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1# SPDX-License-Identifier: GPL-2.0-only2#3# Hardware Random Number Generator (RNG) configuration4#5 6menuconfig HW_RANDOM7 tristate "Hardware Random Number Generator Core support"8 default m9 help10 Hardware Random Number Generator Core infrastructure.11 12 To compile this driver as a module, choose M here: the13 module will be called rng-core. This provides a device14 that's usually called /dev/hwrng, and which exposes one15 of possibly several hardware random number generators.16 17 These hardware random number generators do feed into the18 kernel's random number generator entropy pool.19 20 If unsure, say Y.21 22if HW_RANDOM23 24config HW_RANDOM_TIMERIOMEM25 tristate "Timer IOMEM HW Random Number Generator support"26 depends on HAS_IOMEM27 help28 This driver provides kernel-side support for a generic Random29 Number Generator used by reading a 'dumb' iomem address that30 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: the34 module will be called timeriomem-rng.35 36 If unsure, say Y.37 38config HW_RANDOM_INTEL39 tristate "Intel HW Random Number Generator support"40 depends on (X86 || COMPILE_TEST) && PCI41 default HW_RANDOM42 help43 This driver provides kernel-side support for the Random Number44 Generator hardware found on Intel i8xx-based motherboards.45 46 To compile this driver as a module, choose M here: the47 module will be called intel-rng.48 49 If unsure, say Y.50 51config HW_RANDOM_AMD52 tristate "AMD HW Random Number Generator support"53 depends on (X86 || PPC_MAPLE || COMPILE_TEST)54 depends on PCI && HAS_IOPORT_MAP55 default HW_RANDOM56 help57 This driver provides kernel-side support for the Random Number58 Generator hardware found on AMD 76x-based motherboards.59 60 To compile this driver as a module, choose M here: the61 module will be called amd-rng.62 63 If unsure, say Y.64 65config HW_RANDOM_ATMEL66 tristate "Atmel Random Number Generator support"67 depends on (ARCH_AT91 || COMPILE_TEST)68 default HW_RANDOM69 help70 This driver provides kernel-side support for the Random Number71 Generator hardware found on Atmel AT91 devices.72 73 To compile this driver as a module, choose M here: the74 module will be called atmel-rng.75 76 If unsure, say Y.77 78config HW_RANDOM_BA43179 tristate "Silex Insight BA431 Random Number Generator support"80 depends on HAS_IOMEM81 help82 This driver provides kernel-side support for the Random Number83 Generator hardware based on Silex Insight BA431 IP.84 85 To compile this driver as a module, choose M here: the86 module will be called ba431-rng.87 88config HW_RANDOM_BCM283589 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_TEST92 default HW_RANDOM93 help94 This driver provides kernel-side support for the Random Number95 Generator hardware found on the Broadcom BCM2835 and BCM63xx SoCs.96 97 To compile this driver as a module, choose M here: the98 module will be called bcm2835-rng99 100 If unsure, say Y.101 102config HW_RANDOM_IPROC_RNG200103 tristate "Broadcom iProc/STB RNG200 support"104 depends on ARCH_BCM_IPROC || ARCH_BCM2835 || ARCH_BRCMSTB || COMPILE_TEST105 default HW_RANDOM106 help107 This driver provides kernel-side support for the RNG200108 hardware found on the Broadcom iProc and STB SoCs.109 110 To compile this driver as a module, choose M here: the111 module will be called iproc-rng200112 113 If unsure, say Y.114 115config HW_RANDOM_GEODE116 tristate "AMD Geode HW Random Number Generator support"117 depends on (X86_32 || COMPILE_TEST)118 depends on PCI119 default HW_RANDOM120 help121 This driver provides kernel-side support for the Random Number122 Generator hardware found on the AMD Geode LX.123 124 To compile this driver as a module, choose M here: the125 module will be called geode-rng.126 127 If unsure, say