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1# SPDX-License-Identifier: GPL-2.0-only
2#
3# Hardware Random Number Generator (RNG) configuration
4#
5
6menuconfig HW_RANDOM
7 tristate "Hardware Random Number Generator Core support"
8 default m
9 help
10 Hardware Random Number Generator Core infrastructure.
11
12 To compile this driver as a module, choose M here: the
13 module will be called rng-core. This provides a device
14 that's usually called /dev/hwrng, and which exposes one
15 of possibly several hardware random number generators.
16
17 These hardware random number generators do feed into the
18 kernel's random number generator entropy pool.
19
20 If unsure, say Y.
21
22if HW_RANDOM
23
24config HW_RANDOM_TIMERIOMEM
25 tristate "Timer IOMEM HW Random Number Generator support"
26 depends on HAS_IOMEM
27 help
28 This driver provides kernel-side support for a generic Random
29 Number Generator used by reading a 'dumb' iomem address that
30 is to be read no faster than, for example, once a second;
31 the default FPGA bitstream on the TS-7800 has such functionality.
32
33 To compile this driver as a module, choose M here: the
34 module will be called timeriomem-rng.
35
36 If unsure, say Y.
37
38config HW_RANDOM_INTEL
39 tristate "Intel HW Random Number Generator support"
40 depends on (X86 || COMPILE_TEST) && PCI
41 default HW_RANDOM
42 help
43 This driver provides kernel-side support for the Random Number
44 Generator hardware found on Intel i8xx-based motherboards.
45
46 To compile this driver as a module, choose M here: the
47 module will be called intel-rng.
48
49 If unsure, say Y.
50
51config HW_RANDOM_AMD
52 tristate "AMD HW Random Number Generator support"
53 depends on (X86 || PPC_MAPLE || COMPILE_TEST)
54 depends on PCI && HAS_IOPORT_MAP
55 default HW_RANDOM
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.
64
65config HW_RANDOM_ATMEL
66 tristate "Atmel Random Number Generator support"
67 depends on (ARCH_AT91 || COMPILE_TEST)
68 default HW_RANDOM
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
78config HW_RANDOM_BA431
79 tristate "Silex Insight BA431 Random Number Generator support"
80 depends on HAS_IOMEM
81 help
82 This driver provides kernel-side support for the Random Number
83 Generator hardware based on Silex Insight BA431 IP.
84
85 To compile this driver as a module, choose M here: the
86 module will be called ba431-rng.
87
88config HW_RANDOM_BCM2835
89 tristate "Broadcom BCM2835/BCM63xx Random Number Generator support"
90 depends on ARCH_BCM2835 || ARCH_BCM_NSP || ARCH_BCM_5301X || \
91 ARCH_BCMBCA || BCM63XX || BMIPS_GENERIC || COMPILE_TEST
92 default HW_RANDOM
93 help
94 This driver provides kernel-side support for the Random Number
95 Generator hardware found on the Broadcom BCM2835 and BCM63xx SoCs.
96
97 To compile this driver as a module, choose M here: the
98 module will be called bcm2835-rng
99
100 If unsure, say Y.
101
102config HW_RANDOM_IPROC_RNG200
103 tristate "Broadcom iProc/STB RNG200 support"
104 depends on ARCH_BCM_IPROC || ARCH_BCM2835 || ARCH_BRCMSTB || COMPILE_TEST
105 default HW_RANDOM
106 help
107 This driver provides kernel-side support for the RNG200
108 hardware found on the Broadcom iProc and STB SoCs.
109
110 To compile this driver as a module, choose M here: the
111 module will be called iproc-rng200
112
113 If unsure, say Y.
114
115config HW_RANDOM_GEODE
116 tristate "AMD Geode HW Random Number Generator support"
117 depends on (X86_32 || COMPILE_TEST)
118 depends on PCI
119 default HW_RANDOM
120 help
121 This driver provides kernel-side support for the Random Number
122 Generator hardware found on the AMD Geode LX.
123
124 To compile this driver as a module, choose M here: the
125 module will be called geode-rng.
