[mirror_ubuntu-eoan-kernel.git] / drivers / char / hw_random / Kconfig

#
# 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_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.
Commit	Line	Data
844dd05f MB	1	#
	2	# Hardware Random Number Generator (RNG) configuration
	3	#
	4
	5	config 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
9c3c133b AC	23	config HW_RANDOM_TIMERIOMEM
9c3c133b AC	24	tristate "Timer IOMEM HW Random Number Generator support"
e88cd6ff	25	depends on HW_RANDOM && HAS_IOMEM
9c3c133b AC	26	---help---
	27	This driver provides kernel-side support for a generic Random
	28	Number Generator used by reading a 'dumb' iomem address that
	29	is to be read no faster than, for example, once a second;
	30	the default FPGA bitstream on the TS-7800 has such functionality.
	31
	32	To compile this driver as a module, choose M here: the
	33	module will be called timeriomem-rng.
	34
	35	If unsure, say Y.
	36
ca644bd5 MB	37	config HW_RANDOM_INTEL
	38	tristate "Intel HW Random Number Generator support"
	39	depends on HW_RANDOM && (X86 \|\| IA64) && PCI
fed806f4	40	default HW_RANDOM
ca644bd5 MB	41	---help---
	42	This driver provides kernel-side support for the Random Number
	43	Generator hardware found on Intel i8xx-based motherboards.
	44
	45	To compile this driver as a module, choose M here: the
	46	module will be called intel-rng.
	47
	48	If unsure, say Y.
96d63c02 MB	49
	50	config HW_RANDOM_AMD
	51	tristate "AMD HW Random Number Generator support"
3023b5b6	52	depends on HW_RANDOM && (X86 \|\| PPC_MAPLE) && PCI
fed806f4	53	default HW_RANDOM
96d63c02 MB	54	---help---
	55	This driver provides kernel-side support for the Random Number
	56	Generator hardware found on AMD 76x-based motherboards.
	57
	58	To compile this driver as a module, choose M here: the
	59	module will be called amd-rng.
	60
	61	If unsure, say Y.
ef5d8627 MB	62
	63	config HW_RANDOM_GEODE
	64	tristate "AMD Geode HW Random Number Generator support"
e199ece4	65	depends on HW_RANDOM && X86_32 && PCI
fed806f4	66	default HW_RANDOM
ef5d8627 MB	67	---help---
	68	This driver provides kernel-side support for the Random Number
	69	Generator hardware found on the AMD Geode LX.
	70
	71	To compile this driver as a module, choose M here: the
	72	module will be called geode-rng.
	73
	74	If unsure, say Y.
13523363	75
ce087150 DM	76	config HW_RANDOM_N2RNG
	77	tristate "Niagara2 Random Number Generator support"
	78	depends on HW_RANDOM && SPARC64
	79	default HW_RANDOM
	80	---help---
	81	This driver provides kernel-side support for the Random Number
	82	Generator hardware found on Niagara2 cpus.
	83
	84	To compile this driver as a module, choose M here: the
	85	module will be called n2-rng.
	86
	87	If unsure, say Y.
	88
13523363 MB	89	config HW_RANDOM_VIA
13523363 MB	90	tristate "VIA HW Random Number Generator support"
e9736c16	91	depends on HW_RANDOM && X86
fed806f4	92	default HW_RANDOM
13523363 MB	93	---help---
	94	This driver provides kernel-side support for the Random Number
	95	Generator hardware found on VIA based motherboards.
	96
	97	To compile this driver as a module, choose M here: the
	98	module will be called via-rng.
	99
	100	If unsure, say Y.
d7174bcb MB	101
	102	config HW_RANDOM_IXP4XX
	103	tristate "Intel IXP4xx NPU HW Random Number Generator support"
	104	depends on HW_RANDOM && ARCH_IXP4XX
fed806f4	105	default HW_RANDOM
d7174bcb MB	106	---help---
	107	This driver provides kernel-side support for the Random
	108	Number Generator hardware found on the Intel IXP4xx NPU.
	109
	110	To compile this driver as a module, choose M here: the
	111	module will be called ixp4xx-rng.
