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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" |
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 |
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 | 62 | |
677d3e2f PK |
63 | config HW_RANDOM_ATMEL |
64 | tristate "Atmel Random Number Generator support" | |
1234f4ba | 65 | depends on HW_RANDOM && HAVE_CLK |
028fdd87 | 66 | default (HW_RANDOM && ARCH_AT91) |
677d3e2f PK |
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 | ||
553072b2 FF |
76 | config HW_RANDOM_BCM63XX |
77 | tristate "Broadcom BCM63xx Random Number Generator support" | |
78 | depends on HW_RANDOM && BCM63XX | |
79 | default HW_RANDOM | |
80 | ---help--- | |
81 | This driver provides kernel-side support for the Random Number | |
82 | Generator hardware found on the Broadcom BCM63xx SoCs. | |
83 | ||
84 | To compile this driver as a module, choose M here: the | |
85 | module will be called bcm63xx-rng | |
86 | ||
87 | If unusure, say Y. | |
88 | ||
8c4196a2 LR |
89 | config HW_RANDOM_BCM2835 |
90 | tristate "Broadcom BCM2835 Random Number Generator support" | |
91 | depends on HW_RANDOM && ARCH_BCM2835 | |
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 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. | |
553072b2 | 101 | |
ef5d8627 MB |
102 | config HW_RANDOM_GEODE |
103 | tristate "AMD Geode HW Random Number Generator support" | |
e199ece4 | 104 | depends on HW_RANDOM && X86_32 && PCI |
fed806f4 | 105 | default HW_RANDOM |
ef5d8627 MB |
106 | ---help--- |
107 | This driver provides kernel-side support for the Random Number | |
108 | Generator hardware found on the AMD Geode LX. | |
109 | ||
110 | To compile this driver as a module, choose M here: the | |
111 | module will be called geode-rng. | |
112 | ||
113 | If unsure, say Y. | |
13523363 | 114 | |
ce087150 DM |
115 | config HW_RANDOM_N2RNG |
116 | tristate "Niagara2 Random Number Generator support" | |
117 | depends on HW_RANDOM && SPARC64 | |
118 | default HW_RANDOM | |
119 | ---help--- | |
120 | This driver provides kernel-side support for the Random Number | |
121 | Generator hardware found on Niagara2 cpus. | |
122 | ||
123 | To compile this driver as a module, choose M here: the | |
124 | module will be called n2-rng. | |
125 | ||
126 | If unsure, say Y. | |
127 | ||
13523363 MB |
128 | config HW_RANDOM_VIA |
129 | tristate "VIA HW Random Number Generator support" | |
e9736c16 | 130 | depends on HW_RANDOM && X86 |
fed806f4 | 131 | default HW_RANDOM |
13523363 MB |
132 | ---help--- |
133 | This driver provides kernel-side support for the Random Number | |
134 | Generator hardware found on VIA based motherboards. | |
135 | ||
136 | To compile this driver as a module, choose M here: the | |
137 | module will be called via-rng. | |
138 | ||
139 | If unsure, say Y. | |
d7174bcb MB |
140 | |
141 | config HW_RANDOM_IXP4XX | |
553da857 | 142 | tristate "Intel IXP4xx NPU HW Pseudo-Random Number Generator support" |
d7174bcb | 143 | depends on HW_RANDOM && ARCH_IXP4XX |
fed806f4 | 144 | default HW_RANDOM |
d7174bcb | 145 | ---help--- |
553da857 KH |
146 | This driver provides kernel-side support for the Pseudo-Random |
147 | Number Generator hardware found on the Intel IXP45x/46x NPU. | |
d7174bcb MB |
148 | |
149 | To compile this driver as a module, choose M here: the | |
150 | module will be called ixp4xx-rng. | |
151 | ||
152 | If unsure, say Y. | |
ebc915ad MB |
153 | |
154 | config HW_RANDOM_OMAP | |
155 | tristate "OMAP Random Number Generator support" | |
e83872c9 | 156 | depends on HW_RANDOM && (ARCH_OMAP16XX || ARCH_OMAP2PLUS) |
