nuttx/arch
Marco Casaroli 52e84e0c0a arch/arm/rp23xx: Add hardware TRNG driver for /dev/random.
Add a driver for the rp2350 hardware true random number generator.

Enabling CONFIG_RP23XX_RNG selects ARCH_HAVE_RNG and builds the driver,
which registers /dev/random (and /dev/urandom when CONFIG_DEV_URANDOM
selects the architecture source, DEV_URANDOM_ARCH).  Each read enables
the entropy source, waits for a valid 192-bit entropy holding register
(EHR) sample, reads the six 32-bit EHR words, and repeats until the
request is satisfied.

Document the TRNG on the rp23xx platform page.

Assisted-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Signed-off-by: Marco Casaroli <marco.casaroli@gmail.com>
2026-07-25 15:06:56 +08:00
..
arm arch/arm/rp23xx: Add hardware TRNG driver for /dev/random. 2026-07-25 15:06:56 +08:00
arm64 fs/hostfs: Return ENOTTY for unsupported ioctl 2026-07-23 08:30:29 +02:00
avr arch/avr/src/avrdx/avrdx_delay: add custom up_udelay function 2026-06-12 09:55:11 -04:00
ceva arch/ceva: Replace board_app_initialize 2026-05-02 18:36:46 +08:00
dummy
hc style: fix checkpatch issues after debug.h move 2026-04-07 07:50:06 -03:00
mips arch/mips/jz4780: Add USB host and display controller drivers 2026-07-24 12:17:35 +08:00
misoc include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
or1k include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
renesas drivers/efuse/efuse: Drivers Registered With World Write Permissions(Part 1) 2026-07-13 12:08:01 +02:00
risc-v fs/hostfs: Return ENOTTY for unsupported ioctl 2026-07-23 08:30:29 +02:00
sim arch/sim: Add PTY mode for simulated UART 2026-07-25 15:03:56 +08:00
sparc drivers: Fix comment typos — 'Pubic' → 'Public' across drivers and headers. 2026-07-02 13:29:48 +08:00
tricore arch/tricore: Add hardware debug breakpoint and watchpoint support. 2026-05-22 15:38:36 +08:00
x86 drivers/efuse/efuse: Drivers Registered With World Write Permissions(Part 1) 2026-07-13 12:08:01 +02:00
x86_64 !include/fcntl.h: align open flags with Linux values 2026-06-30 13:43:44 +08:00
xtensa fs/hostfs: Return ENOTTY for unsupported ioctl 2026-07-23 08:30:29 +02:00
z16 include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
z80 style: fix checkpatch issues after debug.h move 2026-04-07 07:50:06 -03:00
CMakeLists.txt
Kconfig sched/clock/clock_delay: added config flag to remove weak up_udelay 2026-06-12 09:55:11 -04:00