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In this case, the NPCM RNG driver also provides some of the functions
that are implemented in the generic LIB_RAND file, so only allow this to
be built when that is disabled. The exynos RNG driver depends on ARM
SMCCC calls and so cannot be built outside of that. Express these
requirements in Kconfig as well.
Signed-off-by: Tom Rini <[email protected]>
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The RK3576 SoC contains a RKRNG block that can be used to generate
random numbers using the rockchip_rng driver.
Add compatible for RK3576 to support random numbers:
=> rng list
RNG #0 - rng@2a410000
=> rng
00000000: 36 dd ab 98 ec fb fe d1 cf 36 b3 e1 9b 3d 00 90 6........6...=..
00000010: f5 84 de 75 6b 27 48 9e 13 62 12 6c 50 ca 47 1a ...uk'H..b.lP.G.
00000020: b3 4d fc 43 c5 b5 2d be 07 27 03 26 bb 69 61 2a .M.C..-..'.&.ia*
00000030: 6f 70 01 83 4e ce 91 7a 5a 6c 7c 00 43 87 3e c5 op..N..zZl|.C.>.
Signed-off-by: Jonas Karlman <[email protected]>
Reviewed-by: Kever Yang <[email protected]>
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Add support for rkrng variant, used by e.g. RK3528 and RK3576.
Imported from vendor U-Boot linux-6.1-stan-rkr5 tag with minor
adjustments for mainline.
Signed-off-by: Lin Jinhan <[email protected]>
Signed-off-by: Jonas Karlman <[email protected]>
Reviewed-by: Kever Yang <[email protected]>
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Linux commit 6ee0b9ad3995 ("arm64: dts: rockchip: Add rng node to
RK3588") merged for v6.15-rc1 add a proper rng node to the device tree.
The compatible used differs compared to what U-Boot is currently using.
Replace the old trngv1 compatible with the dts/upstream compatible in
the rng driver and remove the old rng node compatible override from SoC
u-boot.dtsi to keep rng working after the driver change.
Signed-off-by: Jonas Karlman <[email protected]>
Reviewed-by: Kever Yang <[email protected]>
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Linux commit afeccc408496 ("arm64: dts: rockchip: add DT entry for RNG
to RK356x") merged for v6.12-rc1 add a proper rng node to the SoC DT.
The compatible used differs compared to what U-Boot is currently using.
Add support for the rk3568-rng used in upstream Linux. Support for the
cryptov2-rng compatible is still kept because PX30/RK3326 and RK3308 are
still using it.
Signed-off-by: Jonas Karlman <[email protected]>
Reviewed-by: Kever Yang <[email protected]>
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This is how the kernel does it. APQ8016E TRM also states that this clock
can be turned off when no random numbers are needed.
Signed-off-by: Sam Day <[email protected]>
Reviewed-by: Neil Armstrong <[email protected]>
Reviewed-by: Caleb Connolly <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Caleb Connolly <[email protected]>
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msm_rng_enable is supposed to skip writing to LFSR_CFG + CONFIG
registers in the PRNG_ block if PRNG_CONFIG_HW_ENABLE is already set.
The logic to test for this was inverted.
Without this fix, the driver was causing SError aborts on my MSM8916
device. Stephan Gerhold suggested this was probably because TZ has
marked this as a protected register, since it would also be using it for
RNG.
Fixes: 033ec636fcb ("rng: Add Qualcomm MSM PRNG driver")
Suggested-by: Stephan Gerhold <[email protected]>
Reviewed-by: Neil Armstrong <[email protected]>
Signed-off-by: Sam Day <[email protected]>
Reviewed-by: Caleb Connolly <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Caleb Connolly <[email protected]>
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On recent Qualcomm SoCs, the hardware random generator
is initialized and handled by the firmware because shared
between different Execution Environments (EE), thus the
initialization step should be skipped.
Also support the newer "TRNG" found on SM8550 and newer
SoCs that has inbuilt NIST SP800 90B compliant entropic source.
Signed-off-by: Neil Armstrong <[email protected]>
Tested-by: Alexey Minnekhanov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Caleb Connolly <[email protected]>
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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 <[email protected]>
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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 <[email protected]>
Signed-off-by: Minkyu Kang <[email protected]>
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As described in the document SMC Calling Convention (ARM DEN 0028 1.5 F),
section 7 "Arm Architecture Calls", the SMC call SMCCC_ARCH_FEATURES is
not expected to support the function ID ARM_SMCCC_TRNG_VERSION. Trusted
Firmware-A follows up the specification in its implementation.
This commit removes the invocation to avoid the failure - which is a
wrong calling in U-boot. The later code invokes ARM_SMCCC_TRNG_VERSION
for retrieving the TRNG version, except it can read back the version
number, it also can be used to detect whether the TRNG is supported or
not.
