tjh.dev
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1#
2# Hardware Random Number Generator (RNG) configuration
3#
4
5menuconfig HW_RANDOM
6 tristate "Hardware Random Number Generator Core support"
7 default m
8 ---help---
9 Hardware Random Number Generator Core infrastructure.
10
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.
15
16 These hardware random number generators do feed into the
17 kernel's random number generator entropy pool.
18
19 If unsure, say Y.
20
21if HW_RANDOM
22
23config HW_RANDOM_TIMERIOMEM
24 tristate "Timer IOMEM HW Random Number Generator support"
25 depends on HAS_IOMEM
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
37config HW_RANDOM_INTEL
38 tristate "Intel HW Random Number Generator support"
39 depends on (X86 || IA64) && PCI
40 default HW_RANDOM
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.
49
50config HW_RANDOM_AMD
51 tristate "AMD HW Random Number Generator support"
52 depends on (X86 || PPC_MAPLE) && PCI
53 default HW_RANDOM
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.
62
63config HW_RANDOM_ATMEL
64 tristate "Atmel Random Number Generator support"
65 depends on ARCH_AT91 && HAVE_CLK && OF
66 default HW_RANDOM
67 ---help---
68 This driver provides kernel-side support for the Random Number
69 Generator hardware found on Atmel AT91 devices.
70
71 To compile this driver as a module, choose M here: the
72 module will be called atmel-rng.
73
74 If unsure, say Y.
75
76config 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
80 default HW_RANDOM
81 ---help---
82 This driver provides kernel-side support for the Random Number
83 Generator hardware found on the Broadcom BCM2835 and BCM63xx SoCs.
84
85 To compile this driver as a module, choose M here: the
86 module will be called bcm2835-rng
87
88 If unsure, say Y.
89
90config HW_RANDOM_IPROC_RNG200
91 tristate "Broadcom iProc/STB RNG200 support"
92 depends on ARCH_BCM_IPROC || ARCH_BRCMSTB
93 default HW_RANDOM
94 ---help---
95 This driver provides kernel-side support for the RNG200
96 hardware found on the Broadcom iProc and STB SoCs.
97
98 To compile this driver as a module, choose M here: the
99 module will be called iproc-rng200
100
101 If unsure, say Y.
102
103config HW_RANDOM_GEODE
104 tristate "AMD Geode HW Random Number Generator support"
105 depends on X86_32 && PCI
106 default HW_RANDOM
107 ---help---
108 This driver provides kernel-side support for the Random Number
109 Generator hardware found on the AMD Geode LX.
110
111 To compile this driver as a module, choose M here: the
112 module will be called geode-rng.
113
114 If unsure, say Y.
115
116config HW_RANDOM_N2RNG
117 tristate "Niagara2 Random Number Generator support"
118 depends on SPARC64
119 default HW_RANDOM
120 ---help---
121 This driver provides kernel-side support for the Random Number
122 Generator hardware found on Niagara2 cpus.
123
124 To compile this driver as a module, choose M here: the
125 module will be called n2-rng.
126
127 If unsure, say Y.
128
129config HW_RANDOM_VIA
130 tristate "VIA HW Random Number Generator support"
131 depends on X86
132 default HW_RANDOM
133 ---help---
134 This driver provides kernel-side support for the Random Number
135 Generator hardware found on VIA based motherboards.
136
137 To compile this driver as a module, choose M here: the
138 module will be called via-rng.
139
140 If unsure, say Y.
141
142config HW_RANDOM_IXP4XX
143 tristate "Intel IXP4xx NPU HW Pseudo-Random Number Generator support"
144 depends on ARCH_IXP4XX
145 default HW_RANDOM
146 ---help---
147 This driver provides kernel-side support for the Pseudo-Random
148 Number Generator hardware found on the Intel IXP45x/46x NPU.
149
150 To compile this driver as a module, choose M here: the
151 module will be called ixp4xx-rng.
152
153 If unsure, say Y.
154
155config HW_RANDOM_OMAP
156 tristate "OMAP Random Number Generator support"
157 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || ARCH_MVEBU
158 default HW_RANDOM
159 ---help---
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.
163
164 To compile this driver as a module, choose M here: the
165 module will be called omap-rng.
