Re: [PATCH v2 0/3] Raspberry Pi 4 HWRNG Support

Herbert Xu
2019-12-11T09:34:20Z

On Mon, Nov 18, 2019 at 10:14:04PM -0800, Stephen Brennan wrote:
> 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 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 (1):
> ARM: dts: bcm2711: Enable HWRNG support
>
> .../devicetree/bindings/rng/brcm,iproc-rng200.txt | 1 +
> arch/arm/boot/dts/bcm2711.dtsi | 6 +++---
> arch/arm/boot/dts/bcm2835.dtsi | 1 +
> arch/arm/boot/dts/bcm2836.dtsi | 1 +
> arch/arm/boot/dts/bcm2837.dtsi | 1 +
> arch/arm/boot/dts/bcm283x-common.dtsi | 11 +++++++++++
> arch/arm/boot/dts/bcm283x.dtsi | 6 ------
> drivers/char/hw_random/Kconfig | 2 +-
> drivers/char/hw_random/iproc-rng200.c | 1 +
> 9 files changed, 20 insertions(+), 10 deletions(-)
> create mode 100644 arch/arm/boot/dts/bcm283x-common.dtsi

Patches 1-2 applied. Thanks.
--
Email: Herbert Xu <herbert@gondor.apana.org.au>
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