Y.128 129config HW_RANDOM_N2RNG130 tristate "Niagara2 Random Number Generator support"131 depends on SPARC64132 default HW_RANDOM133 help134 This driver provides kernel-side support for the Random Number135 Generator hardware found on Niagara2 cpus.136 137 To compile this driver as a module, choose M here: the138 module will be called n2-rng.139 140 If unsure, say Y.141 142config HW_RANDOM_VIA143 tristate "VIA HW Random Number Generator support"144 depends on X86145 default HW_RANDOM146 help147 This driver provides kernel-side support for the Random Number148 Generator hardware found on VIA based motherboards.149 150 To compile this driver as a module, choose M here: the151 module will be called via-rng.152 153 If unsure, say Y.154 155config HW_RANDOM_IXP4XX156 tristate "Intel IXP4xx NPU HW Pseudo-Random Number Generator support"157 depends on ARCH_IXP4XX || COMPILE_TEST158 default HW_RANDOM159 help160 This driver provides kernel-side support for the Pseudo-Random161 Number Generator hardware found on the Intel IXP45x/46x NPU.162 163 To compile this driver as a module, choose M here: the164 module will be called ixp4xx-rng.165 166 If unsure, say Y.167 168config HW_RANDOM_OMAP169 tristate "OMAP Random Number Generator support"170 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || ARCH_MVEBU || ARCH_K3 || COMPILE_TEST171 default HW_RANDOM172 help173 This driver provides kernel-side support for the Random Number174 Generator hardware found on OMAP16xx, OMAP2/3/4/5, AM33xx/AM43xx175 multimedia processors, and Marvell Armada 7k/8k SoCs.176 177 To compile this driver as a module, choose M here: the178 module will be called omap-rng.179 180 If unsure, say Y.181 182config HW_RANDOM_OMAP3_ROM183 tristate "OMAP3 ROM Random Number Generator support"184 depends on ARCH_OMAP3 || COMPILE_TEST185 default HW_RANDOM186 help187 This driver provides kernel-side support for the Random Number188 Generator hardware found on OMAP34xx processors.189 190 To compile this driver as a module, choose M here: the191 module will be called omap3-rom-rng.192 193 If unsure, say Y.194 195config HW_RANDOM_OCTEON196 tristate "Octeon Random Number Generator support"197 depends on CAVIUM_OCTEON_SOC198 default HW_RANDOM199 help200 This driver provides kernel-side support for the Random Number201 Generator hardware found on Octeon processors.202 203 To compile this driver as a module, choose M here: the204 module will be called octeon-rng.205 206 If unsure, say Y.207 208config HW_RANDOM_PASEMI209 tristate "PA Semi HW Random Number Generator support"210 depends on PPC_PASEMI || (PPC && COMPILE_TEST)211 default HW_RANDOM212 help213 This driver provides kernel-side support for the Random Number214 Generator hardware found on PA Semi PWRficient SoCs.215 216 To compile this driver as a module, choose M here: the217 module will be called pasemi-rng.218 219 If unsure, say Y.220 221config HW_RANDOM_VIRTIO222 tristate "VirtIO Random Number Generator support"223 depends on VIRTIO224 help225 This driver provides kernel-side support for the virtual Random Number226 Generator hardware.227 228 To compile this driver as a module, choose M here: the229 module will be called virtio-rng. If unsure, say N.230 231config HW_RANDOM_MXC_RNGA232 tristate "Freescale i.MX RNGA Random Number Generator"233 depends on SOC_IMX31 || COMPILE_TEST234 default HW_RANDOM235 help236 This driver provides kernel-side support for the Random Number237 Generator hardware found on Freescale i.MX processors.238 239 To compile this driver as a module, choose M here: the240 module will be called mxc-rnga.241 242 If unsure, say Y.243 244config HW_RANDOM_IMX_RNGC245 tristate "Freescale i.MX RNGC Random Number Generator"246 depends on HAS_IOMEM247 depends on SOC_IMX25 || SOC_IMX6SL || SOC_IMX6SLL || SOC_IMX6UL || COMPILE_TEST248 default HW_RANDOM249 help250 This driver provides kernel-side support for the Random Number251 Generator Version C hardware found on some Freescale i.MX252 processors. Version B is also supported by this driver.253 254 To compile this driver as a module, choose M here: the255 module will be called imx-rngc.256 257 If unsure, say Y.258 259config HW_RANDOM_INGENIC_RNG260 tristate "Ingenic Random Number Generator support"261 depends on MACH_JZ4780 || MACH_X1000 || COMPILE_TEST262 default HW_RANDOM263 help264 This driver provides kernel-side support for the Random Number Generator265 hardware found in ingenic JZ4780 and X1000 SoC. MIPS Creator CI20 uses266 JZ4780 SoC, YSH & ATIL CU1000-Neo uses X1000 SoC.267 268 To compile this driver as a module, choose M here: the269 module will be called ingenic-rng.270 271 If unsure, say Y.272 273config HW_RANDOM_INGENIC_TRNG274 tristate "Ingenic True Random Number Generator support"275 depends on MACH_X1830 || COMPILE_TEST276 default HW_RANDOM277 help278 This driver provides kernel-side support for the True Random Number Generator279 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: the282 module will be called ingenic-trng.283 284 If unsure, say Y.285 286config HW_RANDOM_NOMADIK287 tristate "ST-Ericsson Nomadik Random Number Generator support"288 depends on ARCH_NOMADIK || COMPILE_TEST289 default HW_RANDOM290 help291 This driver provides kernel-side support for the Random Number292 Generator hardware found on ST-Ericsson SoCs (8815 and 8500).293 294 To compile this driver as a module, choose M here: the295 module will be called nomadik-rng.296 297 If unsure, say Y.298 299config HW_RANDOM_PSERIES300 tristate "pSeries HW Random Number Generator support"301 depends on PPC64 && IBMVIO302 default HW_RANDOM303 help304 This driver provides kernel-side support for the Random Number305 Generator hardware found on POWER7+ machines and above306 307 To compile this driver as a module, choose M here: the308 module will be called pseries-rng.309 310 If unsure, say Y.311 312config HW_RANDOM_POWERNV313 tristate "PowerNV Random Number Generator support"314 depends on PPC_POWERNV315 default HW_RANDOM316 help317 This is the driver for Random Number Generator hardware found318 in POWER7+ and above machines for PowerNV platform.319 320 To compile this driver as a module, choose M here: the321 module will be called powernv-rng.322 323 If unsure, say Y.324 325config HW_RANDOM_HISI326 tristate "Hisilicon Random Number Generator support"327 depends on ARCH_HISI || COMPILE_TEST328 default HW_RANDOM329 help330 This driver provides kernel-side support for the Random Number331 Generator hardware found on Hisilicon Hip04 and Hip05 SoC.332 333 To compile this driver as a module, choose M here: the334 module will be called hisi-rng.335 336 If unsure, say Y.337 338config HW_RANDOM_HISTB339 tristate "Hisilicon STB Random Number Generator support"340 depends on ARCH_HISI || COMPILE_TEST341 default ARCH_HISI342 help343 This driver provides kernel-side support for the Random Number344 Generator hardware found on Hisilicon Hi37xx SoC.345 346 To compile this driver as a module, choose M here: the347 module will be called histb-rng.348 349config HW_RANDOM_ST350 tristate "ST Microelectronics HW Random Number Generator support"351 depends on ARCH_STI || COMPILE_TEST352 help353 This driver provides kernel-side support for the Random Number354 Generator hardware found on STi series of SoCs.355 356 To compile this driver as a module, choose M here: the357 module will be called st-rng.358 359config HW_RANDOM_XGENE360 tristate "APM X-Gene True Random Number Generator (TRNG) support"361 depends on ARCH_XGENE || COMPILE_TEST362 default HW_RANDOM363 help364 This driver provides kernel-side support for the Random Number365 