2f PK	69	---help---
	70	This driver provides kernel-side support for the Random Number
	71	Generator hardware found on Atmel AT91 devices.
	72
	73	To compile this driver as a module, choose M here: the
	74	module will be called atmel-rng.
	75
	76	If unsure, say Y.
	77
553072b2 FF	78	config HW_RANDOM_BCM63XX
553072b2 FF	79	tristate "Broadcom BCM63xx Random Number Generator support"
02001618	80	depends on BCM63XX
553072b2 FF	81	default HW_RANDOM
	82	---help---
	83	This driver provides kernel-side support for the Random Number
	84	Generator hardware found on the Broadcom BCM63xx SoCs.
	85
	86	To compile this driver as a module, choose M here: the
	87	module will be called bcm63xx-rng
	88
	89	If unusure, say Y.
	90
8c4196a2 LR	91	config HW_RANDOM_BCM2835
8c4196a2 LR	92	tristate "Broadcom BCM2835 Random Number Generator support"
02001618	93	depends on ARCH_BCM2835
8c4196a2 LR	94	default HW_RANDOM
	95	---help---
	96	This driver provides kernel-side support for the Random Number
	97	Generator hardware found on the Broadcom BCM2835 SoCs.
	98
	99	To compile this driver as a module, choose M here: the
	100	module will be called bcm2835-rng
	101
	102	If unsure, say Y.
553072b2	103
ef5d8627 MB	104	config HW_RANDOM_GEODE
ef5d8627 MB	105	tristate "AMD Geode HW Random Number Generator support"
02001618	106	depends on X86_32 && PCI
fed806f4	107	default HW_RANDOM
ef5d8627 MB	108	---help---
	109	This driver provides kernel-side support for the Random Number
	110	Generator hardware found on the AMD Geode LX.
	111
	112	To compile this driver as a module, choose M here: the
	113	module will be called geode-rng.
	114
	115	If unsure, say Y.
13523363	116
ce087150 DM	117	config HW_RANDOM_N2RNG
ce087150 DM	118	tristate "Niagara2 Random Number Generator support"
02001618	119	depends on SPARC64
ce087150 DM	120	default HW_RANDOM
	121	---help---
	122	This driver provides kernel-side support for the Random Number
	123	Generator hardware found on Niagara2 cpus.
	124
	125	To compile this driver as a module, choose M here: the
	126	module will be called n2-rng.
	127
	128	If unsure, say Y.
	129
13523363 MB	130	config HW_RANDOM_VIA
13523363 MB	131	tristate "VIA HW Random Number Generator support"
02001618	132	depends on X86
fed806f4	133	default HW_RANDOM
13523363 MB	134	---help---
	135	This driver provides kernel-side support for the Random Number
	136	Generator hardware found on VIA based motherboards.
	137
	138	To compile this driver as a module, choose M here: the
	139	module will be called via-rng.
	140
	141	If unsure, say Y.
d7174bcb MB	142
d7174bcb MB	143	config HW_RANDOM_IXP4XX
553da857	144	tristate "Intel IXP4xx NPU HW Pseudo-Random Number Generator support"
02001618	145	depends on ARCH_IXP4XX
fed806f4	146	default HW_RANDOM
d7174bcb	147	---help---
553da857 KH	148	This driver provides kernel-side support for the Pseudo-Random
553da857 KH	149	Number Generator hardware found on the Intel IXP45x/46x NPU.
d7174bcb MB	150
	151	To compile this driver as a module, choose M here: the
	152	module will be called ixp4xx-rng.
	153
	154	If unsure, say Y.
ebc915ad MB	155
	156	config HW_RANDOM_OMAP
	157	tristate "OMAP Random Number Generator support"
02001618	158	depends on ARCH_OMAP16XX \|\| ARCH_OMAP2PLUS
fed806f4	159	default HW_RANDOM
ebc915ad MB	160	---help---
ebc915ad MB	161	This driver provides kernel-side support for the Random Number
e83872c9 LV	162	Generator hardware found on OMAP16xx, OMAP2/3/4/5 and AM33xx/AM43xx
e83872c9 LV	163	multimedia processors.
ebc915ad MB	164
	165	To compile this driver as a module, choose M here: the
	166	module will be called omap-rng.