	112
	113	If unsure, say Y.
ebc915ad MB	114
	115	config HW_RANDOM_OMAP
	116	tristate "OMAP Random Number Generator support"
088ef950	117	depends on HW_RANDOM && (ARCH_OMAP16XX \|\| ARCH_OMAP2)
fed806f4	118	default HW_RANDOM
ebc915ad MB	119	---help---
	120	This driver provides kernel-side support for the Random Number
	121	Generator hardware found on OMAP16xx and OMAP24xx multimedia
	122	processors.
	123
	124	To compile this driver as a module, choose M here: the
	125	module will be called omap-rng.
	126
	127	If unsure, say Y.
b8cb3448	128
f7557dc8 DD	129	config HW_RANDOM_OCTEON
	130	tristate "Octeon Random Number Generator support"
	131	depends on HW_RANDOM && CPU_CAVIUM_OCTEON
	132	default HW_RANDOM
	133	---help---
	134	This driver provides kernel-side support for the Random Number
	135	Generator hardware found on Octeon processors.
	136
	137	To compile this driver as a module, choose M here: the
	138	module will be called octeon-rng.
	139
	140	If unsure, say Y.
	141
b8cb3448 OJ	142	config HW_RANDOM_PASEMI
	143	tristate "PA Semi HW Random Number Generator support"
	144	depends on HW_RANDOM && PPC_PASEMI
	145	default HW_RANDOM
	146	---help---
	147	This driver provides kernel-side support for the Random Number
0d08a847	148	Generator hardware found on PA Semi PWRficient SoCs.
b8cb3448 OJ	149
	150	To compile this driver as a module, choose M here: the
	151	module will be called pasemi-rng.
	152
	153	If unsure, say Y.
	154
f7f510ec RR	155	config HW_RANDOM_VIRTIO
	156	tristate "VirtIO Random Number Generator support"
	157	depends on HW_RANDOM && VIRTIO
	158	---help---
	159	This driver provides kernel-side support for the virtual Random Number
	160	Generator hardware.
	161
	162	To compile this driver as a module, choose M here: the
	163	module will be called virtio-rng. If unsure, say N.
45001e92	164
049a947c AN	165	config HW_RANDOM_TX4939
	166	tristate "TX4939 Random Number Generator support"
	167	depends on HW_RANDOM && SOC_TX4939
	168	default HW_RANDOM
	169	---help---
	170	This driver provides kernel-side support for the Random Number
	171	Generator hardware found on TX4939 SoC.
	172
	173	To compile this driver as a module, choose M here: the
	174	module will be called tx4939-rng.
	175
	176	If unsure, say Y.
	177
45001e92 ACA	178	config HW_RANDOM_MXC_RNGA
	179	tristate "Freescale i.MX RNGA Random Number Generator"
	180	depends on HW_RANDOM && ARCH_HAS_RNGA
	181	---help---
	182	This driver provides kernel-side support for the Random Number
	183	Generator hardware found on Freescale i.MX processors.
	184
	185	To compile this driver as a module, choose M here: the
	186	module will be called mxc-rnga.
	187
	188	If unsure, say Y.
bc85b25e AR	189
	190	config HW_RANDOM_NOMADIK
	191	tristate "ST-Ericsson Nomadik Random Number Generator support"
	192	depends on HW_RANDOM && PLAT_NOMADIK
	193	---help---
	194	This driver provides kernel-side support for the Random Number
	195	Generator hardware found on ST-Ericsson SoCs (8815 and 8500).
	196
	197	To compile this driver as a module, choose M here: the
	198	module will be called nomadik-rng.
	199
	200	If unsure, say Y.
5efb94ee JI	201
	202	config HW_RANDOM_PICOXCELL
	203	tristate "Picochip picoXcell true random number generator support"
	204	depends on HW_RANDOM && ARCH_PICOXCELL && PICOXCELL_PC3X3
	205	---help---
	206	This driver provides kernel-side support for the Random Number
	207	Generator hardware found on Picochip PC3x3 and later devices.
	208
	209	To compile this driver as a module, choose M here: the
	210	module will be called picoxcell-rng.
	211
	212	If unsure, say Y.