126
127 If unsure, say Y.
128
129config HW_RANDOM_N2RNG
130 tristate "Niagara2 Random Number Generator support"
131 depends on SPARC64
132 default HW_RANDOM
133 help
134 This driver provides kernel-side support for the Random Number
135 Generator hardware found on Niagara2 cpus.
136
137 To compile this driver as a module, choose M here: the
138 module will be called n2-rng.
139
140 If unsure, say Y.
141
142config HW_RANDOM_VIA
143 tristate "VIA HW Random Number Generator support"
144 depends on X86
145 default HW_RANDOM
146 help
147 This driver provides kernel-side support for the Random Number
148 Generator hardware found on VIA based motherboards.
149
150 To compile this driver as a module, choose M here: the
151 module will be called via-rng.
152
153 If unsure, say Y.
154
155config HW_RANDOM_IXP4XX
156 tristate "Intel IXP4xx NPU HW Pseudo-Random Number Generator support"
157 depends on ARCH_IXP4XX || COMPILE_TEST
158 default HW_RANDOM
159 help
160 This driver provides kernel-side support for the Pseudo-Random
161 Number Generator hardware found on the Intel IXP45x/46x NPU.
162
163 To compile this driver as a module, choose M here: the
164 module will be called ixp4xx-rng.
165
166 If unsure, say Y.
167
168config HW_RANDOM_OMAP
169 tristate "OMAP Random Number Generator support"
170 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || ARCH_MVEBU || ARCH_K3 || COMPILE_TEST
171 default HW_RANDOM
172 help
173 This driver provides kernel-side support for the Random Number
174 Generator hardware found on OMAP16xx, OMAP2/3/4/5, AM33xx/AM43xx
175 multimedia processors, and Marvell Armada 7k/8k SoCs.
176
177 To compile this driver as a module, choose M here: the
178 module will be called omap-rng.
179
180 If unsure, say Y.
181
182config HW_RANDOM_OMAP3_ROM
183 tristate "OMAP3 ROM Random Number Generator support"
184 depends on ARCH_OMAP3 || COMPILE_TEST
185 default HW_RANDOM
186 help
187 This driver provides kernel-side support for the Random Number
188 Generator hardware found on OMAP34xx processors.
189
190 To compile this driver as a module, choose M here: the
191 module will be called omap3-rom-rng.
192
193 If unsure, say Y.
194
195config HW_RANDOM_OCTEON
196 tristate "Octeon Random Number Generator support"
197 depends on CAVIUM_OCTEON_SOC
198 default HW_RANDOM
199 help
200 This driver provides kernel-side support for the Random Number
201 Generator hardware found on Octeon processors.
202
203 To compile this driver as a module, choose M here: the
204 module will be called octeon-rng.
205
206 If unsure, say Y.
207
208config HW_RANDOM_PASEMI
209 tristate "PA Semi HW Random Number Generator support"
210 depends on PPC_PASEMI || (PPC && COMPILE_TEST)
211 default HW_RANDOM
212 help
213 This driver provides kernel-side support for the Random Number
214 Generator hardware found on PA Semi PWRficient SoCs.
215
216 To compile this driver as a module, choose M here: the
217 module will be called pasemi-rng.
218
219 If unsure, say Y.
220
221config HW_RANDOM_VIRTIO
222 tristate "VirtIO Random Number Generator support"
223 depends on VIRTIO
224 help
225 This driver provides kernel-side support for the virtual Random Number
226 Generator hardware.
227
228 To compile this driver as a module, choose M here: the
229 module will be called virtio-rng. If unsure, say N.
230
231config HW_RANDOM_MXC_RNGA
232 tristate "Freescale i.MX RNGA Random Number Generator"
233 depends on SOC_IMX31 || COMPILE_TEST
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 HAS_IOMEM
247 depends on SOC_IMX25 || SOC_IMX6SL || SOC_IMX6SLL || SOC_IMX6UL || COMPILE_TEST
248 default HW_RANDOM
249 help
250 This driver provides kernel-side support for the Random Number
251 Generator Version C hardware found on some Freescale i.MX
252 processors. Version B is also supported by this driver.
