Skip to content

rp23xx: add TRNG driver (hardware /dev/random and /dev/urandom) #19400

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
ricardgb wants to merge 1 commit into
base: master
Choose a base branch
from
+388 −0
Open

rp23xx: add TRNG driver (hardware /dev/random and /dev/urandom) #19400

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
11 changes: 11 additions & 0 deletions arch/arm/src/rp23xx/Kconfig
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -811,6 +811,17 @@ endif # ADC

endif # RP23XX_ADC

config RP23XX_TRNG
bool "Enable TRNG (hardware true random number generator)"
default n
select ARCH_HAVE_RNG
---help---
Enable the RP2350 on-chip true random number generator. It serves
conditioned hardware entropy as /dev/random and /dev/urandom
(overriding the software /dev/urandom), which backs getrandom() and
therefore the mbedtls entropy source. Enable this for any workload
that mints keys or signs on the device.

#####################################################################
# CLK_GPOUT Configuration
#####################################################################
Expand Down
4 changes: 4 additions & 0 deletions arch/arm/src/rp23xx/Make.defs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -68,6 +68,10 @@ ifeq ($(CONFIG_RP23XX_I2C_SLAVE),y)
CHIP_CSRCS += rp23xx_i2c_slave.c
endif

ifeq ($(CONFIG_RP23XX_TRNG),y)
CHIP_CSRCS += rp23xx_rng.c
endif

ifeq ($(CONFIG_RP23XX_I2S),y)
CHIP_CSRCS += rp23xx_i2s.c
CHIP_CSRCS += rp23xx_i2s_pio.c
Expand Down
Loading
Loading