Generator hardware found on APM X-Gene SoC.366 367 To compile this driver as a module, choose M here: the368 module will be called xgene_rng.369 370 If unsure, say Y.371 372config HW_RANDOM_STM32373 tristate "STMicroelectronics STM32 random number generator"374 depends on ARCH_STM32 || COMPILE_TEST375 depends on HAS_IOMEM376 default HW_RANDOM377 help378 This driver provides kernel-side support for the Random Number379 Generator hardware found on STM32 microcontrollers.380 381 To compile this driver as a module, choose M here: the382 module will be called stm32-rng.383 384 If unsure, say N.385 386config HW_RANDOM_PIC32387 tristate "Microchip PIC32 Random Number Generator support"388 depends on MACH_PIC32 || COMPILE_TEST389 default HW_RANDOM if MACH_PIC32390 help391 This driver provides kernel-side support for the Random Number392 Generator hardware found on a PIC32.393 394 To compile this driver as a module, choose M here. the395 module will be called pic32-rng.396 397 If unsure, say Y.398 399config HW_RANDOM_POLARFIRE_SOC400 tristate "Microchip PolarFire SoC Random Number Generator support"401 depends on HW_RANDOM && POLARFIRE_SOC_SYS_CTRL402 help403 This driver provides kernel-side support for the Random Number404 Generator hardware found on PolarFire SoC (MPFS).405 406 To compile this driver as a module, choose M here. The407 module will be called mfps_rng.408 409 If unsure, say N.410 411 412config HW_RANDOM_MESON413 tristate "Amlogic Meson Random Number Generator support"414 depends on ARCH_MESON || COMPILE_TEST415 depends on HAS_IOMEM && OF416 default HW_RANDOM if ARCH_MESON417 help418 This driver provides kernel-side support for the Random Number419 Generator hardware found on Amlogic Meson SoCs.420 421 To compile this driver as a module, choose M here. the422 module will be called meson-rng.423 424 If unsure, say Y.425 426config HW_RANDOM_CAVIUM427 tristate "Cavium ThunderX Random Number Generator support"428 depends on PCI429 depends on ARCH_THUNDER || (ARM64 && COMPILE_TEST)430 default HW_RANDOM431 help432 This driver provides kernel-side support for the Random Number433 Generator hardware found on Cavium SoCs.434 435 To compile this driver as a module, choose M here: the436 module will be called cavium_rng.437 438 If unsure, say Y.439 440config HW_RANDOM_MTK441 tristate "Mediatek Random Number Generator support"442 depends on ARCH_MEDIATEK || COMPILE_TEST443 depends on HAS_IOMEM && OF444 default HW_RANDOM if ARCH_MEDIATEK445 help446 This driver provides kernel-side support for the Random Number447 Generator hardware found on Mediatek SoCs.448 449 To compile this driver as a module, choose M here. the450 module will be called mtk-rng.451 452 If unsure, say Y.453 454config HW_RANDOM_S390455 tristate "S390 True Random Number Generator support"456 depends on S390457 default HW_RANDOM458 help459 This driver provides kernel-side support for the True460 Random Number Generator available as CPACF extension461 on modern s390 hardware platforms.462 463 To compile this driver as a module, choose M here: the464 module will be called s390-trng.465 466 If unsure, say Y.467 468config HW_RANDOM_EXYNOS469 tristate "Samsung Exynos True Random Number Generator support"470 depends on ARCH_EXYNOS || COMPILE_TEST471 depends on HAS_IOMEM472 default HW_RANDOM if ARCH_EXYNOS473 help474 This driver provides support for the True Random Number475 Generator available in Exynos SoCs.476 477 To compile this driver as a module, choose M here: the module478 will be called exynos-trng.479 480 If unsure, say Y.481 482config HW_RANDOM_OPTEE483 tristate "OP-TEE based Random Number Generator support"484 depends on OPTEE485 default HW_RANDOM486 help487 This driver provides support for OP-TEE based Random Number488 Generator on ARM SoCs where hardware entropy