253
254 To compile this driver as a module, choose M here: the
255 module will be called imx-rngc.
256
257 If unsure, say Y.
258
259config HW_RANDOM_INGENIC_RNG
260 tristate "Ingenic Random Number Generator support"
261 depends on MACH_JZ4780 || MACH_X1000 || COMPILE_TEST
262 default HW_RANDOM
263 help
264 This driver provides kernel-side support for the Random Number Generator
265 hardware found in ingenic JZ4780 and X1000 SoC. MIPS Creator CI20 uses
266 JZ4780 SoC, YSH & ATIL CU1000-Neo uses X1000 SoC.
267
268 To compile this driver as a module, choose M here: the
269 module will be called ingenic-rng.
270
271 If unsure, say Y.
272
273config HW_RANDOM_INGENIC_TRNG
274 tristate "Ingenic True Random Number Generator support"
275 depends on MACH_X1830 || COMPILE_TEST
276 default HW_RANDOM
277 help
278 This driver provides kernel-side support for the True Random Number Generator
279 hardware found in ingenic X1830 SoC. YSH & ATIL CU1830-Neo uses X1830 SoC.
280
281 To compile this driver as a module, choose M here: the
282 module will be called ingenic-trng.
283
284 If unsure, say Y.
285
286config HW_RANDOM_NOMADIK
287 tristate "ST-Ericsson Nomadik Random Number Generator support"
288 depends on ARCH_NOMADIK || COMPILE_TEST
289 default HW_RANDOM
290 help
291 This driver provides kernel-side support for the Random Number
292 Generator hardware found on ST-Ericsson SoCs (8815 and 8500).
293
294 To compile this driver as a module, choose M here: the
295 module will be called nomadik-rng.
296
297 If unsure, say Y.
298
299config HW_RANDOM_PSERIES
300 tristate "pSeries HW Random Number Generator support"
301 depends on PPC64 && IBMVIO
302 default HW_RANDOM
303 help
304 This driver provides kernel-side support for the Random Number
305 Generator hardware found on POWER7+ machines and above
306
307 To compile this driver as a module, choose M here: the
308 module will be called pseries-rng.
309
310 If unsure, say Y.
311
312config HW_RANDOM_POWERNV
313 tristate "PowerNV Random Number Generator support"
314 depends on PPC_POWERNV
315 default HW_RANDOM
316 help
317 This is the driver for Random Number Generator hardware found
318 in POWER7+ and above machines for PowerNV platform.
319
320 To compile this driver as a module, choose M here: the
321 module will be called powernv-rng.
322
323 If unsure, say Y.
324
325config HW_RANDOM_HISI
326 tristate "Hisilicon Random Number Generator support"
327 depends on ARCH_HISI || COMPILE_TEST
328 default HW_RANDOM
329 help
330 This driver provides kernel-side support for the Random Number
331 Generator hardware found on Hisilicon Hip04 and Hip05 SoC.
332
333 To compile this driver as a module, choose M here: the
334 module will be called hisi-rng.
335
336 If unsure, say Y.
337
338config HW_RANDOM_HISTB
339 tristate "Hisilicon STB Random Number Generator support"
340 depends on ARCH_HISI || COMPILE_TEST
341 default ARCH_HISI
342 help
343 This driver provides kernel-side support for the Random Number
344 Generator hardware found on Hisilicon Hi37xx SoC.
345
346 To compile this driver as a module, choose M here: the
347 module will be called histb-rng.
348
349config HW_RANDOM_ST
350 tristate "ST Microelectronics HW Random Number Generator support"
351 depends on ARCH_STI || COMPILE_TEST
352 help
353 This driver provides kernel-side support for the Random Number
354 Generator hardware found on STi series of SoCs.
355
356 To compile this driver as a module, choose M here: the
357 module will be called st-rng.