Signed-off-by: Leo Yan <[email protected]>
Reviewed-by: Weizhao Ouyang <[email protected]>
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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 <[email protected]>
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Convert UTF-8 chars to ASCII in cases where make sense. No Copyright or
names are converted.
Signed-off-by: Michal Simek <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
Acked-by: Marek Behún <[email protected]>
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https://source.denx.de/u-boot/custodians/u-boot-rockchip into next
Please pull the updates for rockchip platform:
- Add board: rk3588 Generic, Cool Pi CM5, Theobroma-Systems RK3588 Jaguar SBC,
Toybrick TB-RK3588X;
rk3588s Cool Pi 4B;
rk3566 Pine64 PineTab2;
- Add saradc v2 support;
- Add PMIC RK806 support;
- rk3588 disable force_jtag by default;
- Migrate to use IO-domain driver for all boards;
- Use common bss and stack addresses for rk33xx and rk35xx boards;
- Other updates for driver, config and dts;
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Replace the rockchip,cryptov1-rng compatible with compatibles used in
the linux device tree for RK3288, RK3328 and RK3399 to ease sync of SoC
device tree from linux.
Signed-off-by: Jonas Karlman <[email protected]>
Reviewed-by: Heinrich Schuchardt <[email protected]>
Reviewed-by: Kever Yang <[email protected]>
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Fix a SMCCC TRNG null pointer crash due to a failed smccc feature
binding.
Fixes: 53355bb86c25 ("drivers: rng: add smccc trng driver")
Reviewed-by: Heinrich Schuchardt <[email protected]>
Signed-off-by: Weizhao Ouyang <[email protected]>
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The different macros use writel which is defined in asm/io.h, so let's
include the header so users of hardware.h do not need to include
asm/io.h as well.
While at it, remove asm/io.h includes wherever
asm/arch-rockchip/hardware.h is included already.
Cc: Quentin Schulz <[email protected]>
Reviewed-by: Kever Yang <[email protected]>
Signed-off-by: Quentin Schulz <[email protected]>
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Prepare v2024.04-rc4
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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 <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
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Usage of common.h is deprecated.
* Remove common.h from RNG drivers.
* Sort includes.
* Add time.h to sandbox driver.
* Add linux/types.h to rng.h to provide size_t.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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The existence of devices should be checked in the bind method and not in
the probe method. Adjust the RISC-V Zkr RNG driver accordingly.
Use ENOENT (and not ENODEV) to signal that the device is not available.
Fixes: ceec977ba1a9 ("rng: Provide a RNG based on the RISC-V Zkr ISA extension")
Reported-by: Andre Przywara <[email protected]>
Signed-off-by: Heinrich Schuchardt <[email protected]>
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In different parts of our code we assume that the first RNG device is the
one to be used. Therefore it is preferable to detect the availability of
the RNDR register already in the bind method.
For signaling the non-existence of a device the driver model requires using
ENOENT (and not ENODEV).
Fixes: 31565bb0aa2d ("driver: rng: Add DM_RNG interface for ARMv8.5 RNDR registers")
Signed-off-by: Heinrich Schuchardt <[email protected]>
Reviewed-by: Andre Przywara <[email protected]>
Tested-by: Andre Przywara <[email protected]>
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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 <[email protected]>
Reviewed-by: Leo Yu-Chi Liang <[email protected]>
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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 <[email protected]>
Reviewed-by: Leo Yu-Chi Liang <[email protected]>
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For some Amlogic SOC's, mechanism to obtain random number
has been changed. For example, S4 now uses status bit waiting algo.
Signed-off-by: Alexey Romanov <[email protected]>
Reviewed-by: Neil Armstrong <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Neil Armstrong <[email protected]>
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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 <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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STM32 RNG configuration should best fit the requirements of the
platform. Therefore, put a platform-specific RNG configuration
field in the platform data. Default RNG configuration for STM32MP13
is the NIST certified configuration [1].
While there, fix and the RNG init sequence to support all RNG
versions.
[1] https://csrc.nist.gov/projects/cryptographic-module-validation-program/entropy-validations/certificate/53
Signed-off-by: Gatien Chevallier <[email protected]>
Reviewed-by: Patrick Delaunay <[email protected]>
Reviewed-by: Patrice Chotard <[email protected]>
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Seed errors can occur when using the hardware RNG. Implement the
sequences to handle them. This avoids irrecoverable RNG state.
Try to conceal seed errors when possible. If, despite the error
concealing tries, a seed error is still present, then return an error.
A clock error does not compromise the hardware block and data can
still be read from RNG_DR. Just warn that the RNG clock is too slow
and clear RNG_SR.
Signed-off-by: Gatien Chevallier <[email protected]>
Reviewed-by: Patrick Delaunay <[email protected]>
Reviewed-by: Patrice Chotard <[email protected]>
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In order to ensure a good RNG quality and compatibility with
certified RNG configuration, add RNG clock frequency restraint.
