2 # Hardware Random Number Generator (RNG) configuration
6 tristate "Hardware Random Number Generator Core support"
9 Hardware Random Number Generator Core infrastructure.
11 To compile this driver as a module, choose M here: the
12 module will be called rng-core. This provides a device
13 that's usually called /dev/hwrng, and which exposes one
14 of possibly several hardware random number generators.
16 These hardware random number generators do feed into the
17 kernel's random number generator entropy pool.
23 config HW_RANDOM_TIMERIOMEM
24 tristate "Timer IOMEM HW Random Number Generator support"
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.
32 To compile this driver as a module, choose M here: the
33 module will be called timeriomem-rng.
37 config HW_RANDOM_INTEL
38 tristate "Intel HW Random Number Generator support"
39 depends on (X86 || IA64) && PCI
42 This driver provides kernel-side support for the Random Number
43 Generator hardware found on Intel i8xx-based motherboards.
45 To compile this driver as a module, choose M here: the
46 module will be called intel-rng.
51 tristate "AMD HW Random Number Generator support"
52 depends on (X86 || PPC_MAPLE) && PCI
55 This driver provides kernel-side support for the Random Number
56 Generator hardware found on AMD 76x-based motherboards.
58 To compile this driver as a module, choose M here: the
59 module will be called amd-rng.
63 config HW_RANDOM_ATMEL
64 tristate "Atmel Random Number Generator support"
65 depends on ARCH_AT91 && HAVE_CLK && OF
68 This driver provides kernel-side support for the Random Number
69 Generator hardware found on Atmel AT91 devices.
71 To compile this driver as a module, choose M here: the
72 module will be called atmel-rng.
76 config HW_RANDOM_BCM2835
77 tristate "Broadcom BCM2835/BCM63xx Random Number Generator support"
78 depends on ARCH_BCM2835 || ARCH_BCM_NSP || ARCH_BCM_5301X || \
79 ARCH_BCM_63XX || BCM63XX || BMIPS_GENERIC
82 This driver provides kernel-side support for the Random Number
83 Generator hardware found on the Broadcom BCM2835 and BCM63xx SoCs.
85 To compile this driver as a module, choose M here: the
86 module will be called bcm2835-rng
90 config HW_RANDOM_IPROC_RNG200
91 tristate "Broadcom iProc/STB RNG200 support"
92 depends on ARCH_BCM_IPROC || ARCH_BRCMSTB
95 This driver provides kernel-side support for the RNG200
96 hardware found on the Broadcom iProc and STB SoCs.
98 To compile this driver as a module, choose M here: the
99 module will be called iproc-rng200
103 config HW_RANDOM_GEODE
104 tristate "AMD Geode HW Random Number Generator support"
105 depends on X86_32 && PCI
108 This driver provides kernel-side support for the Random Number
109 Generator hardware found on the AMD Geode LX.
111 To compile this driver as a module, choose M here: the
112 module will be called geode-rng.
116 config HW_RANDOM_N2RNG
117 tristate "Niagara2 Random Number Generator support"
121 This driver provides kernel-side support for the Random Number
122 Generator hardware found on Niagara2 cpus.
124 To compile this driver as a module, choose M here: the
125 module will be called n2-rng.
130 tristate "VIA HW Random Number Generator support"
134 This driver provides kernel-side support for the Random Number
135 Generator hardware found on VIA based motherboards.
137 To compile this driver as a module, choose M here: the
138 module will be called via-rng.
142 config HW_RANDOM_IXP4XX
143 tristate "Intel IXP4xx NPU HW Pseudo-Random Number Generator support"
144 depends on ARCH_IXP4XX
147 This driver provides kernel-side support for the Pseudo-Random
148 Number Generator hardware found on the Intel IXP45x/46x NPU.
150 To compile this driver as a module, choose M here: the
151 module will be called ixp4xx-rng.
155 config HW_RANDOM_OMAP
156 tristate "OMAP Random Number Generator support"
157 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || ARCH_MVEBU
160 This driver provides kernel-side support for the Random Number
161 Generator hardware found on OMAP16xx, OMAP2/3/4/5, AM33xx/AM43xx
162 multimedia processors, and Marvell Armada 7k/8k SoCs.