358
359config HW_RANDOM_XGENE
360 tristate "APM X-Gene True Random Number Generator (TRNG) support"
361 depends on ARCH_XGENE || COMPILE_TEST
362 default HW_RANDOM
363 help
364 This driver provides kernel-side support for the Random Number
365 Generator hardware found on APM X-Gene SoC.
366
367 To compile this driver as a module, choose M here: the
368 module will be called xgene_rng.
369
370 If unsure, say Y.
371
372config HW_RANDOM_STM32
373 tristate "STMicroelectronics STM32 random number generator"
374 depends on ARCH_STM32 || COMPILE_TEST
375 depends on HAS_IOMEM
376 default HW_RANDOM
377 help
378 This driver provides kernel-side support for the Random Number
379 Generator hardware found on STM32 microcontrollers.
380
381 To compile this driver as a module, choose M here: the
382 module will be called stm32-rng.
383
384 If unsure, say N.
385
386config HW_RANDOM_PIC32
387 tristate "Microchip PIC32 Random Number Generator support"
388 depends on MACH_PIC32 || COMPILE_TEST
389 default HW_RANDOM if MACH_PIC32
390 help
391 This driver provides kernel-side support for the Random Number
392 Generator hardware found on a PIC32.
393
394 To compile this driver as a module, choose M here. the
395 module will be called pic32-rng.
396
397 If unsure, say Y.
398
399config HW_RANDOM_POLARFIRE_SOC
400 tristate "Microchip PolarFire SoC Random Number Generator support"
401 depends on HW_RANDOM && POLARFIRE_SOC_SYS_CTRL
402 help
403 This driver provides kernel-side support for the Random Number
404 Generator hardware found on PolarFire SoC (MPFS).
405
406 To compile this driver as a module, choose M here. The
407 module will be called mfps_rng.
408
409 If unsure, say N.
410
411
412config HW_RANDOM_MESON
413 tristate "Amlogic Meson Random Number Generator support"
414 depends on ARCH_MESON || COMPILE_TEST
415 depends on HAS_IOMEM && OF
416 default HW_RANDOM if ARCH_MESON
417 help
418 This driver provides kernel-side support for the Random Number
419 Generator hardware found on Amlogic Meson SoCs.
420
421 To compile this driver as a module, choose M here. the
422 module will be called meson-rng.
423
424 If unsure, say Y.
425
426config HW_RANDOM_CAVIUM
427 tristate "Cavium ThunderX Random Number Generator support"
428 depends on PCI
429 depends on ARCH_THUNDER || (ARM64 && COMPILE_TEST)
430 default HW_RANDOM
431 help
432 This driver provides kernel-side support for the Random Number
433 Generator hardware found on Cavium SoCs.
434
435 To compile this driver as a module, choose M here: the
436 module will be called cavium_rng.
437
438 If unsure, say Y.
439
440config HW_RANDOM_MTK
441 tristate "Mediatek Random Number Generator support"
442 depends on ARCH_MEDIATEK || COMPILE_TEST
443 depends on HAS_IOMEM && OF
444 default HW_RANDOM if ARCH_MEDIATEK
445 help
446 This driver provides kernel-side support for the Random Number
447 Generator hardware found on Mediatek SoCs.
448
449 To compile this driver as a module, choose M here. the
450 module will be called mtk-rng.
451
452 If unsure, say Y.
453
454config HW_RANDOM_S390
455 tristate "S390 True Random Number Generator support"
456 depends on S390
457 default HW_RANDOM
458 help
459 This driver provides kernel-side support for the True
460 Random Number Generator available as CPACF extension
461 on modern s390 hardware platforms.
462
463 To compile this driver as a module, choose M here: the
464 module will be called s390-trng.