sources are not489 accessible to normal world (Linux).490 491 To compile this driver as a module, choose M here: the module492 will be called optee-rng.493 494 If unsure, say Y.495 496config HW_RANDOM_NPCM497 tristate "NPCM Random Number Generator support"498 depends on ARCH_NPCM || COMPILE_TEST499 depends on HAS_IOMEM500 default HW_RANDOM if ARCH_NPCM501 help502 This driver provides support for the Random Number503 Generator hardware available in Nuvoton NPCM SoCs.504 505 To compile this driver as a module, choose M here: the506 module will be called npcm-rng.507 508 If unsure, say Y.509 510config HW_RANDOM_KEYSTONE511 depends on ARCH_KEYSTONE || COMPILE_TEST512 depends on HAS_IOMEM && OF513 default HW_RANDOM514 tristate "TI Keystone NETCP SA Hardware random number generator"515 help516 This option enables Keystone's hardware random generator.517 518config HW_RANDOM_CCTRNG519 tristate "Arm CryptoCell True Random Number Generator support"520 depends on HAS_IOMEM && OF521 help522 Say 'Y' to enable the True Random Number Generator driver for the523 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 Execution526 Environment is not used.527 Choose 'M' to compile this driver as a module. The module528 will be called cctrng.529 If unsure, say 'N'.530 531config HW_RANDOM_XIPHERA532 tristate "Xiphera FPGA based True Random Number Generator support"533 depends on HAS_IOMEM534 help535 This driver provides kernel-side support for Xiphera True Random536 Number Generator Intellectual Property Core.537 538 To compile this driver as a module, choose M here: the539 module will be called xiphera-trng.540 541config HW_RANDOM_ARM_SMCCC_TRNG542 tristate "Arm SMCCC TRNG firmware interface support"543 depends on HAVE_ARM_SMCCC_DISCOVERY544 default HW_RANDOM545 help546 Say 'Y' to enable the True Random Number Generator driver using547 the Arm SMCCC TRNG firmware interface. This reads entropy from548 higher exception levels (firmware, hypervisor). Uses SMCCC for549 communicating with the firmware:550 https://developer.arm.com/documentation/den0098/latest/551 552 To compile this driver as a module, choose M here: the553 module will be called arm_smccc_trng.554 555config HW_RANDOM_CN10K556 tristate "Marvell CN10K Random Number Generator support"557 depends on HW_RANDOM && PCI && (ARM64 || (64BIT && COMPILE_TEST))558 default HW_RANDOM if ARCH_THUNDER559 help560 This driver provides support for the True Random Number561 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_JH7110567 tristate "StarFive JH7110 Random Number Generator support"568 depends on SOC_STARFIVE || COMPILE_TEST569 help570 This driver provides support for the True Random Number571 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 576config HW_RANDOM_ROCKCHIP577 tristate "Rockchip True Random Number Generator"578 depends on HW_RANDOM && (ARCH_ROCKCHIP || COMPILE_TEST)579 depends on HAS_IOMEM580 default HW_RANDOM581 help582 This driver provides kernel-side support for the True Random Number583 Generator hardware found on some Rockchip SoC like RK3566 or RK3568.584 585 To compile this driver as a module, choose M here: the586 module will be called rockchip-rng.587 588 If unsure, say Y.589 590endif # HW_RANDOM591 592config UML_RANDOM593 depends on UML594 select HW_RANDOM595 tristate "UML Random Number Generator support"596 help597 This option enables UML's "hardware" random number generator. It598 attaches itself to the host's /dev/random, supplying as much entropy599 as the host has, rather than the small amount the UML gets from its600 own drivers. It registers itself as a rng-core driver thus providing601 a device which is usually called /dev/hwrng. This hardware random602 number generator does feed into the kernel's random number generator603 entropy pool.604 605 If unsure, say Y.606