164 To compile this driver as a module, choose M here: the
165 module will be called omap-rng.
169 config HW_RANDOM_OMAP3_ROM
170 tristate "OMAP3 ROM Random Number Generator support"
171 depends on ARCH_OMAP3
174 This driver provides kernel-side support for the Random Number
175 Generator hardware found on OMAP34xx processors.
177 To compile this driver as a module, choose M here: the
178 module will be called omap3-rom-rng.
182 config HW_RANDOM_OCTEON
183 tristate "Octeon Random Number Generator support"
184 depends on CAVIUM_OCTEON_SOC
187 This driver provides kernel-side support for the Random Number
188 Generator hardware found on Octeon processors.
190 To compile this driver as a module, choose M here: the
191 module will be called octeon-rng.
195 config HW_RANDOM_PASEMI
196 tristate "PA Semi HW Random Number Generator support"
197 depends on PPC_PASEMI
200 This driver provides kernel-side support for the Random Number
201 Generator hardware found on PA Semi PWRficient SoCs.
203 To compile this driver as a module, choose M here: the
204 module will be called pasemi-rng.
208 config HW_RANDOM_VIRTIO
209 tristate "VirtIO Random Number Generator support"
212 This driver provides kernel-side support for the virtual Random Number
215 To compile this driver as a module, choose M here: the
216 module will be called virtio-rng. If unsure, say N.
218 config HW_RANDOM_TX4939
219 tristate "TX4939 Random Number Generator support"
220 depends on SOC_TX4939
223 This driver provides kernel-side support for the Random Number
224 Generator hardware found on TX4939 SoC.
226 To compile this driver as a module, choose M here: the
227 module will be called tx4939-rng.
231 config HW_RANDOM_MXC_RNGA
232 tristate "Freescale i.MX RNGA Random Number Generator"
236 This driver provides kernel-side support for the Random Number
237 Generator hardware found on Freescale i.MX processors.
239 To compile this driver as a module, choose M here: the
240 module will be called mxc-rnga.
244 config HW_RANDOM_IMX_RNGC
245 tristate "Freescale i.MX RNGC Random Number Generator"
249 This driver provides kernel-side support for the Random Number
250 Generator Version C hardware found on some Freescale i.MX
251 processors. Version B is also supported by this driver.
253 To compile this driver as a module, choose M here: the
254 module will be called imx-rngc.
258 config HW_RANDOM_NOMADIK
259 tristate "ST-Ericsson Nomadik Random Number Generator support"
260 depends on ARCH_NOMADIK
263 This driver provides kernel-side support for the Random Number
264 Generator hardware found on ST-Ericsson SoCs (8815 and 8500).
266 To compile this driver as a module, choose M here: the
267 module will be called nomadik-rng.
271 config HW_RANDOM_PSERIES
272 tristate "pSeries HW Random Number Generator support"
273 depends on PPC64 && IBMVIO
276 This driver provides kernel-side support for the Random Number
277 Generator hardware found on POWER7+ machines and above
279 To compile this driver as a module, choose M here: the
280 module will be called pseries-rng.
284 config HW_RANDOM_POWERNV
285 tristate "PowerNV Random Number Generator support"
286 depends on PPC_POWERNV
289 This is the driver for Random Number Generator hardware found
290 in POWER7+ and above machines for PowerNV platform.
292 To compile this driver as a module, choose M here: the
293 module will be called powernv-rng.
298 tristate "TPM HW Random Number Generator support"
302 This driver provides kernel-side support for the Random Number
303 Generator in the Trusted Platform Module
305 To compile this driver as a module, choose M here: the
306 module will be called tpm-rng.
310 config HW_RANDOM_HISI
311 tristate "Hisilicon Random Number Generator support"
312 depends on HW_RANDOM && ARCH_HISI
315 This driver provides kernel-side support for the Random Number
316 Generator hardware found on Hisilicon Hip04 and Hip05 SoC.
318 To compile this driver as a module, choose M here: the
319 module will be called hisi-rng.