465
466 If unsure, say Y.
467
468config HW_RANDOM_EXYNOS
469 tristate "Samsung Exynos True Random Number Generator support"
470 depends on ARCH_EXYNOS || COMPILE_TEST
471 depends on HAS_IOMEM
472 default HW_RANDOM if ARCH_EXYNOS
473 help
474 This driver provides support for the True Random Number
475 Generator available in Exynos SoCs.
476
477 To compile this driver as a module, choose M here: the module
478 will be called exynos-trng.
479
480 If unsure, say Y.
481
482config HW_RANDOM_OPTEE
483 tristate "OP-TEE based Random Number Generator support"
484 depends on OPTEE
485 default HW_RANDOM
486 help
487 This driver provides support for OP-TEE based Random Number
488 Generator on ARM SoCs where hardware entropy sources are not
489 accessible to normal world (Linux).
490
491 To compile this driver as a module, choose M here: the module
492 will be called optee-rng.
493
494 If unsure, say Y.
495
496config HW_RANDOM_NPCM
497 tristate "NPCM Random Number Generator support"
498 depends on ARCH_NPCM || COMPILE_TEST
499 depends on HAS_IOMEM
500 default HW_RANDOM if ARCH_NPCM
501 help
502 This driver provides support for the Random Number
503 Generator hardware available in Nuvoton NPCM SoCs.
504
505 To compile this driver as a module, choose M here: the
506 module will be called npcm-rng.
507
508 If unsure, say Y.
509
510config HW_RANDOM_KEYSTONE
511 depends on ARCH_KEYSTONE || COMPILE_TEST
512 depends on HAS_IOMEM && OF
513 default HW_RANDOM
514 tristate "TI Keystone NETCP SA Hardware random number generator"
515 help
516 This option enables Keystone's hardware random generator.
517
518config HW_RANDOM_CCTRNG
519 tristate "Arm CryptoCell True Random Number Generator support"
520 depends on HAS_IOMEM && OF
521 help
522 Say 'Y' to enable the True Random Number Generator driver for the
523 Arm TrustZone CryptoCell family of processors.
524 Currently the CryptoCell 713 and 703 are supported.
525 The driver is supported only in SoC where Trusted Execution
526 Environment is not used.
527 Choose 'M' to compile this driver as a module. The module
528 will be called cctrng.
529 If unsure, say 'N'.
530
531config HW_RANDOM_XIPHERA
532 tristate "Xiphera FPGA based True Random Number Generator support"
533 depends on HAS_IOMEM
534 help
535 This driver provides kernel-side support for Xiphera True Random
536 Number Generator Intellectual Property Core.
537
538 To compile this driver as a module, choose M here: the
539 module will be called xiphera-trng.
540
541config HW_RANDOM_ARM_SMCCC_TRNG
542 tristate "Arm SMCCC TRNG firmware interface support"
543 depends on HAVE_ARM_SMCCC_DISCOVERY
544 default HW_RANDOM
545 help
546 Say 'Y' to enable the True Random Number Generator driver using
547 the Arm SMCCC TRNG firmware interface. This reads entropy from
548 higher exception levels (firmware, hypervisor). Uses SMCCC for
549 communicating with the firmware:
550 https://developer.arm.com/documentation/den0098/latest/
551
552 To compile this driver as a module, choose M here: the
553 module will be called arm_smccc_trng.
554
555config HW_RANDOM_CN10K
556 tristate "Marvell CN10K Random Number Generator support"
557 depends on HW_RANDOM && PCI && (ARM64 || (64BIT && COMPILE_TEST))
558 default HW_RANDOM
559 help
560 This driver provides support for the True Random Number
561 generator available in Marvell CN10K SoCs.