fed806f4 | 157 | default HW_RANDOM |
ebc915ad MB |
158 | ---help--- |
159 | This driver provides kernel-side support for the Random Number | |
e83872c9 LV |
160 | Generator hardware found on OMAP16xx, OMAP2/3/4/5 and AM33xx/AM43xx |
161 | multimedia processors. | |
ebc915ad MB |
162 | |
163 | To compile this driver as a module, choose M here: the | |
164 | module will be called omap-rng. | |
165 | ||
166 | If unsure, say Y. | |
b8cb3448 | 167 | |
f7557dc8 DD |
168 | config HW_RANDOM_OCTEON |
169 | tristate "Octeon Random Number Generator support" | |
9ddebc46 | 170 | depends on HW_RANDOM && CAVIUM_OCTEON_SOC |
f7557dc8 DD |
171 | default HW_RANDOM |
172 | ---help--- | |
173 | This driver provides kernel-side support for the Random Number | |
174 | Generator hardware found on Octeon processors. | |
175 | ||
176 | To compile this driver as a module, choose M here: the | |
177 | module will be called octeon-rng. | |
178 | ||
179 | If unsure, say Y. | |
180 | ||
b8cb3448 OJ |
181 | config HW_RANDOM_PASEMI |
182 | tristate "PA Semi HW Random Number Generator support" | |
183 | depends on HW_RANDOM && PPC_PASEMI | |
184 | default HW_RANDOM | |
185 | ---help--- | |
186 | This driver provides kernel-side support for the Random Number | |
0d08a847 | 187 | Generator hardware found on PA Semi PWRficient SoCs. |
b8cb3448 OJ |
188 | |
189 | To compile this driver as a module, choose M here: the | |
190 | module will be called pasemi-rng. | |
191 | ||
192 | If unsure, say Y. | |
193 | ||
f7f510ec RR |
194 | config HW_RANDOM_VIRTIO |
195 | tristate "VirtIO Random Number Generator support" | |
196 | depends on HW_RANDOM && VIRTIO | |
197 | ---help--- | |
198 | This driver provides kernel-side support for the virtual Random Number | |
199 | Generator hardware. | |
200 | ||
201 | To compile this driver as a module, choose M here: the | |
202 | module will be called virtio-rng. If unsure, say N. | |
45001e92 | 203 | |
049a947c AN |
204 | config HW_RANDOM_TX4939 |
205 | tristate "TX4939 Random Number Generator support" | |
206 | depends on HW_RANDOM && SOC_TX4939 | |
207 | default HW_RANDOM | |
208 | ---help--- | |
209 | This driver provides kernel-side support for the Random Number | |
210 | Generator hardware found on TX4939 SoC. | |
211 | ||
212 | To compile this driver as a module, choose M here: the | |
213 | module will be called tx4939-rng. | |
214 | ||
215 | If unsure, say Y. | |
216 | ||
45001e92 ACA |
217 | config HW_RANDOM_MXC_RNGA |
218 | tristate "Freescale i.MX RNGA Random Number Generator" | |
219 | depends on HW_RANDOM && ARCH_HAS_RNGA | |
220 | ---help--- | |
221 | This driver provides kernel-side support for the Random Number | |
222 | Generator hardware found on Freescale i.MX processors. | |
223 | ||
224 | To compile this driver as a module, choose M here: the | |
225 | module will be called mxc-rnga. | |
226 | ||
227 | If unsure, say Y. | |
bc85b25e AR |
228 | |
229 | config HW_RANDOM_NOMADIK | |
230 | tristate "ST-Ericsson Nomadik Random Number Generator support" | |
694e33a7 | 231 | depends on HW_RANDOM && ARCH_NOMADIK |
bc85b25e AR |
232 | ---help--- |
233 | This driver provides kernel-side support for the Random Number | |
234 | Generator hardware found on ST-Ericsson SoCs (8815 and 8500). | |
235 | ||
236 | To compile this driver as a module, choose M here: the | |
237 | module will be called nomadik-rng. | |
238 | ||
239 | If unsure, say Y. | |
5efb94ee JI |
240 | |
241 | config HW_RANDOM_PICOXCELL | |
242 | tristate "Picochip picoXcell true random number generator support" | |
243 | depends on HW_RANDOM && ARCH_PICOXCELL && PICOXCELL_PC3X3 | |
