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    Subject[PATCH v2 0/3] Raspberry Pi 4 HWRNG Support
    Date
    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

    --
    2.24.0



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