562
563 To compile this driver as a module, choose M here.
564 The module will be called cn10k_rng. If unsure, say Y.
565
566config HW_RANDOM_JH7110
567 tristate "StarFive JH7110 Random Number Generator support"
568 depends on SOC_STARFIVE || COMPILE_TEST
569 help
570 This driver provides support for the True Random Number
571 Generator in StarFive JH7110 SoCs.
572
573 To compile this driver as a module, choose M here.
574 The module will be called jh7110-trng.
575
576endif # HW_RANDOM
577
578config UML_RANDOM
579 depends on UML
580 select HW_RANDOM
581 tristate "UML Random Number Generator support"
582 help
583 This option enables UML's "hardware" random number generator. It
584 attaches itself to the host's /dev/random, supplying as much entropy
585 as the host has, rather than the small amount the UML gets from its
586 own drivers. It registers itself as a rng-core driver thus providing
587 a device which is usually called /dev/hwrng. This hardware random
588 number generator does feed into the kernel's random number generator
589 entropy pool.
590
591 If unsure, say Y.
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 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.
20
21 If unsure, say Y.
22
23if HW_RANDOM
24
25config HW_RANDOM_TIMERIOMEM
26 tristate "Timer IOMEM HW Random Number Generator support"
27 depends on HAS_IOMEM
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
39config HW_RANDOM_INTEL
40 tristate "Intel HW Random Number Generator support"
41 depends on (X86 || IA64) && PCI
42 default HW_RANDOM
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.
51
52config HW_RANDOM_AMD
53 tristate "AMD HW Random Number Generator support"
54 depends on (X86 || PPC_MAPLE) && PCI
55 default HW_RANDOM
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.
64
65config HW_RANDOM_ATMEL
66 tristate "Atmel Random Number Generator support"
67 depends on ARCH_AT91 && HAVE_CLK && OF
68 default HW_RANDOM
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
78config HW_RANDOM_BCM63XX
79 tristate "Broadcom BCM63xx Random Number Generator support"
80 depends on BCM63XX || BMIPS_GENERIC
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
91config HW_RANDOM_BCM2835
92 tristate "Broadcom BCM2835 Random Number Generator support"
93 depends on ARCH_BCM2835 || ARCH_BCM_NSP || ARCH_BCM_5301X
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.
103
104config HW_RANDOM_IPROC_RNG200
105 tristate "Broadcom iProc RNG200 support"
106 depends on ARCH_BCM_IPROC
107 default HW_RANDOM
108 ---help---
109 This driver provides kernel-side support for the RNG200
110 hardware found on the Broadcom iProc SoCs.
111
112 To compile this driver as a module, choose M here: the
113 module will be called iproc-rng200
114
115 If unsure, say Y.
116
117config HW_RANDOM_GEODE
118 tristate "AMD Geode HW Random Number Generator support"
119 depends on X86_32 && PCI
120 default HW_RANDOM
121 ---help---
122 This driver provides kernel-side support for the Random Number
123 Generator hardware found on the AMD Geode LX.
124
125 To compile this driver as a module, choose M here: the
126 module will be called geode-rng.
127
128 If unsure, say Y.
129
130config HW_RANDOM_N2RNG
131 tristate "Niagara2 Random Number Generator support"
132 depends on SPARC64
133 default HW_RANDOM
134 ---help---
135 This driver provides kernel-side support for the Random Number
136 Generator hardware found on Niagara2 cpus.
137
138 To compile this driver as a module, choose M here: the
139 module will be called n2-rng.
140
141 If unsure, say Y.
142
143config HW_RANDOM_VIA
144 tristate "VIA HW Random Number Generator support"
145 depends on X86
146 default HW_RANDOM
147 ---help---
148 This driver provides kernel-side support for the Random Number
149 Generator hardware found on VIA based motherboards.
150
151 To compile this driver as a module, choose M here: the
152 module will be called via-rng.
153
154 If unsure, say Y.
155
156config HW_RANDOM_IXP4XX
157 tristate "Intel IXP4xx NPU HW Pseudo-Random Number Generator support"
158 depends on ARCH_IXP4XX
159 default HW_RANDOM
160 ---help---
161 This driver provides kernel-side support for the Pseudo-Random
162 Number Generator hardware found on the Intel IXP45x/46x NPU.
163
164 To compile this driver as a module, choose M here: the
165 module will be called ixp4xx-rng.