	167
	168	If unsure, say Y.
b8cb3448	169
1c6b7c21 PR	170	config HW_RANDOM_OMAP3_ROM
1c6b7c21 PR	171	tristate "OMAP3 ROM Random Number Generator support"
02001618	172	depends on ARCH_OMAP3
1c6b7c21 PR	173	default HW_RANDOM
	174	---help---
	175	This driver provides kernel-side support for the Random Number
	176	Generator hardware found on OMAP34xx processors.
	177
	178	To compile this driver as a module, choose M here: the
	179	module will be called omap3-rom-rng.
	180
	181	If unsure, say Y.
	182
f7557dc8 DD	183	config HW_RANDOM_OCTEON
f7557dc8 DD	184	tristate "Octeon Random Number Generator support"
02001618	185	depends on CAVIUM_OCTEON_SOC
f7557dc8 DD	186	default HW_RANDOM
	187	---help---
	188	This driver provides kernel-side support for the Random Number
	189	Generator hardware found on Octeon processors.
	190
	191	To compile this driver as a module, choose M here: the
	192	module will be called octeon-rng.
	193
	194	If unsure, say Y.
	195
b8cb3448 OJ	196	config HW_RANDOM_PASEMI
b8cb3448 OJ	197	tristate "PA Semi HW Random Number Generator support"
02001618	198	depends on PPC_PASEMI
b8cb3448 OJ	199	default HW_RANDOM
	200	---help---
	201	This driver provides kernel-side support for the Random Number
0d08a847	202	Generator hardware found on PA Semi PWRficient SoCs.
b8cb3448 OJ	203
	204	To compile this driver as a module, choose M here: the
	205	module will be called pasemi-rng.
	206
	207	If unsure, say Y.
	208
f7f510ec RR	209	config HW_RANDOM_VIRTIO
f7f510ec RR	210	tristate "VirtIO Random Number Generator support"
02001618	211	depends on VIRTIO
f7f510ec RR	212	---help---
	213	This driver provides kernel-side support for the virtual Random Number
	214	Generator hardware.
	215
	216	To compile this driver as a module, choose M here: the
	217	module will be called virtio-rng. If unsure, say N.
45001e92	218
049a947c AN	219	config HW_RANDOM_TX4939
049a947c AN	220	tristate "TX4939 Random Number Generator support"
02001618	221	depends on SOC_TX4939
049a947c AN	222	default HW_RANDOM
	223	---help---
	224	This driver provides kernel-side support for the Random Number
	225	Generator hardware found on TX4939 SoC.
	226
	227	To compile this driver as a module, choose M here: the
	228	module will be called tx4939-rng.
	229
	230	If unsure, say Y.
	231
45001e92 ACA	232	config HW_RANDOM_MXC_RNGA
45001e92 ACA	233	tristate "Freescale i.MX RNGA Random Number Generator"
02001618	234	depends on ARCH_HAS_RNGA
2d9cab51	235	default HW_RANDOM
45001e92 ACA	236	---help---
	237	This driver provides kernel-side support for the Random Number
	238	Generator hardware found on Freescale i.MX processors.
	239
	240	To compile this driver as a module, choose M here: the
	241	module will be called mxc-rnga.
	242
	243	If unsure, say Y.
bc85b25e AR	244
	245	config HW_RANDOM_NOMADIK
	246	tristate "ST-Ericsson Nomadik Random Number Generator support"
02001618	247	depends on ARCH_NOMADIK
2d9cab51	248	default HW_RANDOM
bc85b25e AR	249	---help---
	250	This driver provides kernel-side support for the Random Number
	251	Generator hardware found on ST-Ericsson SoCs (8815 and 8500).
	252
	253	To compile this driver as a module, choose M here: the
	254	module will be called nomadik-rng.
	255
	256	If unsure, say Y.
5efb94ee	257
52527cf3 JB	258	config HW_RANDOM_PPC4XX
52527cf3 JB	259	tristate "PowerPC 4xx generic true random number generator support"
02001618	260	depends on PPC && 4xx
2d9cab51	261	default HW_RANDOM
52527cf3 JB	262	---help---
	263	This driver provides the kernel-side support for the TRNG hardware
	264	found in the security function of some PowerPC 4xx SoCs.