166
167 If unsure, say Y.
168
169config HW_RANDOM_OMAP3_ROM
170 tristate "OMAP3 ROM Random Number Generator support"
171 depends on ARCH_OMAP3
172 default HW_RANDOM
173 ---help---
174 This driver provides kernel-side support for the Random Number
175 Generator hardware found on OMAP34xx processors.
176
177 To compile this driver as a module, choose M here: the
178 module will be called omap3-rom-rng.
179
180 If unsure, say Y.
181
182config HW_RANDOM_OCTEON
183 tristate "Octeon Random Number Generator support"
184 depends on CAVIUM_OCTEON_SOC
185 default HW_RANDOM
186 ---help---
187 This driver provides kernel-side support for the Random Number
188 Generator hardware found on Octeon processors.
189
190 To compile this driver as a module, choose M here: the
191 module will be called octeon-rng.
192
193 If unsure, say Y.
194
195config HW_RANDOM_PASEMI
196 tristate "PA Semi HW Random Number Generator support"
197 depends on PPC_PASEMI
198 default HW_RANDOM
199 ---help---
200 This driver provides kernel-side support for the Random Number
201 Generator hardware found on PA Semi PWRficient SoCs.
202
203 To compile this driver as a module, choose M here: the
204 module will be called pasemi-rng.
205
206 If unsure, say Y.
207
208config HW_RANDOM_VIRTIO
209 tristate "VirtIO Random Number Generator support"
210 depends on VIRTIO
211 ---help---
212 This driver provides kernel-side support for the virtual Random Number
213 Generator hardware.
214
215 To compile this driver as a module, choose M here: the
216 module will be called virtio-rng. If unsure, say N.
217
218config HW_RANDOM_TX4939
219 tristate "TX4939 Random Number Generator support"
220 depends on SOC_TX4939
221 default HW_RANDOM
222 ---help---
223 This driver provides kernel-side support for the Random Number
224 Generator hardware found on TX4939 SoC.
225
226 To compile this driver as a module, choose M here: the
227 module will be called tx4939-rng.
228
229 If unsure, say Y.
230
231config HW_RANDOM_MXC_RNGA
232 tristate "Freescale i.MX RNGA Random Number Generator"
233 depends on SOC_IMX31
234 default HW_RANDOM
235 ---help---
236 This driver provides kernel-side support for the Random Number
237 Generator hardware found on Freescale i.MX processors.
238
239 To compile this driver as a module, choose M here: the
240 module will be called mxc-rnga.
241
242 If unsure, say Y.
243
244config HW_RANDOM_IMX_RNGC
245 tristate "Freescale i.MX RNGC Random Number Generator"
246 depends on ARCH_MXC
247 default HW_RANDOM
248 ---help---
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.
252
253 To compile this driver as a module, choose M here: the
254 module will be called imx-rngc.
255
256 If unsure, say Y.
257
258config HW_RANDOM_NOMADIK
259 tristate "ST-Ericsson Nomadik Random Number Generator support"
260 depends on ARCH_NOMADIK
261 default HW_RANDOM
262 ---help---
263 This driver provides kernel-side support for the Random Number
264 Generator hardware found on ST-Ericsson SoCs (8815 and 8500).
265
266 To compile this driver as a module, choose M here: the
267 module will be called nomadik-rng.
268
269 If unsure, say Y.
270
271config HW_RANDOM_PSERIES
272 tristate "pSeries HW Random Number Generator support"
273 depends on PPC64 && IBMVIO
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.
283
284config HW_RANDOM_POWERNV
285 tristate "PowerNV Random Number Generator support"
286 depends on PPC_POWERNV
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
297config HW_RANDOM_HISI
298 tristate "Hisilicon Random Number Generator support"
299 depends on HW_RANDOM && ARCH_HISI
300 default HW_RANDOM
301 ---help---
302 This driver provides kernel-side support for the Random Number
303 Generator hardware found on Hisilicon Hip04 and Hip05 SoC.
304
305 To compile this driver as a module, choose M here: the
306 module will be called hisi-rng.
307
308 If unsure, say Y.
309
310config HW_RANDOM_ST
311 tristate "ST Microelectronics HW Random Number Generator support"
312 depends on HW_RANDOM && ARCH_STI
313 ---help---
314 This driver provides kernel-side support for the Random Number
315 Generator hardware found on STi series of SoCs.
316
317 To compile this driver as a module, choose M here: the
318 module will be called st-rng.