166
167 If unsure, say Y.
168
169config HW_RANDOM_OMAP
170 tristate "OMAP Random Number Generator support"
171 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || ARCH_MVEBU
172 default HW_RANDOM
173 ---help---
174 This driver provides kernel-side support for the Random Number
175 Generator hardware found on OMAP16xx, OMAP2/3/4/5 and AM33xx/AM43xx
176 multimedia processors.
177
178 To compile this driver as a module, choose M here: the
179 module will be called omap-rng.
180
181 If unsure, say Y.
182
183config HW_RANDOM_OMAP3_ROM
184 tristate "OMAP3 ROM Random Number Generator support"
185 depends on ARCH_OMAP3
186 default HW_RANDOM
187 ---help---
188 This driver provides kernel-side support for the Random Number
189 Generator hardware found on OMAP34xx processors.
190
191 To compile this driver as a module, choose M here: the
192 module will be called omap3-rom-rng.
193
194 If unsure, say Y.
195
196config HW_RANDOM_OCTEON
197 tristate "Octeon Random Number Generator support"
198 depends on CAVIUM_OCTEON_SOC
199 default HW_RANDOM
200 ---help---
201 This driver provides kernel-side support for the Random Number
202 Generator hardware found on Octeon processors.
203
204 To compile this driver as a module, choose M here: the
205 module will be called octeon-rng.
206
207 If unsure, say Y.
208
209config HW_RANDOM_PASEMI
210 tristate "PA Semi HW Random Number Generator support"
211 depends on PPC_PASEMI
212 default HW_RANDOM
213 ---help---
214 This driver provides kernel-side support for the Random Number
215 Generator hardware found on PA Semi PWRficient SoCs.
216
217 To compile this driver as a module, choose M here: the
218 module will be called pasemi-rng.
219
220 If unsure, say Y.
221
222config HW_RANDOM_VIRTIO
223 tristate "VirtIO Random Number Generator support"
224 depends on VIRTIO
225 ---help---
226 This driver provides kernel-side support for the virtual Random Number
227 Generator hardware.
228
229 To compile this driver as a module, choose M here: the
230 module will be called virtio-rng. If unsure, say N.
231
232config HW_RANDOM_TX4939
233 tristate "TX4939 Random Number Generator support"
234 depends on SOC_TX4939
235 default HW_RANDOM
236 ---help---
237 This driver provides kernel-side support for the Random Number
238 Generator hardware found on TX4939 SoC.
239
240 To compile this driver as a module, choose M here: the
241 module will be called tx4939-rng.
242
243 If unsure, say Y.
244
245config HW_RANDOM_MXC_RNGA
246 tristate "Freescale i.MX RNGA Random Number Generator"
247 depends on SOC_IMX31
248 default HW_RANDOM
249 ---help---
250 This driver provides kernel-side support for the Random Number
251 Generator hardware found on Freescale i.MX processors.
252
253 To compile this driver as a module, choose M here: the
254 module will be called mxc-rnga.
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_EXYNOS
298 tristate "EXYNOS HW random number generator support"
299 depends on ARCH_EXYNOS || COMPILE_TEST
300 depends on HAS_IOMEM
301 default HW_RANDOM
302 ---help---
303 This driver provides kernel-side support for the Random Number
304 Generator hardware found on EXYNOS SOCs.
305
306 To compile this driver as a module, choose M here: the
307 module will be called exynos-rng.
308
309 If unsure, say Y.
310
311config HW_RANDOM_TPM
312 tristate "TPM HW Random Number Generator support"
313 depends on TCG_TPM
314 default HW_RANDOM
315 ---help---
316 This driver provides kernel-side support for the Random Number
317 Generator in the Trusted Platform Module
318
319 To compile this driver as a module, choose M here: the
320 module will be called tpm-rng.
321
322 If unsure, say Y.
323
324config HW_RANDOM_HISI
325 tristate "Hisilicon Random Number Generator support"
326 depends on HW_RANDOM && ARCH_HISI
327 default HW_RANDOM
328 ---help---
329 This driver provides kernel-side support for the Random Number
330 Generator hardware found on Hisilicon Hip04 and Hip05 SoC.
331
332 To compile this driver as a module, choose M here: the
333 module will be called hisi-rng.