324 tristate "Qualcomm SoCs Random Number Generator support"
325 depends on HW_RANDOM && ARCH_QCOM
328 This driver provides kernel-side support for the Random Number
329 Generator hardware found on Qualcomm SoCs.
331 To compile this driver as a module, choose M here. the
332 module will be called msm-rng.
337 tristate "ST Microelectronics HW Random Number Generator support"
338 depends on HW_RANDOM && ARCH_STI
340 This driver provides kernel-side support for the Random Number
341 Generator hardware found on STi series of SoCs.
343 To compile this driver as a module, choose M here: the
344 module will be called st-rng.
346 config HW_RANDOM_XGENE
347 tristate "APM X-Gene True Random Number Generator (TRNG) support"
348 depends on HW_RANDOM && ARCH_XGENE
351 This driver provides kernel-side support for the Random Number
352 Generator hardware found on APM X-Gene SoC.
354 To compile this driver as a module, choose M here: the
355 module will be called xgene_rng.
359 config HW_RANDOM_STM32
360 tristate "STMicroelectronics STM32 random number generator"
361 depends on HW_RANDOM && (ARCH_STM32 || COMPILE_TEST)
364 This driver provides kernel-side support for the Random Number
365 Generator hardware found on STM32 microcontrollers.
367 To compile this driver as a module, choose M here: the
368 module will be called stm32-rng.
372 config HW_RANDOM_PIC32
373 tristate "Microchip PIC32 Random Number Generator support"
374 depends on HW_RANDOM && MACH_PIC32
377 This driver provides kernel-side support for the Random Number
378 Generator hardware found on a PIC32.
380 To compile this driver as a module, choose M here. the
381 module will be called pic32-rng.
385 config HW_RANDOM_MESON
386 tristate "Amlogic Meson Random Number Generator support"
388 depends on ARCH_MESON || COMPILE_TEST
391 This driver provides kernel-side support for the Random Number
392 Generator hardware found on Amlogic Meson SoCs.
394 To compile this driver as a module, choose M here. the
395 module will be called meson-rng.
399 config HW_RANDOM_CAVIUM
400 tristate "Cavium ThunderX Random Number Generator support"
401 depends on HW_RANDOM && PCI && (ARM64 || (COMPILE_TEST && 64BIT))
404 This driver provides kernel-side support for the Random Number
405 Generator hardware found on Cavium SoCs.
407 To compile this driver as a module, choose M here: the
408 module will be called cavium_rng.
413 tristate "Mediatek Random Number Generator support"
415 depends on ARCH_MEDIATEK || COMPILE_TEST
418 This driver provides kernel-side support for the Random Number
419 Generator hardware found on Mediatek SoCs.
421 To compile this driver as a module, choose M here. the
422 module will be called mtk-rng.
426 config HW_RANDOM_S390
427 tristate "S390 True Random Number Generator support"
431 This driver provides kernel-side support for the True
432 Random Number Generator available as CPACF extension
433 on modern s390 hardware platforms.
435 To compile this driver as a module, choose M here: the
436 module will be called s390-trng.
440 config HW_RANDOM_EXYNOS
441 tristate "Samsung Exynos True Random Number Generator support"
442 depends on ARCH_EXYNOS || COMPILE_TEST
445 This driver provides support for the True Random Number
446 Generator available in Exynos SoCs.
448 To compile this driver as a module, choose M here: the module
449 will be called exynos-trng.
456 tristate "Hardware random number generator"
458 This option enables UML's "hardware" random number generator. It
459 attaches itself to the host's /dev/random, supplying as much entropy
460 as the host has, rather than the small amount the UML gets from its
461 own drivers. It registers itself as a standard hardware random number
462 generator, major 10, minor 183, and the canonical device name is
464 The way to make use of this is to install the rng-tools package
465 (check your distro, or download from
466 http://sourceforge.net/projects/gkernel/). rngd periodically reads
467 /dev/hwrng and injects the entropy into /dev/random.