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path: root/drivers/rng/Makefile
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2024-10-11global: Rename SPL_TPL_ to PHASE_Simon Glass
Use PHASE_ as the symbol to select a particular XPL build. This means that SPL_TPL_ is no-longer set. Update the comment in bootstage to refer to this symbol, instead of SPL_ Signed-off-by: Simon Glass <sjg@chromium.org>
2024-07-24rng: Add Exynos TRNG driverSam Protsenko
Add True Random Number Generator (TRNG) driver for Exynos chips. This implementation is heavily based on Linux kernel's counterpart [1]. It also follows upstream dt-bindings [2]. TRNG block is usually a part of SSS (Security Sub System) IP-core on Exynos chips. Because SSS access on Exynos850 is protected by TZPC (TrustZone Protection Control), it's not possible to read/write TRNG registers from U-Boot, as it's running in EL1 mode. Instead, the corresponding SMC calls should be used to make the secure software running in EL3 mode access it for us. Those SMC calls are handled by LDFW (Loadable Firmware), which has to be loaded first. For example, for E850-96 board it's done in its board_init(), so by the time RNG capabilities are needed the LDFW should be already loaded and TRNG should be functional. [1] drivers/char/hw_random/exynos-trng.c [2] dts/upstream/Bindings/rng/samsung,exynos5250-trng.yaml Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2024-05-05rng: Introduce SPL_DM_RNGMarek Vasut
Add SPL variant of DM_RNG so that the DM_RNG can be disabled in SPL if necessary. This may be necessary due to e.g. size constraints of the SPL. Signed-off-by: Marek Vasut <marex@denx.de>
2024-03-05rng: Add Turris Mox rTWM RNG driverMax Resch
A RNG driver for Armada 3720 boards running the Turris Mox rWTM firmware from CZ.NIC in the secure processor. Signed-off-by: Max Resch <resch.max@gmail.com> Reviewed-by: Stefan Roese <sr@denx.de>
2023-11-02rng: Add StarFive JH7110 RNG driverChanho Park
Adds to support JH7110 TRNG driver which is based on linux kernel's jh7110-trng.c. This can support to generate 256-bit random numbers and 128-bit but this makes 256-bit default for convenience. Signed-off-by: Chanho Park <chanho61.park@samsung.com> Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
2023-11-02rng: Provide a RNG based on the RISC-V Zkr ISA extensionHeinrich Schuchardt
The Zkr ISA extension (ratified Nov 2021) introduced the seed CSR. It provides an interface to a physical entropy source. A RNG driver based on the seed CSR is provided. It depends on mseccfg.sseed being set in the SBI firmware. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
2023-10-11driver: rng: Add DM_RNG interface for ARMv8.5 RNDR registersAndre Przywara
The ARMv8.5 architecture extension defines architectural RNDR/RNDRRS system registers, that provide 64 bits worth of randomness on every read. Since it's an extension, and implementing it is optional, there is a field in the ID_AA64ISAR0_EL1 ID register to query the availability of those registers. Add a UCLASS_RNG driver that returns entropy via repeated reads from those system registers, if the extension is implemented. The driver always binds, but checks the availability in the probe() routine. This helps systems which suffer from low boot entropy, since U-Boot can provide entropy via the generic UEFI entropy gathering protocol to the OS, at an early stage. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2023-10-04rng: stm32: rename STM32 RNG driverGatien Chevallier
Rename the RNG driver as it is usable by other STM32 platforms than the STM32MP1x ones. Rename CONFIG_RNG_STM32MP1 to CONFIG_RNG_STM32 Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com> Reviewed-by: Grzegorz Szymaszek <gszymaszek@short.pl> Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
2022-08-02tpm: rng: Add driver model interface for TPM RNG deviceSughosh Ganu
The TPM device has a builtin random number generator(RNG) functionality. Expose the RNG functions of the TPM device to the driver model so that they can be used by the EFI_RNG_PROTOCOL if the protocol is installed. Also change the function arguments and return type of the random number functions to comply with the driver model api. Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org> Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
2022-06-23drivers: rng: add smccc trng driverEtienne Carriere
Adds random number generator driver using Arm SMCCC TRNG interface to get entropy bytes from secure monitor. The driver registers as an Arm SMCCC feature driver to allow PSCI driver to bind a device for when secure monitor exposes RNG support from Arm SMCCC TRNG interface. Cc: Sughosh Ganu <sughosh.ganu@linaro.org> Cc: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
2022-06-10rng: nuvoton: Add NPCM7xx rng driverJim Liu
Add Nuvoton BMC NPCM750 rng driver. Signed-off-by: Jim Liu <JJLIU0@nuvoton.com>
2022-04-11rng: add OP-TEE based Random Number GeneratorPatrick Delaunay
Add driver for OP-TEE based Random Number Generator on ARM SoCs where hardware entropy sources are not accessible to normal world and the RNG service is provided by a HWRNG Trusted Application (TA). This driver is based on the linux driver: char/hw_random/optee-rng.c Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
2021-02-16rng: Add iProc RNG200 driverMatthias Brugger
Add support for random number generator RNG200. This is for example found on RPi4. Signed-off-by: Matthias Brugger <mbrugger@suse.com> Tested-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Tested-by: Peter Robinson <pbrobinson@gmail.com> [mb: adapt to new struct driver memebers] Signed-off-by: Matthias Brugger <mbrugger@suse.com>
2020-10-22rng: Add Qualcomm MSM PRNG driverRobert Marko
Add support for the hardware pseudo random number generator found in Qualcomm SoC-s. Signed-off-by: Robert Marko <robert.marko@sartura.hr> Cc: Luka Perkov <luka.perkov@sartura.hr>
2020-04-29rockchip: rng: Add a driver for random number generator(rng) deviceLin Jinhan
Add a driver for the rng device found on rockchip platforms. Support rng module of crypto v1 and crypto v2. Signed-off-by: Lin Jinhan <troy.lin@rock-chips.com> Tested-by: Peter Robinson <pbrobinson@gmail.com> Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2020-03-11drivers/rng: add Amlogic hardware RNG driverHeinrich Schuchardt
Add support for the hardware random number generator of Amlogic SOCs. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Sughosh Ganu <sughosh.ganu@linaro.org>
2020-01-07sandbox: rng: Add a random number generator(rng) driverSughosh Ganu
Add a sandbox driver for random number generation. Mostly aimed at providing a unit test for rng uclass. Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org> Reviewed-by: Patrice Chotard <patrice.chotard@st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-01-07stm32mp1: rng: Add a driver for random number generator(rng) deviceSughosh Ganu
Add a driver for the rng device found on stm32mp1 platforms. The driver provides a routine for reading the random number seed from the hardware device. Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org> Reviewed-by: Patrice Chotard <patrice.chotard@st.com> Acked-by: Patrick Delaunay <patrick.delaunay@st.com> Remove a superfluous blank line Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2020-01-07dm: rng: Add random number generator(rng) uclassSughosh Ganu
Add a uclass for reading a random number seed from a random number generator device. Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org> Reviewed-by: Patrice Chotard <patrice.chotard@st.com> Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
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