334
335 If unsure, say Y.
336
337config HW_RANDOM_MSM
338 tristate "Qualcomm SoCs Random Number Generator support"
339 depends on HW_RANDOM && ARCH_QCOM
340 default HW_RANDOM
341 ---help---
342 This driver provides kernel-side support for the Random Number
343 Generator hardware found on Qualcomm SoCs.
344
345 To compile this driver as a module, choose M here. the
346 module will be called msm-rng.
347
348 If unsure, say Y.
349
350config HW_RANDOM_ST
351 tristate "ST Microelectronics HW Random Number Generator support"
352 depends on HW_RANDOM && ARCH_STI
353 ---help---
354 This driver provides kernel-side support for the Random Number
355 Generator hardware found on STi series of SoCs.
356
357 To compile this driver as a module, choose M here: the
358 module will be called st-rng.
359
360config HW_RANDOM_XGENE
361 tristate "APM X-Gene True Random Number Generator (TRNG) support"
362 depends on HW_RANDOM && ARCH_XGENE
363 default HW_RANDOM
364 ---help---
365 This driver provides kernel-side support for the Random Number
366 Generator hardware found on APM X-Gene SoC.
367
368 To compile this driver as a module, choose M here: the
369 module will be called xgene_rng.
370
371 If unsure, say Y.
372
373config HW_RANDOM_STM32
374 tristate "STMicroelectronics STM32 random number generator"
375 depends on HW_RANDOM && (ARCH_STM32 || COMPILE_TEST)
376 depends on HAS_IOMEM
377 help
378 This driver provides kernel-side support for the Random Number
379 Generator hardware found on STM32 microcontrollers.
380
381 To compile this driver as a module, choose M here: the
382 module will be called stm32-rng.
383
384 If unsure, say N.
385
386config HW_RANDOM_PIC32
387 tristate "Microchip PIC32 Random Number Generator support"
388 depends on HW_RANDOM && MACH_PIC32
389 default y
390 ---help---
391 This driver provides kernel-side support for the Random Number
392 Generator hardware found on a PIC32.
393
394 To compile this driver as a module, choose M here. the
395 module will be called pic32-rng.
396
397 If unsure, say Y.
398
399config HW_RANDOM_MESON
400 tristate "Amlogic Meson Random Number Generator support"
401 depends on HW_RANDOM
402 depends on ARCH_MESON || COMPILE_TEST
403 default y
404 ---help---
405 This driver provides kernel-side support for the Random Number
406 Generator hardware found on Amlogic Meson SoCs.
407
408 To compile this driver as a module, choose M here. the
409 module will be called meson-rng.
410
411 If unsure, say Y.
412
413config HW_RANDOM_CAVIUM
414 tristate "Cavium ThunderX Random Number Generator support"
415 depends on HW_RANDOM && PCI && (ARM64 || (COMPILE_TEST && 64BIT))
416 default HW_RANDOM
417 ---help---
418 This driver provides kernel-side support for the Random Number
419 Generator hardware found on Cavium SoCs.
420
421 To compile this driver as a module, choose M here: the
422 module will be called cavium_rng.
423
424 If unsure, say Y.
425
426endif # HW_RANDOM
427
428config UML_RANDOM
429 depends on UML
430 tristate "Hardware random number generator"
431 help
432 This option enables UML's "hardware" random number generator. It
433 attaches itself to the host's /dev/random, supplying as much entropy
434 as the host has, rather than the small amount the UML gets from its
435 own drivers. It registers itself as a standard hardware random number
436 generator, major 10, minor 183, and the canonical device name is
437 /dev/hwrng.
438 The way to make use of this is to install the rng-tools package
439 (check your distro, or download from
440 http://sourceforge.net/projects/gkernel/). rngd periodically reads
441 /dev/hwrng and injects the entropy into /dev/random.