	265
	266	To compile this driver as a module, choose M here: the
	267	module will be called ppc4xx-rng.
	268
	269	If unsure, say N.
d805a786	270
649e9ea0 KY	271	config HW_RANDOM_PSERIES
649e9ea0 KY	272	tristate "pSeries HW Random Number Generator support"
02001618	273	depends on PPC64 && IBMVIO
649e9ea0 KY	274	default HW_RANDOM
	275	---help---
	276	This driver provides kernel-side support for the Random Number
	277	Generator hardware found on POWER7+ machines and above
	278
	279	To compile this driver as a module, choose M here: the
	280	module will be called pseries-rng.
	281
	282	If unsure, say Y.
b329669e	283
66548e40 ME	284	config HW_RANDOM_POWERNV
66548e40 ME	285	tristate "PowerNV Random Number Generator support"
02001618	286	depends on PPC_POWERNV
66548e40 ME	287	default HW_RANDOM
	288	---help---
	289	This is the driver for Random Number Generator hardware found
	290	in POWER7+ and above machines for PowerNV platform.
	291
	292	To compile this driver as a module, choose M here: the
	293	module will be called powernv-rng.
	294
	295	If unsure, say Y.
	296
b329669e JL	297	config HW_RANDOM_EXYNOS
b329669e JL	298	tristate "EXYNOS HW random number generator support"
2d9cab51 JD	299	depends on ARCH_EXYNOS
2d9cab51 JD	300	default HW_RANDOM
b329669e JL	301	---help---
	302	This driver provides kernel-side support for the Random Number
	303	Generator hardware found on EXYNOS SOCs.
	304
	305	To compile this driver as a module, choose M here: the
	306	module will be called exynos-rng.
	307
	308	If unsure, say Y.
578b016f KY	309
	310	config HW_RANDOM_TPM
	311	tristate "TPM HW Random Number Generator support"
02001618	312	depends on TCG_TPM
578b016f KY	313	default HW_RANDOM
	314	---help---
	315	This driver provides kernel-side support for the Random Number
	316	Generator in the Trusted Platform Module
	317
	318	To compile this driver as a module, choose M here: the
	319	module will be called tpm-rng.
	320
	321	If unsure, say Y.
0d289788 SV	322
0d289788 SV	323	config HW_RANDOM_MSM
2257ffbc KG	324	tristate "Qualcomm SoCs Random Number Generator support"
2257ffbc KG	325	depends on HW_RANDOM && ARCH_QCOM
2d9cab51	326	default HW_RANDOM
0d289788 SV	327	---help---
0d289788 SV	328	This driver provides kernel-side support for the Random Number
2257ffbc	329	Generator hardware found on Qualcomm SoCs.
0d289788 SV	330
	331	To compile this driver as a module, choose M here. the
	332	module will be called msm-rng.
	333
	334	If unsure, say Y.
dc64ef00	335
a91ae4eb FK	336	config HW_RANDOM_XGENE
	337	tristate "APM X-Gene True Random Number Generator (TRNG) support"
	338	depends on HW_RANDOM && ARCH_XGENE
	339	default HW_RANDOM
	340	---help---
	341	This driver provides kernel-side support for the Random Number
	342	Generator hardware found on APM X-Gene SoC.
	343
	344	To compile this driver as a module, choose M here: the
	345	module will be called xgene_rng.
	346
	347	If unsure, say Y.
	348
02001618 JD	349	endif # HW_RANDOM
02001618 JD	350
dc64ef00 JD	351	config UML_RANDOM
	352	depends on UML
	353	tristate "Hardware random number generator"
	354	help
	355	This option enables UML's "hardware" random number generator. It
	356	attaches itself to the host's /dev/random, supplying as much entropy
	357	as the host has, rather than the small amount the UML gets from its
	358	own drivers. It registers itself as a standard hardware random number
	359	generator, major 10, minor 183, and the canonical device name is
	360	/dev/hwrng.
	361	The way to make use of this is to install the rng-tools package
	362	(check your distro, or download from
	363	http://sourceforge.net/projects/gkernel/). rngd periodically reads
	364	/dev/hwrng and injects the entropy into /dev/random.