319
320config HW_RANDOM_XGENE
321 tristate "APM X-Gene True Random Number Generator (TRNG) support"
322 depends on HW_RANDOM && ARCH_XGENE
323 default HW_RANDOM
324 ---help---
325 This driver provides kernel-side support for the Random Number
326 Generator hardware found on APM X-Gene SoC.
327
328 To compile this driver as a module, choose M here: the
329 module will be called xgene_rng.
330
331 If unsure, say Y.
332
333config HW_RANDOM_STM32
334 tristate "STMicroelectronics STM32 random number generator"
335 depends on HW_RANDOM && (ARCH_STM32 || COMPILE_TEST)
336 depends on HAS_IOMEM
337 default HW_RANDOM
338 help
339 This driver provides kernel-side support for the Random Number
340 Generator hardware found on STM32 microcontrollers.
341
342 To compile this driver as a module, choose M here: the
343 module will be called stm32-rng.
344
345 If unsure, say N.
346
347config HW_RANDOM_PIC32
348 tristate "Microchip PIC32 Random Number Generator support"
349 depends on HW_RANDOM && MACH_PIC32
350 default y
351 ---help---
352 This driver provides kernel-side support for the Random Number
353 Generator hardware found on a PIC32.
354
355 To compile this driver as a module, choose M here. the
356 module will be called pic32-rng.
357
358 If unsure, say Y.
359
360config HW_RANDOM_MESON
361 tristate "Amlogic Meson Random Number Generator support"
362 depends on HW_RANDOM
363 depends on ARCH_MESON || COMPILE_TEST
364 default y
365 ---help---
366 This driver provides kernel-side support for the Random Number
367 Generator hardware found on Amlogic Meson SoCs.
368
369 To compile this driver as a module, choose M here. the
370 module will be called meson-rng.
371
372 If unsure, say Y.
373
374config HW_RANDOM_CAVIUM
375 tristate "Cavium ThunderX Random Number Generator support"
376 depends on HW_RANDOM && PCI && (ARM64 || (COMPILE_TEST && 64BIT))
377 default HW_RANDOM
378 ---help---
379 This driver provides kernel-side support for the Random Number
380 Generator hardware found on Cavium SoCs.
381
382 To compile this driver as a module, choose M here: the
383 module will be called cavium_rng.
384
385 If unsure, say Y.
386
387config HW_RANDOM_MTK
388 tristate "Mediatek Random Number Generator support"
389 depends on HW_RANDOM
390 depends on ARCH_MEDIATEK || COMPILE_TEST
391 default y
392 ---help---
393 This driver provides kernel-side support for the Random Number
394 Generator hardware found on Mediatek SoCs.
395
396 To compile this driver as a module, choose M here. the
397 module will be called mtk-rng.
398
399 If unsure, say Y.
400
401config HW_RANDOM_S390
402 tristate "S390 True Random Number Generator support"
403 depends on S390
404 default HW_RANDOM
405 ---help---
406 This driver provides kernel-side support for the True
407 Random Number Generator available as CPACF extension
408 on modern s390 hardware platforms.
409
410 To compile this driver as a module, choose M here: the
411 module will be called s390-trng.
412
413 If unsure, say Y.
414
415config HW_RANDOM_EXYNOS
416 tristate "Samsung Exynos True Random Number Generator support"
417 depends on ARCH_EXYNOS || COMPILE_TEST
418 default HW_RANDOM
419 ---help---
420 This driver provides support for the True Random Number
421 Generator available in Exynos SoCs.
422
423 To compile this driver as a module, choose M here: the module
424 will be called exynos-trng.
425
426 If unsure, say Y.
427endif # HW_RANDOM
428
429config UML_RANDOM
430 depends on UML
431 tristate "Hardware random number generator"
432 help
433 This option enables UML's "hardware" random number generator. It
434 attaches itself to the host's /dev/random, supplying as much entropy
435 as the host has, rather than the small amount the UML gets from its
436 own drivers. It registers itself as a standard hardware random number
437 generator, major 10, minor 183, and the canonical device name is
438 /dev/hwrng.
439 The way to make use of this is to install the rng-tools package
440 (check your distro, or download from
441 http://sourceforge.net/projects/gkernel/). rngd periodically reads
442 /dev/hwrng and injects the entropy into /dev/random.
443
444config HW_RANDOM_KEYSTONE
445 depends on ARCH_KEYSTONE
446 default HW_RANDOM
447 tristate "TI Keystone NETCP SA Hardware random number generator"
448 help
449 This option enables Keystone's hardware random generator.