This patch series enables support for the HWRNG included on the Raspberry
Pi 4. It is simply a rebase of Stefan's branch [1]. I went ahead and
tested this out on a Pi 4. Prior to this patch series, attempting to use
the hwrng gives:
$ head -c 2 /dev/hwrng
head: /dev/hwrng: Input/output error
After this series, the same command gives two random bytes.
Changes in v3:
- drop interrupts from bcm2711 rng node
- move bcm283x rng into bcm2835-common.dtsi
- add reviewed-by tag
- separated out patch 3 into two parts
Changes in v2:
- specify the correct size for the region in the dts, refactor bcm283x rng
---
Stefan Wahren (2):
dt-bindings: rng: add BCM2711 RNG compatible
hwrng: iproc-rng200: Add support for BCM2711
Stephen Brennan (2):
ARM: dts: bcm2835: Move rng definition to common location
ARM: dts: bcm2711: Enable HWRNG support
.../devicetree/bindings/rng/brcm,iproc-rng200.txt | 1 +
arch/arm/boot/dts/bcm2711.dtsi | 7 +++----
arch/arm/boot/dts/bcm2835-common.dtsi | 6 ++++++
arch/arm/boot/dts/bcm283x.dtsi | 6 ------
drivers/char/hw_random/Kconfig | 2 +-
drivers/char/hw_random/iproc-rng200.c | 1 +
6 files changed, 12 insertions(+), 11 deletions(-)
--
2.24.0