Signed-off-by: Gatien Chevallier <[email protected]>
Reviewed-by: Patrick Delaunay <[email protected]>
Reviewed-by: Patrice Chotard <[email protected]>
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RNG clock error detection is now enabled if the "clock-error-detect"
property is set in the device tree.
Signed-off-by: Gatien Chevallier <[email protected]>
Reviewed-by: Patrick Delaunay <[email protected]>
Reviewed-by: Patrice Chotard <[email protected]>
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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 <[email protected]>
Reviewed-by: Grzegorz Szymaszek <[email protected]>
Reviewed-by: Patrick Delaunay <[email protected]>
Reviewed-by: Patrice Chotard <[email protected]>
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This adds support for the TRNG found in the RK3588 SoC to the
rockchip_rng driver so that it can be used for things such as
seeding randomness to Linux.
Changes in V3:
- Moved notes from commit to cover letter.
- Added Reviewed-By tag.
Changes in V2:
- Modified Kconfig to note that the Rockchip RNG driver supports all
versions of the hardware (v1, v2, and the trng in the rk3588).
Signed-off-by: Lin Jinhan <[email protected]>
Signed-off-by: Chris Morgan <[email protected]>
Reviewed-by: Kever Yang <[email protected]>
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Changes optee_rng driver to register itself has a OP-TEE service so
that a device is bound for the driver when OP-TEE enumerates the
PTA RNG service.
Cc: Sughosh Ganu <[email protected]>
Cc: Patrick Delaunay <[email protected]>
Signed-off-by: Etienne Carriere <[email protected]>
Reviewed-by: Patrick Delaunay <[email protected]>
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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 <[email protected]>
Reviewed-by: Ilias Apalodimas <[email protected]>
Signed-off-by: Ilias Apalodimas <[email protected]>
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New IP adds a conditional reset that impact the clock
error management. It is now linked to a new compatible.
Signed-off-by: Lionel Debieve <[email protected]>
Signed-off-by: Patrick Delaunay <[email protected]>
Reviewed-by: Patrice Chotard <[email protected]>
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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 <[email protected]>
Cc: Heinrich Schuchardt <[email protected]>
Signed-off-by: Etienne Carriere <[email protected]>
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Add Nuvoton BMC NPCM750 rng driver.
Signed-off-by: Jim Liu <[email protected]>
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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 <[email protected]>
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This adds a helper function for clk_get_by_name in cases where the clock is
optional. Hopefully this helps point driver writers in the right direction.
Also convert some existing users.
Signed-off-by: Sean Anderson <[email protected]>
Reviewed-by: Neil Armstrong <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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default n/no doesn't need to be specified. It is default option anyway.
Signed-off-by: Michal Simek <[email protected]>
[trini: Rework FSP_USE_UPD portion]
Signed-off-by: Tom Rini <[email protected]>
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Define LOG_CATEGORY for all uclass to allow filtering with
log command.
Signed-off-by: Patrick Delaunay <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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On the RPi4 armv7 build we have the situationt that we use physical
addresses of 64 bit, while the virtual addresses are 32 bit.
Remap the base address in this scenario via map_physmem().
Signed-off-by: Matthias Brugger <[email protected]>
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In 8a8d24bd Simon dropped data from all the various _platdata calls
but it seems this wasn't caught for the RNG200 driver from when it
was posted to merged. This fixes that issue.
Fixes: 537f0018 (rng: Add iProc RNG200 driver)
Signed-off-by: Peter Robinson <[email protected]>
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We find the iProc RNG200 in the Raspberry Pi 4. Add it to all it's
config so that it can be used.
Signed-off-by: Matthias Brugger <[email protected]>
Tested-by: Peter Robinson <[email protected]>
[mb: drop rpi_4_32b_defconfig]
Signed-off-by: Matthias Brugger <[email protected]>
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Add support for random number generator RNG200.
This is for example found on RPi4.
Signed-off-by: Matthias Brugger <[email protected]>
Tested-by: Heinrich Schuchardt <[email protected]>
Tested-by: Peter Robinson <[email protected]>
[mb: adapt to new struct driver memebers]
Signed-off-by: Matthias Brugger <[email protected]>
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Try to maintain some consistency between these variables by using _plat as
a suffix for them.
Signed-off-by: Simon Glass <[email protected]>
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This name is far too long. Rename it to remove the 'data' bits. This makes
it consistent with the platdata->plat rename.
Signed-off-by: Simon Glass <[email protected]>
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Rename this to be consistent with the change from 'platdata'.
Signed-off-by: Simon Glass <[email protected]>
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We use 'priv' for private data but often use 'platdata' for platform data.
We can't really use 'pdata' since that is ambiguous (it could mean private
or platform data).
Rename some of the latter variables to end with 'plat' for consistency.
Signed-off-by: Simon Glass <[email protected]>
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