linux-kernel - Re: [PATCH 00/12] bcm63xx-rng conversion to bcm2835-rng

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Date:   Thu, 2 Nov 2017 12:06:24 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Stefan Wahren <stefan.wahren@...e.com>,
        Florian Fainelli <f.fainelli@...il.com>
Cc:     Krzysztof Kozlowski <krzk@...nel.org>, Ray Jui <rjui@...adcom.com>,
        Eric Anholt <eric@...olt.net>,
        Rob Herring <robh+dt@...nel.org>,
        Steffen Trumtrar <s.trumtrar@...gutronix.de>,
        Harald Freudenberger <freude@...ux.vnet.ibm.com>,
        Russell King <rmk+kernel@...linux.org.uk>,
        "moderated list:BROADCOM BCM2835 ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>,
        PrasannaKumar Muralidharan <prasannatsmkumar@...il.com>,
        Scott Branden <sbranden@...adcom.com>,
        "open list:HARDWARE RANDOM NUMBER GENERATOR CORE" 
        <linux-crypto@...r.kernel.org>, Martin Kaiser <martin@...ser.cx>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "maintainer:BROADCOM BCM281XX/BCM11XXX/BCM216XX ARM ARCHITE..." 
        <bcm-kernel-feedback-list@...adcom.com>,
        Matt Mackall <mpm@...enic.com>,
        Mark Rutland <mark.rutland@....com>,
        "moderated list:BROADCOM BCM2835 ARM ARCHITECTURE" 
        <linux-rpi-kernel@...ts.infradead.org>,
        linux-kernel@...r.kernel.org,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>, Sean Wang <sean.wang@...iatek.com>
Subject: Re: [PATCH 00/12] bcm63xx-rng conversion to bcm2835-rng

Hi Stefan,

On 11/02/2017 12:01 PM, Stefan Wahren wrote:
> Hi Florian,
> 
>> Florian Fainelli <f.fainelli@...il.com> hat am 2. November 2017 um 02:03 geschrieben:
>>
>>
>> Hi,
>>
>> As it usually happens when there is a fair amount of HW IP block re-use,
>> competing implementations show up. In that case the BCM2835 HWRNG driver and
>> the BCM63xx RNG driver have exactly the same register offsets and this is
>> indeed the same piece of HW.
>>
>> This patch series first prepares the bcm2835-rng to be more future proof and
>> support newer platforms, and the last part brings in what is necessary to
>> migrate the bcm63xx-rng over to bcm2835-rng. Finally we delete bcm63xx-rng
>> completely.
>>
>> The reason why BCM2835 RNG was kept over BCM63xx RNG is because the former
>> deals correctly with a warm up count and the number of words available in the
>> FIFO size.
> 
> are these the same patches as in this branch [1]?
> 
> https://github.com/ffainelli/linux/commits/rng-consolidation

Yes, this branch contains these 12 patches.
-- 
Florian