244 | ---help--- | |
245 | This driver provides kernel-side support for the Random Number | |
246 | Generator hardware found on Picochip PC3x3 and later devices. | |
247 | ||
248 | To compile this driver as a module, choose M here: the | |
249 | module will be called picoxcell-rng. | |
250 | ||
251 | If unsure, say Y. | |
52527cf3 JB |
252 | |
253 | config HW_RANDOM_PPC4XX | |
254 | tristate "PowerPC 4xx generic true random number generator support" | |
255 | depends on HW_RANDOM && PPC && 4xx | |
256 | ---help--- | |
257 | This driver provides the kernel-side support for the TRNG hardware | |
258 | found in the security function of some PowerPC 4xx SoCs. | |
259 | ||
260 | To compile this driver as a module, choose M here: the | |
261 | module will be called ppc4xx-rng. | |
262 | ||
263 | If unsure, say N. | |
d805a786 AV |
264 | |
265 | config UML_RANDOM | |
266 | depends on UML | |
267 | tristate "Hardware random number generator" | |
268 | help | |
269 | This option enables UML's "hardware" random number generator. It | |
270 | attaches itself to the host's /dev/random, supplying as much entropy | |
271 | as the host has, rather than the small amount the UML gets from its | |
272 | own drivers. It registers itself as a standard hardware random number | |
273 | generator, major 10, minor 183, and the canonical device name is | |
274 | /dev/hwrng. | |
275 | The way to make use of this is to install the rng-tools package | |
276 | (check your distro, or download from | |
277 | http://sourceforge.net/projects/gkernel/). rngd periodically reads | |
278 | /dev/hwrng and injects the entropy into /dev/random. | |
649e9ea0 KY |
279 | |
280 | config HW_RANDOM_PSERIES | |
281 | tristate "pSeries HW Random Number Generator support" | |
282 | depends on HW_RANDOM && PPC64 && IBMVIO | |
283 | default HW_RANDOM | |
284 | ---help--- | |
285 | This driver provides kernel-side support for the Random Number | |
286 | Generator hardware found on POWER7+ machines and above | |
287 | ||
288 | To compile this driver as a module, choose M here: the | |
289 | module will be called pseries-rng. | |
290 | ||
291 | If unsure, say Y. | |
b329669e | 292 | |
66548e40 ME |
293 | config HW_RANDOM_POWERNV |
294 | tristate "PowerNV Random Number Generator support" | |
295 | depends on HW_RANDOM && PPC_POWERNV | |
296 | default HW_RANDOM | |
297 | ---help--- | |
298 | This is the driver for Random Number Generator hardware found | |
299 | in POWER7+ and above machines for PowerNV platform. | |
300 | ||
301 | To compile this driver as a module, choose M here: the | |
302 | module will be called powernv-rng. | |
303 | ||
304 | If unsure, say Y. | |
305 | ||
b329669e JL |
306 | config HW_RANDOM_EXYNOS |
307 | tristate "EXYNOS HW random number generator support" | |
308 | depends on HW_RANDOM && HAS_IOMEM && HAVE_CLK | |
309 | ---help--- | |
310 | This driver provides kernel-side support for the Random Number | |
311 | Generator hardware found on EXYNOS SOCs. | |
312 | ||
313 | To compile this driver as a module, choose M here: the | |
314 | module will be called exynos-rng. | |
315 | ||
316 | If unsure, say Y. | |
578b016f KY |
317 | |
318 | config HW_RANDOM_TPM | |
319 | tristate "TPM HW Random Number Generator support" | |
320 | depends on HW_RANDOM && TCG_TPM | |
321 | default HW_RANDOM | |
322 | ---help--- | |
323 | This driver provides kernel-side support for the Random Number | |
324 | Generator in the Trusted Platform Module | |
325 | ||
326 | To compile this driver as a module, choose M here: the | |
327 | module will be called tpm-rng. | |
328 | ||
329 | If unsure, say Y. |