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From:   Stephen Brennan <stephen@brennan.io>
To:     stephen@brennan.io
Cc:     Matt Mackall <mpm@selenic.com>,
        Herbert Xu <herbert@gondor.apana.org.au>,
        Rob Herring <robh+dt@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Ray Jui <rjui@broadcom.com>,
        Scott Branden <sbranden@broadcom.com>,
        bcm-kernel-feedback-list@broadcom.com,
        Eric Anholt <eric@anholt.net>,
        Stefan Wahren <wahrenst@gmx.net>,
        Arnd Bergmann <arnd@arndb.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Florian Fainelli <f.fainelli@gmail.com>,
        linux-crypto@vger.kernel.org, devicetree@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-rpi-kernel@lists.infradead.org
Message-ID: <20191118075807.165126-1-stephen@brennan.io>
Subject: [PATCH 0/3] Raspberry Pi 4 HWRNG Support
Date:   Sun, 17 Nov 2019 23:58:04 -0800
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Sender: linux-crypto-owner@vger.kernel.org
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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 patch, the same command gives two random bytes.

[1]: https://github.com/lategoodbye/rpi-zero/tree/bcm2711-hwrng

---

Stefan Wahren (3):
  dt-bindings: rng: add BCM2711 RNG compatible
  hwrng: iproc-rng200: Add support for BCM2711
  ARM: dts: bcm2711: Enable HWRNG support

 Documentation/devicetree/bindings/rng/brcm,iproc-rng200.txt | 1 +
 arch/arm/boot/dts/bcm2711.dtsi                              | 5 ++---
 drivers/char/hw_random/Kconfig                              | 2 +-
 drivers/char/hw_random/iproc-rng200.c                       | 1 +
 4 files changed, 5 insertions(+), 4 deletions(-)

--=20
2.24.0